Lost communication with EPICS. Came in reset the ...

So far no luck.

The ramp up finished.

I have 3.35E-6 Amp out of the source on FC0.

Vacuum  4.3 E-7 T increase Coil current to 40 A. No effect on vac.

Increase coil to 50 A. Vacuum still good.

I will continue from home..

Test high voltage to 30 kV ok

Test gas valve open at 6.1 V

Test Ne leak ok

Will run test from home.

1524H Start small pump.

1529H stop the pump.

Gas line vacuum pump reinstalled after fitting was modified to receive a standard swagelok connector. The vacuum line was plumbed using 1/4" copper tube (not Stainless) for the the ability to flex and manipulate the line for pump removal and and insertion.

A major leak was found on the connection to the regulation valve on the He bottle. Ferrule replaced. System leak checked.

After He bottle: base 5E-6, no response to He spray

AfterSV1: base 5E-7, no response

After SV2: base 4E-7, no response

The system should now be operational. Gas lines were evacuated with the leak checker.

Rick put the helium bottle back in the rack.

Waiting for status of the gas lines.

The helium bottle was found empty.

Rick will refill it and hook the leak detector on the system to find out

if we have a leak on the line.

Waiting Rick for the fitting on the vacuum pump.

Thursday, July 19, 2012, 12:57: Doors leak checked. No response. Base rate 1.6E-8 atm-cc/sec. TP pressuer 0.0E-4 Torr . TSGIG1 4.2E-6 Torr. TSG:CG1A 0.014 Torr.

Thursday, July 19, 2012, 11:29: roughing

Thursday, July 19, 2012, 11:49: starting turbos

Thursday, July 19, 2012, 11:54: TP1B at speed

Thursday, July 19, 2012, 11:58: TP1A timed out

Thursday, July 19, 2012, 11:58 TP1A restarted. at speed.

Thursday, July 19, 2012, 11:59: both turbos at speed. Vacuum. 2E-5

Anders Mjos wrote:

Due to high vacuum a leak check will be done on the system. Thursday, July 19, 2012, 09:00 : Base leak rate 4E-9 atm-cc/sec Thursday, July 19, 2012, 09:07: Leak detected on side door. Mid 1E-8 range. Thursday, July 19, 2012, 09:08: Leak detected on front door. Mid 1E-6 range. Main leak left or bottom side. Thursday, July 19, 2012, 09:20: Leak on side door could not be reproduced. Previous response possibly due to  "cross-talk" with front door.

 Thursday, July 19, 2012, 11:29: Wiped both o-rings, grooves and sealing faces with kimwipes. Removed black and brown residues.

Thursday, July 19, 2012, 09:35: Switched off both turbos.

Thursday, July 19, 2012, 10:23: Venting

Due to high vacuum a leak check will be done on the system.

Thursday, July 19, 2012, 09:00 : Base leak rate 4E-9 atm-cc/sec

Thursday, July 19, 2012, 09:07: Leak detected on side door. Mid 1E-8 range.

Thursday, July 19, 2012, 09:08: Leak detected on front door. Mid 1E-6 range. Main leak left or bottom side.

Thursday, July 19, 2012, 09:20: Leak on side door could not be reproduced. Previous response possibly due to  "cross-talk" with front door.

Anders Mjos wrote:

Leak found on the Ne supply line. 1E-4 - 1E-5 range. Replaced fittings. Had to use one brass piece. Leak rate 6E-9 (probably due to Ne response). No response to He. Leak rate around low E-8 with regulation valve open. When closing the HV rack, an air supply leak developed on the manifold for the valves. Shut off air supply. Valves still operational, but requires opening up air supply to actuate.

 With the help of Rick, the leak was fixed.

The vacuum pump for the gas lines was removed for repairing the leaking hose.

Leak found on the Ne supply line. 1E-4 - 1E-5 range. Replaced fittings. Had to use one brass piece. Leak rate 6E-9 (probably due to Ne response). No response to He.

Leak rate around low E-8 with regulation valve open.

When closing the HV rack, an air supply leak developed on the manifold for the valves. Shut off air supply. Valves still operational, but requires opening up air supply to actuate.

Monday, July 16, 2012, 15:11: Roughing.

Monday, July 16, 2012, 15:38: Turbos started.

Monday, July 16, 2012, 15:46: TSGTP1B at speed TSGTP1A timeout.

Monday, July 16, 2012, 15:54: Both turbos at speed. Vacuum 3.6E-5.

see e-fault 6142

Aluminum oxide found inside TSHSV1 and the copper line to TSHUHV1.

SV1 replaced and copper line cleaned.