Replace 9-pin back to normal grounded setup. Re-salt Ta#62. (Cu Gaskets in-use on FS#5)
Monday, June 21, 2021, 11:30: Roughing chamber.
Monday, June 21, 2021, 11:50: Removed backing window. Roughing beam line side.
Monday, June 21, 2021, 12:01: Multimeters removed. Back HV rack re-grounded. TP6 & TP2 on.
Monday, June 21, 2021, 12:02: TP1B on.
Monday, June 21, 2021, 12:13: TP1A on.
Monday, June 21, 2021, 12:21: IG1 on.
Monday, June 21, 2021, 14:37: Vacuum @ 3.96e-06T. Open FS#5
Monday, June 21, 2021, 14:39: Vacuum @ 3.76e-06T.
Monday, June 21, 2021, 14:42: Power / Sources on.
Monday, June 21, 2021, 14:43; IV4 opened & Optics on
Tuesday, June 22, 2021, 07:40: Quick system check ok.
| Device |
Temp
[C] |
Flow
[lpm] |
| HS + MSP |
23.7 |
4.02 |
| TBHT |
24.2 |
3.18
|
| COIL + EE |
23.6 |
5.11 |
| TGHT |
23.8 |
5.64 |
Tuesday, June 22, 2021, 07:42: Auto-ramping TGHT / TBHT to 300 / 150 A @ 3 A per min.
Tuesday, June 22, 2021, 09:36: TGHT / TBHT @ 300 / 150 A. BIAS / EE / EZL @ 30 / -1.5 / 13 kV.
Tuesday, June 22, 2021, 09:38: Auto-ramping TGHT / TBHT to 580 / 230 A @ 2 A per min.
Tuesday, June 22, 2021, 09:46: External / cage sparks* Multiple.
Tuesday, June 22, 2021, 09:58: Turn down BIAS to 25 kV.
Tuesday, June 22, 2021, 12:45: BIAS to 30 kV.
Tuesday, June 22, 2021, 13:05: Odd. There was activity on FC0 right when the HV was turned on before the 580 ramp up. Now, no activity on FC0, or wire scans. Turning HV down / off.
Tuesday, June 22, 2021, 13:10: BIAS / EE / EZL @ 0 kV.
Tuesday, June 22, 2021, 13:41: Rear cage opened. Digital multi-meter was removed.
Tuesday, June 22, 2021, 13:48: BIAS / EE / EZL @ 30 / -1.5 / 13 kV.
Tuesday, June 22, 2021, 13:57: No beam. Auto-cooling @ 3 A per min.
Tuesday, June 22, 2021, 16:23: HV power off. Optics off. IV4 off. TGHT still cooling.
Wednesday, June 23, 2021, 04:31: IG1 & turbo pumps off.
Wednesday, June 23, 2021, 06:00: Venting. Power off. FS#5 purged. |