Anders Mjos wrote:

See e-fault 6329 Tried to start the pump from another power outlet with Edi. No luck. Pump will be replaced tomorrow.

 Pump replaced by vacuum group

Did the HV conditioning up to 30kV.

Started the heaters conditioning:

for TSH:TGHT up to 580A

for TSH:TBHT up to 230A

The source was used yesterday for operator training.

Today, I found the source off: the ISAC PLC Status was stopped. Kazuya re-started the PLC. I will re-start the source.

Checked with ISAC Ops this morning and they are not available for FEBIAD training. Turned off the source until next week.

turbo pumps in source section and all ion gauges off all optics and heaters tripped. Reason unknown.

Friedhelm Ames wrote:

turbo pumps in source section and all ion gauges off all optics and heaters tripped. Reason unknown.

 Checked the Archiver and the striptool: TSG:TP1A & TP1B tripped on Oct. 10, at 7:53am. Both pumps showed timeout, but the AC breakers were not tripped. Also, checked with MCR: they were no power bumps or cooling water problems around that time. 

Discussed it with Kazuya Negishi from Controls: there were no PLC problems. Kazuya and I would monitor the trips. 

 Thursday, November 29, 2012, 14:15: Stopping turbos

Thursday, November 29, 2012, 15:57: Venting

Thursday, November 29, 2012, 16:21: Roughing

in preparation for RFQ testing. By Sebastian and Anders

An insulated  9-pin D-sub connector was installed on the service cap in port Q (as labeled in ISK4523). The connector mating to the target assembly was placed in the upper slot on the source tray.

Friday, November 30, 2012, 14:57: Rouging in preparation for leak check (next week).

Friday, November 30, 2012, 15:16: Turbos on

Friday, November 30, 2012, 15:25 : Turbos at speed

Friday, November 30, 2012, 15:26 : Vacuum at 3.4E-5 T

Base leak rate 6 - 7 E-9 mbar-l/s

A leak was found around the 9-pin feed through.

In preparation for RFQ target and leak troubleshooting.

Tuesday, December 04, 2012, 11:04: Turbos off (vacuum at 3.8E-7 T)

Water lines purged.

Tuesday, December 04, 2012, 15:03: Venting

Tuesday, December 04, 2012, 15:32 : Vented

The RFQ heating test target was installed by Sebastian and Anders.

Tuesday, December 04, 2012, 17:26: roughing

Tuesday, December 04, 2012, 17:45: starting turbos

Tuesday, December 04, 2012, 17:55 : turbos at speed

Tuesday, December 04, 2012, 17:55 : vacuum at 3.3E-5 T

Vacuum at 4.4E-7T

Base leak rate 2 - 3 E-9 mbar-l/sec

No response above background.

Vacuum stable at 2.8E-7 T

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

new ion guide laser ion source installed. Pure target container without targetmaterial and without surface ion source.

Heat up to 580A for heat test of all components. Distance between target and repeller < 1mm

13:15 start heating TGHT, 1A per 30sec vacuum below 2E-7T

14:50 reached 200A at TGHT (1.5V readback same as frontpanel), vacuum now 2.9E-7T, proceed on to 400A

16:10 TGHT 350 A (setpoint, readback stopped at 269A) and 3.4V readback, sudden increase in vacuum from 4E-7T to 5.5E-7T and larger fluctuations, give it 10min

16:22 vacuum back to 4.4E-7T but some occasional vacuum spikes , proceed to 400A

17:00 at 400A / 4.13V, vacuum hit 2E-6T in between which delayed the heating, now decreasing, will goto 410A for half an hour and then 385A over night

Dec 12th

8:30 3.3E-7T Vac at 385A, goto 420A

8:50 7.5E-7T Vac at 420A, goto 450A

9:20 1.7E-6T Vac at 450A, goto 470A

10:00 1.5E-6T Vac at 470A / 4.5V

11:30 1.1E-6T at 520A/4.56V

Wednesday, December 12, 2012, 11:46   1.7E-6T at 550A/4.58V

Wednesday, December 12, 2012, 14:31 

     580A reached,  Vacuum dropped from 1.8E-6T to 5.8E-7T in 2h

     voltage read back is wrong as well Panel readings are 572A/6.99V (read back values in EPICS are 248A/ 4.6V) 

Wednesday, December 12, 2012, 14:47 6.5E-7T at 592A/ 7.31V (Panel readings)

Wednesday, December 12, 2012, 15:01 there is no contact of the target to HV GND (especially the repeller), the target can still be biased to 5V

Wednesday, December 12, 2012, 19:48     5.9E-7Tvacuum is slowly going down now

Thursday, December 13, 2012, 00:23   5.5E-7T, start cooling down

Short summary on results of first heating teest with the Ion Guide Ion source:

The Ion source is still in good shape, nothing was effected by the heat. Just some deposition in the repellers and the exit electrode

The capton wires used for  wiring the electrodes had some problem with heat and went black and got brittle - for the next test we will ad a Ta schield at the side of the source to prevent radiation inside the source.

Thursday, December 13, 2012, 08:38: TBHT and TGHT off

Thursday, December 13, 2012, 08:38 : Vacuum at 1.8E-7 T

Thursday, December 13, 2012, 08:38 : Turbos off

Thursday, December 13, 2012, 11:19: Venting

Thursday, December 13, 2012, 11:30: Water lines purged

Thursday, December 13, 2012, 11:41: Target removed for inspection.