40m QIL Cryo_Lab CTN SUS_Lab TCS_Lab OMC_Lab CRIME_Lab FEA ENG_Labs OptContFac Mariner WBEEShop
  PSL  Not logged in ELOG logo
Entry  Fri Sep 22 18:38:15 2017, awade, DailyProgress, Vacuum, Baking bake chamber 2017-09-22_18.16.42.jpg
    Reply  Thu Sep 28 21:15:12 2017, awade, DailyProgress, Vacuum, Cleaning refcav Au coated heat shields 13x
       Reply  Fri Sep 29 20:06:21 2017, awade, DailyProgress, Vacuum, Cleaning refcav Au coated heat shields 2017-09-29_19.36.57.jpg2017-09-29_19.33.34.jpg
          Reply  Sat Sep 30 17:09:03 2017, awade, DailyProgress, Vacuum, Cleaning refcav Au coated heat shields 
Message ID: 1935     Entry time: Fri Sep 29 20:06:21 2017     In reply to: 1934     Reply to this: 1937
Author: awade 
Type: DailyProgress 
Category: Vacuum 
Subject: Cleaning refcav Au coated heat shields 

Parts are now cleaned and ready to bake.  I've put them in a UHV foil lined box with a TX1010 wipe in the bottom to stop scratching. Its a very small vacuum can so I'm baking the two tubes first and will do the end caps and misc parts in the next cycle.  I started a bake cycle at 7:45 pm for just the shields and will let it go for a few hours at 100 C.

This time I wrapped the vacuum can initially in copper foil, then the heater strap followed by a generous amount of food grade aluminum foil.  Its heating up much faster in this configuration.  I wasn't sure how the cloth wipes would fair under baking so the shields were very gently placed directly on an aluminum lining inside the can.  

Pictures attached. 

Attachment 1: 2017-09-29_19.36.57.jpg  1.642 MB  | Hide | Hide all
2017-09-29_19.36.57.jpg
Attachment 2: 2017-09-29_19.33.34.jpg  2.274 MB  | Hide | Hide all
2017-09-29_19.33.34.jpg
ELOG V3.1.3-