Document Type

Thesis

Degree

Master of Science (MS)

Department

Physics

First Advisor's Name

Pete Markowitz

First Advisor's Committee Title

Committee Chair

Second Advisor's Name

Joerg Reinhold

Third Advisor's Name

Laird Kramer

Keywords

Electronics, VDC, Vertical Drift Chamber, Summing Module

Date of Defense

11-14-2012

Abstract

Testing of summing electronics and VDC A/D Cards was performed to assure proper functioning and operation within defined parameters. In both the summing modules and the VDC A/D cards, testing for minimum threshold voltage for each channel and crosstalk between neighboring channels was performed. Additionally, the modules were installed in Hall A with input signals from shower detectors arranged to establish a trigger by summing signals together with the use of tested modules. Testing involved utilizing a pulser to mimic PMT signals, a discriminator, an attenuator, a scaler, a level translator, an oscilloscope, a high voltage power supply, and a special apparatus used to power and send signal to the A/D cards. After testing, modules were obtained that meet necessary criteria for use in the APEX experiment, and the A/D cards obtained were determined to have adequate specifications for their utilization, with specific results included in the appendix.

Identifier

FI12120702

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