1. BGV PIN Diodes & Trigger Updates
Andreas Alexopoulos
BGV Meeting #94
16 / 11 / 2016

2. Andreas Alexopoulos - BGV Meeting #94
Trigger (1)
5 V/div
1300 V
Before TS3
16/11/2016
Andreas Alexopoulos - BGV Meeting #94

3. Andreas Alexopoulos - BGV Meeting #94
Trigger (2)
1300 V
After TS3 – Timing & Amplitude changes (although different beams – to be seen)
16/11/2016
Andreas Alexopoulos - BGV Meeting #94

4. Andreas Alexopoulos - BGV Meeting #94
Trigger (3)
Amplitudes – Before TS3
1300V
16/11/2016
Andreas Alexopoulos - BGV Meeting #94

5. Andreas Alexopoulos - BGV Meeting #94
Trigger (4)
Amplitudes – After TS3
1300V
16/11/2016
Andreas Alexopoulos - BGV Meeting #94

6. Andreas Alexopoulos - BGV Meeting #94
Trigger (5)
Amplitudes
0.5 V/div
1300 V
1 V/div
1500 V
5 V/div
1800 V
16/11/2016
Andreas Alexopoulos - BGV Meeting #94

7. Andreas Alexopoulos - BGV Meeting #94
Trigger (6)
Amplitudes – After TS3
1500V
16/11/2016
Andreas Alexopoulos - BGV Meeting #94

8. Andreas Alexopoulos - BGV Meeting #94
Trigger (7)
Amplitudes – After TS3
1800V
16/11/2016
Andreas Alexopoulos - BGV Meeting #94

9. Andreas Alexopoulos - BGV Meeting #94
PIN Diodes
Equipment used:
Keithley 2410
Keithley 7001, 7076 mux
GPIB-USB-HS cable
Software on bgvgw
linux-gpib libraries installed
Python installation
Under ~/tools, v2.7, with Gpib module
Must be used for the read-out script
Script for read out bgv_diodes.py
Also under ~/tools
16/11/2016
Andreas Alexopoulos - BGV Meeting #94

10. Andreas Alexopoulos - BGV Meeting #94
PIN Diodes
Sample console output
Usage and help:
~/tools/python/python27/bin/python2.7 ~/tools/bgv_diodes.py –help
Automatic run: ~/bgv_diodes.sh
CSV output – measurement blocks
Datetime, Diode ID, Temp, X, X
Voltage, Current, Resistance, Timestamp, Status (x4)
16/11/2016
Andreas Alexopoulos - BGV Meeting #94

11. Andreas Alexopoulos - BGV Meeting #94
PIN Diodes
16/11/2016
Andreas Alexopoulos - BGV Meeting #94

12. Andreas Alexopoulos - BGV Meeting #94
DAQ Attempt today
Gas
bgvctrl
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Andreas Alexopoulos - BGV Meeting #94

14. Andreas Alexopoulos - BGV Meeting #94
Trigger (+)
Amplitudes – Before TS3 (range (-5,0))
16/11/2016
Andreas Alexopoulos - BGV Meeting #94