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ID
Date
Author
Type
Category
Subject
Text
41
Thu Jul 2 16:55:04 2009
Damien Gallop
Routine
General
RF frequency scans versus each charge state of 16O
Let's take a look at varying frequency
versus beam current for 16O2+. Starting RF
values shown below. FC6 = 1.09enA.
7x
42
Fri Jul 3 10:03:11 2009
Damien Gallop
Routine
General
Overnight beam stability on FC3
Here are some pics and data from total
MCIS beam on FC3 overnight. A bit inconclusive,
but there may be a temperature correlation.
43
Fri Jul 3 10:29:15 2009
Damien Gallop
Routine
General
RF frequency scans versus each charge state of 16O cont'd.
16O2+ beam on FC6 = 10nA as before. Move
to 16O3+ A/q = 5.33...
A frequency scan between 13 &
44
Mon Jul 6 10:57:08 2009
Damien Gallop
Routine
General
Beam stability versus temperature over weekend
We had 16O3+ on FC6 on Friday. An IOSIOC
reboot occurred mid-afternoon Friday unfortunately.
Operators restored beam at about 06:00 on
45
Mon Jul 6 17:34:24 2009
Damien Gallop
Routine
General
18O background studies
Well... my browser blew away just before
I submitted version one of this entry. Let's
try again.
6x
46
Tue Jul 7 15:43:19 2009
Damien Gallop
Routine
General
ISIS emittance rig tests this morning
Keerthi and I were front and centre doing
ISIS emittance rig testing this morning.
He ran it, and I tried to find ways to run
47
Tue Jul 7 17:47:14 2009
Damien Gallop
Routine
General
18On+ beam & emittance
As noted earlier, we have 17O and 18O source
gas attached to the Supernanogan source chamber.
Both are valved off presently. The source
48
Wed Jul 8 09:22:07 2009
Damien Gallop
Routine
General
18O4+ beam growth overnight
After accessing the OLIS cage and opening
the 18O source gas valve, I restarted the
Supernanogan source last evening around 18:00
49
Wed Jul 8 09:34:58 2009
Damien Gallop
Routine
General
18O4+ frequency optimization
Starting frequency: 15.7864GHz => 870pA
on FC6 Step size: 1MHz. Selected peaks
shown. There were many smaller resonances
50
Wed Jul 8 10:57:46 2009
Damien Gallop
Routine
General
18O4+ emittance scans
Tune saved as 090708_1200.snapmcisfc6.
I settled on the 15.486GHz optimal frequency,
and tweaked that for effect. Then I ran a
10x
51
Wed Jul 8 11:52:54 2009
Damien Gallop
Routine
General
Supernanogan development run plan for the remainder of this set
* 18On+ emittance scans at present ion
source settings: complete today.
* 18On+ frequency measurements: Thursday.
52
Wed Jul 8 16:12:51 2009
Damien Gallop
Routine
General
Mass scan in progress
A mass scan from A/q of zero to 25 is in
progress. Data file (large): masscorr_mcis_090708.txt.
The source is optimized for 18O4+. Fishing
53
Wed Jul 8 17:47:26 2009
Damien Gallop
Routine
General
18O4+ emittance scans
First up is a check scan of 18O4+. There
is a definite vertical offset compared to
earlier today. Otherwise, it correlates well
54
Wed Jul 8 17:58:02 2009
Damien Gallop
Routine
General
18O1+ emittance scan
Here we go. A/q = 18 FC6 = 141.0nA MB =
2078G @ 130.2A
55
Wed Jul 8 18:12:25 2009
Damien Gallop
Routine
General
18O2+ emittance scan
A/q = 9 FC6 = 50.0nA MB = 1470.8G @ 90.8A
56
Wed Jul 8 18:20:43 2009
Damien Gallop
Routine
General
18O3+ emittance scan
A/q = 6 FC6 = 49.5nA MB = 1201.4G @ 73.1A
57
Wed Jul 8 18:38:21 2009
Damien Gallop
Routine
General
18O4+ emittance scan
A/q = 4.5 FC6 = 29.5nA MB = 1041.8G @ 62.4A
58
Wed Jul 8 18:47:43 2009
Damien Gallop
Routine
General
18O5+ emittance scan
A/q = 3.6 FC6 = 12.5nA MB = 931.8G @ 55.3A
59
Wed Jul 8 18:57:09 2009
Damien Gallop
Routine
General
18O6+ emittance scan
A/q = 3 FC6 = 5.5nA MB = 851.5G @ 50.1A
60
Wed Jul 8 19:07:15 2009
Damien Gallop
Routine
General
18O7+ emittance scan
A/q = 2.57 FC6 = 0.25nA MB = 790.0G @ 46.2A
Not enough intensity for an emittance
scan.
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