1. HE FEE Boards and testing
30th July 2016
Mandakini Patil

2. Aim and Work Plan
Aim to assemble 5 Calibration Units by integrating all parts as much possible and test the same while at cern upto 15th July
Given 9 tested SiPM Control Boards (barcodes for these ?) to Danila
30 More SiPM control boards coming next week
30 BV converter Boards tested and here at CERN and within specs
To setup a standalone Test stand for testing the SiPM Control Boards of next batch at CERN in B28 using Raspberry pi board
30th July 2016
Mandakini Patil

3. Status of the CU Assembly
3 Pulser boards for CU are fitted inside the Al box,2 more will be done
Scintillator black box with pigtails to be fitted next week
Thermal pads put for 4 CU plates,one more to be done
Missing screws and spacers to fix the dc dc modules to the pulser board ordered and being sent by Keti
LC/LC couplers for 50 CU and the 50 Patch chord fibers ordered (thanks to Tullio and Tina)
SMA connectors and the 400micron Quartz fibers (to be sent by Vasken)
One CU standalone test setup being sent to CERN by Keti from KSU
QIE board angle connector removed but solder pads
30th July 2016
Mandakini Patil

4. Testing of SiPM control Boards Plans at CERN
Needed a HDMI Monitor (thanks to Sasha’s Order for the same)
Also got the 9V PS,the keyboard and mouse for the setup
The HDMI Monitor that is hooked up to the Raspberry pi board
Have taken a production backplane board with LV module
Have a CCMEmulator, ngCCM Emulator with me (given by Joe )
Have the test board with loaded resistorsfor 48 channels
Registered the raspberry pi board to get a IP no. for ethernet connection for the same
The Pi Board gives the I2c commands needed to control the SiPM Control Boards Registers and also to control the LED pulse
30th July 2016
Mandakini Patil

5. GUI for the test setup
30th July 2016
Mandakini Patil

6. Conclusion
Gearing towards CU assembly and testing of 2nd batch of 30 SiPM control boards at CERN
Testing of at least 1 – 2 HE CU with the one QIE card and integration with backend hopefully to be done soon.
Next batch of 5 CU will be tested at TIFR in july last week and sent to CERN by 1st week of August
Need a uHTR card to setup a test stand at TIFR for production boards testing ?
30th July 2016
Mandakini Patil

7. SiPM Control Boards linearity plot
30th July 2016
Mandakini Patil

8. DAC values vs Measured BV
SIPM Board#10
DAC set Voltages Actual measured Voltage
10 V to (ch 1-48)
60V to (ch 1-48)
70V to (Ch1 -48)
SiPM Board#4
10V to (ch1-48)
60V to (ch1-48)
70 V to (ch1-48)
30th July 2016
Mandakini Patil

9. Conclusions and Plans Gearing towards the CU Assembly at CERN in B186
Setup a test stand to test the SiPM+BV Boards (2nd Batch arriving in first week of july)
Test the completed CU in B28
30th July 2016
Mandakini Patil

10. Extra Slides
30th July 2016
Mandakini Patil

11. TIFR Pulse Stand using backplane
30th July 2016
Mandakini Patil

12. TIFR Pulse Stand using backplane
30th July 2016
Mandakini Patil

13. TIFR Pulse Stand using backplane
30th July 2016
Mandakini Patil