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

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

Thursday, December 13, 2012, 14:36: Roughing

Thursday, December 13, 2012, 14:56 : Starting turbos

Thursday, December 13, 2012, 15:05 : turbos at speed

Thursday, December 13, 2012, 15:06 : vacuum at 2.3E-5 T

The anode PS is turned off and connected to HV common.

the Target is connected to a -18V PS at the center support (Feed through A) for a on/off test of ion suppression

NOTE: there is a shortcut target <--> HV gnd, most propably due to the thermocouple touching something after pumping.

workaround to obtain suppression for today is to put in a differnt driver for the RFQ which can be biased to positive potential.

venting and inspect the target

Wednesday, December 19, 2012, 09:43: vqacuum at 1.9E-7T, stop turbos

Sources arch restared

Wednesday, December 19, 2012, 16:24:

After long power outage, everything is off except the roughing pumps. Two turbo pumps (TMSTP2 and TSGTP1B) have shown fault due to timeout, only TSGTP1B could be reset, while TMSTP2 is still showing this fault

Vacuum in Magnet section is 0.004T according to TMSCG2. Since the target chamber was vented to remove the RFQ tests target, this section is actually pumped down using the roughing pumps (water lines are blanked off)

archivers started

Wednesday, December 19, 2012, 21:43

I was now able to reset TMSTP2.

closed the roughing pumps to the target chamber, vacuum at 0.027T

Started archivers. Controls whited out.

Thursday, January 03, 2013, 11:28: TMSRP2 is noisy. Stopped.

Roughing pump inspected by Vacuum group. Will be replaced later today. See e-fault 6516

Thursday, January 03, 2013, 11:29: TSGRP1 Started

Thursday, January 03, 2013, 11:29: TSGTP1A and 1B started

Thursday, January 03, 2013, 11:38 : TSGTP1A and B at speed

Thursday, January 03, 2013, 11:38 : Vacuum at 1.3E-5 T

TMSRP2 replaced

Thursday, January 03, 2013, 15:03: TMSTP2 and 6 started

Thursday, January 03, 2013, 15:07: TMSTP2 and 6 at speed

Thursday, January 03, 2013, 15:08: Vacuum at 5 E-5 T

 Friday, January 04, 2013, 10:51: Vacuum at 3.2E-7 T

Friday, January 04, 2013, 10:52: Turbos stopped

Friday, January 04, 2013, 13:50: Venting

The optics at the teststand has been switched on, but TMS:CBC1 is not working. A fault report has been send to controls.

After the last test at the test stand, one of the conductor bolts (ITD0058) is damaged. To prevent damage to the thread inserts, all conductor bolts will be replaced with new ones.