AIDA GELINA BRIKEN nToF CRIB ISOLDE CIRCE nTOFCapture DESPEC DTAS EDI_PSA 179Ta CARME StellarModelling DCF K40
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Message ID: 573     Entry time: Sat Apr 13 14:04:44 2024
Author: JB 
Subject: 13 April Noise checks 

15:04 bPlast was left powered over night. Powering up to check noise conditions - also to check shifting of Germanium baseline (no change observed).

          TEMP OK.

          Noise condition the same as yesterday when platform was moved in. Noise in aida01 and aida09 due to single channel failures (?). Attachments 1-3.

          9/16 <20kHz, max 176k

15:30 Changed drainwires ground from 4V (Ch3) -> 29.5V (Ch4) out on R&SMP4040 PSU. Attachments 4-5.

          No change in noise observed.

          9/16 <20kHz, max 187k

15:49 Connected PN 300 ground to R&SMP4040 4V (Ch3) output. Noise decreased in many channels aida09 does not have a noisy channel anymore (??). Attachments 6-7.

          10/16 <20kHz, max 158k.

 

Current bPlast grounding scheme in attachments 8-9.

 

Attachment 1: Screenshot_from_2024-04-13_15-21-34.png  130 kB  Uploaded Sat Apr 13 15:21:45 2024  | Hide | Hide all
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Attachment 9: 20240413_160214.jpg  2.565 MB  Uploaded Sat Apr 13 16:10:12 2024  | Hide | Hide all
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