ELOG - Beatnote noise lowered in low frequency region

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Thu Feb 13 16:35:32 2020, anchal, DailyProgress, BEAT, BN Detector was saturated. Reduced laser powers.

Fri Feb 14 10:59:13 2020, anchal, DailyProgress, BEAT, Beatnote noise lowered in low frequency region

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Mon Feb 17 16:08:23 2020, anchal, DailyProgress, BEAT, Beatnote noise lowered in low frequency region with ISS

CTN_Noise_Budget_Effect_ISS_ON.pdf

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Fri Feb 21 16:22:04 2020, anchal, DailyProgress, BEAT, Beatnote noise lowered in low frequency region with ISS

CTN_Noise_Budget_Effect_ISS_ON_New.pdf

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Tue Mar 3 10:02:12 2020, anchal, DailyProgress, BEAT, Lowest ever beatnote spectrum today!

CTN_Noise_Budget_March03-2020.pdf

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Thu Mar 12 11:06:35 2020, anchal, DailyProgress, BEAT, Lowest ever beatnote spectrum today!

CTN_Noise_Budget_March11-2020.pdf

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Wed Mar 18 12:51:22 2020, anchal, DailyProgress, BEAT, Super beatnote measurement analysis results

CTN_Beatnote_SuperMeasurement_March13-16.pdf

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Mon Apr 13 16:52:30 2020, anchal, DailyProgress, BEAT, Beatnote measurements back on track

CTN_Latest_BN_Spec.pdf

Message ID: 2535 Entry time: Fri Feb 14 10:59:13 2020 In reply to: 2532 Reply to this: 2540

Author:	anchal
Type:	DailyProgress
Category:	BEAT
Subject:	Beatnote noise lowered in low frequency region

With some of the changes done recently, the beatnote noise has lowered in the low-frequency region indicating reduction in scatter.

Latest BN Spectrum: CTN_Latest_BN_Spec.pdf

Daily BN Spectrum: CTN_Daily_BN_Spec.pdf

Relevant elog post:

CTN:2530 : Increased sampling rate to 125kSa/s; lowest noise in higher frequencies

CTN:2533 : blocked NF1811 with hex beam dump

CTN:2535 : BN Detector was saturated. Reduced laser powers.

CTN:2531 : Further iterated back and forth to optimized FSS Gains.