ELOG AIDA

AIDA GELINA BRIKEN nToF CRIB ISOLDE CIRCE nTOFCapture DESPEC DTAS EDI_PSA 179Ta CARME StellarModelling DCF K40

AIDA

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Entry time:	Fri Mar 28 20:47:53 2025
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<p> <table width="98%" align="center" cellspacing="1" style="border:1px solid #486090;"> <tbody> <tr> <td cellpadding="3px" style="background-color:#486090; font-weidht:bold; color:white;">Quote:</td></tr> <tr> <td cellpadding="10px" style="background-color:#FFFFB0;"><p>Kept largely the same settings at the entry https://elog.ph.ed.ac.uk/AIDA/4</p> <p style="margin-left: 40px;">Same ASIC settings</p> <p style="margin-left: 40px;">Emco used to provide HV</p> <p style="margin-left: 40px;">HV+ --> nnaida11 & nnaida12 (p+n strips, -ve pulser input)</p> <p style="margin-left: 40px;">HV- --> nnaida13 & nnaida14 (n+n strips, +ve pulser input)</p> <p style="margin-left: 40px;">Stat spectra look roughly the same as those included in the above entry.</p> <p style="margin-left: 40px;"> </p> <div>Now see large peak around ~32k, present in all spectra to some degree. Mostly larger than corresponding pulser peak.</div> <div> </div> <div> </div> <div>Power cycled several times, reloaded+checked ASIC settings etc., no change. Any ideas? Have I forgotten something?</div> <div> </div> <div>The ASIC events stats rate is also very high on nnaida11,12,14. 13 is high but not excessively.</div> <div> </div> <div>Pulser peak shows double peaking on all ASIC channels with individual widths of ~250ch and total width of ~500ch.</div> <div> </div> <div>Noise peak has width ~50ch. This has reduced somewhat (was ~100s ch) with my last power cycle, but clearly still not gone.</div> <div> </div> <div>I'll try again in the morning, but if no change will proceed with the shaping time tests with the spectra as they are.</div> <div> </div> <div> </div></td> </tr> </tbody> </table> </p><p> </p> Encoding: HTML ELCode plain Suppress Email notification

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