2nCor Equipment

Detectors

PMTs

http://www.hamamatsu.com/resources/pdf/etd/R580_TPMH1100E.pdf

DAQ electronics

Signal Processing

Discriminator

CAEN N841

The pulse forming stage of the discriminator produces an output pulse whose width is adjustable in a range from 5 ns to 40 ns. Each channel can work both in Updating and Non-Updating mode according to on-board jumpers position. The discriminator thresholds are individually settable in a range from -1 mV to -255 mV (1 mV step), via an 8-bit DAC. The minimum detectable signal is -5 mV. The back panel houses VETO and TEST inputs, the OR output and the Current Sum output, which generates a current proportional to the input multiplicity, i. e. to the number of channels over threshold, at a rate of -1.0 mA per hit (-50 mV per hit into a 50 Ohm load) ±20%.

File:CAEN N841 Manual.pdf

NIM-ECL converter

Phillips Model 726

File:Phillip 726 Nim2ECL.pdf

TDC

Detector name convention

BLUT = Beam Left Upstream Top pmt

3/19/15

TDC channel Map (Thursday)

Detector	Angle	TDC channel	NIM-ECL channel	Patch Pannel #	ROOT vaiable
BLUT	135	TDC 16	in B ch 0	223A6	evt.TDC[16]
BLUB	135	TDC 17	in B ch 1	223A7	evt.TDC[17]
BRT	270	TDC 24	in A ch 0	223A14	evt.TDC[24]
BRB	270	TDC 25	in A ch 1	223A15	evt.TDC[25]
BLDT	45	TDC 26	in A ch 2	223A16	evt.TDC[26]
BLDB	45	TDC 27	in A ch 3	223A17	evt.TDC[27]
Trig Delay		TDC 30	in A ch 6		evt.TDC[30]
Photon flux monitor	90	TDC 29	in A ch 5	223A10	evt.TDC[29]

3/24/15

TDC channel Map 3/24/15

Detector	Angle	TDC channel	LED channel	NIM-ECL channel	Patch Pannel #	ROOT vaiable
1 top (BRT)	270	24	0	in A ch 0	223A5	evt.TDC[24]
1 bottom (BRB)	270	25	1	in A ch 1	223A6	evt.TDC[25]
2 top BLDT	45	16	2	in B ch 0	223A7	evt.TDC[16]
2 bottom BLDB	45	17	3	in B ch 1	223A8	evt.TDC[17]
3 top	60	26	4	in A ch 2	223A9	evt.TDC[26]
3 bottom	60	27	5	in A ch 3	223A10	evt.TDC[27]
4 top BLUT	135	18	6	in B ch 2	223A11	evt.TDC[18]
4 bottom BLUB	135	19	7	in B ch 3	223A12	evt.TDC[19]
5 upstream	135	20	10	in B ch 4	223A15	evt.TDC[20]
5 downstream	135	21	11	in B ch 5	223A16	evt.TDC[21]
6 upstream	135	30	12	in A ch 6	223A17	evt.TDC[30]
6 downstream	135	31	13	in A ch 7	223A18	evt.TDC[31]
e+ spect		29	9	in A ch 5	223A14	evt.TDC[29]
Trig Delay		22	14	in B ch 6		evt.TDC[30]

TDC calibration

ADC

2nCor_44

Software

Ntuple maker

To make the Tree containing the TDC, QDC, and PDC data run the following command

source ~/CODA/setup

/home/daq/CODA/CODAreader/ROOT_V5.30/v775v792v785/evio2nt -fr8735.dat >/dev/null

rename the output file to a root file

mv r8735 r8735.root

root -l r8735.root

to draw a histogram for TDC channel 16

DAQ->Draw("evt.TDC[17]>>(4096,0,4096)");