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Message ID: 89     Entry time: Monday, February 22, 2016, 16:09
Author: Keith C Ng 
Category: Primary Beamlines 
Type: Development 
Subject: 4V CM1 blanking 

 

Rolled indium into new blanking plate turned down to 5.550". Dry fit with no indium ok. Assembled hook eyes from the previous blank off plate (removed from the slits box?). Used the same 20.5 mm spring compression (1.5 turns of the nut from finger tight). Hooks did not move 100% completely freely, but seemed ok.

 

20160222_beamline4v_P1030502.JPG

 

Blanked off CM1: Reused CM1 pin drive (was written on the pin drive) Pin drive was 500 uSv/h on contact. Working at beam plane level seemed to have lower dose rate. Drove down to 1/8" just before shoulder on taper. Intended to use WD-40 but can was empty. Vacuum leak check will have to wait until a later date.

 

20160222_beamline4v_P1030505.JPG 20160222_beamline4v_P1030511.JPG

 

2016 02 23: Attached scanned inspection report of as installed blanking plate.

Attachment 4: 20160223_4VCM1_blank_off_inspection_report.pdf  86 kB  Uploaded Wednesday, February 24, 2016, 11:03  | Hide | Hide all
20160223_4VCM1_blank_off_inspection_report.pdf
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