 Fri May 14 08:50:56 2010, Damien Gallop, , , 22Ne2+ at 22.44keV for SEBT1 
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MWS continues to provide 22Ne2+ for pilot beam use. Beam quietly sitting on FC6. Stripchart attached. Also, Supernanogan plasma is on at low RF power
for conditioning. |
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Mon May 17 09:09:50 2010, Damien Gallop, , , 22Ne2+ at 22.44keV for SEBT1
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Last day of this pilot beam to TUDA-II. Expect a beam switch tomorrow for sake of TIGRESS.
Attached is Stripchart of weekend beam operation. Pretty nice indeed. Top trace (red) is Q3 skimmer, representative of total beam out of the source
Blue trace is 22Ne2+ on FC6 with magnet field stabilization program active. Brown trace is NA-LCW temperature as measured at exit of Supernanogan plasma |
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Tue May 18 09:03:32 2010, Damien Gallop, , , 22Ne2+ at 22.44keV for SEBT1 EOB
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EOB for SEBT1 run at 08:30, taking 11Li from ITE and 22Ne2+ from OLIS when needed. Attempted emittance scans last evening, but no data showed, and no
more time to investigate. So be it. Another time. |
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Tue May 18 09:15:16 2010, Damien Gallop, , , 20Ne1+ at 40.8keV for TIGRESS setup 8x
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Prepare to switch beam from 22Ne2+ to 20Ne1+. Skimmers from 22Ne2+ run shown below. Table of tune options below. We will be using the Rick Tune.
Device
Present Tune
Scaled
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Wed May 19 09:55:51 2010, Damien Gallop, , , 20Ne1+ at 40.8keV for TIGRESS
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| ISAC-I tuning done yesterday. TBC today into ISAC-II. Beam very nice overnight. |
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Mon May 24 22:42:51 2010, Keerthi Jayamanna, , , 33S development
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Tried to see the background before 33S installation. Found few problems: MCIS:YCB1 does not hold more than
58V.
Very difficult to transport the beam without YCB1. Need to find a solution. Open and fix it is not |
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Tue May 25 00:19:18 2010, Keerthi Jayamanna, , , 33S
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Finally got something going. YCB1 short to the ground. YCB common plate connected to YCB1 power supply. We were lucky.
Polarity was right. Ran the source with no 33S.
Saved file as “backgroundNo33S.dat” No optics set yet. |
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Tue May 25 11:28:00 2010, Keerthi Jayamanna, , , 33D dev
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after 24 hours background spectrum saved as "BackgroungNo33S002.dat"
RF Amplitude :1.553 , RFoutput power= 0, Output power (dB)=0 |
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Tue May 25 11:58:02 2010, Keerthi Jayamanna, , , 33S dev
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after 24 hours background spectrum saved as "BackgroungNo33S003.dat"
RF Amplitude :7.767 , RFoutput power= 5W, Output power (dB)=36.4 |
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Tue May 25 22:02:41 2010, Keerthi Jayamanna, , , 33S spectrum
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| 33S spectrum is saved as 33S_spectrum.dat |
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Wed May 26 18:16:10 2010, Damien Gallop, , , 33S Development
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| Some 3enA of beam on FC6 presently. Let it sit. |
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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 |