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High Voltage Testing

High Voltage Testing. Requirements: Since straws operate at ~1500 V, all parts of the module from the HV feed to the straws must be tested Design is already validated, so this is for production testing / QC Duke responsible for test setups at IU, Hampton production sites

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High Voltage Testing

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  1. High Voltage Testing • Requirements: • Since straws operate at ~1500 V, all parts of the module from the HV feed to the straws must be tested • Design is already validated, so this is for production testing / QC • Duke responsible for test setups at IU, Hampton production sites • Several kinds of tests: • Check continuity of traces • Check for arcing, current draw when all straw groups at HV • Same for case of one straw group at HV and neighbors at ground

  2. Due to “burn in” and number of HV feeds per module, tests are time-consuming and labor-intensive: could be production bottleneck • Automation needed - goal is unattended operation

  3. One relay board (three per setup) with HV cable and connector for module HV Kapton feeds

  4. Gas tight box, without boards and connectors

  5. Present Status: • Hardware: • Prototype relay board operational • Proceeding with additional boards, gas-tight enclosure • Software: • Bridgeview package chosen for data collection and control

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