 Thu Jul 16 15:38:58 2009, Damien Gallop, , , 16O5+ survey 
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| A/q = 3.2 Field = 837.7G FC6 = 14.5enA |
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Thu Jul 16 15:41:35 2009, Damien Gallop, , , 18O5+ survey
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| A/q = 3.6 Field = 888.6G FC6 = 6.2enA |
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Thu Jul 16 15:49:46 2009, Damien Gallop, , , 16O4+ survey
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| A/q = 4 Field = 936.7 FC6 = 54.0enA |
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Thu Jul 16 15:58:53 2009, Damien Gallop, , , 18O4+ survey
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| A/q = 4.5 Field = 993.5G FC6 = 20enA |
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Thu Jul 16 16:15:39 2009, Damien Gallop, , , 16O3+ survey
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| A/q = 5.3333 Field = 1081.6G FC6 = 110nA |
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Thu Jul 16 16:33:28 2009, Damien Gallop, , , 18O3+ survey
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| A/q = 6 Field = 1147.2 FC6 = 39.3enA |
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Thu Jul 16 16:40:11 2009, Damien Gallop, , , 16O2+ survey
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| A/q = 8 Field = 1324.8G FC6 = 172enA |
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Thu Jul 16 16:50:41 2009, Damien Gallop, , , 18O2+ survey
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| A/q = 9 Field = 1405.0G FC6 = 55enA |
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Thu Jul 16 17:05:29 2009, Damien Gallop, , , 16O1+ survey
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| A/q = 16 Field = 1873.4G FC6 = 204enA |
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Thu Jul 16 17:09:52 2009, Damien Gallop, , , 18O1+ survey
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| A/q = 18 Field = 1987.1 FC6 = 161nA |
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Thu Jul 16 17:15:50 2009, Damien Gallop, , , 16/18On+ survey summary
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Here is a summary of emittances gleaned from the aforementioned elog entries.
A/q |
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Fri Jul 17 09:33:09 2009, Damien Gallop, , , Supernanogan epilogue
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There are the last couple of hours of Supernanogan Development for this set. Our run plan included 17On+ studies. Time will not permit it this time around.
Also, the emittance numbers of 16O and 18O are not distinctive enough as they stand to warrant studies of the in-between mass. Keerthi will run the emittance
data files through his software during post-analysis, and we'll develop our next run plan based on his conclusions. |
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Fri Jul 17 09:47:16 2009, Damien Gallop, , , 18O8+ recheck
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Go fishing in the range 2.24-2.26, but no fish in this pond this time. However, there is a relatively strong beam at 2.3.
A/q = 2.3 Field = 711.2 FC6 = 110enA
No emittance scan possible. |
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Fri Jul 17 10:03:07 2009, Damien Gallop, , , 18O6+ recheck
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A/q = 3 Field = 813.9G FC6 = 2.2enA
I tweaked the adjustment of the displayed A/q calibration to fit this one. |
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Fri Jul 17 10:28:09 2009, Damien Gallop, , , 18O7+ recheck
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| A/q = 2.571 Field = 753.5 FC6 = 50epA |
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Fri Jul 17 10:30:27 2009, Damien Gallop, , , 16O7+ recheck
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| A/q = 2.2857 Field = 710.5G FC6 = 100pA |
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Fri Jul 17 10:32:42 2009, Damien Gallop, , , 16O8+ recheck
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| A/q = 2 Field = 667.3 FC6 = ~10enA |
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Fri Jul 17 10:46:06 2009, Damien Gallop, , , 16O6+ recheck
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| A/q = 2.666 Field = 767.1G FC6 = 3enA |
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Fri Jul 17 11:10:21 2009, Damien Gallop, , , Supernanogan development done 6x
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Beam switched back to 18O4+ by 11:00 as agreed. Some glitches. Here are snapshots of how it looked at handover time.
Later... Sophia prefers using all previously-saved files including ion source. Okay.
Note: For fun, Controls took away isacwserv mid-morning. The ICR did not communicate to them that I was the user... Workaround done with Keiko. |
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Mon Jul 20 09:25:35 2009, Damien Gallop, , , 18O4+ run to TIGRESS complete
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The 18O4+ run at about 5MeV/u ended this morning with reasonable success, I'm informed, despite MCIS vacuum trips, SC cryo trips and a power bump for
good measure.This morning I found beam at FC6 unstable. It appeared to be toggling between plasma states. A little tweak of a few MHz up in microwave frequency
not only stabilized it but also multiplied the brightness. Too bad the users didn't have this beam. Emittance scan in progress now. |