SciGlass prototype 2022

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People

• CUA: Tanja Horn (superviser), Yeranuhi Ghandilyan, Joshua Crafts, VSL Team
• JLab: Vladimir Berdnikov, Sasha Somov
• AANL: Hakob Voskanyan, Arthur Mkrtchyan, Hamlet Mkrtchyan, Vardan Tadevosyan, ...
• INFN: Marco Battaglieri, ...

Physical characteristics of the glass

Dimensions

• 2022 Generation SciGlass 40cm: Dimensions of 9 blocks produced in summer 2022 (CUA-1....CUA-9

Transmission

• 2022 Generation SciGlass 40cm: Comparison of 9 blocks produced in summer 2022

Engineering part and design of the 3x3 prototype (40xm SciGlass 2022)

Hardware

- Filament to print the box for 5x5 (PLA, 1.75mm)

Read out - For the test we will need 25 cables (+3,4 spare) - For the 5x5 prototype we will need to make 25 HV dividers - LEMO bulkhead connectors - HV connectors - HV divider circuit boards + sockets - Cables for dividers - Label Machine - Black RTV silicone - Black type (4.00", 101.60 mm)

Detailed List of Activities

Date?? - Visual inspection of the SciGlass "(Josh)"

09/16/2022 - Transmittance measurement (Josh, Yeran)

09/29/2022 - Dimensions measurement (Josh, Yeran)

09/29/2022 - Beam test with 12x1 array in the Hall, (Vlad, Arshak)

10/06/2022 - 12x1 array removing from the hall (Yeran, Arshak)

10/11/2022 - 3x3 prototype cosmic test in clean room, (Yeran, Arshak)

10/13/2022 - 3x3 prototype box assembling (Josh, Yeran)

10/14/2022 - 3x3 prototype installation in the hall and alignment (Yeran, Vlad, Arshak, Sasha)

10/18/2022 - 3x3 prototype re-alignment (5mm), (Yeran, Arshak, Sasha)

10/19/2022 - 3x3 prototype re-re-alignment (5+3mm), (Vlad, Arshak)

10/27/2022 - 3x3 prototype HV base replacement "(Yeran, Arthur, Arshak)" https://userweb.jlab.org/~yeran/SciGlass/3x3-HV.pdf

10/28/2022 - 3x3 prototype central channel's (#5) HV divider/base replacement "(Yeran, Arshak)" https://userweb.jlab.org/~yeran/SciGlass/3x3-HV-updated.pdf

Future Plans

Most probably on Thursday (October 27 2022) will be an access to the Hall-D. We are planning to change the HV dividers (to those with no pre-amplifier) and increase HV (from 1000 V to 1100 V) on the 3x3 prototype in order to improve the photodetection efficiency. Everything is ready to go to the Hall. Since there is no paper-based instruction for all this procedure, I'll try to make one for the future tests. https://userweb.jlab.org/~yeran/SciGlass/Towers+5mm+3mm.pdf