Logbooks Lab Maintenance Evaporator_1 Evaporator_2 Laser cutter Target Production Test-Stand RH-ISAC RH-Cyclotron RH-Meson Hall RH-Beamlines RH-ARIEL
  Test-Stand, Page 18 of 53  Not logged in ELOG logo
  ID Date Author Target/No.# Source Station Module Target Oven W.O#down Heat Shield W.O# Status Subject
  102   Friday, June 01, 2012, 12:23 Aurelia LaxdalTa#38LP-SISITWTM1  In progressHV & Heaters conditioning.

Did the HV conditioning.

Heaters conditioning in progress.

The Hall probe is not working: couldn't pass 35.5 units (readback) or 50.16 units (setpoint) at field -3710G.

Tried to turn ON/OFF magnet PS and to reboot Canbus, but nothing worked. Still waiting for E-Fault 6031 to be resolved.

Started cool-down.

  103   Monday, June 04, 2012, 10:51 Anders MjosTa#38LP-SISITWTM1  DoneVenting chamber

Aurelia Laxdal wrote:

Did the HV conditioning.

Heaters conditioning in progress.

The Hall probe is not working: couldn't pass 35.5 units (readback) or 50.16 units (setpoint) at field -3710G.

Tried to turn ON/OFF magnet PS and to reboot Canbus, but nothing worked. Still waiting for E-Fault 6031 to be resolved.

Started cool-down.

 Monday, June 04, 2012, 10:51: Turbos switched off

Monday, June 04, 2012, 11:06: Purging water. Venting.

Monday, June 04, 2012, 11:36: Target removed

  104   Monday, June 04, 2012, 11:40 Anders Mjos      In progressEmpty chamber

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

  105   Tuesday, June 26, 2012, 16:06 Anders Mjos      DoneVented

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.

  107   Tuesday, June 26, 2012, 18:30 Anders Mjos      Problems/SolutionsCrack in source tray insulator

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

Attachment 1: Cracked_insulator.pdf
Cracked_insulator.pdf
  108   Thursday, June 28, 2012, 11:04 Pierre BricaultTest FEBIADLP-FEBIAD    In progressReady to bias the high voltage.
  109   Thursday, June 28, 2012, 11:13 Pierre Bricault LP-FEBIAD     ISAC test stand ready for cathode heating

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.

  110   Thursday, June 28, 2012, 11:19 Pierre Bricault LP-FEBIAD    In progressCathode ramping to 230 A in progress
  111   Thursday, June 28, 2012, 11:27 Pierre Bricault LP-FEBIAD    In progressCathode heating in progress, pressure 8.3e-7 T
  112   Thursday, June 28, 2012, 11:29 Pierre Bricault LP-FEBIAD    In progressLost all cnntrol interface, complete whiteout of the epics system.
  113   Thursday, June 28, 2012, 15:14 Aurelia Laxdal LP-FEBIAD     Quick check

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

  114   Thursday, June 28, 2012, 17:00 Pierre Bricault LP-FEBIAD    In progressCathode heater reached its value of 230 A and stoped. good test.

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

 

  115   Thursday, June 28, 2012, 17:18 Pierre Bricault LP-FEBIAD    In progressLeave the cathode heater at 275 A overninght.
  116   Friday, June 29, 2012, 08:57 Pierre Bricault LP-FEBIAD    In progressContinue cathode heating

 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.

  117   Friday, June 29, 2012, 13:39 Friedhelm Ames       start mass scan

start mass scan to do new mass calibration

  118   Friday, June 29, 2012, 15:02 Friedhelm Ames       mass scan finished

mass spectrum saved as

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

Attachment 1: mass_spectrum_2012_06_29.PNG
mass_spectrum_2012_06_29.PNG
  119   Friday, June 29, 2012, 15:03 Friedhelm Ames       start ramping down heater
  120   Friday, June 29, 2012, 16:39 Friedhelm Ames       mass scan finished

Friedhelm Ames wrote:

mass spectrum saved as

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

 new parameters for mass scan program after fit of mass scan

CONST11 = -4.13

CONST22 = 0.09595

  121   Tuesday, July 03, 2012, 09:23 Friedhelm Ames      In progressstart up again

purged Ne line and started cathode heater ramp up to 295 A

  122   Tuesday, July 03, 2012, 19:05 Friedhelm Ames      Problems/Solutionsshort in anode

A short in the anode has developed during the heater ramp up. Increasing the current limit did not cure it. Start heater ramp down to investigate.

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