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

Vacuum stable at 2.8E-7 T

Vacuum at 4.4E-7T

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

No response above background.

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

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

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

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

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

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

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

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

Evgeniy and Kazuya investigated the problem with TSH:TGHT readbacks and they came to the conclusion that the PS is faulty, and the PLC reads correctly the signal sent by the PS.  Kazuya is redirecting the E-Fault from Controls to PS.

Ray Dube estimated few weeks (4-6) to send the PS offsite for repairs. This needs to be scheduled. For the time being, one can use the Test Stand with the PS setpoints, displayed on its front panel, as a reference.

Prepared the Test Stand for Controls to investigate E-Fault#6389.

Evgeniy increased the current limit on the power supply TSH:TGHT from 2 rotations to 7 rotations, after talking to Ray Dube.

I turned on the HV at 30kV and started the Auto-ramping.

Monday, November 05, 2012, 14:41: Roughing

Monday, November 05, 2012, 14:58: Started turbos

Monday, November 05, 2012, 15:06 : Turbos at speed

Monday, November 05, 2012, 15:068: Vacuum at 2.2E-5 T

Wednesday, November 07, 2012, 08:26: Cooling water open. Vacuum stable at 1.8E-7 T

Target looks OK. The right leg was a bit much out of center and will be adjusted in the lab.

The torque required to loosen the bolts were measured (from left to right):

Target legs: 48 and 30 in lbs

Tube htr: 25, 30 and 25 in lbs

Venting the Test Stand.

TiC#3 will be ready to be removed in few minutes. 

Please note: water is still ON.

All TPS optics, with the exception of TPS:Q4 cannot be turned off. E-Fault#6395 for Controls.

Same for the TSG optics: CB1, VCB1 and CBC.

Talked to Evgeniy and Kazuya. Optics are OFF now.

Started the cooldown for SiC#3.

Mass scan file: plotdump-local-clean.txt Nov2 12 13-15-59.txt

The scan was taken at TGHT=573A (read from the PS panel) .

The TBHT = 230A

The TSH:TGHT stopped at 263.7A, but the setpoint is still ramping (now at 421A). The voltage is set correctly: have 6.238V setpoint and 4.386V readback. The reading on the Power Supply shows 418A. Through the window the target assembly looks at high temperature. The readback on Epics seems stuck. E-Fault for Controls 6389

Did the HV conditioning for the TiC#3 up to 30kV.

Heaters ramp up in progress.