May 25, 2017 - 200kV gun upgrade meeting

200kV Gun

• Task and Timeline Gantt chart => media:170421_CHG.pdf

325kV Gun .... WHAT ?!?!?

• media:170519_325kV_simulations.pdf => Did we talk about this last week?

Gun2 NEG Tube

• Final NEG tube design => media:NEGTUBE_MAY03.pdf

Ordered (6) 4.5" rotatable, 2-1/2" bore => (2) in hand, (4) on back order

Ordered 6" to 4-1/2" reducers =>

(3) FH sent to MMF => One will be read for NEG tube by next Friday 5/26, others week after

a) check/replace coil leads w/ 240C insulator as needed, some have old shrink wrap

b) hi pot each coil

c) measure each coil using HMIN/HMAX -2.5A/+2.5A

d) Bz v. z at r=0 ALL (and r=2,4,6 mm for ONE)

e) Bz v. I at r=0,z=0 ALL

• BPM process : Fabricate, Clean, Leak Test, Optical Align, Electrical Acceptance and/or Gabou Line, Install

Pete Francis performing optical/electrical acceptance testing...

M20 #1 (Musson tested) - > First M20 with no serial number optically looks bad and did not pass acceptance test.

M20 #2 (Musson tested) -> Second M20 with serial no. #PM20-127 looks ok...... but probably could use an Optical Alignment

M20 #3 (Greg Marble spare) -> Third M20 tested great

M20 #4 (Greg Marble spare) -> Fourth M20 test occurred during electrical interference, re-test on Monday

• What next?

Send to shop for modification (327755) => Request June 9

M20 Old Assembly Modification media:0990.pdf

M20 New Assembly Can media:0991.pdf

M20 New Assembly 6.00 x 4.500 reducer flangemedia:0.992.pdf

Leak check

Repeat optical/electrical acceptance

NEG coat

Gabou measurement

Install

Gun3 Removal and Diagnostics Chamber Installation

• May 8-12 => Remove and replace Gun3 ATLIS task

Rebake week of May 30th

Eliminating Gun Switch Software

• April 28 => Remove gun switch software ATLIS task

Software removed and interlocks tested ELOG entry

Yet to do a) remove VBV3I02 from special interlock and b) swap PLC for relays

Radmon update

Installed at CEBAF

Checked and ready

Summer 2017 SAD Update

media:SADCIS_v6.docx