Friday, August 31, 2018, 12:27: Roughing.
Friday, August 31, 2018, 13:19: Turbo pumps started.
Wednesday, September 05, 2018, 11:03: RGA on.
***NOTE***
P (kW) = A*V
TGHT at 475/7.84V, temp at 1550 C (3.72 kW - Max operating target heating power)
Note: To condition the nanoSiC, it is better to keep TBHT at 0A and ramp up TGHT to 475A while monitoring the vacuum. Then step up TBHT; any increase in vacuum would indicate a local evaporation of nanoSiC close to the ionizer.
Settings as per John Wongs instructions and found in https://elog.triumf.ca/TIS/Evaporator_2/414
DO NOT EXCEED 400A
Thursday, September 06, 2018, 07:23: Waterlines opened. No response on RGA. Vacuum ok @ 5.5e-07T
Thursday, September 06, 2018, 07:25: Power/sources on.
Thursday, September 06, 2018, 07:30: Auto-ramping TGHT to 250 A @ 2A per min
Thursday, September 06, 2018, 07:38: BIAS / EZL / EE @ 30 / 13 / 1.5 kV.
Thursday, September 06, 2018, 07:39: IV4 opened.
| Device |
Temp
[C] |
Flow
[lpm] |
| HS + MSP |
25.6 |
3.85 |
| TBHT |
26.8 |
3.12 |
| COIL + EE |
25.4 |
4.99 |
| TGHT |
25.5 |
5.64 |
Thursday, September 06, 2018, 07:43: Optics set.
Thursday, September 06, 2018, 08:25: Vacuum @ 1.05e-06T. TGHT @ 105 A. Rate increments based on Vacuum. Minor out gassing.
Thursday, September 06, 2018, 08:51: Vacuum @ 9.13e-07T. TGHT @ 150 A. Rate increments back to 2A.
Thursday, September 06, 2018, 10:13: Vacuum @ 6.62e-07T. TGHT @ 250 A / 2.171 V.
Thursday, September 06, 2018, 11:11: Auto-ramping TGHT to 400 A @ 2A per min.
Thursday, September 06, 2018, 11:51: Vacuum @ 1.05e-06T. TGHT @ 315 A. Rate increments based on Vacuum. Minor out gassing.
Thursday, September 06, 2018, 13:44: Auto-ramping TGHT to 450 A @ 2A per min. Vacuum @ 1.05e-06T. TGHT @ 358 A. Rate increments based on Vacuum. Out gassing.
Thursday, September 06, 2018, 14:34: Auto-ramping TGHT to 400 A @ 2A per min. Vacuum @ 1.05e-06T. TGHT @ 383 A. Rate increments based on Vacuum. Out gassing.
Friday, September 07, 2018, 06:24: Auto-ramping TGHT to 450 A @ 2A per min. TGHT VOL @ 4.200 V
Friday, September 07, 2018, 06:50: TGHT @ 450 A. Vacuum @ 9.13e-07T. TGHT VOL @ 4.933 V
| Device |
Temp
[C] |
Flow
[lpm] |
| HS + MSP |
25.6 |
3.85 |
| TBHT |
26.8 |
3.12 |
| COIL + EE |
25.5 |
4.99 |
| TGHT |
27.0 |
5.64 |
Friday, September 07, 2018, 06:55: Auto-ramping TBHT to 150 A @ 2A per min.
Friday, September 07, 2018, 08:12: TBHT @ 150 A. Vacuum @ 9.57e-07T. TGHT VOL @ 1.470 V
Friday, September 07, 2018, 08:15: Auto-ramping TBHT to 230 A @ 2A per min.
Friday, September 07, 2018, 09:55: TBHT @ 230 A. Vacuum @ 9.97e-07T. TGHT VOL @ 1.520 V
Friday, September 07, 2018, 11:00: EZL to 13.5 kV
Friday, September 07, 2018, 15:12: Auto-cooling @ 2 A per min.
Monday, September 10, 2018, 08:15: RGA off.
Monday, September 10, 2018, 08:20:BIAS / EZL / EE @ 0. Sources off.
Monday, September 10, 2018, 08:23: IV4 closed / reset. Ion gauge off. Turbo pumps off. |