A chip of insulator material was detected below the lower target insulator stand-off (attachment - left picture). The chip may come from the tube heater insulator above (attachment - right picture). The chip will be further investigated when the target is removed.

During the mass scan today it was discovered, that the mass calibration was off. Further investigation showed, that the Hall probe readings are a factor of 1.31 lower than during previous measurements. A fault report has been issued to controls.

Thursday, May 17, 2012, 15:14: Started roughing. Cooling lines blanked off.

Thursday, May 17, 2012, 16:52: Starting turbos.

Thursday, May 17, 2012, 17:00: Turbos at speed. Vacuum at 1.5E-5.

Thursday, May 31, 2012, 14:46: Switching off turbos

Thursday, May 31, 2012, 15:05: Venting

HS water lines blanked.

Monday, June 04, 2012, 11:40: Roughing.

Monday, June 04, 2012, 11:58: Starting turbos. 

Monday, June 04, 2012, 12:06 : Turbos at speed. Vacuum 1.5 E-5

Anders Mjos wrote:

HS water lines blanked. Monday, June 04, 2012, 11:40: Roughing. Monday, June 04, 2012, 11:58: Starting turbos.  Monday, June 04, 2012, 12:06 : Turbos at speed. Vacuum 1.5 E-5

 Tuesday, June 26, 2012, 16:06: Turbos off.

Tuesday, June 26, 2012, 17:20: Vented.

Testing FEBIAD anode end cap as per dwg ITD0304 REV C

Target with TUBE ONLY. Do not use target heater.

Tuesday, June 26, 2012, 18:03: Roughing

Tuesday, June 26, 2012, 18:24: Turbos started

Tuesday, June 26, 2012, 18:31 : Turbos at speed. Vacuum at 1.8E-5

Wednesday, June 27, 2012, 08:48: Cooling opened. Vacuum stable at 4.2E-7. Ready for testing.

 A crack in the insulator ITD0054 was observed while mounting the target assembly. See attachment.

The ISAC test stand is ready for cathode heating.

Bias voltage: 30000 V

Bias current: 37 microAmp

Anode bias: 200 V

Anode current: 6.105 mA

Cathode current: 0 Amp

Cathode voltage: 0 V

Coil current: 30 A

Coil Voltage 0.2 V

EE Voltage: 1800 V

EE current: 30 microAmp

Einzel Lens voltage: 14000 V

Einzel lens current: 49 microAmp.

Just a quick check at the Test Stand:

1. The system operational (  white out not present ) with TSH:TBHT heating in progress.

2. Started the Archivers: for Source and Optics.

3. Removed bypass on TSH:SV5 since it's not necessary anymore.

4. Currently: TSH:TBHT=107A

Now ramp cathode current up to 290 A. The total current out is 1.e-7 A.

 This morning the pressure was 3.5E-7 T. Current at 275 A is 30nA.

Continue cathode heating to 290 A during meeting.

Start seeing some electron current from the cathode around 275 A.

start mass scan to do new mass calibration

mass spectrum saved as

plotdump-local-clean.txt_Jun29_12_14-55-43.txt