Solid calorimeter test stand

EC test for SoLID

Preparation

• DAQ: done!

     Hardware: Done! VME based: CPU(VxWorks) + TI + 2V792 + NIM modules ---> can handle 64 channels
     Software: CODA 2.6.2 is already installed, and configuration is done!
     Decoding is done!

• 2D table: done!

     It can be operated interactively through serial connectors.

• MaPMT related issues:

     Yi is asking Carl for a H8500
     H8500 ---> Socket: "SQT-118-01-L-D SAMTEC"; 2 rows, 18*2 pins, 16 pins for signal, 1 of no use, others are GND 
     V792 ---> Socket for "3431-5202 Header-type male connectors"; 17*2 pins, 16 pins for singal, 1 of no use, others are GND

• Black Box: done!

       Size: roughly 1m x 1m x 1m

• LED related issues: done!

     pulser and LED board on hand, I am working on it...
     LED system specs:
           3 pulsed LED and 1 continuous LED
           BLUE light, 470nm(2.637ev), 20mA current
           nominal luminous intensity: 232mcd (232*1e-3*4pi/62)*6.2415093433e+18/2.637 = 1.1e+17 photon/s

Test

• 1.Calibrate ADC channels

     Using a generator to produce a well known amplitude signal to calibrate ADC: ADC counts <-> Charge
     WaveTek model 80 from 3He lab

• 2.Gain VS Voltage scan (H8500: -200V <---> -1100V)

     Relative gain VS voltage curve:
        Sinle channel measurement is enough
        Setup: LED -> fiber -> Any single pixel -> Readout
        Or no fiber: LED -> Any single pixel -> Readout
     Absolute gain calibration:
        Yi has a photon calibration tube, I can use it to calibrate the absolute gain.

• 3.Determine a low gain range for SoLID preshower

     5E3

• 4.Uniformity measurement at low gain case

     No fiber is needed in this test, open cathode
     Challenge: A uniform distributed light should be produced -> need to figure out,Yi has experience on this
     Setup: Uniform light -> open cathode -> 64 channels readout -> uniformity

• 5.Cross talk measurement

     Size of a Pixel: 5.8mm X 5.8mm
     Setup: LED -> fiber -> pixel -> readout(surrounded pixels)
     As suggested by Yi, do a position dependent cross-talk study ---> scan fiber within a pixel to see the cross-talk effect

• 6.Test with Pre-shower tile

weekly meeting

• 2014-5-14 pdf

Notes

• V792 Specs

     Input range 0 ---> 400 pC : 0 -> 2.5E9 electrons
     Gain per ADC channel: 100fC/channel  : 6.25E5 electrons/channel
     If we set PMT Gain to 5E3
        single photon electron location: 0.008*(amplifier) channel
        MIP location(assume 40 p.e):  0.32*(amplifier) channel (16 amplification--> channel 5)

• H10966 Specs (Wouter's MaPMT)

     H10966_ZK0249_Specs.pdf

equipment list

• for MAPMT test
  • DAQ computer 1
  • VME crate 1
  • VME module of CPU 1, trigger 1, LED control with LED 1, ADC 1
  • NIM crate 1
  • NIM module, discriminator 1, Lin Fan-in/out 1, logic unit 1, translator 1, gate/delay 1
  • HV power supply 1
  • XY movement rack and controller 1
  • WLS fiber, some
  • MAPMT (H8500 or similar) 1
  • dark box 1
  • oscilloscope 1

UVa list

• now in Xiaochao's office
  • PS726 level translator, SN12263 (HallC), SN21372,SN20024
  • PS974 quad gate/delay generator, SN25806, SN25805
  • PS744 quad linear gate Fan-in/out, SN18944 (problem)
  • PS740 quad linear Fan-in/out, SN12818 (HallC),SN12456
  • PS710 Octal Discriminator, SN18893 (HallC)

• bought by Xiaochao, The serial numbers are from Ramesh's record.
  • 3x PS706 SN: 24509,24510, 24511.
  • 1x PS755 SN: 24508
  • 4x PS757 4 out of 9, 24472, 24473, 24506, 24507, 24455, 24456, 25618, 25807, 25808, record mixed UVa with JLab properties
  • 2 scalers, either SIS3820 or 3821. I don't have the SN#

• according to Albert

1. PS706 SN: 24510- we use L HRS.

2. PS706 SN: 24511- we use L HRS

3. PS755 SN: 24508- we use L HRS

4. PS757 SN: 25807- in cabinet.

About rest, I don't see in my list.