 Thu May 27 09:11:10 2010, Damien Gallop, , , 33S Development and Handover 
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33S on FC6 overnight. Preparing to send beam to DRAGON
now, and confirm isotope.
Source gas pressure gauge on canister = -20"Hg. MCIS pressure = 7.8e-8 Torr. |
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Fri May 28 11:02:59 2010, Damien Gallop, , , 33S to DRAGON
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| Beam tuning in progress. Source gas canister at -20"Hg. MCIS pressure at 7.62e-8 Torr. |
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Mon May 31 09:18:39 2010, Damien Gallop, , , 33S to DRAGON
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Delivery of 33S6+ to DRAGON continues. A couple of RF tweaks done over the weekend. Source gas canister pressure at -20"Hg. MCIS pressure at 7.3e-8
Torr. At this rate, we could deliver 33S until approximately forever. |
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Tue Jun 1 09:12:39 2010, Damien Gallop, , , 33S to DRAGON
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| 33S6+ delivery to DRAGON continues. Looks like there was an RF tweak overnight. Source gas canister still at ~-20"Hg. MCIS vacuum at 7.4e-8 Torr. |
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Wed Jun 2 09:19:04 2010, Damien Gallop, , , 33S to DRAGON
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33S6+ delivery to DRAGON continues. It is Maintenance Day for everybody else today. Source gas canister pressure = -20"Hg. MCIS pressure = 7.7e-8
Torr. |
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Thu Jun 3 09:29:11 2010, Damien Gallop, , , 33S to DRAGON
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33S6+ delivery to DRAGON continues until Saturday morning. All the signs are that beam is excellent. Source gas canister is still at ~-20"Hg, and
MCIS vacuum is at 7.0e-8 Torr. |
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Fri Jun 4 09:30:48 2010, Damien Gallop, , , 33S to DRAGON
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Delivery of 33S6+ continues to DRAGON for the final day. Some online tuning of the line overnight. Source gas canister pressure remains at ~-20"Hg,
and MCIS pressure is at 7.1e-8 Torr. |
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Mon Jun 7 10:36:14 2010, Damien Gallop, , , 15N setup over the weekend
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Keerthi set up the Supernanogan for 15N operation and destined for TIGRESS, using two source gas options: a miniature bottle of enriched 15N2 and a canister
with a charge of research-grade 14N2. The canister is similar to the one we used for the 33S run to DRAGON, which finished Saturday morning. Canister is
at -22"Hg and MCIS at 7.27e-8 Torr. A couple of beam stability tests were conducted at 15N4+ and 15N6+. Bob can choose which one he prefers to use. |
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Tue Jun 8 09:27:54 2010, Damien Gallop, , , 15N4+ to TIGRESS
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User tuning began Sunday night. Beam physics expert chose to retire the IOS:Q1 defeat, as he did not know until yesterday that it existed. He discovered
it after attempting to retune yesterday around noon from scratch and making a mess, notwithstanding Keerthi's clear instruction to leave
it alone. He also does not know that Rick developed a tune for this, which provides cleaner transmission than the "book" tune. Pity. Presently |
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Wed Jun 9 10:07:33 2010, Damien Gallop, , , 15N4+ to TIGRESS
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Setup into ISAC-II began last night. Tuning is in progress now. Beam on FC6 overnight. Canister pressure is -22"Hg and MCIS pressure=7.1e-8 Torr.
Pressure showed correlation with temperature. It is overcast today and cool, suggesting a fairly flat response today. |
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Thu Jun 10 09:17:42 2010, Damien Gallop, , , 15N4+ to TIGRESS
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Delivery to TIGRESS began yesterday
or so. ICR reported beam intensity drops overnight. I'll look at it presently. Meanwhile, canister pressure is still ~-22"Hg and MCIS pressure is
7.09e-8 Torr. |
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Fri Jun 11 09:21:24 2010, Damien Gallop, , , 15N4+ to TIGRESS
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Delivery of 15N4+ to TIGRESS continues. Source gas canister is still at ~-22"Hg, and MCIS pressure is 7.2e-8 Torr. ICR reported intensity drops
a couple of times this morning. The attached Stripchart suggests beam from the source is down to about a third from status quo. We will look into it now. |
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Sat Jun 12 10:20:14 2010, Damien Gallop, , , 15N4+ to TIGRESS done 13x
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Delivery to TIGRESS ended this morning as scheduled. ICR took nice emittance
scans and is completing a target snapshot now. Canister still at -22"Hg and MCIS at 7.3e-8 Torr.
Chance to snap some wirescans. Attached. |
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Sat Jun 12 11:23:40 2010, Damien Gallop, , , 26Mg6+ to TUDA-II source setup
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After EOB activities from 15N4+ run that ended this morning, we have begun preparations to switch over the ion sources. Turbos off just after 11:00.
We have Mg source material ready. We will be using the MWS ion source. Due to the requirement to run the source at 53kV, we will also remove the Supernanogan
cart from the cage as a sparking precaution. |
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Mon Jun 14 09:44:06 2010, Damien Gallop, , , 26Mg6+ for TUDA-II
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On Saturday we opened the MWS and set it up for Mg operation. Everything went well. We are using the pair of half-moon Mg metal plates together with
a thin Mg foil liner inside a bottomless quartz liner. Tune setup for HEBT/SEBT operation set up yesterday. 26Mg is selected. MCOL3A/B tuning for true
centre is in progress right now while there is opportunity. |
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Wed Jun 16 10:12:58 2010, Damien Gallop, , , 26Mg6+ for TUDA-II
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Beam idle overnight. Beam is being used as a pilot beam for this run. Source was knocked off by a power
bump on Monday evening. Signs are that the root cause is the same as last time, loss of 24V to the IOS interlock panel. |
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Thu Jun 17 09:21:56 2010, Damien Gallop, , , 26Mg6+ for TUDA-II
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TUDA-II began taking beam around midnight
last night. Beam on FC6 for a good part of the night. Steady as she goes. |
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Mon Jun 21 09:20:30 2010, Damien Gallop, , , 26Mg6+ for TUDA-II
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Beam waiting quietly on FC6. There was a power
bump on Friday just after noon that tripped the world. Keerthi restarted OLIS. Beam never really came back to its former glory. We'll see if there
might be an opportunity to touch it up. |
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Tue Jun 22 08:42:33 2010, Damien Gallop, , , 26Mg6+ for TUDA-II
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Beam was redirected to TIGRESS yesterday. RIB delivery to TIDA-II was rendered impossible due to a failure in the target or module. We have a verbal
request in place now to change mass from 26Mg1+ to 24Mg1+. Attached is a plot of beam overnight on FC6 prior to changeover. |
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Wed Jun 23 09:17:34 2010, Damien Gallop, , , 24Mg5+ to TIGRESS setup
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Mass change yesterday morning from 26Mg1+ to 24Mg1+ from the MWS. It was tough to get stable beam from the source, and there are signs of Mg plating
out on stuff. Keerthi was here last evening and again overnight to open the source and clean it up. Good job.
Later... There were a couple of power bumps over the lunch hour. One took out OLIS, the other didn't. Yes, the IOS Enable panel had to get a local |