Difference between revisions of "IAC NaI Detectors"

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| Run#||Source|| Run Duration (s) || HV (V) || ADC Channel (V792/root)|| Spectrum
 
| Run#||Source|| Run Duration (s) || HV (V) || ADC Channel (V792/root)|| Spectrum
 
|-
 
|-
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|  2753 || Co60 || min s || 1090 || 2 / ADC3  ||  [[Image:hrrl_pos_det_calb_det1_r2753.png | 200 px]]
+
|  2753 || Co60 || 10 min 3 s || 1090 || 2 / ADC3  ||  [[Image:hrrl_pos_det_calb_det1_r2753.png | 200 px]]
 
|}
 
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Revision as of 23:30, 23 February 2012

Spectrum of 60Co, peaks at 1.17 and 1.33 MeV

Co60: http://ie.lbl.gov/toi/nuclide.asp?iZA=270060

Two peaks at 1173.2374 keV and 1332.5015 keV

Na22 Spectrum: 1274.532 keV

Na22: http://ie.lbl.gov/toi/nuclide.asp?iZA=110022

Na22 emits: 0.510998928(11) MeV


General info on IAC NaI detector

[[1]]

Crystal size

NaI crystal sizes: 3”x3”

PMT base configureation

HRRL Positron Our Modified PMT Base Design.png

IAC NAI_0

analysis commands

/home/daq/CODA/CODAreader/UsingROOTnEVIO/Oleksiy/evio2nt -fr2177.dat > /dev/null

mv r2177 r2177.root

root r2177.root

TH1F * Hist1=new TH1F("Hist1","Hist1",4096,-0.5,4095.5);

ntuple->Draw("ADC1 >> Hist1")

Run Number Source Running Time (sec) HV (Volts) Disc. Thresh (mV) Integrate Gate ([math]\mu[/math] s) Anode Histogram
2178
2179 Cosmic 18 h 4 min 07 s 634 26 0.8 IAC NaI r2179.png IAC NaI r2179 logy.png
2180 Cosmic 18 min 37 s 661 26 0.8 IAC NaI r2180.png IAC NaI r2180 logy.png
2182 Cosmic 19 min 21 s 690 26 0.8 IAC NaI r2182.png IAC NaI r2182 logy.png
2183 Cosmic + Na22 22 min 44 s 690 26 0.8 IAC NaI r2183.png IAC NaI r2183 logy.png
2192 Cosmic + Na22 51 s 995 24 2 IAC NaI r2192.png
2193 Cosmic 18 h 3 min 12 s 995 24 2 IAC NaI r2193.png
2194 Cosmic + Co60 35 995 24 2 IAC NaI r2194.png
2196 Cosmic + Co60 8 min 55 s 900 24 2 IAC NaI r2196.png
2197 Cosmic + Na22 6 min 35 900 24 2 IAC NaI r2197.png
2199 Cosmic + Co60 1 h 1 min 52 s 800 24 2 IAC NaI r2199.png
2200 Cosmic + Na22 45 min 23 s 800 24 2 IAC NaI r2200.png
2201 Cosmic + Na22 2 min 55 s 800 4 2 IAC NaI r2201.png
2202 Cosmic + Na22 1 min 45 s 900 4 2 IAC NaI r2202.png
2204 Cosmic + Na22 6 min 47 s 700 0 2 IAC NaI r2204.png
2205 Cosmic + Na22 3 min 9 s 1000 30 2 IAC NaI r2205.png
2206 Cosmic + Co60 min s 1000 30 2 IAC NaI r2206.png
2208 Cosmic + Co60 1 min 27 s 1050 20 2 IAC NaI r2208.png
2209 Cosmic + Na22 115 s 1050 20 2 IAC NaI r2209.png
2210 Cosmic + Na22 77 s 1050 10 2 IAC NaI r2210.png
2211 Cosmic + Co60 153 s 1050 10 2 IAC NaI r2211.png
2212 Cosmic + Co60 34 s 1050 0 2 IAC NaI r2212.png
2213 Cosmic + Na22 119 s 1050 0 2 IAC NaI r2213.png
2214 Cosmic 22 h 15 min 49 s 1050 0 2 IAC NaI r2214.png
2215 Co60 s 1075 10 2


Detector and Parts

IAC NaI Detectors and Parts 1.png IAC NaI Detectors and Parts 2.png IAC NaI Detectors and Parts 3.png IAC NaI Detectors and Parts 4.png IAC NaI Detectors and Parts 5.png IAC NaI Detectors and Parts 6.png IAC NaI Detectors and Parts 7.png

Big pulse due to scope 1 M ohm scope resistance

Pulses in the following to detectors are huge due to we used wrong scope resistance of 1 M ohm.

IAC NAI_1

Without Mu material:

HV = 700 V

IAC NaI Det1 Scope 1.png

With Mu material:

HV = 700 V

IAC NaI Det1 Scope 2.png


IAC_NAI_2

With Mu material

HV = 700 V

IAC NaI Det2 Scope 1.png

Tests with 50 Ohm Scope Resistance

All the following tests are done under 700 V.

IAC NAI_1 with Base #1

Detector # 1 with Base #1:

IAC NaI Det1 Base1 Scope 50Ohm 1.png


IAC NAI_2 with Base #2

Detector # 2 with Base #2:

IAC NaI Det2 Base2 Scope 50Ohm 1.png

IAC NAI_3 with Base #3

Detector # 3 with Base #3:

IAC NaI Det3 Base3 Scope 50Ohm 1.png


IAC NAI_4 with Base #4

Detector # 4 with Base #4:

IAC NaI Det4 Base4 Scope 50Ohm 1.png


Calibration

Hrrl INa pos ann det test setup diagram.png



Starting CODA

Starting

Do it at 7 different terminal.

Need to do command on all of them:

source CODA/setup

1st Terminal

msqld

~ >msqld

Can't start server : IP Bind : Address already in use


Need to kill the process

ps -aux | grep msqld 

Warning: bad syntax, perhaps a bogus '-'? See /usr/share/doc/procps-3.2.7/FAQ
daq       7724  0.0  0.0   2216   828 ?        S    Sep26   0:00 msqld
daq      23620  0.0  0.0   3912   684 pts/0    R+   14:12   0:00 grep msqld

~ >kill -9 7724


~ >msqld

mSQL Server 1.0.16coda starting ...

setjmp returned 0

Checking Authority to use databases in /usr/local/coda/common/rcdb

loading administration ACL msql.acl

admin ACL loaded

loading ACL for database LDS.back

Warning : Couldn't open ACL file: No such file or directory

database LDS.back ACL loaded.

loading ACL for database LDS

Warning : Couldn't open ACL file: No such file or directory

database LDS ACL loaded.

loading ACL for database LDS.back1

Warning : Couldn't open ACL file: No such file or directory

database LDS.back1 ACL loaded.

ACL load done

2nd Terminal

telnet roc1 

Check if connected by "ls" command, see if you can see libraries there.

load 2 Libraries:

ld < v775Lib.o

ld < v792Lib.o

telnet: connect to address 10.1.1.2: Connection refused

Turn off Firewall

As super users execute:

/sbin/service iptables stop

telnet: connect to address 10.1.1.2: No route to host

Restart roc1, first by turning off small pushing button, then by red button on the top.

Sorry, session limit reached. Connection closed by foreign host

Restart.

No route to host

~ >source CODA/setup

~ >telnet roc1

Trying 10.1.1.2...

telnet: connect to address 10.1.1.2: No route to host

~ >

Restart roc1, first by turning off small pushing button, then by red button on the top.

3rd Terminal

et_start -v -s 70000 -n 200

~ >cource CODA/setup

cource: Command not found.

~ >source CODA/setup

~ >et_start -v -s 70000 -n 200

et_start: asking for 70000 byte events.

et_start: asking for 200 events.

et_start: starting ET system /tmp/et_sys_DAQ

et ERROR: et_system_start, ET system process already exists!

et_start: error in starting ET system

~ >rm /tmp/et_sys_DAQ

~ >et_start -v -s 70000 -n 200

et_start: asking for 70000 byte events.

et_start: asking for 200 events.

et_start: starting ET system /tmp/et_sys_DAQ

need to delete the old memory file /tmp/et_sys_DAQ

4th Terminal

rcServer


~ >source CODA/setup

~ >ps -aux | grep rcServer

Warning: bad syntax, perhaps a bogus '-'? See /usr/share/doc/procps-3.2.7/FAQ

daq 23886 0.0 0.0 3912 692 pts/20 S+ 14:39 0:00 grep rcServer

~ >rcServer

Warning: RunControl Server: DAQ may be running already

Info: RunControl Server DAQ is not running on port 2052

Listening for UDP on port 2052

sh: cmlog_activate: command not found

run control up and running!!

daLogMsg: run control up and running!!

tried to kill them

~ >ps -aux | grep rcServer

Warning: bad syntax, perhaps a bogus '-'? See /usr/share/doc/procps-3.2.7/FAQ

daq 23980 0.0 0.0 3912 716 pts/20 R+ 14:44 0:00 grep rcServer

~ >kill -9 23980

23980: No such process

~ >ps -aux | grep rcServer

Warning: bad syntax, perhaps a bogus '-'? See /usr/share/doc/procps-3.2.7/FAQ

~ >ps -aux | grep rcServer

Warning: bad syntax, perhaps a bogus '-'? See /usr/share/doc/procps-3.2.7/FAQ

~ >rcServer

Warning: RunControl Server: DAQ may be running already

Info: RunControl Server DAQ is not running on port 2052

Listening for UDP on port 2052

sh: cmlog_activate: command not found

run control up and running!!

daLogMsg: run control up and running!!

5th Terminal

coda_eb -i -s DAQ -n eb1 -t CDEB

CODA 2.5,Name : eb1, Type CDEB Id : 0

sh: cmlog_activate: command not found 

"eb1" state now "booted"

daLogMsg: "eb1" state now "booted"

6th Terminal

coda_er -i -s DAQ -n LDS_ER -t ROC


~ >source CODA/setup

~ >coda_er -i -s DAQ -n LDS_ER -t ROC

CODA 2.5,Name : LDS_ER, Type ER Id : 0

sh: cmlog_activate: command not found 

"LDS_ER" state now "booted"

daLogMsg: "LDS_ER" state now "booted"

DAQ::LDS_ER>

7th Terminal

runcontrol

1st Attempt - Failed

msqld

telnet roc1

et_start

rcServer

coda_eb

coda_er

runcontrol

Run Control Interface

1st Attempt

Then Run control interface appears.


1. Press "Connect"

2. Press "Configure" (on the top middle)

Then "Run Type Configuration" appears

3. Select "SIS3610", Press "OK"

4. Press "Configure" again.

5. Select "V792_ADC", Press "OK"

6 Press "Download"

Second Attempt to Start CODA

msqld

telnet roc1

et_start

rcServer

coda_eb

coda_er

runcontrol

Run Control Interface

1. connect

2. Configure

3. Select V792_ADC

4. at "REad From" select "roc1"

5. Configure

6. Download


Then stopped.



Dr. Forest looked all the terminals and said all of them are resdponding except roc1

He restarted roc1, Then followings are what he had done


~ >source CODA/setup

~ >msqld


mSQL Server 1.0.16coda starting ...

Can't start server : IP Bind : Address already in use

~ >telnet roc1

Trying 10.1.1.2...

Connected to roc1.

Escape character is '^]'.

-> -> -> -> telnet> ^[[A^[[B

?Invalid command

telnet> quit

Connection closed.

~ >telnet roc1

Trying 10.1.1.2...

Connected to roc1.

Escape character is '^]'.

telnetd: This system *IN USE* via telnet.

shell restarted.

-> shell restarted.

-> reboot

telnet> quit

Connection closed.

~ >telnet roc1

Trying 10.1.1.2...

^]^] ~ >ping roc1

PING roc1.physics.isu.edu (10.1.1.2) 56(84) bytes of data.

From localdaq.physics.isu.edu (10.1.1.1) icmp_seq=1 Destination Host Unreachable

--- roc1.physics.isu.edu ping statistics ---

4 packets transmitted, 0 received, +1 errors, 100% packet loss, time 2999ms


~ >ping roc1

PING roc1.physics.isu.edu (10.1.1.2) 56(84) bytes of data.

From localdaq.physics.isu.edu (10.1.1.1) icmp_seq=3 Destination Host Unreachable

From localdaq.physics.isu.edu (10.1.1.1) icmp_seq=4 Destination Host Unreachable


--- roc1.physics.isu.edu ping statistics ---

7 packets transmitted, 0 received, +2 errors, 100% packet loss, time 5998ms

, pipe 2

~ >ping roc1

PING roc1.physics.isu.edu (10.1.1.2) 56(84) bytes of data.

From localdaq.physics.isu.edu (10.1.1.1) icmp_seq=2 Destination Host Unreachable

From localdaq.physics.isu.edu (10.1.1.1) icmp_seq=3 Destination Host Unreachable

From localdaq.physics.isu.edu (10.1.1.1) icmp_seq=4 Destination Host Unreachable


--- roc1.physics.isu.edu ping statistics ---

5 packets transmitted, 0 received, +3 errors, 100% packet loss, time 3999ms

, pipe 3

~ >ping roc1

PING roc1.physics.isu.edu (10.1.1.2) 56(84) bytes of data.


--- roc1.physics.isu.edu ping statistics ---

13 packets transmitted, 0 received, 100% packet loss, time 11998ms


~ >who

daq tty1 2011-09-25 19:20

daq pts/0 2011-10-14 14:22 (:0.0)

daq pts/1 2011-10-14 14:20 (:0.0)

daq pts/3 2011-10-14 14:22 (:0.0)

daq pts/7 2011-09-28 16:58 (winnebago.iac.isu.edu)

daq pts/8 2011-10-05 09:38 (:0.0)

daq pts/9 2011-10-10 10:17 (:0.0)

daq pts/10 2011-10-05 10:05 (:0.0)

daq pts/11 2011-10-05 11:33 (:0.0)

daq pts/12 2011-10-05 11:20 (:0.0)

daq pts/13 2011-10-07 13:55 (:0.0)

daq pts/14 2011-10-10 12:47 (134.50.3.21)

daq pts/15 2011-10-12 10:58 (134.50.203.192)

daq pts/16 2011-10-10 10:33 (:0.0)

daq pts/17 2011-10-12 12:28 (134.50.203.192)

daq pts/18 2011-10-10 10:50 (:0.0)

daq pts/20 2011-10-14 14:42 (:0.0)

daq pts/21 2011-10-14 14:47 (:0.0)

daq pts/22 2011-10-14 14:49 (:0.0)

daq pts/23 2011-10-14 14:49 (:0.0)

daq pts/24 2011-10-14 15:03 (:0.0)

daq pts/25 2011-10-14 15:14 (:0.0)

daq pts/26 2011-10-14 15:16 (:0.0)

daq pts/27 2011-10-14 15:17 (:0.0)

daq pts/28 2011-10-14 15:18 (:0.0)

daq pts/29 2011-10-14 15:26 (:0.0)

daq pts/30 2011-10-14 15:42 (:0.0)

~ >ping roc1

PING roc1.physics.isu.edu (10.1.1.2) 56(84) bytes of data.

From localdaq.physics.isu.edu (10.1.1.1) icmp_seq=10 Destination Host Unreachable

From localdaq.physics.isu.edu (10.1.1.1) icmp_seq=10 Destination Host Unreachable

From localdaq.physics.isu.edu (10.1.1.1) icmp_seq=10 Destination Host Unreachable

From localdaq.physics.isu.edu (10.1.1.1) icmp_seq=10 Destination Host Unreachable

From localdaq.physics.isu.edu (10.1.1.1) icmp_seq=10 Destination Host Unreachable

From localdaq.physics.isu.edu (10.1.1.1) icmp_seq=10 Destination Host Unreachable


--- roc1.physics.isu.edu ping statistics ---

19 packets transmitted, 0 received, +6 errors, 100% packet loss, time 17998ms

, pipe 3

~ >ping roc1

PING roc1.physics.isu.edu (10.1.1.2) 56(84) bytes of data.

64 bytes from roc1.physics.isu.edu (10.1.1.2): icmp_seq=1 ttl=64 time=0.125 ms

64 bytes from roc1.physics.isu.edu (10.1.1.2): icmp_seq=2 ttl=64 time=0.277 ms

64 bytes from roc1.physics.isu.edu (10.1.1.2): icmp_seq=3 ttl=64 time=0.199 ms

64 bytes from roc1.physics.isu.edu (10.1.1.2): icmp_seq=4 ttl=64 time=0.086 ms

64 bytes from roc1.physics.isu.edu (10.1.1.2): icmp_seq=5 ttl=64 time=0.225 ms


--- roc1.physics.isu.edu ping statistics ---

5 packets transmitted, 5 received, 0% packet loss, time 3999ms

rtt min/avg/max/mdev = 0.086/0.182/0.277/0.069 ms

~ >telnet roc1

Trying 10.1.1.2...

Connected to roc1.

Escape character is '^]'.


-> ls

.

..

1

bin1.bin

dmaPLib.o

fadcLib.o

fadcMolLib.o

faSetProcMode

GEMReadout_31MHz_Rev4_1_Test.rbf

GEMReadout_32Mhz_Rev4.rbf

GEMReadout_40Mhz_Rev4_1.rbf

GEMReadout_40Mhz_Rev4.rbf

GEMReadout_NoPLL_Rev4.rbf

sis3610Lib.o

universeDma.h


universeDma.o

universeDma.o.5100

universeDma.o.vw54

usrTempeDma.o

v1495Lib.o

v260_bak.o

v260Lib.o

v775Lib.o

v775Lib.o.bak

v792_dmaLib.o

v792Lib.o

v792Lib.o.bak

value = 0 = 0x0

-> ld < v775Lib.o

Undefined symbol: sysVmeDmaSend (binding 1 type 0)

Undefined symbol: sysVmeDmaDone (binding 1 type 0)

ld error: Module contains undefined symbol(s) and may be unusable.

value = 0 = 0x0

-> ld < v792Lib.o

Undefined symbol: sysVmeDmaSend (binding 1 type 0)

Undefined symbol: sysVmeDmaDone (binding 1 type 0)

ld error: Module contains undefined symbol(s) and may be unusable.

value = 0 = 0x0

->




Then he looked at runcontrol and said he has no other solution than to restart daq computer (local host) for error "Cannot open broadcast Handler"


~ >runcontrol

sh: uncompress: command not found

sh: uncompress: command not found

Warning: RunControl Server: DAQ may be running already

Info: RunControl Server DAQ is not running on port 2052

Cannot open broadcast Handler

Cannot open broadcast Handler

Cannot open broadcast Handler


Cannot open broadcast Handler

But Tamuna is transferring data, so I am going to do it later.

Third Attempt to Start CODA

msqld

telnet roc1

~ >source CODA/setup

~ >telnet roc1

Trying 10.1.1.2...

Connected to roc1.

Escape character is '^]'.

->

et_start

~ >source CODA/setup

~ >et_start -v -s 70000 -n 200

et_start: asking for 70000 byte events.

et_start: asking for 200 events.

et_start: starting ET system /tmp/et_sys_DAQ

Segmentation fault

~ >

rcServer

~ >source CODA/setup

~ >rcServer

Listening for UDP on port 2052

sh: cmlog_activate: command not found

run control up and running!!

daLogMsg: run control up and running!!

coda_eb

~ >source CODA/setup

~ >coda_eb -i -s DAQ -n eb1 -t CDEB

CODA 2.5,Name : eb1, Type CDEB Id : 0

sh: cmlog_activate: command not found 

"eb1" state now "booted"

daLogMsg: "eb1" state now "booted"

DAQ::eb1>

coda_er

~ >source CODA/setup

~ >coda_er -i -s DAQ -n LDS_ER -t ROC

CODA 2.5,Name : LDS_ER, Type ER Id : 0

sh: cmlog_activate: command not found 

"LDS_ER" state now "booted"

daLogMsg: "LDS_ER" state now "booted"

DAQ::LDS_ER>

runcontrol

~ >source CODA/setup

~ >runcontrol

sh: uncompress: command not found

sh: uncompress: command not found

Runcotrol User interface

Connect

Configure

SIS3610

Download

Then, dead

Dr. Forest fixed with restarted daq machine

4th Trial

Error art telnet roc1

~ >telnet roc1

Trying 10.1.1.2...

telnet: connect to address 10.1.1.2: No route to host

Firewall of daq is on. If Firewall is on, ROC won't be able to read data from daq. Need to turn it off after log in as super user:

~ >su

Password:

[root@daq1 daq]# /sbin/service iptables stop

Flushing firewall rules: [ OK ]

Setting chains to policy ACCEPT: filter [ OK ]

Unloading iptables modules: [ OK ]

[root@daq1 daq]#

5th Trial

After running runcontrol, runcontrol is dead

Download configuration to ROC

  1. Click COnfigure in the Runcontrol GUI
  2. select V775_TDC from the pull down menu
  3. click the download button in the runcontrol GUI
 You should see message appears on several of the open windows.  
You should see information in the ROC window.  If you see error 
messages check that you loaded the libraries with the commands

-> ld <v792Lib.o
-> ld < v775Lib.o

Data Analysis with ROOTSYS

1st trial

Creating Histogram

~/data >~/CODA/CODAreader/UsingROOTnEVIO/Oleksiy/evio2nt -fr2581.dat > /dev/null

home/daq/CODA/CODAreader/UsingROOTnEVIO/Oleksiy/evio2nt: error while loading shared libraries: libet.so: cannot open shared object file: No such file or directory


Changing Name

~/data >mv r2581 r2581.root

Starting ROOTSYS

~/data >root r2581.root


I forgot source CODA

2nd Trial - Successful trial

source ~/CODA/setup

Monitoring data old way

~/CODA/CODAreader/UsingROOTnEVIO/Oleksiy/evio2nt -fr2581.dat > /dev/null

mv r2581 r2581.root

root r2581.root

Create histogram for data to see it in finer binning:

TH1F *Hist1=new TH1F("Hist1","Hist1",4600,0.5,4600.5)

ntuple->Draw("ADC2 >> Hist1")


Monitoring data on line

~/CODA/CODAreader/UsingROOTnEVIO/Oleksiy/Monitor/hsimple -dev 1 -chan 1


Detector Test

Det1

Co60 test 1

Co60 activity: 954.1 nCi


Run # Source Run Duration (s) HV (V) ADC Channel (V792/root) Spectrum
2614 Co60 19 s 1015 1 / ADC2 Hrrl pos det calb det1 r2614.png
2615 Co60 23 s 1050 1 / ADC2 Hrrl pos det calb det1 r2615.png
2616 Co60 40 s 1100 1 / ADC2 Hrrl pos det calb det1 r2616.png
2617 Co60 2 min 30 s 1090 1 / ADC2 Hrrl pos det calb det1 r2617.png
2618 Co60 2 min 27 s 1090 0 / ADC1 Hrrl pos det calb det1 r2618.png
2619 Co60 1 min 35 s 1090 31 / ADC32 Empty
2620 Co60 3 min 29 s 1090 2 / ADC3 Hrrl pos det calb det1 r2620.png 


Channel 0 appears to be noisy compared to channel 1 and 2.  Perhaps Channel 31 has a software problem?

Na22 test 1

Na22 activity: 1196 nCi

Run # Source Run Duration (s) HV (V) ADC Channel (V792/root) Spectrum
2621 Na22 6 min 17 s 1090 2 / ADC3 Hrrl pos det calb det1 r2621.png

Cosmic test 1

Run # Source Run Duration (s) HV (V) ADC Channel (V792/root) Spectrum
2622 Cosmic 2 h 13 min 4 s 1090 2 / ADC3 Hrrl pos det calb det1 r2622.png


More Tests on Det1

Run # Source Run Duration (s) HV (V) ADC Channel (V792/root) Spectrum
2678 Cosmic 14 h 32 min 24 s 1090 2 / ADC3 Hrrl pos det calb det1 r2678.png
2679 Na22 30 min 3 s 1090 2 / ADC3 Hrrl pos det calb det1 r2679.png
2680 Na22 1 h 15 min 0 s 1080 2 / ADC3 Hrrl pos det calb det1 r2680.png
2691 Na22 2 h 11 min 0 s 1070 2 / ADC3 Hrrl pos det calb det1 r2691.png
2692 Na22 4 h 32 min 0 s 1060 2 / ADC3 Hrrl pos det calb det1 r2692.png
2713 Na22 1500 IAC NaI Det test gate study 2.png 3 h 2 min 0 s 1050 2 / ADC3 Hrrl pos det calb det1 r2713.png
2714 Na22 1500 IAC NaI Det test gate study 2.png 1 h 0 min 30 s 1040 2 / ADC3 Hrrl pos det calb det1 r2714.png
2715 cosmic 1500 IAC NaI Det test gate study 2.png 13 h 30 min 0 s 1090 2 / ADC3 Hrrl pos det calb det1 r2715.png
2716 Na22 1500 IAC NaI Det test gate study 2.png 1 h 20 min 1 s 1030 2 / ADC3 Hrrl pos det calb det1 r2716.png
2717 Na22 1500 IAC NaI Det test gate study 2.png 1 h 35 min 0 s 1020 2 / ADC3 Hrrl pos det calb det1 r2717.png
2718 Na22 1500 IAC NaI Det test gate study 2.png 30 min 0 s 1010 2 / ADC3 Hrrl pos det calb det1 r2718.png
2719 Na22 1500 IAC NaI Det test gate study 2.png 30 min 0 s 1000 2 / ADC3 Hrrl pos det calb det1 r2719.png
2720 Na22 1500 IAC NaI Det test gate study 2.png 30 min 0 s 10 2 / ADC3 Hrrl pos det calb det1 r2720.png

More test on Det1 with Co60

Run# Source Run Duration (s) HV (V) ADC Channel (V792/root) Spectrum
2750 Co60 min s 1090 2 / ADC3 200 px

ROC was dead. I think it is because I amplified the signal from dynode by 20 times, the trigger is too frequent for daq to handle.

I lowered the amplification to X1, which is no amplification.

Run# Source Run Duration (s) HV (V) ADC Channel (V792/root) Spectrum
2752 Co60 10 min 0 s 1090 2 / ADC3 Hrrl pos det calb det1 r2752.png

Turn out to be that no amplification is not good. When I look at spectrum, it does not look good.

I put the amplification to X10.

Run# Source Run Duration (s) HV (V) ADC Channel (V792/root) Spectrum
2753 Co60 10 min 3 s 1090 2 / ADC3 200 px

Det1 Cal

Run # Source Run Duration (s) HV (V) ADC Channel (V792/root) Spectrum
2679 Na22 30 min 3 s 1090 2 / ADC3 Hrrl pos det calb det1 r2679 Fit.png

Fit for 0.511 MeV peak 

 FCN=185.14 FROM MIGRAD    STATUS=CONVERGED      82 CALLS          83 TOTAL
 EDM=5.13867e-05    STRATEGY= 1      ERROR MATRIX ACCURATE 
 EXT PARAMETER                                   STEP         FIRST   
 NO.   NAME      VALUE            ERROR          SIZE      DERIVATIVE 
  1  Constant     3.14332e+03   7.42152e+00   3.57653e-02  -9.99216e-04
  2  Mean         8.09748e+02   1.20205e-01   7.99914e-04  -1.83671e-02
  3  Sigma        5.10096e+01   1.58059e-01   5.96620e-06   2.62413e+00

Fit for 0.511 MeV peak

Det2

Co60 test 2

Co60 activity: 954.1 nCi

Run # Source Run Duration (s) HV (V) ADC Channel (V792/root) Spectrum
2623 Co60 2 min 25 s 902 2 / ADC3 Hrrl pos det calb det1 r2623.png
2624 Co60 2 min 22 s 1000 2 / ADC3 Hrrl pos det calb det1 r2624.png
2625 Co60 2 min 4 s 1100 2 / ADC3 Hrrl pos det calb det1 r2625.png
2626 Co60 2 min 8 s 1080 2 / ADC3 Hrrl pos det calb det1 r2626.png

Na22 test 2

Run # Source Run Duration (s) HV (V) ADC Channel (V792/root) Spectrum
2627 Na22 1 min 39 s 1080 2 / ADC3 Hrrl pos det calb det1 r2627.png


Cosmic test 2

Run # Source Run Duration (s) HV (V) ADC Channel (V792/root) Spectrum
2628 Cosmic 2 h 4 min 14 s 1080 2 / ADC3 Hrrl pos det calb det1 r2628.png


Pulse generator test

Haithum was using pulser. I saw pulses from the pulser on the scope. I want to study its effect on the spectrum.

Run # pulser Source Run Duration (s) HV (V) ADC Channel (V792/root) Spectrum
2629 off Na22 2 min 33 s 1080 2 / ADC3 Hrrl pos det calb det1 r2629.png Hrrl pos det calb det1 r2629 zoom.png

More test on Det2

Re-setup data acquisition system. The signal delay was not long enough, some signals were not totally included int the gate. So, I delayed signal even longer, and made gate wider. Now, whenever there is a trigger, all the signal is included. However, if I trig on the signal on the scope, I see that there were not trig for all the signal. In other words, we are missing some signals. 

Is this a discriminator problem?

It was misplacement of the source. I accidentally dropped the source. 
Source was on the top of one of the Pb brick around detector.
Run # Source Gate width (ns) Run Duration (s) HV (V) ADC Channel (V792/root) Spectrum
2698 cosmic 3100 IAC NaI Det test gate study trig delay 1.png IAC NaI Det test gate study trig gate 1.png 9 h 35 min 0 s 1080 2 / ADC3 Hrrl pos det calb det2 r2698.png
2699 Na22 3100 IAC NaI Det test gate study trig delay 1.png IAC NaI Det test gate study trig gate 1.png 40 min s 1080 2 / ADC3 Hrrl pos det calb det1 r2699.png

From run 2699, it looks like making the gate too wide is not a good idea.

I am going to make the Gate narrower.

Run # Source Gate width (ns) Run Duration (s) HV (V) ADC Channel (V792/root) Spectrum
2703 Na22 1500 IAC NaI Det test gate study 2.png 51 min 1 s 1090 2 / ADC3 Hrrl pos det calb det1 r2703.png
2704 Na22 1500 IAC NaI Det test gate study 2.png 2 h 4 min 0 s 1080 2 / ADC3 Hrrl pos det calb det1 r2704.png
2705 Na22 1500 IAC NaI Det test gate study 2.png 4 h 50 min 0 s 1070 2 / ADC3 Hrrl pos det calb det1 r2705.png
2706 cosmic 1500 IAC NaI Det test gate study 2.png 11 h 30 min 0 s 1080 2 / ADC3 Hrrl pos det calb det1 r2706.png
2707 Na22 1500 IAC NaI Det test gate study 2.png 3 h 3 min 1 s 1060 2 / ADC3 Hrrl pos det calb det1 r2707.png
2708 Na22 1500 IAC NaI Det test gate study 2.png 50 min 0 s 1050 2 / ADC3 Hrrl pos det calb det1 r2708.png
2709 Na22 1500 IAC NaI Det test gate study 2.png 52 min 0 s 1040 2 / ADC3 Hrrl pos det calb det1 r2709.png
2710 Na22 1500 IAC NaI Det test gate study 2.png 1 h 3 min 0 s 1030 2 / ADC3 Hrrl pos det calb det1 r2710.png
2711 Na22 1500 IAC NaI Det test gate study 2.png 1 h 34 min 1 s 1020 2 / ADC3 Hrrl pos det calb det1 r2711.png
2712 Na22 1500 IAC NaI Det test gate study 2.png 15 min 0 s 1010 2 / ADC3 Hrrl pos det calb det1 r2712.png

Det3

Co60 test 3

Co60 activity: 954.1 nCi

Run # Source Run Duration (s) HV (V) ADC Channel (V792/root) Spectrum
2634 Co60 2 min 37 s 1080 2 / ADC3 Hrrl pos det calb det1 r2634.png
2635 Co60 4 min 42 s 1070 2 / ADC3 Hrrl pos det calb det1 r2635.png
2636 Co60 2 min 44 s 1060 2 / ADC3 Hrrl pos det calb det1 r2636.png


Na22 test 3

Na22 activity:

Run # Source Run Duration (s) HV (V) ADC Channel (V792/root) Spectrum
2637 Na22 3 min 10 s 1060 2 / ADC3 Hrrl pos det calb det1 r2637.png
2638 Na22 3 min 32 s 1070 2 / ADC3 Hrrl pos det calb det1 r2638.png
2666 Na22 16 min 4 s 1083 2 / ADC3 Hrrl pos det calb det3 r2666.png
2667 Na22 44 min 17 s 1070 2 / ADC3 Hrrl pos det calb det3 r2667.png
2668 Na22 47 min 4 s 1060 2 / ADC3 Hrrl pos det calb det3 r2668.png
2669 Na22 1 h 19 min 17 s 1050 2 / ADC3 Hrrl pos det calb det3 r2669.png
2672 cosmic 5 h 56 min 11 s 1072 2 / ADC3 Hrrl pos det calb det3 r2672.png
2673 Na22 91 min 51 s 1040 2 / ADC3 Hrrl pos det calb det3 r2673.png
2674 Na22 1 h 48 min 27 s 1030 2 / ADC3 Hrrl pos det calb det3 r2674.png

Na22 and Co60

 you need to do gaussian fits, then calibrate to determine how mannel channels per keV, then apply the calibration
so the x-axis is in keV and redo the gaussian fits so we can see the mean and widths for resolution.
Run # Source Spectrum
2636 and 2637 Na22 + Co60 Hrrl pos det calb det3 r2637 r2636.png


Det3 Calibration

Fit for Na22

1270 keV fit

Na22 Spectrum: 1274.532 keV 

FCN=1068.43 FROM MIGRAD    STATUS=CONVERGED      71 CALLS          72 TOTAL
                    EDM=1.47962e-06    STRATEGY= 1      ERROR MATRIX ACCURATE 
 EXT PARAMETER                                   STEP         FIRST   
 NO.   NAME      VALUE            ERROR          SIZE      DERIVATIVE 
  1  Constant     9.74806e+01   7.44030e-01   8.95468e-03  -6.45762e-04
  2  Mean         2.90338e+03   7.93439e-01   1.24677e-02  -2.15184e-03
  3  Sigma        1.26423e+02   7.26793e-01   2.36010e-05  -9.83475e-02


Det3 Fit for Co60

Two peaks at 1173.2374 keV and 1332.5015 keV

1173 peak fit
 FCN=342.141 FROM MIGRAD    STATUS=CONVERGED      79 CALLS          80 TOTAL
                    EDM=4.56207e-09    STRATEGY= 1      ERROR MATRIX ACCURATE 
 EXT PARAMETER                                   STEP         FIRST   
 NO.   NAME      VALUE            ERROR          SIZE      DERIVATIVE 
  1  Constant     1.04020e+03   5.87977e+00   3.87751e-02   7.26368e-06
  2  Mean         2.61524e+03   5.91374e-01   5.34742e-03   1.24482e-04
  3  Sigma        1.20917e+02   6.58007e-01   1.31469e-05   4.10349e-02


1332 peak fit
FCN=94.0591 FROM MIGRAD    STATUS=CONVERGED      99 CALLS         100 TOTAL
                    EDM=6.18861e-10    STRATEGY= 1      ERROR MATRIX ACCURATE 
 EXT PARAMETER                                   STEP         FIRST   
 NO.   NAME      VALUE            ERROR          SIZE      DERIVATIVE 
  1  Constant     7.76466e+02   5.99951e+00   2.00434e-02   7.70298e-06
  2  Mean         3.04612e+03   1.10085e+00   5.20894e-03  -1.00063e-05
  3  Sigma        1.19244e+02   1.88654e+00   2.37865e-05   5.01673e-03

Linear fit for peaks

Peaks Energy of the peak (keV) Mean at Channel Sigma
511 510.998910 753.682 48.2855
1270 1274.532 2903.38 126.423
1173 1173.2374 2615.24 120.917
1332 1332.5015 3046.12 119.244

Hrrl pos IAC Det3 Cal Fit.png

Hrrl pos IAC Det3 Cal Fit table.png

Intercept: [math] -678.71772 \pm 8.08902 [/math]

Slope: [math] 2.8036 \pm 0.00976 [/math]

[math] y = (-678.7 \pm 8.1) + (2.80 \pm 0.01)x [/math]

[math] En = (-678.7 \pm 8.1) + (2.80 \pm 0.01)*(ADC~Chan) [/math]

So, the calibration is:

(ADC-intercept)/slope = (ADC+678.71772)/2.8036


Run # Source Calibrated Spectrum
2636 and 2637 Na22 + Co60 Hrrl pos det calb det3 r2637 r2636 2.png

HV vs 511 Shift for Det3

Third Na22 peak test Using Detector 3

There were third peak after 1.27 MeV of Na22. This is third peak is the coincidence of 0.511 MeV and 1.27 Mev peaks, according to its position.

We would like to study this peak and its ratio to the 1.27 MeV peak.


Run # Source Run Duration (s) HV (V) ADC Channel (V792/root) Spectrum
2675 Na22 3 h 49 min 32 s 1020 2 / ADC3 Hrrl pos det calb det3 r2675.pngHrrl pos det calb det3 r2675 log.png Hrrl pos det calb det3 r2675 2peaks.png
2676 Na22 (Source moved further away) 3 h 46 min 5 s 1020 2 / ADC3 Hrrl pos det calb det3 r2676.png Hrrl pos det calb det3 r2676 log.png Hrrl pos det calb det3 r2676 2peaks.png
2677 Na22 (Placed close) 5 h 15 min 48 s 1010 2 / ADC3 Hrrl pos det calb det3 r2677.png Hrrl pos det calb det3 r2677 log.png
2682 Na22 (Detector 13 and 3/4 inches away from source) 6 h 10 min 42 s 1020 2 / ADC3 Hrrl pos det calb det1 r2682.pngHrrl pos det calb det1 r2682 log.png
2683 Na22 (Put Pb collimator right in front of Detector, Pb break touching Detector, Detector 13 and 3/4 inches away from source) 14 h 36 min 1020 2 / ADC3 Hrrl pos det calb det1 r2683.pngHrrl pos det calb det1 r2683 log.png
2685 Na22 (Center of 2 inch Pb brick moved to 7 inch, Detector 14 and 3/4 inches away from source) 5 h 59 min 59 s 1020 2 / ADC3 Hrrl pos det calb det1 r2685.pngHrrl pos det calb det1 r2685 log.png
2686 Na22 (Put Pb collimator right in front of Detector, Pb break touching Detector, Detector 7 inches away from source) 3 h 22 min 0 s 1020 2 / ADC3 Hrrl pos det calb det1 r2686.pngHrrl pos det calb det1 r2686 log.png
2687 Na22 (Pb collimator removed, Detector 7 inches away from source) 15 h 30 min 1 s 1020 2 / ADC3 Hrrl pos det calb det1 r2687.png Hrrl pos det calb det1 r2687 log.png
2688 Cosmic 22 h 19 min 59 s 1020 2 / ADC3 Hrrl pos det calb det1 r2688.png Hrrl pos det calb det1 r2688 log.png
2689 Na22 (Source is placed in one side Pb Collimator's hole, Detector placed on the other side of the hole, they are 2 inches apart) 1 h 10 min 0 s 1020 2 / ADC3 Hrrl pos det calb det1 r2689.png Hrrl pos det calb det1 r2689 log.png
2690 Na22 (Source is 2 inches apart, Pb brick removed, nothing between source and detector) 1 h 10 min 0 s 1020 2 / ADC3 Hrrl pos det calb det1 r2690.pngHrrl pos det calb det1 r2690 log.png
269 Na22 () h min s 1020 2 / ADC3 200 px
269 Na22 () h min s 1020 2 / ADC3 200 px

Calculation for PB Shielding

Pb X-Ray Mass Attenuation Coefficients

X-Ray Mass Attenuation Coefficients for elemental media

X-Ray Mass Attenuation Coefficients Theory

X-Ray Mass Attenuation Coefficients for compounds and mixtures

NIST Tables of X-Ray Mass Attenuation Coefficients and Mass Energy-Absorption Coefficients from 1 keV to 20 MeV for Elements Z = 1 to 92 and 48 Additional Substances of Dosimetric Interest

Det 4

Co60 test 4

Run # Source Run Duration (s) HV (V) ADC Channel (V792/root) Spectrum
2639 Co60 3 min 4 s 1070 2 / ADC3 Hrrl pos det calb r2639.png
2640 Co60 5 min 18 s 1060 2 / ADC3 Hrrl pos det calb r2640.png


Na22 test 4

Run # Source Run Duration (s) HV (V) ADC Channel (V792/root) Spectrum
2641 Na22 3 min 18 s 1060 2 / ADC3 Hrrl pos det calb r2641.png
2642 Na22 3 min 1 s 1070 2 / ADC3 Hrrl pos det calb r2642.png


Cosmic test 4

Run # Source Run Duration (s) HV (V) ADC Channel (V792/root) Spectrum
2643 Cosmic 3 h 55 min 5 s 1070 2 / ADC3 Hrrl pos det calb r2643.png
2644 Cosmic 8 h 27 min 53 s 1060 2 / ADC3 Hrrl pos det calb r2644.png


ROC1 crashed and run 2644 stopped. I lost information when it was started and ended. I checked the property of the r2644.dat file by right clicking on it. It says

Modified: Mon 21 Nov 2011 05:07:48 AM MST

Accessed: Sun 20 Nov 2011 08:39:55 PM MST


More Tests on Det4

Run # Source Run Duration (s) HV (V) ADC Channel (V792/root) Spectrum
2720 Na22 1500 IAC NaI Det test gate study 2.png 7 h 0 min 0 s 1070 2 / ADC3 Hrrl pos det calb det1 r2720.png
2721 Cosmic 1500 IAC NaI Det test gate study 2.png 14 h 0 min 0 s 1070 2 / ADC3 Hrrl pos det calb det1 r2721.png
2722 Na22 1500 IAC NaI Det test gate study 2.png 9 h 40 min 0 s 1100 2 / ADC3 Hrrl pos det calb det1 r2722.png
2723 Na22 1500 IAC NaI Det test gate study 2.png h min s 1130 2 / ADC3 Hrrl pos det calb det1 r2723.png
2739 Co60 1500 IAC NaI Det test gate study 2.png 4 min 0 s 1130 2 / ADC3 Hrrl pos det calb det1 r2739.png
2724 Na22 1500 IAC NaI Det test gate study 2.png 20 min s 1190 2 / ADC3 Hrrl pos det calb det1 r2724.png
2740 Co60 1500 IAC NaI Det test gate study 2.png 5 min 0 s 1190 2 / ADC3 Hrrl pos det calb det1 r2740.png
2732 Na22 1500 IAC NaI Det test gate study 2.png 7 h 30 min 0 s 1230 2 / ADC3 Hrrl pos det calb det1 r2732.png
2741 Co60 1500 IAC NaI Det test gate study 2.png 3 min 1 s 1230 2 / ADC3 Hrrl pos det calb det1 r2741.png
2736 Na22 1500 IAC NaI Det test gate study 2.png 3 h 44 min 0 s 1240 2 / ADC3 Hrrl pos det calb det1 r2736.png
2737 Co60 1500 IAC NaI Det test gate study 2.png h 3 min 0 s 1240 2 / ADC3 Hrrl pos det calb det1 r2737.png
2725 Na22 1500 IAC NaI Det test gate study 2.png 11 h 20 min s 1250 2 / ADC3 Hrrl pos det calb det1 r2725.png
2726 Co60 1500 IAC NaI Det test gate study 2.png 5 min 0 s 1250 2 / ADC3 Hrrl pos det calb det1 r2726.png
2729 Na22 1500 IAC NaI Det test gate study 2.png 5 h 40 min 0 s 1260 2 / ADC3 Hrrl pos det calb det1 r2729.png
2730 Na22 1500 IAC NaI Det test gate study 2.png 14 min 1 s 1270 2 / ADC3 Hrrl pos det calb det1 r2730.png
2727 Na22 1500 IAC NaI Det test gate study 2.png 2 h 50 min 1 s 1280 2 / ADC3 Hrrl pos det calb det1 r2727.png
2731 Na22 1500 IAC NaI Det test gate study 2.png 42 min 0 s 1290 2 / ADC3 Hrrl pos det calb det1 r2731.png
2728 Na22 1500 IAC NaI Det test gate study 2.png 32 min 0 s 1300 2 / ADC3 Hrrl pos det calb det1 r2728.png
2733 Na22 1500 IAC NaI Det test gate study 2.png 1 h 50 min 0 s 1310 2 / ADC3 Hrrl pos det calb det1 r2733.png
2734 Na22 1500 IAC NaI Det test gate study 2.png 1 h 1 min 59 s 1320 2 / ADC3 Hrrl pos det calb det1 r2734.png
2735 Na22 1500 IAC NaI Det test gate study 2.png 42 min 0 s 1340 2 / ADC3 Hrrl pos det calb det1 r2735.png
2738 Co60 1500 IAC NaI Det test gate study 2.png 6 min 0 s 1340 2 / ADC3 Hrrl pos det calb det1 r2738.png
2742 Cosmic 1500 IAC NaI Det test gate study 2.png 23 min 4 s 1340 2 / ADC3 200 px
274 1500 IAC NaI Det test gate study 2.png min s 2 / ADC3 200 px
274 1500 IAC NaI Det test gate study 2.png min s 2 / ADC3 200 px
274 1500 IAC NaI Det test gate study 2.png min s 2 / ADC3 200 px
274 1500 IAC NaI Det test gate study 2.png min s 2 / ADC3 200 px
274 1500 IAC NaI Det test gate study 2.png min s 2 / ADC3 200 px
274 1500 IAC NaI Det test gate study 2.png min s 2 / ADC3 200 px
274 1500 IAC NaI Det test gate study 2.png min s 2 / ADC3 200 px

Pedestal Subtraction

We need to pedestal subtraction. Here are the commands to plot in root with event number. 

root [4] ntuple->Draw("ADC3:EventNumber");
root [6] ntuple->Draw("ADC3:EventNumber","ADC3<100");
root [8] ntuple->Draw("ADC3:EventNumber","EventNumber<1000");
root [9] ntuple->Draw("ADC3:EventNumber","EventNumber<1000 && ADC3< 500");
root [12] ntuple->Draw("ADC3","EventNumber<4000 && ADC3< 100");

To differentiate my pedestal with signal:

1. Run a while with my gate missing my signal (by delaying gate so that gate misses signal).

2. Pause the run, record event number when paused (Np). Record pause time.

3. Continue the run and finish it.

4. Plot the events in the root. First plot with events from 1st event to Np. Then plot the events after Np.

More tests

Pulse Shapes

Det3

Cosmics Na22 Co60
Hrrl pos iac det test Pulse Shape Det3 Cosm 1.png Hrrl pos iac det test Pulse Shape Det3 Na22 1.png Hrrl pos iac det test Pulse Shape Det3 Co60 1.png
Hrrl pos iac det test Pulse Shape Det3 Cosm 2.png Hrrl pos iac det test Pulse Shape Det3 Na22 2.png Hrrl pos iac det test Pulse Shape Det3 Co60 2.png
Hrrl pos iac det test Pulse Shape Det3 Cosm 3.png Hrrl pos iac det test Pulse Shape Det3 Na22 3.png Hrrl pos iac det test Pulse Shape Det3 Co60 3.png
Hrrl pos iac det test Pulse Shape Det3 Cosm 4.png Hrrl pos iac det test Pulse Shape Det3 Na22 4.png Hrrl pos iac det test Pulse Shape Det3 Co60 4.png
Hrrl pos iac det test Pulse Shape Det3 Cosm 5.png Hrrl pos iac det test Pulse Shape Det3 Na22 5.png Hrrl pos iac det test Pulse Shape Det3 Co60 5.png
Hrrl pos iac det test Pulse Shape Det3 Cosm 6.png Hrrl pos iac det test Pulse Shape Det3 Na22 6.png Hrrl pos iac det test Pulse Shape Det3 Co60 6.png

Put the Na22 and Co60 peaks together

Charge of single pulse of 511 peak

1) Confirm ADC charge calibration by using a battery. Integrate gate with around 50 ns.

2) Play with gate width and HV, see how the charge changes, as we as how the 511 keV peaks shifts.

3) Charge vs ADC_Channel number, should be linear. y intercept is noise.

4) HV vs Charge for 511 keV for each NaI detectors.


Confirming ADC Charge Calibration

Hrrl pos iac detector test adc v792 specificatios.png

Voltage of battery: V = 1.556 V


Changing Pulse widths

Charge changing as pulse width changes 

T F:You are just measuring noise if the signal size has a mean of less than 100 channels.

S S:Looks like the channel 16 is not good. I also changed the polarity. It worked. 
    But the change is not linear with the pulse width.

Hrrl pos iac detector test adc v792 charge test Pulse width check gate and trig.png

Run # Source Battery Voltage (V) Events (on CODA) Pulse Width (ns) ADC Channel (V792/root) Spectrum
2645 Hand Trigger with battery 1.556 218 about 50 Hrrl pos iac detector test adc v792 charge test Pulse width 1a.pngHrrl pos iac detector test adc v792 charge test Pulse width 1b.pngHrrl pos iac detector test adc v792 charge test Pulse width 1c.png 15 / ADC16 Hrrl pos det calb v792 test r2645.png
2646 Hand Trigger with battery 1.556 214 about 165 Hrrl pos iac detector test adc v792 charge test Pulse width 2a.pngHrrl pos iac detector test adc v792 charge test Pulse width 2b.pngHrrl pos iac detector test adc v792 charge test Pulse width 2c.png 15 / ADC16 Hrrl pos det calb v792 test r2646.png 
    Changed from channel 16 to channel 3. Polarity also changed.


Voltage: U = -1.556 V.

There is a resistor connected to the battery with resistance of R = 996 [math]\Omega[/math]

Impedance: R = 50 [math]\Omega[/math]

Current: [math] I = \frac{U}{R}=\frac{-1.556 V}{50+996 ~\Omega} = 0.03112~Amp[/math]

Charge: [math] Q = I \times \Delta t = 0.0014875717 \Delta t ~ C = 1.4875717 \times 10^{-3}\Delta t ~ C[/math]


Gain: 100fC/channel

If I have peak at 800th channel, then my charge 800*100 fC=800*0.1 pC = 800/1000 *0.1 nC.

If I have peak at Nth channel, then my charge N*100 fC= N*0.1 pC = N/10000 nC.


Run # Source Battery Voltage (V) Events (on CODA) Pulse Width (ns) Charge (nC) ADC Channel (V792/root) Spectrum Charge from ADC Reading (nC)
2652 Hand Trigger with battery -1.556 (Polarity Changed) 59 about 1000 Hrrl pos iac detector test adc v792 charge test Pulse width 1000ns.png 1.4875717 2 / ADC3 Hrrl pos det calb v792 test r2652.png Hrrl pos det calb v792 test r2652 zoom.png over flow
2653 Hand Trigger with battery -1.556 (Polarity Changed) 61 about 500 Hrrl pos iac detector test adc v792 charge test Pulse width 500ns.png 0.743785851 2 / ADC3 Hrrl pos det calb v792 test r2653.png Hrrl pos det calb v792 test r2653 zoom.png 0.387
2654 Hand Trigger with battery -1.556 (Polarity Changed) 62 about 75 Hrrl pos iac detector test adc v792 charge test Pulse width 75ns.png 0.111567878 2 / ADC3 Hrrl pos det calb v792 test r2654.png Hrrl pos det calb v792 test r2654 zoom.png 0.086
2655 Hand Trigger with battery -1.556 (Polarity Changed) 52 about 200 Hrrl pos iac detector test adc v792 charge test Pulse width 200ns.png 0.29751434 2 / ADC3 Hrrl pos det calb v792 test r2655.png Hrrl pos det calb v792 test r2655 zoom.png


2656 Hand Trigger with battery -1.556 (Polarity Changed) 56 about 300 Hrrl pos iac detector test adc v792 charge test Pulse width 300ns.png 2 / ADC3 Hrrl pos det calb v792 test r2656.png Hrrl pos det calb v792 test r2656 zoom.png
2657 Hand Trigger with battery -1.556 (Polarity Changed) 54 about 350 Hrrl pos iac detector test adc v792 charge test Pulse width 350ns.png 2 / ADC3 Hrrl pos det calb v792 test r2657.png Hrrl pos det calb v792 test r2657 zoom.png
2658 Hand Trigger with battery -1.556 (Polarity Changed) 63 about 300 Hrrl pos iac detector test adc v792 charge test Pulse width r2658.png 2 / ADC3 Hrrl pos det calb v792 test r2658.png Hrrl pos det calb v792 test r2658 zoom.png
2659 Hand Trigger with battery -1.556 (Polarity Changed) 63 about 250 Hrrl pos iac detector test adc v792 charge test Pulse width r2659.png 2 / ADC3 Hrrl pos det calb v792 test r2659.png Hrrl pos det calb v792 test r2659 zoom.png
2660 Hand Trigger with battery -1.556 (Polarity Changed) 60 about 200 Hrrl pos iac detector test adc v792 charge test Pulse width r2660.png 2 / ADC3 Hrrl pos det calb v792 test r2660.png Hrrl pos det calb v792 test r2660 zoom.png
2661 Hand Trigger with battery -1.556 (Polarity Changed) 57 about 150 Hrrl pos iac detector test adc v792 charge test Pulse width r2661.png 2 / ADC3 Hrrl pos det calb v792 test r2661.png Hrrl pos det calb v792 test r2661 zoom.png


2662 Hand Trigger with battery -1.556 (Polarity Changed) 62 about 100 Hrrl pos iac detector test adc v792 charge test Pulse width r2662.png 2 / ADC3 Hrrl pos det calb v792 test r2662.png Hrrl pos det calb v792 test r2662 zoom.png
2663 Hand Trigger with battery -1.556 (Polarity Changed) 56 about 50 Hrrl pos iac detector test adc v792 charge test Pulse width r2663.png 2 / ADC3 Hrrl pos det calb v792 test r2663.png Hrrl pos det calb v792 test r2663 zoom.png 


What are the definitions of the two Charge calcualtions?

Charge on time = Expected charge based on the voltage and time measured by the Oscilloscope.

Charge From Channels = #ADC channels/10000 


                       Charge on 
                       time            Time Window     Charge from
       Run #           Calculation     Width           Channel Counts  Channel 	Gain
                       Q (nC)		Delta T (nS)	Q (nC)		Number          (0.1 nC/Chan)		
       2654		0.11157		75		0.08600		860		0.00010
       2655		0.29751		200		0.21450		2145		0.00010
       2656		0.44627		300		0.31980		3198		0.00010
       2657		0.52065		350		0.37050		3705		0.00010
       2658		0.44627		300		0.32000		3200		0.00010
       2659		0.37189		250		0.26750		2675		0.00010
       2660		0.29751		200		0.21750		2175		0.00010
       2661		0.22314		150		0.16480		1648		0.00010
       2662		0.14876		100		0.11230		1123		0.00010
       2663		0.07438		50		0.06030		603		0.00010


IAC NaI Detectors Check charge vs time window.png


2nd Measuring of Volatage

Using Multimeter: 1.515 V

Using Scope: -72.4 mV

After battery

Hrrl pos detectors check v792ADC check bettery Voltage Measure before battery.png

Before battery

Hrrl pos detectors check v792ADC check bettery Voltage Measure after battery.png


Voltage: U = -72.4 mV

Impedance: R = 50 [math]\Omega[/math]

Current: [math] I = \frac{U}{R}=\frac{-72.4 mV}{50 ~\Omega} = 1.448 ~mAmp[/math]

Charge: [math] Q = I \times \Delta t = 1.448 \times 10^{-3}\Delta t ~ C[/math] 


Gate timing: The GATE signal must precede the analog input by >15 ns

                       Charge    
                       on time
                       Calculation    Charge on 
                       Exclude 15ns   time            Time Window     Charge from
       Run #           Rising Time    Calculation     Width           Channel Counts  Channel 	Gain
                       
                       Q (nC)		Q (nC)		Delta T (nS)		Q (nC)				
       2654		0.08688		0.10860		75		0.08600		860		0.00010
       2655		0.26788		0.28960		200		0.21450		2145		0.00010
       2656		0.41268		0.43440		300		0.31980		3198		0.00010
       2657		0.48508		0.50680		350		0.37050		3705		0.00010
       2658		0.41268		0.43440		300		0.32000		3200		0.00010
       2659		0.34028		0.36200		250		0.26750		2675		0.00010
       2660		0.26788		0.28960		200		0.21750		2175		0.00010
       2661		0.19548		0.21720		150		0.16480		1648		0.00010
       2662		0.12308		0.14480		100		0.11230		1123		0.00010
       2663		0.05068		0.07240		50		0.06030		603		0.00010


IAC NaI Detectors Check charge vs time window exclude rising time.png



Positrons

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