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 16 of 53  Not logged in ELOG logo
Entry  Thursday, March 08, 2012, 17:16, Friedhelm Ames, Nb#6, , , , , , , mass scan started 
 
Entry  Thursday, March 08, 2012, 17:39, Friedhelm Ames, , , , , , , Problems/Solutions, TPS:Q2 amd TMS:MB1 failed 

TPS:Q2 and TMS:MB1 failed during the scan. -> restarted.

Entry  Thursday, March 08, 2012, 18:32, Friedhelm Ames, , , , , , , , mass scan crashed due to a network error 

mass scan crashed due to a network error will be restarted tomorrow

Entry  Friday, March 09, 2012, 08:53, Friedhelm Ames, Nb#6, , , , , , In progress, mass scan started 

mass scan started again. Total current 3.2e-8 A

Entry  Friday, March 09, 2012, 10:56, Friedhelm Ames, Nb#6, , , , , , , scan finished Nb6_mass_spectrum.docx

mass scan is finished and saved see attached.

Entry  Friday, March 09, 2012, 13:30, Friedhelm Ames, NB#6, , , , , , , heater ramping down 

Fc0 23 nA

IG1 9.9e-7 T

start automatic heater ramping down

Entry  Friday, March 09, 2012, 17:25, Friedhelm Ames, , , , , , , , heaters and HV power supplies off 

heaters and HV power supplies have been switched off

IG1 5.1e-9 T.

Entry  Wednesday, April 11, 2012, 09:30, Friedhelm Ames, , , , , , , Failed, TSGRP1 poor vacuum 

The backing pressure at TSGRP1 does not go below 578 mT. Fault report to vacuum.

Entry  Wednesday, April 11, 2012, 09:34, Friedhelm Ames, , , , , , , , turbopumps in mass separator section started 

turbopumps in mass separator section started after power outages

Entry  Monday, April 16, 2012, 11:16, Anders Mjos, Nb#6, LP-SIS, ITW, TM1, , , In progress, Venting, purging cooling lines 

Venting chamber and purging cooling lines in preparation for target removal

    Reply  Monday, April 16, 2012, 11:56, Anders Mjos, Nb#6, LP-SIS, ITW, TM1, , , In progress, Venting, purging cooling lines 

Anders Mjos wrote:

Venting chamber and purging cooling lines in preparation for target removal

 Monday, April 16, 2012, 11:55: Target removed. Cooling lines must be blanked off before pumping down.

Entry  Wednesday, April 18, 2012, 12:19, Anders Mjos, , , , , , , Problems/Solutions, Noise from roughing pump TSGRP1 

Wednesday, April 18, 2012, 12:15: Blanked off cooling lines. Chamber ready to be pumped down.

Wednesday, April 18, 2012, 12:16: TSGRP1 makes unusual noise when attempting to pump down vacuum chamber. Roughing aborted for now. Edi Dalla Valle is informed. He will have a look at it after lunch.

    Reply  Wednesday, April 18, 2012, 13:09, Anders Mjos, , , , , , , Problems/Solutions, Noise from roughing pump TSGRP1 

Wednesday, April 18, 2012, 13:08 Anders Mjos wrote:

Wednesday, April 18, 2012, 12:15: Blanked off cooling lines. Chamber ready to be pumped down.

Wednesday, April 18, 2012, 12:16: TSGRP1 makes unusual noise when attempting to pump down vacuum chamber. Roughing aborted for now. Edi Dalla Valle is informed. He will have a look at it after lunch.

 Wednesday, April 18, 2012, 13:08: Started pumping down again with Edi present. No noise was observed.

Entry  Wednesday, April 18, 2012, 13:10, Anders Mjos, No target, , , , , , In progress, Pumping down empty vacuum chamber 

Wednesday, April 18, 2012, 13:10: Roughing the vacuum chamber.

Wednesday, April 18, 2012, 13:34 : Turbo pumps started and at speed. Pressure 3.5 E-5 torr

Entry  Friday, April 20, 2012, 08:56, Anders Mjos, Nb#6, LP-SIS, ITW, TM1, , , Problems/Solutions, Insulator stand-off failure ITW-TM1-Nb#6-LP-SIS_-_TestStand.pdf

 When the target was removed from the test stand it was discovered that the custom designed insulator stand-off (ITD0400 made from Mycroy 1100) had swollen and become discoloured in the area exposed to "heat shine" from the target oven. See attached pdf for photos of the insulators.

The heat shield lid was opened up and the target temporarily removed to replace the two insulators that had failed. These were replaced with the commercially available glazed steatite stand-offs. The target had some marks from the insulators which was cleaned with acetone and methanol.

After replacing the insulators, the target assembly was assembled, leak checked and a new electrical check was performed.

 

Additional photos are available on DocuShare

    Reply  Thursday, April 26, 2012, 09:14, Anders Mjos, , , , , , , , removed Al(CH3)3 

Friedhelm Ames wrote:

connected A(CH3)3 instead of He, pumped line and valve with pump on the high voltage rack.. Opened regulating valve first response at mass 27 with valve set point at 7.0.

 The bottle with Al(CH3)3 was removed from the test stand yesterday April 25.

comments in e-mail from Marik:

Anders & I took the Al(CH3)3 bottle out of the test stand & put it in the middle fume hood of lab 07.  There was some puffs of white "smoke" when Anders unscrewed the VCR coupling.  Likely some trapped liquid that oxidized on air exposure.  If at all possible, I would suggest a vertical orientation in the Faraday cage.

-Marik 

Entry  Wednesday, May 09, 2012, 08:56, Anders Mjos, , , , , , , Problems/Solutions, TSGIG1 not working TestStand-IG.PNG

 TSGIG1 has timed out. As seen on the attached screen shot, the IG has been out since 17h May 1st.

    Reply  Wednesday, May 09, 2012, 09:16, Anders Mjos, , , , , , , Problems/Solutions, TSGIG1 not working 

Anders Mjos wrote:

 TSGIG1 has timed out. As seen on the attached screen shot, the IG has been out since 17h May 1st.

 Wednesday, May 09, 2012, 09:15: ISAC Fault Report submitted

    Reply  Thursday, May 10, 2012, 08:13, Anders Mjos, , , , , , , Problems/Solutions, Venting for TSGIG1 repair 

Anders Mjos wrote:

Anders Mjos wrote:

 TSGIG1 has timed out. As seen on the attached screen shot, the IG has been out since 17h May 1st.

 Wednesday, May 09, 2012, 09:15: ISAC Fault Report submitted

 Thursday, May 10, 2012, 08:12: Venting vacuum chamber for Edi - to repair the Ion Gauge.

Thursday, May 10, 2012, 08:45: Vented.

    Reply  Thursday, May 10, 2012, 09:48, Anders Mjos, , , , , , , Problems/Solutions, Ion Gauge filament replaced 

Anders Mjos wrote:

Anders Mjos wrote:

Anders Mjos wrote:

 TSGIG1 has timed out. As seen on the attached screen shot, the IG has been out since 17h May 1st.

 Wednesday, May 09, 2012, 09:15: ISAC Fault Report submitted

 Thursday, May 10, 2012, 08:12: Venting vacuum chamber for Edi - to repair the Ion Gauge.

Thursday, May 10, 2012, 08:45: Vented.

 Thursday, May 10, 2012, 09:38: Ion Gauge filament replaced by Edi.

Thursday, May 10, 2012, 09:48 : Pumping down.

Thursday, May 10, 2012, 10:17: Ion Gauge reading vacuum at 1.3 E-5 torr.

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