 Mon Dec 14 10:01:52 2009, Damien Gallop, , , OLIS development for CUSP source continued
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Development over the weekend. Results to come. Restart source now and let it warm up. 4He2+ on FC6. Plasma at zero, to duplicate weekend settings. Arc
at 150V. FC6 ~=150enA and settling down presently, IG1 = 2e-7 Torr.
Later ~10:00: FC6 ~500enA. Mass scans next. |
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Mon Nov 23 10:32:34 2009, Damien Gallop, , , OLIS development for CUSP source - installation cont'd
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4He2+ "alpha" CUSP source under vacuum: IOS:IG1=7.3e-7 Torr. Electrical installations today.
I3 development source also at vacuum: 2.7e-6 Torr, which is better than when we started. TP gauge: 1.0e-7 Torr.
Later... Begin leak checking. Note: IOS:BP1 needs servicing. Its base pressure is ~30mT. |
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Tue Nov 24 13:55:55 2009, Damien Gallop, , , OLIS development for CUSP source - installation cont'd
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Keerthi found and fixed a couple more vacuum leaks last night. Present vacuum at IOS:IG1 = 4.4e-7 Torr. Electrical and water services installation in
progress right now.
Later... Most of the services installed. Water tested: mostly OK, but persistent leaks on fiddly source body seals. Let Keerthi adjust these tomorrow. |
Thu Nov 26 16:08:42 2009, Damien Gallop, , , OLIS development for CUSP source - installation cont'd 
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Services completed today. There are still some teething pains, particularly the arc p/s as noted earlier. But we did have some beam on around noon for
the first time, using neon source gas. Plan is to install helium source gas at the last minute, after all other checks, particularly leak checks, and a
background calibration are done. |
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Fri Nov 27 13:36:09 2009, Damien Gallop, , , OLIS development for CUSP source - installation cont'd
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Arc power supply replaced. Water leaks down to one or two pinholes on source body; manageable. Minor mechanical in progress.
Vacuum Group experts looked at IOS:BP1, reported noisy for a minute yesterday. Basically, keep a watch. It should be okay to Shutdown. We will
order a seal kit and negotiate for a backup scroll pump. |
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Mon Dec 21 10:22:33 2009, Damien Gallop, , , OLIS development for CUSP source - installation cont'd
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Keerthi and Marco achieved visible 4He2+ through the RFQ on Friday (or so). Mass spec attached. Development continues today.
Update: First visible A/q=2 beam through the RFQ at about 14:00 on Friday, December 18th, seen on M:5, an historic milestone for ISAC. Beam later
observed on MEBT spectrometer around 16:00. |
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Fri Nov 20 17:26:57 2009, Damien Gallop, , , OLIS development for CUSP source - installation
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Today we installed the CUSP "alpha" source on the MWS port at OLIS. It is vacuum-tight. Looking good. Also we installed remaining components
on the prototype I3 source yesterday and pumped overnight. Vacuum there is good too. Next week is looking like a marathon source week. I also understand
that a new target for ISAC tested well at the ISAC Test Stand today. A hat trick. |
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Mon Nov 30 15:41:00 2009, Damien Gallop, , , OLIS development for CUSP source - initial tests
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We completed the services by end of last week. Of course they could always be better, but everything is fine for this iteration. Keerthi had a first
beam out of the source (to FC3) on Friday, with no source gas flowing. Today we started it up, and got first beam this morning. First 4He beam was observed
on FC6 at around 10:45, and 4He2+ a few minutes later. Plenty of development to go, but it works. |
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Mon Nov 30 15:41:00 2009, Damien Gallop, , , OLIS development for CUSP source - initial tests
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We completed the services by end of last week. Of course they could always be better, but everything is fine for this iteration. Keerthi had a first
beam out of the source (to FC3) on Friday, with no source gas flowing. Today we started it up, and got first beam this morning. First 4He beam was observed
on FC6 at around 10:45, and 4He2+ a few minutes later. Plenty of development to go, but it works. |
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Fri Dec 4 18:15:19 2009, Damien Gallop, , , OLIS development for CUSP source - gas lines & water
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We received back the source this morning. First order of business was to take some EOB scans. See earlier entry. Then we shut down the source and opened
the cage. Water leaks fixed. We had agreed with ICR to let them go for the sake of continuous beam to our users, so that we could avoid switching off the
source. All done. There is a little weeping on one or two of the source body screws, as expected. As a practical matter, we aren't going to fix these. |
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Tue Dec 1 09:27:17 2009, Damien Gallop, , , OLIS development for CUSP source - first overnight running
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The CUSP source ran well overnight, notwithstanding local control of source power supplies. Filament supply had dropped to 115A this morning, which is
approximately 10A over a 16 hour period. Attached are charts of 4He2+ beam on FC6, an archive chart and a fast stripchart of the last six hours. Shortly
we will begin setup for an 8pi shakedown run today. |
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Thu Nov 19 11:14:19 2009, Damien Gallop, , , OLIS development for CUSP source
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Pumps were switched off last night. IOS was vented to Ar and swiped clean this morning. MCIS ready for disembarking from F-cage. IOS:IV0 defeated so
that we could vent the IM with IOS as one volume.
Later... Supernanogan cart is parked at its service dock. TP1 & 2 are up. |
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Mon Jan 11 17:46:31 2010, Damien Gallop, , , OLIS development for 4He2+ beam loose ends
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OLIS was shut down over Christmas. We did a "soft start" of the MWS last Tuesday, after refurbishing and installation before Christmas. Worked
like a jet.
Today: 4He2+ beam development + emittance scans. Here is the best so far. |
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Thu Dec 24 10:13:00 2009, Damien Gallop, , , OLIS development 20Ne1+ from MWS
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The MWS stayed up flawlessly overnight. Beam grew from about 2µA to over 5µA this morning. Was it the pre-conditioning of the RF generator?
We will look at the beam for a bit now, then shut it down for Christmas. |
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Wed Dec 23 11:09:37 2009, Damien Gallop, , , OLIS development 7x
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So... lots has happened.
* Supernanogan *
Heater components installed in plasma chamber. Cart reinstalled into Faraday cage. Scroll pump rebuilt! (Thanks, Dan and Edi!) Pumping started |
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Tue Oct 21 07:14:26 2014, Brian Minato, Other, General, OLIS Work
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MCIS-
the cart was moved into the HV cage. The facilities will be connected and an oven will be tested for the upcoming Se experiment.
Will take measurements for installation of key interlocks on cart power supplies. |
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Fri Oct 24 10:50:20 2014, Brian Minato, Other, Other, OLIS Update
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The nitrogen bottle needs to be replaced.
MCIS- |
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Thu Oct 30 13:14:51 2014, Brian Minato, Other, Other, OLIS Update
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MCIS-
a new oven assembly was installed on the MCIS yesterday. The cart has been installed in the cage and is connected.
The power is connected to the cart oven as is the MCIS bias. it is currently on and being tested for Se |
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Fri Oct 31 20:39:56 2014, Brian Minato, Other, Other, OLIS Update
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MCIS-
the MWS Bias and PE have been moved on to the MCIS (the MCIS connections have been removed).
The plug in power to the HP Signal generator has been moved to a continuous source (Removed from the source controlled by the SSW). |
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Thu Nov 6 08:37:52 2014, Brian Minato, Other, Other, OLIS Update
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MCIS-
the source is off. It is under vacuum and in the HV cage.
SIS- |