 Wed Jul 28 09:23:57 2010, Damien Gallop, , , 4He1+ for TIGRESS 
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| Source switchover went quite well yesterday morning. About 6nA of beam on FC6. Beam idle overnight. Tuning has resumed now. |
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Thu Jul 29 15:31:21 2010, Damien Gallop, , , 4He1+ for TIGRESS
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| Beam in use intermittently. |
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Thu Jul 29 18:12:38 2010, Damien Gallop, , , 16O3+ Setup 6x
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So... the long-awaited word to switch OLIS beams and sources finally came through... at 17:45.
Luverly. Anyway, we're on it. Basic idea: 4He1+/MWS -> 16O3+/MCIS. Users only care about A/q being as close to 72/13 as possible using standard beams.
Last moments of 4He beam shown below. MWS is running very nicely. |
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Fri Jul 30 09:09:35 2010, Damien Gallop, , , 16O3+ for TIGRESS
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Supernanogan is online. Setup done last night. There is room for tweaking, but stable 3enA on FC6 of 16O3+ presently. We'll see if ICR has room for tweaking
before handover to users. Yes, we have clearance.
MCIS RF scan in progress. |
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Tue Aug 3 09:31:30 2010, Damien Gallop, , , 16O3+ for TIGRESS
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Beam idle for most of the weekend. Some ion source ups and downs, in part due to a WFB setting on the edge. Tuning began last evening. Some funny business
overnight with apparently disappearing and returning beam. |
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Thu Aug 5 17:47:04 2010, Damien Gallop, , , 16O3+ for TIGRESS EOB Tuesday a.m.
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Delivery of 16O3+ for TIGRESS "buddy beam" purposes ended early Tuesday morning,
followed by CSB setup as an ion source Tuesday day. MWS behaved very nicely. Beam off Wednesday morning for switchover. |
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Thu Aug 5 18:56:48 2010, Damien Gallop, , , 35Cl2+ setup for DRAGON
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OLIS off Wednesday morning for source changeover from 16O3+ to 35Cl2+. We have elected to use the MWS for this run. Supernanogan is removed from OLIS
and parked at its service dock. Lots of leakchecking done on both sources. Both sources are under high vacuum presently and improving. MWS will be ready
to start in the morning. |
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Fri Aug 6 09:50:22 2010, Damien Gallop, , , 35Cl2+ setup for DRAGON 6x
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First beam appearing on FC6 presently, after the source pumped overnight. Source gas valving set up earlier this morning.
Later... We have a whopping 5nA of 35Cl1+. We expect orders of magnitude more. Mass scans and investigation in progress.
Later... Another scan after some source gas changes. Much better. 35Cl+1 = 575nA 35Cl+2 = 3.5pnA with 1mm slits. |
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Mon Aug 9 09:09:36 2010, Damien Gallop, , , 35Cl2+ for DRAGON
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Beam ran quietly over the weekend, with the anticipated intensity drop-off. Source gas canister at ~15"Hg and IOS at 3.3e-7 presently. Several DRAGON
energy changes were done as planned.
Later... at ~09:45 DRAGON is done. |
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Mon Aug 9 10:38:43 2010, Damien Gallop, , , 4He1+ Setup for SCC Development
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We have a request for changing over the source to 4He1+ operation
from the MWS.
Later... OLIS opened. Canister purged with N2 and pumped via IOS, then valved off and disconnected. ICR has restored a recent 4He1+ tune. |
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Tue Aug 10 09:30:36 2010, Damien Gallop, , , 4He1+ for SCC Development
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| Beam idle overnight, and grew nicely. Source tweaked up and throttled back a little while ago. SCC development expected to continue today. |
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Wed Aug 11 10:35:03 2010, Damien Gallop, , , 4He1+ for SCC Development
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| Beam used into last evening, then idle overnight. Nice and stable. Maintenance Day for the cyclotron and ISAC. |
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Fri Aug 13 09:27:49 2010, Damien Gallop, , , 4He1+ for SCC Development
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MWS is running nicely. SCC development continues. This is scheduled to end on this coming Tuesday morning. It will likely continue for a couple of days,
after which there would be a beam switch to 16O2+ from the MWS for TUDA-II setup. |
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Fri Sep 10 10:38:13 2010, Damien Gallop, , , 16O3+ for DRAGON
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Tue Sep 14 09:18:28 2010, Damien Gallop, , , MCIS Development 8x
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The 16O3+ DRAGON run just finished. MCIS Development begins this morning for a few days. The goal is to install and characterize the new sputter ion
source.
Below are vacuum pics before and after closing MCIS:IV0. There was a bit of a spike during closing. All three turbos switched off. TP3 is down |
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Thu Sep 16 17:06:22 2010, Damien Gallop, , , MCIS Development
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A new sputter source was installed onto the Supernanogan. A wire of Au is installed in the source. Mass scans this morning with source at equipotential.
Source patched to MWS EE supply and biased to ~1kV tunable. That makes a significant improvement in intensity. Beam at FC6 is 197Au24+ presently. |
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Fri Sep 17 14:02:29 2010, Damien Gallop, , , MCIS Development
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Today's agenda: RF frequency scans and generally getting a feel for the new sputter source.
Mass scan plots in region of 197Au25+ attached below, taken with and without the sputter source on. Matlab post-processed pics to come shortly. |
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Mon Sep 20 09:34:44 2010, Damien Gallop, , , 4He1+ for DRAGON
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MCIS Development finished Friday evening. OLIS switched to MWS operation and setup began for 4He1+ delivery to DRAGON. Beam handed over to experiment
last night. |
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Thu Sep 23 09:20:34 2010, Damien Gallop, , , 4He1+ for DRAGON
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DRAGON continues to take MWS beam.
Later... 14:00 EOB. Prepare for Mini-Shutdown. |
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Fri Sep 24 13:22:00 2010, Damien Gallop, , , OLIS Maintenance and Development
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Supernanogan on overnight, in the search for gold. A trace of 197Au34 observed this morning. Development continues.
A/q: 5.7941
FC6: ~500epA |