Ray D. installed the "standard" 6V 200A FEBIAD COIL P/S on Friday morning.It has not yet been tested as water supply was on.

Monday, July 09, 2018, 10:43: Rouging.

Monday, July 09, 2018, 13:14: Turbo pumps on.

Tuesday, July 10, 2018, 07:45: Waterlines opened. Vacuum ok @ 6.93e-07T. No response on RGA.

Tuesday, July 10, 2018, 08:05: Opened gas lines TSH:SV3 & TSH:SV4. Vacuum spiked to 1.08e-06T. Response registered on RGA. Closed valves.

Tuesday, July 10, 2018, 08:22: Vacuum Holding at 1.08e-06T.

Tuesday, July 10, 2018, 08:24: Close valve to small gas line pump. Pump is running.

Tuesday, July 10, 2018, 09:02: Path to TSH:SV1 through SV2 & SV5 ok. Vacuum @ 5.55e-07T. Close and begin SV3 & SV4 purging.

Tuesday, July 10, 2018, 09:12: All gas lines opened.

Tuesday, July 10, 2018, 09:16: Power/sources on. Vacuum @ 7.26e-07T.

Tuesday, July 10, 2018, 09:18: Auto ramping TGHT / TBHT to 580 / 270 A @ 2A per min.

Tuesday, July 10, 2018, 09:20: IV4 opened. Optics on (already set).

Tuesday, July 10, 2018, 14:11: Abort auto-ramping. Increase TBHT ramping to 300A. Continue auto ramping TGHT / TBHT to 580 / 270 A @ 2A per min.

Tuesday, July 10, 2018, 13:56: BIAS/EZL/EE @ 30/13/1.5 kV. Anode set to 200 V

Tuesday, July 10, 2018, 14:12: Auto ramping complete.

 Tuesday, July 10, 2018, 14:17: TBHT set to 300 A. Read back reads 312 A

Wednesday, July 11, 2018, 06:52: Coil to 10A.

Wednesday, July 11, 2018, 07:00: Coil to 20A.

Wednesday, July 11, 2018, 07:05: Coil to 30A.

Wednesday, July 11, 2018, 07:10: Coil to 40A.

Wednesday, July 11, 2018, 07:20: Coil to 50A.

Fernando Maldonado

Wednesday, July 11, 2018, 09:59 Anode current=4.884 mA, Anode Voltage=200V. FC0=1.59e-9 . Source seems to be too cold. ramping up TBHT to 320 A (for a 330A readback). Vaccum=9.06e-7

 Wednesday, July 11, 2018, 10:18 Ramp up compleete TBHT=320A Read Back=33.8A. Anode current=9.768mA. Anode voltage=200V. FC0=1.77e-8A. Vaccum=9.13e-7

Wednesday, July 11, 2018, 11:52 Mass scan performed for nominal values

Lunch

Steering

Adjusting Emittance parameter for more precise scan

Wednesday, July 11, 2018, 15:37 Cathode is still "cold" , at 325A and 250V the anode current is 15 mA. The way to obtained more current and to have better emittances readings is to increase the tbht current

Wednesday, July 11, 2018, 15:39 TBHT=325, TBHT RB =339.1A, TBHT PS=330A. Increasing TBHT to 335A. Where TBHT RB is the read back value. TBHT PS is the value display on the Power Supply

Wednesday, July 11, 2018, 15:46 tbht=335, tbht rb=349.7, tbht ps=341. With this the anode current is 24.42 at anode voltage=250V. *THIS WILL BE THE MAXIMUM VALUE"

Wednesday, July 11, 2018, 17:15 Mass Scan measurement seem to not vary with anode voltage

Wednesday, July 11, 2018, 17:45 Coil to 60 A to let out gass a bit more overnight. Vacuum ok at 9.6e-7

Thursday, July 12, 2018, 07:25: Power outage. (07/11/2018 @ 21:53 approx) The test stand was completely knocked out. Power & pumps were all shut down.

Thursday, July 12, 2018, 07:31: Power supplies turned off and all settings manually re-zeroed.

 *** REVIEW Elog entry #673 Power outage & restart ***

Thursday, July 12, 2018, 10:10: Opened IV4

Thursday, July 12, 2018, 10:20: Attempt auto-ramp cancelled. Max increment values reached. Wait on Vacuum.

Thursday, July 12, 2018, 13:10: Auto-ramping TGHT / TBHT to 500 / 200 A @ 2A per min.

Thursday, July 12, 2018, 13:16: BIAS/EZL/EE @ 30/13/1.5 kV. 

Thursday, July 12, 2018, 13:19: Anode set to 200 V

Thursday, July 12, 2018, 13:23: Gas lines SV1, SV3, SV4 opened without issue.

Friday, July 13, 2018, 07:02: Auto-ramping TGHT / TBHT to 580 / 300 A @ 2A per min.

FM:

Friday, July 13, 2018, 09:26 Ramping up to TBHT=335A to get at least 20 mA on the anode current.

Friday, July 13, 2018, 09:52 Ramp up finished: TBHT=335A, TBHT RB=349.6A, TBHT PS=341A. Anode current=20.757mA@200V. Vaccum ok@8.86e-7Torr

Friday, July 13, 2018, 09:56 Closing Neon valve in order to only deliver Argon.

Friday, July 13, 2018, 13:32   When anode voltage=0V, there are four peaks on the mass scan on masses  23,38,41,83 u. This indicate surface ionized particles. Most likely Sodium (23) and Potassium (38,41) and not sure about 83.

Friday, July 13, 2018, 16:58  Cooling it down for the weekend: TBHT=250A, TGHT=450

Friday, July 13, 2018, 17:01 wow! accidentally, changed to those values immediatly. I hope this does not compromise the cathode - Fernando

Monday, July 16, 2018, 06:57: Odd RGA values. Restarting RGA.

Monday, July 16, 2018, 07:14: RGA only displays Water, Nitrogen, and Oxygen. Investigate.

Monday, July 16, 2018, 09:57 Auto-ramping TGHT / TBHT to 580 / 300 A @ 2A per min from 449 / 209 A.

Monday, July 16, 2018, 10:00: Restarted the RGA with an older file loaded. RGA still only displays lines for Water, Nitrogen, and Oxygen. A table of values is still given for the other masses.

Monday, July 16, 2018, 11:08: TGHT / TBHT to 580 / 320 A. Anode to 200V

Monday, July 16, 2018, 11:19: Neon valve carefully opened. Vacuum stable @ 6.56e-07T. Neon response also showed up on the RGA.

Monday, July 16, 2018, 11:25: TBHT @ 340.0A (332A on PS)

FM

Monday, July 16, 2018, 11:55  TBHT@340A @ 354.7A (RB)@346A PS

Monday, July 16, 2018, 15:02 TBHT@345A @ 359.8A (RB)@351A PS

Monday, July 16, 2018, 15:18 Investigation the possible location of the surface ionized ions by sweeping the voltage in lower values <10V

Monday, July 16, 2018, 15:29 Values swept: 10,8,6,4,2,1 V. the same peak was observed at all cases

Monday, July 16, 2018, 15:52 Closing Neon Valve for efficiency measurement.

Monday, July 16, 2018, 15:58 Steady  ion source current. closing Argon valve.

Monday, July 16, 2018, 17:00 Opening Argon Valve

Monday, July 16, 2018, 17:51 Argon valve closed. Neon Valve open. Measuring Mass=20

Monday, July 16, 2018, 18:13 Manually tapped TBHT down to 325A.

FM

Tuesday, July 17, 2018, 09:53  Ramping up TBHT to 345A

Tuesday, July 17, 2018, 10:13 Ramp up finish. TBHT@345A @ 359.7A (RB)@351A PS.  Vacuum ok @ 7.43e-7 T

Tuesday, July 17, 2018, 10:14 Restarting  quads that were off.

Tuesday, July 17, 2018, 10:18 Tuning

Tuesday, July 17, 2018, 11:01 Measurements will start for mass 20.

Tuesday, July 17, 2018, 11:59 Lunch break

Tuesday, July 17, 2018, 12:41 Coming back. TMSQ2 & TMSQ5 off. Turning them on.

Tuesday, July 17, 2018, 13:54 Retuning emittance scanner to default parameters. Cycle the emittance scanner PS.

Tuesday, July 17, 2018, 14:18 Increasing current limit for anode. From 51.282 mA to  51.400 mA

 Tuesday, July 17, 2018, 14:34 Increasing current limin on anode to 52.00 mA

Tuesday, July 17, 2018, 14:35 Closing Neon Valve

Tuesday, July 17, 2018, 15:02 FC6 stable

Tuesday, July 17, 2018, 15:02 Opening "Argon" bottle

Tuesday, July 17, 2018, 15:21 Fc6 stable. The present current lies between the on/off Neon Valve.

Tuesday, July 17, 2018, 15:30 Opening Neon Valve

Tuesday, July 17, 2018, 15:51 Re-tuning. Taking a mass scan.

Tuesday, July 17, 2018, 15:55 Checking the RGA, I noticed that the maximum reading for Neon was 7.05e-8T, and for Argon, 6.15e-7T

Tuesday, July 17, 2018, 16:45 Increasing Anode current limit to 100mA. Increasing TBHT to 347A, 361.8 RB, 353 PS. Vaccum ok@7.87e-7T

Tuesday, July 17, 2018, 16:54 Finish for today.

FM

Wednesday, July 18, 2018, 09:27  Starting new round of measurements.

Wednesday, July 18, 2018, 09:31 TBHT@350A@364.5A (RB) @ 356 (PS).  Vacuum ok at 6.71e-7T

Wednesday, July 18, 2018, 11:48 Finish mass scan sweeps. Leaving for lunch. Coming back at around 3pm due to science week

Wednesday, July 18, 2018, 15:29 Starting again.

Wednesday, July 18, 2018, 15:30 Mass scan at AB=0V

Wednesday, July 18, 2018, 15:56 Mass scan set to 38.5 (K).

Wednesday, July 18, 2018, 15:56 Measuring emittance.

Wednesday, July 18, 2018, 16:02 Closing Argon bottle.

Wednesday, July 18, 2018, 16:08 Closing Neon bottle.

Wednesday, July 18, 2018, 16:13 Measuring what it looks to be a potassium signal. Let's see if the signal decreases overnight.

Friday, July 20, 2018, 11:48: FC0 put in place & the gas lines closed. - Aaron S.

Friday, July 20, 2018, 11:50  : Auto cooling @ 2A per min.

Monday, July 23, 2018, 07:05: Sources off. Optics checked.

Monday, July 23, 2018, 07:13 : RGA error. Restart for proper shut off. IV4 closed.

Monday, July 23, 2018, 07:14 : Ion gauge, turbos off.

15-02-2024

The coil PS control card is fried. Roughly since the beginning of December. The PS was removed.

See attached image.

New PS was installed on Friday.

Tuesday, February 20, 2024, 08:01: Check Coil  not responding.

Tuesday, February 20, 2024, 09:48: System check 2: TGHT / TBHT manually to 5 / 5 A. BIAS / EE / EZL to 1 / -0.5 / 1 kV. Anode to 50 V.

Coil set to 15 A, did not adjust.

Tuesday, February 20, 2024, 12:04: Coil PS SW1-7 switch in was in an "Off" position & wouldn't allow the voltage signal through to the PS. Switched to "on". Coil tapped to 7 A manually & back to 0 A ok.

Fixed*

I vacuumed inside the HV cage, though it has many small areas that are difficult to access so I am not sure how great a job I did.

Turned the bias up and again at 55kV I hear small sparks near the end of the HV duct that brings the cables from the rack. Cannot see anything. If it is really sparking where it sounds like sparking, it must be from the edge of the duct to the faraday cage.

Changing the EZL voltage and the EE voltage has no effect on where it starts sparking.

The resistor/varistor combinations across the target + / -, tube + / - and target- / tube + have been remade and moved to the back of the power supplies to limit the corona discharges at higher voltages. Pictures attached.

Swapped the old 9pin connectors out and replaced with 2 5-pin connectors, same as on the modules.

See attached for current pin out diagram. Many of the wires are too short to reach the bottom sockets, so wires 2, 8, 9 are not connected in the connector. 4 spots are empty on connector 2 (right).  (6, 7) and (4, 5) are twisted pairs. Unused wires are tapped up out of the way, but we should improve this, the tape may come loose due to heat and then the wires could present an HV risk. (Update: added some wire to hold them in place. Slightly better...)

Need to either extend the wires, or put in new ones. All wires are grounded on the rack.

In addition, there are two screws in each connector which are floating right now. Need to make a connection for them but should be ok if we dont go to really high voltages.

 Thursday, October 31, 2024, 13:53: Roughing down empty chamber. U-Line installed.

Monday, November 04, 2024, 11:40: Vent beamline. 

Monday, November 04, 2024, 13:40: 1/2 operating filament spare provided & installed. Roughing beamline section.

Monday, November 04, 2024, 13:51: TMS:TP2 on. 

Monday, November 04, 2024, 13:57: TMS:TP6 on. TMS:IG6 on.

Tuesday, November 05, 2024, 15:00: Venting Chamber

Tuesday, November 05, 2024, 15:19: IG6 still displaying issues. Contacted Edi, 

Tuesday, November 05, 2024, 15:35: Controller replaced. Switch to Filament 2. IG6 on. Reading 3.73e-07T. 

Wednesday, November 13, 2024, 09:16: IG6 is tripped again. 

Wednesday, November 13, 2024, 09:17: Reset & switched back to Filament 2. There is no filament 1. Reading 3.91e-07T.

Wednesday, January 09, 2019, 09:09: Upper HV cage set to Anode / Positive as per dwg ISK4523D Rev 6.

Thursday, January 10, 2019, 10:00: Switch Anode PS to positive

Thursday, January 10, 2019, 11:29: Anode switched on. Short discovered. 10 V = 0 V & 100 mA.

Now ramp cathode current up to 290 A. The total current out is 1.e-7 A.

Fernando Maldonado wrote:

Wednesday, October 30, 2019, 14:49: John C. changed the polarity of the anode power supply to negative, and Fernando M. rewired the cabling on the service cap.

 Wednesday, January 20, 2021, 11:26: John Chow verified that the power supply was in negative mode.

Just as side note, I think the PS was in negative mode since the quoted entry from October 30 2019. Given that the SiC/FEBIAD was supposed to run in cathode mode, the test stand was rewired to this. The only rewiring after this was for the P2N.

Wednesday, October 30, 2019, 14:49: John C. changed the polarity of the anode power supply to negative, and Fernando M. rewired the cabling on the service cap.

Friday, May 03, 2013

The anode cable has been reconnected to F/T J and the 100k resistor placed between L and J. Q is now grounded to L. See dwg ISK4523

Tuesday, May 07, 2013

The cathode cable has been reconnected to F/T B and the 100k resistor removed between L and J. See dwg ISK4563 Rev 3

Wednesday, November 30, 2016, 07:23: Venting

Wednesday, November 30, 2016, 08:35: Roughing.

Wednesday, November 30, 2016, 09:01: RGA on. Turbos @ speed. Ion gauge on.

Wednesday, November 30, 2016, 09:35: RGA off. Ion gauge off. Turbo pumps off.

Wednesday, November 30, 2016, 09:47: Turbo pumps were internally vented. Venting continued.

Friday, November 25, 2016, 14:28: Roughing

Friday, November 25, 2016, 14:47: Turbos started

Friday, November 25, 2016, 14:56: Turbos at speed. Vacuum at 6.4E-6 T. RGA on

Monday, November 28, 2016, 08:45: Ion gauge & Turbo pumps off.

Monday, November 28, 2016, 15:02: Venting.

Monday, November 28, 2016, 15:32: Camera removed & bagged.

Thursday, November 24, 2016, 10:15: Discuss w/ Aurelia. Camera container filled with Argon. Place under Vacuum, monitor w/ RGA.

Thursday, November 24, 2016, 11:43:Pump down started. Camera and case placed near RGA.

Thursday, November 24, 2016, 12:42: Turbo pumps started

Thursday, November 24, 2016, 12:51: Turbo pumps at speed. RGA on

*Note: Nitrogen Anomaly noted on RGA and in report.*

Friday, November 25, 2016, 10:11 : Stopped turbos. RGA off. -AM

Friday, November 25, 2016, 11:10: Venting -AM

Wednesday, May 22, 2019, 13:44: Calibration Confirmed.

New Masscorr setup:

http://isacwserv.triumf.ca/onlylocal/isactdata/save_restore/masscorr/2019-05-22-13-42%20ZrC%238