Friday, April 26, 2019, 13:43: Roughing.
Friday, April 26, 2019, 14:12: Turbo pumps on.
Friday, April 26, 2019, 14:58: RGA on.
Monday, May 06, 2019, 07:05: RGA restarted.
Monday, May 06, 2019, 07:10: Waterlines opened. Vacuum ok @ 5.13e-07T. No response on the RGA.
Monday, May 06, 2019, 07:16: Power / sources on.
Monday, May 06, 2019, 07:20: Optics set.
Monday, May 06, 2019, 07:23: Auto-ramping TGHT / TBHT to 575 / 200 A @ 2A per min.
Monday, May 06, 2019, 07:28: IV4 opened. Initial attempt to open IV4 unsuccessful - Timed out. Reset.
Monday, May 06, 2019, 07:39: BIAS / EE / EZL @ 30 / -1.5 / 13 kV.
Monday, May 06, 2019, 07:57: Reset DaqPro. Ref data sheet.
| Device |
Temp
[C] |
Flow
[lpm] |
| HS + MSP |
25.8 |
5.52 |
| TBHT |
25.7 |
7.93
|
| COIL + EE |
25.6 |
1.92 |
| TGHT |
25.70 |
6.29 |
Monday, May 06, 2019, 09:07: TBHT at 200A ok. Halt auto ramp. Set TBHT. Cont'd auto-ramping TGHT / TBHT to 575 / 230 A @ 2A per min.
Monday, May 06, 2019, 09:47: RGA restarted. Updates?
RGA timed out around 10:30.
Monday, May 06, 2019, 11:00: RGA error. Initial communications errors, would not connect. Restarted the computer and allowed updates to take effect. EM7 error displayed.
Monday, May 06, 2019, 11:27: RGA restarted.
Monday, May 06, 2019, 13:10: EZL to 14.3 kV
Monday, May 06, 2019, 14:48 :
| Device |
Temp
[C] |
Flow
[lpm] |
| HS + MSP |
27.4 |
7.78 |
| TBHT |
27.0 |
10.30
|
| COIL + EE |
26.8 |
3.01 |
| TGHT |
27.1 |
7.09 |
Tuesday, May 07, 2019, 07:26: Noticed a discrepancy on the mass scan. The mass peaks appear to have moved further along the mass / q. They are identical to what we used to see on previous scans, just further down the line. A calibration / scaling may be appropriate.
| Element |
Mass |
Mass/q |
Beam Current |
| Lithium |
6.941 |
7.508 |
1.04401e-10 |
| Sodium |
22.9897 |
27.556 |
9.85687e-10 |
| Mass 27 (Al) |
26.9815 |
32.2943 |
2.97834e-08 |
| Potassium |
39.0983 |
46.3293 |
7.49146e-10 |
| |
(peak 2) |
47.6191 |
1.568e-10 |
| Rubidium |
85.4678 |
100.355 |
2.79327e-10 |
| |
(peak 2) |
102.904 |
1.04431e-10 |
| Cesium |
132.9055 |
156.6 |
8.6103e-10 |
| |
(peak 2) |
162.532 |
2.4408e-10 |
The discrepancy appears to get larger the further we move along the masses.
Tuesday, May 07, 2019, 07:39: Auto-cooling @ 2 A per min to TGHT / TBHT @ 350 / 0 A. Check around 9:20am.
Tuesday, May 07, 2019, 09:30: Auto-cooled to TGHT / TBHT @ 350 / 0 A.
Tuesday, May 07, 2019, 11:06: Auto-cooling @ 2A per min.
Tuesday, May 07, 2019, 11:09: Auto-cooling @ 4A per min.
Tuesday, May 07, 2019, 12:51: Power / sources off. IV4 closed / reset. RGA off.
Tuesday, May 07, 2019, 12:54: Turbo pumps off.
Tuesday, May 07, 2019, 14:00: Venting. |