Revision as of 18:12, 10 April 2014

EC test for SoLID

Preparation

• DAQ

     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!
     To do: 
        An issue in boot script need to be fixed, Alex and I are working on it.
        Readout list(based on v792) should be modified to feed our needs, I am working on it

• 2D table: done!

     It can be operated interactively through serial connectors.

• MaPMT related issues:

     Yi is asking Carl for a H8500
     Cable to connect H8500 and V792, need to make new ones???
     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:

     Need a box which can host 2D motional table(rough size of table:50cm X 50cm X 50cm), build a new one???

• LED related issues:

     I have a LED controller on hand(from Alex), it is part of a integrated LED system, 
     where is the LED part, Alex?

Test plan in the early stage

• 1.Calibrate ADC channels

     Using a generator to produce a well-known amplitude signal to calibrate ADC
     A generator is needed

• 2.Gain VS Voltage scan (H8500: -700V <---> -1100V)

     Fast Measurement: 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
     Longer plan measurement: absolute gain calibration

• 3.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

• 4.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

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.