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Entry  Mon Jul 26 01:30:42 2021, Koji, Summary, Cryo vacuum chamber, Prep for the 2nd cooling of the suspension 
    Reply  Mon Jul 26 22:49:00 2021, Koji, Summary, Cryo vacuum chamber, Aquadag painting 10x
       Reply  Wed Jul 28 00:59:47 2021, Koji, Summary, Cryo vacuum chamber, The test mass successfully suspended P_20210727_154143.jpegP_20210727_190356.jpegP_20210727_190426.jpegP_20210727_190543.jpeg
          Reply  Thu Jul 29 00:42:38 2021, Koji, Summary, Cryo vacuum chamber, The test mass successfully suspended 
             Reply  Thu Jul 29 13:11:17 2021, Koji, Summary, Cryo vacuum chamber, Cooling progress: Update temp_log_cool_down_20210728_1830.pdfcooling_model1.pdfcooling_model2.pdfOSEM_cooling.pdf
                Reply  Fri Jul 30 12:22:56 2021, Koji, Summary, Cryo vacuum chamber, Cooling curve comparisons comparison_cold_head.pdfcomparison_inner_shield.pdfcomparison_test_mass.pdf
                   Reply  Sun Aug 1 22:22:00 2021, Koji, Summary, Cryo vacuum chamber, Cooling update temp_log_cool_down_20210728_1830.pdfcooling_meas.pdfOSEM_cooling.pdfcooldown_210728.zip
                      Reply  Mon Aug 2 13:25:32 2021, Stephen, DailyProgress, Cryo vacuum chamber, Warmup started 02 August 
                         Reply  Tue Aug 3 23:56:00 2021, Koji, DailyProgress, Cryo vacuum chamber, Warmup started 02 August P_20210804_000247.jpgP_20210803_235421.jpg
Message ID: 2630     Entry time: Mon Aug 2 13:25:32 2021     In reply to: 2629     Reply to this: 2633
Author: Stephen 
Type: DailyProgress 
Category: Cryo vacuum chamber 
Subject: Warmup started 02 August 

With Test Mass RTD at 119K, and with all of Koji's trials completed, I started the warmup this afternoon.

 - Cryocooler off at 12:41

 - Heater on at 13:05 (forgot to complete this task durming my initial visit).

Anticipated warmup duration of ~ 1 day, as improvements to cooldown (higher emissivity test mass, better conduction to inner shield) should also improve the efficiency of our active warming, which took a bit more than 30 hours last time (ref QIL/2615).

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