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Investigation of HEC Signals in Amplifier PAD Board with Dried Hexcel Mat Post-Microwave Treatment

This study examines the behavior of strange signals detected in an amplifier PAD board setup utilizing a Hexcel mat, which was dried in a microwave oven for 30 minutes before installation. Upon first pulse detection after drying, further analysis was conducted over several runs (164-166). Observations include the emergence of signals hours after initial activation and frequency variations determined over time under different conditions. The data highlights the impact of drying and environmental conditions on signal amplitude and frequency, providing insights into HEC signal behavior.

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Investigation of HEC Signals in Amplifier PAD Board with Dried Hexcel Mat Post-Microwave Treatment

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  1. Amplifier PAD board +HV Hexcel Metal support Hexcel mat study after drying in microwave Setup of run 164-165, before installation the hexcel mat was dried in microwave oven during 30 minutes HEC strange signals

  2. Signals (Run 164-165) HEC strange signals

  3. Signal amplitude distribution (Run 164-165) HEC strange signals

  4. Frequency (Run 164-165) No data HEC strange signals

  5. Conclusion : • After drying of hexcel mat in microwave oven first pulse appeared in 10 minutes, second – in a hour. • A rise of frequency was observed during few hours. HEC strange signals

  6. Run 166 • Run 166 has been taken after 4 days keeping in normal condition (hexcel mat should be already wet) • Signals appeared immediately after HV=on HEC strange signals

  7. Signals (Run 166) HEC strange signals

  8. Frequency (Run 164-166) No data Run 166 Run 165 Run 164 HEC strange signals

  9. Amplitude distribution (Run 164-166) HEC strange signals

  10. Charge distribution (Run 164,166) HEC strange signals

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