Pin configuration between top 9-pin connector on Source Tray and terminal in high voltage rack. Measured 2018-08-21 by Aaron and Anders

The 9 Pin connector was rewired in the ISAC teststand to match the wiring in TM4

The wiring from the connection board in the HV cage to the connector (view from the target unit onto module) is now the following

      ---------------------------

  \     4     8     9     7     6    /

    \      5      1     2      x   /

            -----------------

with the pairs of wires

1,2   (kapton wire twisted pair all way)

4,5  (kapton wire twisted pair all way)

6,7  (kapton wire twisted pair inside the vacuum chamber,  other twisted pair from top of vacuum chamber to HV cage)

8,9  (kapton wire twisted pair inside the vacuum chamber,  other twisted pair from top of vacuum chamber to HV cage)

___ for completeness the wiring on top of the vacuum chamber (view from top onto the feedthrough)

      ---------------------------

  \     1     2     x     4     5    /

    \      6      7     8      9   /

            -----------------

NOTE: with this rewiring the metal screws on the PEEK 9Pin connector have been grounded using Ta foil

Thursday, March 21, 2013: there was a short in one of the lines  - most probably due to a shielding strand into the connector, has been resolved by fixation of the shielding in a position further away with Cu wire

A Sub D 9 Pin connector on a HV insulator was installed on Port Q of the target box at the teststand. The insulator is leak tested and OK, vacuum is below 2E-7 T

The feed through is connected (1to1) to the upper 9 Pin connector of the target tray. Since the existing upper 9 Pin connector was damaged from a previous FEBIAD test, this connector was replaced. For wiring 4 twisted pair Capton insulated and shielded wires (identical to ITE and TM4) of about 50cm length are used.

View on top of the feedthrough and the connector on the source tray (male connectors)

     __________________

    \    1     2      3      4      5   /

      \     6      7     8      9    /

          ----------------------  

1to1 connection for pins 1,2,4-9

Pin 3 is NOT CONNCTED

The pin pairs 1&2, 4&5, 6&7, 8&9 each use a line of twisted pairs

Monday, December 17, 2012, 22:21

Connection to the HV added. The wires end in the HV cage on a screw terminal with labels 1--12. The numbers 1,2,4-9 are used in corresponding notation to the sketch above. Since 3 is not connected at all this terminal is used for grounding the wire shielding.

As cable 2 Capton isolated pairs of wire (1&2, 4&5) and two "normal" pairs for thermocouple (6&7, 8&9) reading are used. So all connections have shielded twisted pair cable, while  (6&7, 8&9)change the cable type at the 9Pin connector

3rd version of the mass marker target has been installed. This one is further back on the heat shield, and has a longer ceramic piece attached. There are three thermocouples as follows:

Monday, March 21, 2022, 13:55 : Roughing down.

Monday, March 21, 2022, 16:45 : Turbos have been on for a few hours. Starting water.

Monday, March 21, 2022, 17:20 : Only TC1 has to be tested with heating and maybe swapped if it is the wrong way around. Otherwise ready to go.

Thursday, March 24, 2022, 10:51 : Ramping up heaters to test thermocouples.

AS:

Monday, April 04, 2022, 09:10: Power locked out. IG1 & Turbo pumps off. HV top cage removed.

   Thursday, March 21, 2013, 14:46: started roughing

                Target was out, visibly inspected, nothing to be seen, no short on the target - wiring of the 9Pin connector shows short circuit inside vacuum chamber

                Wires removed - short could be reproduced with the strandings of the shielding  from the kapton twisted pairs going into the peek connector

               wire shieldings now fixed to position further away with Cu wire

               all wires against ground and each other tested for holding 250V - all fine

               everything reconnected and target put in, torcked w 120 inch pounds

Thursday, March 21, 2013, 15:05 : turbos started

Thursday, March 21, 2013, 15:14: turbos at speed

Thursday, March 21, 2013, 15:17: vacuum at 1.4E-5T

Thursday, March 21, 2013, 18:01: vacuum at 1.45E-6T opening water lines - vacuum is stable

Thursday, March 21, 2013, 19:19 : vacuum at 8.6E-7T - start ramping heater to 580A / 250 A

Friday, March 22, 2013, 00:08: target is heated full way up

           setpoint 570A and 7.250V voltage limit

           readback 564.1A and 7.201V  --> needs more voltage than the normal target !

           vacuum at 1.2E-6T

Friday, March 22, 2013, 15:15: vacuum at 5.4E-7T

         preparing for HV test and mass scan

        transmission mode: Source +3V, everything else on GND: 12nA - mass scan see attachment

       suppression mode 1: Source -15V, everything else on GND: 20pA - mass scan see attachment

       suppression mode 2: Source +3V, everything else on +25V: <1pA - FC0 current while biasing see attachment

       NOTE:  the legs of the target are glowing differently, the left leg (view from the lid side onto the target unit) glows brighter, this side was open during the sintering process of the SiC and needed more alignment at the jig --> see attached picture

       NOTE2: there is a slight increase in TGHT voltage over time: in ~ 22h from 7.201V to 7.216V

Friday, March 22, 2013, 21:33 : vacuum at 4.8E-7, start ramping down

Friday, March 22, 2013, 22:47: heaters down and turned off, vacuum at 2.7E-7T

Monday, March 25, 2013, 00:15: vacuum at 1.4E-7T, IG off, turbos off

By Anders

Monday, March 25, 2013, 08:18: Venting

Monday, March 25, 2013, 08:33: Purging water lines

Monday, March 25, 2013, 08:42: Target removed

By Ray. Note that controls have not been updated yet.

Monday, January 21, 2019, 10:50: RGA on.

Monday, January 21, 2019, 10:54: Waterlines opened. No response on RGA. Vacuum ok @ 8.4e-07. IG6 not responding. Ok for this test.

Monday, January 21, 2019, 11:00: Power / Sources on.

Monday, January 21, 2019, 11:03: Anode to 300 V - 0.000 mA.

Monday, January 21, 2019, 11:05: Auto-ramping TGHT to 300 A @ 2 A per min.

Tuesday, January 22, 2019, 08:10: Auto-ramping TGHT to 580 A @ 2 A per min.

FM

Tuesday, January 22, 2019, 09:43 : Lowering the voltage to turn off Anode PS in order to replace the multimeter battery.

Tuesday, January 22, 2019, 09:51: Multimeter battery replaced. Turning on Anode PS and increasing the voltage to 300 V.

Tuesday, January 22, 2019, 10:46 : Auto-ramping TBHT to 200 A @ 2 A per min. Vaccum ok @1.29e-6 T

Tuesday, January 22, 2019, 13:08 :  Auto-ramping TBHT to 270 A @ 2 A per min. Vaccum ok @1.56e-6 T

Tuesday, January 22, 2019, 15:18 : Auto-ramping TBHT to 290 A @ 2 A per min. Vaccum ok @1.67e-6 T

Tuesday, January 22, 2019, 16:00: Manually-ramping  TBHT to 295 A @ 2 A per min. Vaccum ok @1.76e-6 T

FM

Wednesday, January 23, 2019, 09:35 : Manually-ramping  TBHT to 300 A @ 2 A per min. Vaccum ok @1.21e-6 T

Wednesday, January 23, 2019, 10:49 : Auto-ramping TBHT to 310A @ 2 A per min. Vaccum ok @1.12e-6 T

Wednesday, January 23, 2019, 12:07 : Manually-cooling TBHT to 270A @ 2 A per min. Vaccum ok @1.12e-6 T

Wednesday, January 23, 2019, 14:25:   Auto-ramping TBHT to 330A @ 2 A per min. Vaccum ok @1.03e-6 T

Wednesday, January 23, 2019, 16:23: Anode drain current was in runaway situation. When decreasing the TBHT current, the increment was set to 10 instead of 1 so there was a 10 A decrease from 330 to 320 A. This large decrease was unintended

Wednesday, January 23, 2019, 16:25:  Manually-cooling TBHT to 300A @ 2 A per min. Vaccum ok @1.12e-6 T

Wednesday, January 23, 2019, 17:18 : Manually-cooling TBHT to 290A@ 2 A per min. Vaccum ok @1.12e-6 T

 FM

Thursday, January 24, 2019, 13:18:  Manually-cooling TBHT to 270A@ 2 A per min. Vaccum ok @9.02e-7 T

Thursday, January 24, 2019, 15:28 :  Manually-cooling TBHT to 250A@ 2 A per min. Vaccum ok @8.67e-7 T

FM

Friday, January 25, 2019, 14:59 : Manually-cooling TBHT to 240A@ 2 A per min. Vaccum ok @7.04e-7 T

Friday, January 25, 2019, 16:26 : Manually-cooling TBHT to 230A@ 2 A per min. Vaccum ok @5.18e-7 T

FM

Monday, January 28, 2019, 10:27:  Auto-ramping TBHT to 290A @ 2 A per min. Vaccum ok @4.91e-7 T

Monday, January 28, 2019, 11:32:   Manually-cooling TGHT to 570A@ 2 A per min. Vaccum ok @5.10e-7 T

Monday, January 28, 2019, 14:43:  Auto-ramping TBHT to 300A @ 2 A per min. Vaccum ok @5.46e-7 T

Monday, January 28, 2019, 15:57 : Manually-cooling TBHT to 290A@ 2 A per min. Vaccum ok @5.54e-7 T

FM

Tuesday, January 29, 2019, 15:42 : Manually-cooling TGHT to 560A@ 2 A per min. Vaccum ok @5.54e-7 T

FM

Wednesday, January 30, 2019, 17:23:  Manually-cooling TGHT to 550A@ 2 A per min. Vaccum ok @4.65e-7 T

FM

Friday, February 01, 2019, 14:45:   Manually-cooling TGHT to 540A@ 2 A per min. Vaccum ok @4.74e-7 T

Friday, February 01, 2019, 16:49: Auto cooling TGHT to 0A@2 A per min. 

Friday, February 01, 2019, 22:22:  Auto cooling TBHT to 0A@2 A per min. 

FM

Saturday, February 02, 2019, 10:07:   Auto-ramping TBHT to10A  and TGHT to 10A@ 2 A per min. Vacuum ok @3.13e-7 T

AS

Monday, February 04, 2019, 09:20: Restarted RGA. TGHT, TBHT, Anode, off. Prep to open gas lines.

Monday, February 04, 2019, 09:24: Open / Close SV4 only. Vacuum spike t0 5.5e-05T. Alternate between SV4 & SV5 to fully open Argon.

Monday, February 04, 2019, 09:48: Vacuum Stable @ 5.3e-07T

Monday, February 04, 2019, 09:49: Anode to 200 V. TBHT & TGHT on.

Monday, February 04, 2019, 09:51: Auto-ramping TGHT / TBHT to 580 / 290 A @ 2A per min.

FM

Tuesday, February 05, 2019, 12:01 :  Power / Sources on.

Tuesday, February 05, 2019, 12:02 : BIAS / EZL / EE @ 30 / 13.5 / 1.5 kV.

Tuesday, February 05, 2019, 12:10 : Cancelled! I need to remove first the multimeter in order to have high voltage.

Tuesday, February 05, 2019, 12:10 : Auto-cooling.

Wednesday, February 06, 2019, 07:55: Reset IV4. -AS

FERNANDO! CALL ME OR CHECK YOUR EMAIL BEFORE YOU CONTINUE.

Wednesday, February 06, 2019, 09:35: Cage off. Multimeter removed. Cage replaced.

Wednesday, February 06, 2019, 09:48: Power on. Gas lines (Ar) open

Wednesday, February 06, 2019, 10:00: Sources on.

Wednesday, February 06, 2019, 10:10: Anode 200 V. BIAS / EZL / EE @ 30 / 13 / -1.5 kV.

Wednesday, February 06, 2019, 10:11: Auto-ramping TGHT / TBHT to 580 / 290 A @ 2A per min.

Wednesday, February 06, 2019, 10:12: IV4 open. Optics on.

Wednesday, February 06, 2019, 10:16: Optics set.

FM

Thursday, February 07, 2019, 09:59 : Mass scan attempted  and nothing shows. The current needs to be inverted. This was noted also by checking previous runs and the magnetic field on the epics optics window shows a negative magnetic field, while  now is showing a positive value.

Thursday, February 07, 2019, 12:55: MB1 set from Reverse to Normal manually. Auto range 'On'  FC6. Use 'Prepare down" & 'Down' to scan. - AS

Thursday, February 07, 2019, 16:55 : Auto-ramping TBHT to 310 A @ 2A per min.

FM

Friday, February 08, 2019, 09:04: FC0 current stable. Starting measurements of ion curres as a function of coil current, anode voltage, and possibly tbht. I'll be looking argon and CO.

FM

Friday, February 15, 2019, 15:38 Auto cooling TGHT/TBHT to 0A @ 2A/min

Tuesday, February 19, 2019, 08:34: BIAS / EZL/ EE @ 0 kV. Power to HV also turned off. - AS

Tuesday, February 19, 2019, 14:36 : Starting vacuum peak tests: For this I will close the valve and wait untill the vacuum has stabilized, then I will open the valve to see the maximum vacuum peak obtained.

Thursday, February 21, 2019, 11:58: Restart RGA - AS

Thursday, February 21, 2019, 14:05: SV5 closed, then SV3 & SV4

Thursday, February 21, 2019, 14:15: Mini pump started. Vacuum ok

Thursday, February 21, 2019, 14:20: Valve from mini pump opened. Vacuum jumped to 8.30e-07T after 2 minutes.

Thursday, February 21, 2019, 14:25: SV4 & SV3 opened. Vacuum @ 9.0e-07T with mini pump running.

Thursday, February 21, 2019, 14:30: Mini pump valve closed. Mini pump off. SV5 opened.  Vacuum to 3.1e-06T

 Wednesday, April 14, 2021, 10:18

Work started to bring the ATTS PS inside the ITS HV cage. HV grounding rod and metal sheet around breaker panel were removed - see picture.

 Friday, April 16, 2021, Afternoon

HS line purged and turbos shut down.

Monday, April 19

Morning, Anders vented ITS

11AM, Dan found o-ring and indium seal on the same connector - likely this was the cause of the leak. replaced by a brand new indium seal, punched with the RH punchers, which seems the way to go.

Evening, Luca disinstalls FEBIAD from Fernando, and installs the P2N target. It has not been leak checked in the cold lab prior to installation (I'm not sure where all the equipment is), and no resistance measurements were carried out since I couldn't find Travis's ohm-meter.

Vacuum coming down, but slowly than I expected (took 1h to get from 2e-5 to 1e-5 T, is this right?)

Tuesday, April 20, 2021, 15:33

This morning Ray installed the controls cables connecting the ATTS PSs. They are still attached to the ATTS PLC, but their interlock signal now comes from the TBHT "enable" , through a 15V signal. Once the power is ON, he recommends checking that the TBHT sends the proper 15V (has to be higher than 12V) to the ATTS PLC, checking the voltage between the red and green/while cables on the PLC module labelled "TGHT:MAS". This should be done once the TBHT is "enabled", so the signal is sent.

The DC cables were installed going from the positive and negative poles of the ATTS:SLV. The order and number of 4/0 cables are:

Positive: One cable to G and two cables to E

Negative: One cable to H amd two cables to F

This should be checked with Arthur once he's on site (tomorrow).

A water leak was still seen, while the pressure was around 1E-6 T. Checking all three loops of FS#3, it's confirmed again that the leak is in HF. Will need top open up and pinpoint the leak.  

Thursday, April 22, 2021, 13:45

The lines F and G were inspected for water leaks. After blanking them to inspect the solder joint along the lines, two new indium seals were repositioned, the lines sniffed and no signs of leaks were detected. TS closed up again, pumping down now.

 Friday, April 23, 2021, 21:06

Pressure in ITS slowly coming down. This morning was ~3E-6T and now is 2E-6T. Water was flowing for most of the day, but I turned it off and purged FS#3 with no significant difference. I re-turned it on in order to run short PS tests with little current (up to ~10 A) for few seconds every time. Now I purged FS#3 again to leave the TS pumping over the weekend with air, so that opening the water in few hours/days might give us a better idea if the leak is still there.

As far as power supplies, we ran lots of tests today with Ray and Arthur (both were remotely connected through Teams). Initially the tests were unsuccesful because I kept turning off the main breaker when testing the electronics, and only later realized the ITS-PLC is connected to the same breaker.

After this realization, we progressed step by step: we confirmed that the enable signal (~13 V) was seen by both the ITS-TBHT and the ATTS-MASTER, however we realized that the ATTS:MASTER was *not* turning OFF when it should have. This is because the shutoff voltage signal was not zero, but was around ~1V, and was enough to turn OFF the TBHT (Xantrex) but not the ATTS:MASTER (TDK). Arthur suggested this could be due to the fact that two PLC are tied to each other, and see different "grounds", hence some voltage confusion might be coming from here. After taking a look at the connections in the ATTS PLC, we decided to try isolating the ATTS:MASTER module from its ground connection by disconnecting the yellow and green wires coming from the top of its PLC module, and this resolved the issue when the DB25 connector of the ATTS"MASTER is disconnected from the PS; however, once this DB25 is connected, the voltage seen by the MASTER is still ~1V and not zero, and still enables the PS when it should instead be shutoff. 

Next week we should try to find the proper wire configuration that allows seeing zero V as shutdown signal and not ~1V.   

Tuesday, April 27, 2021, 20:56

The new P2NHT power supply configuration is now operational at the test stand. A relay was added in the PLC cabinet to take a +15V signal from the TBHT PLC module and close a short circuit to "enable" the P2NHT master and slave (TDK-LAMBDA).

After initial ramping up to ~222A, I noticed the voltage read by the PS was about 0.45V, while extrapolating the results from the previous ITS-P2N run, the voltage should have been ~0.9V. I would like to measure the resistances of the lines to pick up potential shorts in the copper conductors in the vacuum chamber.  

Wednesday, April 28, 2021, 11:30 

This morning, the resistance matrix was measured between the feedthroughs of the test stand, see attached picture.   

TBHT+ = A

TBHT- = B

P2NM- = C

P2NM+ = D

P2NS+ = G,E

P2NS- = F,H

Talking to Carla, we agree that the matrix seems correct and does not show any signs of short in the lines. But still, the voltages read by the PS seem too low compared to the previous run on July 2020.

Wednesday, April 28, 2021, 19:14

To make sure that current is not flowing where it is not supposed to be, the ion source only (A, B) was hooked up  to the TBHT

Voltages: 

A/C (TBHT+ / P2NM-)=-0.11 V

A/D (TBHT+ / P2NM+)=-0.11 V

B/C (TBHT- / P2NM-)=0.21 V

A/B (TBHT+ / TBHT-) = 0.33 V

While the PS reads 0.42 V --> The two lines made up by two welding cables each make up for the remaining 0.09 V

There's no current flowing anywhere else, all other feedthrough have V=0 between each other.

Wednesday, April 28, 2021, 20:01

Welding cables attached so that the P2NM and P2NS only (TGHT and COIL) are delivering current to the target.  

At 230A of the P2N heater (130 on the master, 102 on the slave), the sum of all current coming and going to the feedthroughs balances out. 

The voltages across feedthroughs make sense:

B/C (TBHT+ / P2NM-)= 0.20 V

B/D (TBHT+ / P2NM+)=0.22 V

A/B (TBHT+ / TBHT-) = 0.0 V

C/D (P2NM- / P2NM+) = 0.44 V

E/C (P2NS+/P2NM-) = 0.46V

The current going from I (HV common) to H (P2NS-) is zero (0.3A)

After checking these values, I see no reasons to believe the wiring is incorrect, and will proceed with the full installation of P2N heater and TBHT, and ramping up the whole system together. It was noticed though that the TBHT cannot be ramped automatically since the ITS TGHT is not connected to the PLC, and needs to be ramped by hand.

 Calibrating the gas valve

Test high voltage to 30 kV ok

Test gas valve open at 6.1 V

Test Ne leak ok

Will run test from home.

Test completed.

exel file on My Documents in folder FEBIAD Test Aout2012/TestFEBIAD

 Edited by Anders 2012-09-19, file attached.

start high voltage and heaters

Started with Anode at 25V and coil at 0A, bias at 30kV. (attachment 1)

Ramped coil to 60A (0.4V) (attachment 2)

Ramped bias to 51kV, but then TP6 turned off and there was a momentary 0.2A decrease in the TGHT current. No spike in BIAS current seen, maybe TP6 is turning off for another reason? (attachment 3)

At 57kV, a small spark, heard outside the vacuum, sounding like it comes somewhere near the blue racks which hold the power supplies. It has sounded like that to me before. Did not turn anything off but bias current spiked from 110uA to 280uA. (attachment 4)

At 57.5kV another spark, taking down TP1B and TP6, as well as the CB1 steerers and TPS:Q1/2. TGHT current dropped momentarily from 581A to 240A, or so says EPICS. Maybe just a communications effect? Voltage for TBHT also dropped but nothing seen on TBHT. Coil current and voltage also showed small effects. (attachment 5)

After 10mins at 60kV, spike in bias current with slight spike in EE current but no other effects.

After 20mins everything has been stable, will turn the bias back to 30kV. As I turn the bias voltage down, the EE current ramps up. No change to EE voltage... (attachment 6)

Ramping up to 75kV. Started drawing current at 63.5kV this time.

Now at 75kV, drawing 5uA of current. Ramp up easy.

Thursday, December 17, 2020, 13:02

Been at 75 kV since about 8:45. A single spark at 11:58.

Thursday, December 17, 2020, 18:10

75 kV. No sparks since that last one 6 hours ago. Current has been slowly decreasing over time, now sitting around 2 uA. Was about 5 uA around the time of the spark. Starting ramp down. Dumped data.

Test for Aurelia L. Empty LP-SIS w/ end caps in. Right side expanded.

Thermocouples installed (R - L):

X & Y For the (V) checks.

Y - Y

X - O

X - R

L - R

L - O

Datalogger:  R= T1 & L=T2

X = TGHT

Y = TBHT

O = Not in use.

Thursday, January 12, 2023, 09:06: Beamline side roughed down & TP on sometime last night. Vacuum @ 2.77e-06T.

Connect volt meters to 4,5 (TBHT) & 6,7 (TGHT)

Thursday, January 12, 2023, 09:43: IG1 Bypass made. TGHT / TBHT at 10 A. Volt meter check. Both display in negatives.

Thursday, January 12, 2023, 09:54: Swapped wires around for both TGHT / TBHT volt meters. OK. Breaker / PS off. Bypass removed.

Thursday, January 12, 2023, 10:14: Roughing.

Thursday, January 12, 2023, 10:16: BV1A open.

Monday, January 16, 2023, 10:25: Sources off. IV4 closed. Turbo pumps off.

 Wednesday, April 24, 2024, 16:20:     Target assembly installed.

Wednesday, April 24, 2024, 16:20:  VV1 closed. Pumping down to rough vacuum 

Wednesday, April 24, 2024, 16:21:   Water cooling on. Seal on lines confirmed.

 Thursday, April 25, 2024, 09:14    TP1A and TP1B on

 Thursday, April 25, 2024, 15:45:   Vacuum seems to be stalled at 1e-5 T. Resetting turbo pumps has no noticeable effect. TP1B is emitting a soft high pitched tone / ringing. Now venting chamber to reset target assembly and water cooling seals.

 November 28, 2024 1:46PM

Checked in on sample in ATTS.

  Tuesday, December 03, 2024, 15:48

Switched out pellets in ATTS, brought pressures down to ~10 uTorr, heated and cooled sample.

  Wednesday, December 04, 2024, 15:42 Depressurized the ATTS

 Thursday, December 05, 2024, 14:05 Pressurized ATTS with argon, swapped out samples, and repressurized and heated chamber.