IAC NaI Detectors

General info on IAC NaI detector

[[1]]

Crystal size

NaI crystal sizes: 3”x3”

PMT base configureation

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
2180	Cosmic	18 min 37 s	661	26	0.8
2182	Cosmic	19 min 21 s	690	26	0.8
2183	Cosmic + Na22	22 min 44 s	690	26	0.8
2192	Cosmic + Na22	51 s	995	24	2
2193	Cosmic	18 h 3 min 12 s	995	24	2
2194	Cosmic + Co60	35	995	24	2
2196	Cosmic + Co60	8 min 55 s	900	24	2
2197	Cosmic + Na22	6 min 35	900	24	2
2199	Cosmic + Co60	1 h 1 min 52 s	800	24	2
2200	Cosmic + Na22	45 min 23 s	800	24	2
2201	Cosmic + Na22	2 min 55 s	800	4	2
2202	Cosmic + Na22	1 min 45 s	900	4	2
2204	Cosmic + Na22	6 min 47 s	700	0	2
2205	Cosmic + Na22	3 min 9 s	1000	30	2
2206	Cosmic + Co60	min s	1000	30	2
2208	Cosmic + Co60	1 min 27 s	1050	20	2
2209	Cosmic + Na22	115 s	1050	20	2
2210	Cosmic + Na22	77 s	1050	10	2
2211	Cosmic + Co60	153 s	1050	10	2
2212	Cosmic + Co60	34 s	1050	0	2
2213	Cosmic + Na22	119 s	1050	0	2
2214	Cosmic	22 h 15 min 49 s	1050	0	2
2215	Co60	s	1075	10	2

Detector and Parts

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

With Mu material:

HV = 700 V

IAC_NAI_2

With Mu material

HV = 700 V

Tests with 50 Ohm Scope Resistance

IAC NAI_1 with Base #1

Detector # 1 with Base #1:

IAC NAI_2 with Base #2

Detector # 2 with Base #2:

IAC NAI_3 with Base #3

Detector # 3 with Base #3:

Positrons