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AR2FL/S and No/Lo Gain followup

AR2FL/S and No/Lo Gain followup. Campion Anton Mitch. Chip 2 Ch 14 AR2FL. Problem on module was reproduced July 21. Not Present mounted on Module with a 10pF loaded PIB replacing straw Reduced in magnitude on module with improved RF finger connection.

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AR2FL/S and No/Lo Gain followup

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  1. AR2FL/S and No/Lo Gain followup Campion Anton Mitch

  2. Chip 2 Ch 14 AR2FL • Problem on module was reproduced July 21. • Not Present mounted on Module with a 10pF loaded PIB replacing straw • Reduced in magnitude on module with improved RF finger connection.

  3. No Gain ChannelsExternal pulser investigation • One of several low gain channels responding to an external test pulse input. • The pulse amplitude is chosen to cause the same response as a 50mV step in a normal channel.

  4. Internal Pulser Demonstrating No/Lo Gain Channels Algen ‘A’ wheel Board #124180

  5. Lo/No Gain Statistics(All Boards) * Confirmed with external pulser Full spreadsheet on tested boards at www.hep.upenn.edu/atlas  On Detector boards  End Cap wheel boards  End_Cap_debugging

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