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

 Thursday, March 14, 2024, 15:39: Roughing

Thursday, March 14, 2024, 16:20:TP1B on

Thursday, March 14, 2024, 16:40: TP1A on

Thursday, March 14, 2024, 16:51: IG1 on

Thursday, March 14, 2024, 17:28: Waterline FS#5 open

 Friday, March 15, 2024, 13:19:  Gradually increased BIAS to 25kV, then up to 50kV more slowly. Accompanied by increase in EZL voltage.

Friday, March 15, 2024, 13:50: Periodically increased BIAS voltage in 100V increments watching for sparks. Decrease BIAS whenever sparks. settled at 51.5 kV (cannot increase further without sparking), left at high voltage.

Friday, March 15, 2024, 15:48: Decreasing BIAS to 10kV 

Friday, March 15, 2024, 16:28: ran coil at 80A until vacuum recovered. 

Friday, March 15, 2024, 19:29: decrease coil to 0A, decrease BIAS to 0V

Monday, March 18, 2024, 10:08 increasing TGHT/TBHT to 440A/290A at 1A/30s

Monday, March 18, 2024, 16:00  increasing COIL to 40A, waiting for vacuum to return to normal 

Monday, March 18, 2024, 21:05:  decreasing COIL to 0A

Tuesday, March 19, 2024, 09:35: increased COIL to 40A.

Tuesday, March 19, 2024, 10:17: increased TDH:ANODE (cathode mode) to (-)200V

 Tuesday, March 19, 2024, 10:20: increasing BIAS to 30kV

Tuesday, March 19, 2024, 13:12:  turned on gas. vacuum jumped up and tripped everything off.  gas was immediately turned back off. TGHT and TBHT were off for approximately 1 minute before being turned back on.

Tuesday, March 19, 2024, 13:46:   cooling. need to investigate possible leaks. 

Tuesday, March 19, 2024, 15:58: TGHT and TBHT at 0A. Turbo pumps turned off. waiting to slow before venting.

 Tuesday, March 19, 2024, 16:20 venting

Wednesday, March 20, 2024, 14:47: Target assembly was removed today and the tube from the inlet to the calibrated leak was replaced. Now reinstalled, roughing. Gas was turned on at ~0.2 bar during roughing. No effect on vacuum.

           water cooling also turned on.

Wednesday, March 20, 2024, 14:53 Turbo pumps turned on.

Wednesday, March 20, 2024, 20:24: begin ramping TGHT TBHT to 440/290A at 1A/30s

Thursday, March 21, 2024, 09:54:    Target heated, vacuum good.   Tested gas to ensure there is no noticeable effect on vacuum. Lines subsequently vented through the line roughing pump.

Thursday, March 21, 2024, 09:55    Optics switched on. increasing cathode to 200V and coil to 40A. Watching vacuum, checking beam tune 

Thursday, March 21, 2024, 10:20   ramping BIAS to 30kV 

 Thursday, March 21, 2024, 11:14 : scanned, data recorded

Thursday, March 21, 2024, 11:14  cathode reduced to 100V. scanned 

Thursday, March 21, 2024, 11:32:  coil reduced to 20A. scanned. 

Thursday, March 21, 2024, 11:50  cathode increased to 200V. scanned 

Thursday, March 21, 2024, 12:07 coil increased to 40A.  Argon gas on (-0.8bar at regulator). scanned 

Thursday, March 21, 2024, 12:31  reducing bias to 0kV 

Thursday, March 21, 2024, 13:02 argon regulator pressure increased to -.64bar

Thursday, March 21, 2024, 13:05 increasing bias to 30kV

Thursday, March 21, 2024, 13:15:  vented lines, scanning

 Thursday, March 21, 2024, 13:35 gas on. scanning

 Thursday, March 21, 2024, 15:05 cathode at 100V, scanning

Thursday, March 21, 2024, 15:20 coil at 20A, scanning

 Thursday, March 21, 2024, 15:55 coil off. scanning

Thursday, March 21, 2024, 16:10 cathode off, scanning

 Thursday, March 21, 2024, 17:23  - bias down. changing gas pressure

Friday, March 22, 2024, 09:08   increasing bias, checking tune,  increasing cathode to 200V, coil to 40A, EZL to 13kV

Friday, March 22, 2024, 09:48  gas vented, scanned, gas on, scanned.

Friday, March 22, 2024, 09:48  decreasing bias to 0V, changing gas pressure.

Friday, March 22, 2024, 10:12 pressure at 1bar.abs.  increased bias to 30kV, checked beam tune, cathode to 200V, coil to 40A, EZL to 13kV

Friday, March 22, 2024, 10:13   gas on. scanning 

Friday, March 22, 2024, 10:33   decrease bias, changing pressure. 

Friday, March 22, 2024, 10:57 gas line pressure at 1.5bar.a.   increasing bias to 30kV, checking beam tune, cathode to 200V, coil to 40A, EZL to 13kV

Friday, March 22, 2024, 11:42 decreased bias, changing pressure.

Friday, March 22, 2024, 11:52 gas line pressure at ~2bar.a  increasing bias to 30kV, checking beam tune, cathode to 200V, coil to 40A, EZL to 13kV

Friday, March 22, 2024, 15:40  bias down to 0V. reducing TGHT TBHT to 0/0

 Monday, March 25, 2024, 09:30 Turbo pumps turned off

 Monday, March 25, 2024, 10:00 venting chamber, purged water lines.

 Monday, March 25, 2024,11:00 removed target assembly

 Monday, March 25, 2024,13:00 replaced target assembly, began roughing

 Monday, March 25, 2024,13:50: turned on water cooling. Vacuum stable. Turned on turbo pumps.

 Monday, March 25, 2024, 15:16   turned on optics elements, cathode to 200V, coil to 80A, EZL to 13kV. monitoring vacuum. Gas leak test shows no effect on vacuum (5e-6T).

Monday, March 25, 2024, 15:22: Ramping TGHT TBHT to 440/290A at 1A/30s

 Tuesday, March 26, 2024, 10:32 Ran mass scans with gas off and on. 

Tuesday, March 26, 2024, 10:32 scanning parameter space for optimal beam output - cathode voltage and coil current.

 Tuesday, March 26, 2024, 15:29 ramping TBHT to 300A, scanning

 Tuesday, March 26, 2024, 16:10 ramping TBHT to 310A, scanning

 Tuesday, March 26, 2024, 16:40 ramping TBHT to 320A, scanning

 Wednesday, March 27, 2024, 09:25 - ramping bias to 30kV

Wednesday, March 27, 2024, 09:40 scanning cathode / coil parameter space to optimize output --- highest output at 200V 60A - 200V 62A - magnet drifted and is not right at Ar peak. corrected. scan repeated

Wednesday, March 27, 2024, 10:31 scanning cathode / coil parameter space to optimize output 

Wednesday, March 27, 2024, 11:02   mass scan with 200V 62A cathode coil.

Wednesday, March 27, 2024, 11:17 - lines evacuated. mass scan.

 Wednesday, March 27, 2024, 11:40 bias to 0V.  change gas pressure

 Wednesday, March 27, 2024, 11:50 bias to 30kV.  mass scan

 Wednesday, March 27, 2024, 12:10 bias to 0V.  change gas pressure

 Wednesday, March 27, 2024, 12:21 bias to 30kV.  mass scan

 Wednesday, March 27, 2024, 12:31 bias to 0V.  change gas pressure

 Wednesday, March 27, 2024, 12:43 Ramping bias to 30kV. 

Wednesday, March 27, 2024, 15:00 bias to 0V. changing pressure to .5 bar.

Wednesday, March 27, 2024, 15:13 bias at 30kV.  

Wednesday, March 27, 2024, 15:13 increasing TGHT to 468A (~2250W) - mass scan - monitoring vacuum. stable at 6e-7T

Wednesday, March 27, 2024, 15:39 increasing TGHT to 490A (~2500W) - mass scan - monitoring vacuum. stable at 6e-7T

Wednesday, March 27, 2024, 16:23 reduced cathode voltage to 50V to record the electron current (17.09mA). mass scan taken with coil at 35A

Wednesday, March 27, 2024, 16:35 ramping down BIAS to 0V.

 Wednesday, March 27, 2024, 16:38  decreasing TGHT TBHT to 0A 0A at 1A/30s in preparation to switch to anode mode in the morning.

 Thursday, March 28, 2024, 13:59 - Switched to anode mode

Thursday, March 28, 2024, 13:59 - ramping TGHT and TBHT to 100A at 1A/30s

Thursday, March 28, 2024, 14:37 increasing BIAS to 30kV 

 Thursday, March 28, 2024, 14:47 - ramping TGHT/TBHT to 440A/290A at 1A/7s

Thursday, March 28, 2024, 15:56    mass scan with 200V 62A cathode coil. gas on at 0.5 bar. (bias at 29.8kV)

Thursday, March 28, 2024, 15:56    mass scan with 200V 62A cathode coil. gas vented. (bias at 29.8kV)

Thursday, March 28, 2024, 16:29     ramping TGHT/TBHT to 490A/320A at 1.4A/10s

Thursday, March 28, 2024, 16:36     mass scan with 200V 62A cathode coil. gas on at 0.5 bar. (bias at 29.8kV)

Thursday, March 28, 2024, 16:56     mass scan with 200V 62A cathode coil. gas vented. (bias at 29.8kV)

Thursday, March 28, 2024, 17:13      dropping bias to 0

Thursday, March 28, 2024, 17:14      cooling tght and tbht at 1A/30s

Wednesday, May 29, 2013, 12:09: Debiased to insert temp logger

Wednesday, May 29, 2013, 14:40: Temp logger installed

CH1 COIL
CH2 CTL Block

Wednesday, May 29, 2013, 14:51: Opening gas lines

Temperatures [deg C]
COIL: 190
CTL:   44

Wednesday, May 29, 2013, 15:31: Coil at 50A

Temperatures [deg C]
COIL: 212
CTL:   45

Thursday, May 30, 2013, 09:18: TGHT was voltage limited at about 570A. Increased voltage limit to 5.5V and raised current to 580A

Thursday, May 30, 2013, 09:20: Ramping TBHT to 280A

Thursday, May 30, 2013, 10:03

Temperatures [deg C]
COIL: 227
CTL:   48

Thursday, May 30, 2013, 10:07: Heard a noise from the vacuum chamber coinciding with a spike in vacuum on both gauges.

Monday, June 03, 2013, 08:54: Target debiased and gases off. Target cooling started in preparation for power outage tomorrow at 9am.

Wednesday, June 05, 2013, 09:57: Purging gas lines to vacuum chamber

Wednesday, June 05, 2013, 10:13: Target biased again. Started target heating.

Thursday, June 06, 2013, 13:23:

Temperatures [deg C]
COIL: 227
CTL:   48

Thursday, June 06, 2013, 16:45: TBHT increased ti 290A

Temperatures [deg C]
COIL: 230
CTL:   50

Friday, June 07, 2013, 08:40: Magnet found off. TPS:Q4 and TPS:Q2 found off.

Temperatures [deg C]
COIL: 227
CTL:   48

Friday, June 07, 2013, 14:21: Anode current limit increased to 500 mA. Adjusted magnet current. Increasing TBHT.

Friday, June 07, 2013, 16:24: TBHT at 296A

Temperatures [deg C]
COIL: 237
CTL:   50

Monday, June 10, 2013, 08:19 

Temperatures [deg C]
COIL: 232
CTL:   49

Monday, June 10, 2013, 16:55: COIL at 60A

Temperatures [deg C]
COIL: 244
CTL:   49

Tuesday, June 11, 2013, 08:42: TBHT voltage limited this morning at 291A

Temperatures [deg C]
COIL: 242
CTL:   49

Tuesday, June 11, 2013, 11:02: COIL at 70A

Temperatures [deg C]
COIL: 256
CTL:   49

Tuesday, June 11, 2013, 15:49: COIL at 80A

Temperatures [deg C]
COIL: 272
CTL:   49

Wednesday, June 12, 2013, 08:19:
 Short on TBHT - see attached photo.
T/C logger is is off.
Gas lines closed.
Cooling down target.
Target debiased.

Thursday, June 13, 2013, 08:37: Turbos stopped.

Thursday, June 13, 2013, 09:20: Water lines purged.

Thursday, June 13, 2013, 09:41: Venting

Thursday, June 13, 2013, 10:19: Target removed

Ceramic coated coil development target removed. CTL Febiad target installed.

Roughing chamber.