 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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Tue Oct 28 13:30:47 2014, Brian Minato, Other, Other, MCIS Update
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MCIS-
the cleaning has been completed. The oven assembly is removed and the gate valve closed.
The quartz tubes on the ground electrode have been installed with the larger diameter tube pushed as far downstream (toward the optics box) as |
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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- |
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Thu Nov 13 16:31:54 2014, Brian Minato, Other, Other, SIS
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A new SIS source has been installed. The oven has been loaded with Sodium Hydrogen Carbonate (Alfa Aesar 10863) and Rubidium Nitrate.
Pictures are located in 2014-11-13 Source and PS Pics |
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Thu Nov 13 16:34:29 2014, Brian Minato, Other, Other, MCIS Update
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The ethernet cable from the CPI TWT amplifier has been temporarily moved to the Alga 50W amplifier. The Alga had been experiencing loss of communication.
This has not been an issue with the CPI so this cable will be tried with the Alga. A signal generator is not connected to the Alga. |
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Wed Dec 17 13:17:13 2014, Brian Minato, Other, Other, MCIS Update
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The MCIS was vented with nitrogen yesterday. The Se oven was drawn back into the tuner. It was removed with the tuner and blanked.
The standard quartz window was removed and replaced with a ceramic, test window supplied by CPI. (p/n VWU2054). The system is currently pumping
down. |
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Wed Apr 29 07:48:22 2015, Brian Minato, Other, Other, Repair- Water leak inside HV cage
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A water leak was reported inside the HV cage (FR#8079). The cage was accessed to determine the source of the leak (WP#I2015-04-27-1).
The WMS cusp cooling line was leaking. It was close to the MCIS cart (at ground) and had sparked through. The hose was cut at the puncture
location and re-connected. to the fitting. It was re-routed to be further away from the MCIS cart. |
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Thu May 14 12:02:09 2009, Damien Gallop, Routine, General, Testing 2
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| My first OLIS elog entry. |
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Thu May 21 16:23:37 2009, Damien Gallop, Routine, General, 18O4+/8+ to TUDA-II declared done around noon
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End of run diagnostics done. See ISAC elog. Supernanogan cart is already installed and at high vacuum. Prepare to run 17O from Sgan sometime over the
weekend. Today's agenda:
1. Close 18O bottle and gas valves. |
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Fri May 22 10:50:06 2009, Damien Gallop, Routine, General, MCIS online with 17O3+ on FC6
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The previous 18O4+/8+ run to TUDA-II finished midday yesterday. OLIS was prepared for 17O delivery from the Supernanogan source. Leak checking was done
last night. The big offender was a failing metal seal on IOS:TP7. The pump will have to be replaced. Meanwhile the pressure is sufficient for 20nA of 17O3+
with 2.5mm (middle selection) apertures inserted. Present agreement is to leave TP7 as-is for this run. |
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Fri May 22 15:03:55 2009, Damien Gallop, Routine, General, Temporary fix on IOS:TP7
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Vacuum Group applied a temporary fix to the lower body seal on IOS:TP7, which we found last night to be leaking. Edi tells me that similar seals have
failed before. It's an O-ring, not a metal seal. The fix now was to marinate the outside seam with silicon grease and wrap with Teflon tape. We'll see
how that improves the backing line after a while. |
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Wed Jun 3 16:17:51 2009, Damien Gallop, Routine, General, MWS started for 18O1+ production to TIGRESS
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A couple of weeks of 17O3+ to DRAGON ended yesterday with a photo finish. Supernanogan went off at 10:00. Preparations for 18O began. Main event for
yesterday: Replace IOS:TP7. Edi Dalla Valle reported that he had just received a V550 with Conflat flange. "Our timing was perfect." It is working
well. The system was under vacuum again by around noon, and pumped overnight. This morning IG1 was ~5e-7 Torr and IG4 was ~2e-7 Torr, where those two gauges |
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Thu Jun 4 10:46:37 2009, Damien Gallop, Routine, General, 18O source operation overnight
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The MWS delivered 18O overnight, mostly onto FC6. Sophia complained about source stability this morning. It definitely could be improved. Yesterday Keerthi
did some online tweaking of the RF power for stability, with little improvement. The IOS pressure today is about 2e-6 Torr, so I believe the 18O pressure
is too high for good operation, although the brightness is great. The base pressure is about 4e-7 Torr. Tuning is in progress. Given an opportunity, I |
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Mon Jun 8 09:31:39 2009, Damien Gallop, Routine, General, Emittance scan of 18O beam from MWS
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The TIGRESS run ended this morning. Supernanogan Development begins now for two weeks. Begin an 18O1+ emittance scan and also take some fast FC6 current
measurements before we switch over. |
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Tue Jun 9 16:53:55 2009, Damien Gallop, Routine, General, Supernanogan development in progress
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Keerthi started the Supernanogan source today. His primary goal was to test out Rick's theoretical tune calculations. He was ecstatic with the results.
Rick's table gives a tentitive value for the Einzel lens. In fact the ideal value is at or even higher than the bias voltage. However, Keerthi experieced
sparkdowns at those voltages. Rick's calculation gives a reasonable number for better than 50% transmission between MCIS:FC0 and IOS:FC3. The Enzel lens |
Tue Jun 9 20:49:32 2009, Damien Gallop, Routine, General, Supernanogan RF & IOS slits 
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I have been testing various RF power settings for cold starts and beam stability. No surprise, the best tuner setting is approximately midway at about
58%. Different slit selections tested. Emittance scans in progress. Done. |
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Wed Jun 10 11:22:59 2009, Damien Gallop, Routine, General, Supernanogan development mass scans
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Main event this morning so far: mass scans and post-scan analysis using Gabe's tools. We have a pretty good recipe now. Tight scan to mass 20 in progress.
Later... good scan. Geoff and I did a dry run of our presentations for Friday morning. We used the Auditorium computers, etc. After some small teething
pains, everything went well, including a cold start-up of the source. The 17O3+ emittance scan was taken quickly. Pretty good outcome anyway. The mass |
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Wed Jun 10 17:49:40 2009, Damien Gallop, Routine, General, Beam to RFQ
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We handed over the beam to Sophia for testing Rick's new tune. Although there are RF issues at the RFQ presently, her feedback to the operators is so
far, so good. TBC tomorrow morning. Right now, we will open the OLIS cage and install a couple of source gases in preparation for our presentation on Friday. |