Inserted a used (heating) LP-FEBIAD target with a basic heat shield assembly with no end plate foil on the window side to observe heating. The P2N Coil / TGHT connections were added.
Test whether the TS connections are affecting the P2N heating or if it's the P2N target itself.
-Heat the TGHT only, observe, then ramp down.
-Heat Coil only, observe, then ramp down.
-Heat TGHT w/ Coil, observe, then ramp down.
Note* Heating should be even across the target. Elog & take pictures.
NO HV ALLOWED!!!!
Thursday, August 08, 2019, 09:05: Roughing.
Thursday, August 08, 2019, 09:14: BV1A closed to allow pressure stabilization. Opened about within 2 seconds later with BV1B.
Thursday, August 08, 2019, 09:41: Turbo pumps on.
Thursday, August 08, 2019, 09:47: Ion gauge on.
Thursday, August 08, 2019, 10:37: RGA on.
TSG:CG1A & TSG:CG1B do not appear to be pumping down efficiently - May need to swap out TSG:RP1 after this test. Last done April 18, 2018. elog: 655.
Friday, August 09, 2019, 08:49: Power on.
Friday, August 09, 2019, 08:51: Waterlines opened. No response on RGA. Vacuum ok @ 3.03e-06T
Friday, August 09, 2019, 08:56: Auto-ramping TGHT @ 4 @ per min to 150 A.
Friday, August 09, 2019, 10:10: Ramping the TGHT down from 150 A to 0A.
Friday, August 09, 2019, 10:39: Anode Current @ 200 mA w/ 19V? Anode PS on. Voltage & current dropped off.
Friday, August 09, 2019, 11:18: TGHT and TBHT power supplies ramped to 150A each, total of 300A in the target
Friday, August 09, 2019, 13:12: Target glows symmetrically. TGHT and TBHT ramped from 150A to 200A each for a total of 400A on the target
Friday, August 09, 2019, 14:05: RGA error.
Friday, August 09, 2019, 14:08: RGA Restarted.
Friday, August 09, 2019, 14:08: Target heating evenly on total 400 A.
Friday, August 09, 2019, 15:57: Auto-ramping TGHT/TBHT @ 4 @ per min to 250/250 A.
Friday, August 09, 2019, 16:28: Vacuum limit reach at 241 and 238 A for TGHT and TBHT, respectively.
Friday, August 09, 2019, 16:28: Auto-cooling started at 4A/min
Monday, August 12, 2019, 09:22: Sources off. RGA off.
Monday, August 12, 2019, 10:04: Power off. Ion gauge off. Turbos off. |