| ID |
Date |
Author |
Type |
Category |
Subject |
Text |
 |
|
108
|
Mon Jul 20 17:28:01 2009 |
Damien Gallop | | | MCIS cart removed from cage and parked | We discussed whether or not to leave the
Supernanogan in the OLIS Faraday cage, and
decided no, because the up-coming runs will |
|
|
109
|
Tue Jul 21 17:11:33 2009 |
Damien Gallop | | | MWS preparations for 21Ne operation | With the MCIS cart removed, Geoff hooked
up the leak detector to the MWS source gas
line. He did a couple of hours of leak checking |
|
|
110
|
Wed Jul 22 01:33:29 2009 |
Damien Gallop | | | MWS initial startup summary | Vacuum came down to ~7e-7 Torr. On startup,
bias sparked over somewhere. Vacuum leak
was caused. Later we found that HV had sparked |
|
|
111
|
Wed Jul 22 14:31:28 2009 |
Damien Gallop | | | 21Ne setup to TUDA-II is underway | Last night Keerthi resolved the sparking
issue in MWS and started the source while
I was present. There was a frozen interlock |
|
|
112
|
Mon Jul 27 14:39:22 2009 |
Damien Gallop | | | 21Ne5+ to TUDA-II | 21Ne has been available from the MWS since
mid-week. Here is roughly how last week unfolded
to now: |
|
|
113
|
Mon Aug 3 08:39:31 2009 |
Damien Gallop | | | MWS 21Ne -> 25Mg switchover | Conveniently scheduled for BC Day, we are
preparing to switch over the MWS to sputter
operation with MG source material. Operations |
|
|
114
|
Tue Aug 4 11:13:04 2009 |
Damien Gallop | | | MWS source tuning for 25Mg operation | The source stayed up overnight just fine,
with a little 25Mg beam on FC6. This morning
I did a few mass scans to get a fix on Mg |
6x |
|
115
|
Wed Aug 5 11:29:51 2009 |
Damien Gallop | | | MWS operation overnight and 25Mg status | So... there evidently was a power bump
overnight, because the stability power supply
was "disconnected" from the system. |
|
|
116
|
Thu Aug 6 17:02:00 2009 |
Damien Gallop | | | MWS 25Mg tuning to TIGRESS in progress | Tuning has been on-going through the day.
Here are a couple of emittance scans taken
in-between heartbeats. The first is zoomed |
7x |
|
117
|
Fri Aug 7 10:16:38 2009 |
Damien Gallop | | | MWS 25Mg emittance scans | While there is an SC cavity issue, I have
been repeating last evening's emittance scans.
Here is the best one. About 70nA of 25Mg |
6x |
|
118
|
Fri Aug 7 14:42:29 2009 |
Damien Gallop | | | MWS 25Mg beam reduction | Around noon, Keerthi adjusted the PE down
to reduce the intensity of the Mg beam, as
we are running with attenuators in. He ended |
|
|
119
|
Mon Aug 10 16:12:28 2009 |
Damien Gallop | | | MWS 25Mg operation over the weekend | Summary: good.
Details: A trip occurred at some
point. I restarted the source over the weekende |
|
|
120
|
Mon Aug 10 16:36:33 2009 |
Damien Gallop | | | MWS 25Mg emittance scans | A series of 25Mg emittance scans for Rick.
Starting scan with everything as-is,
i.e. slits closed. |
|
|
121
|
Mon Aug 10 16:43:59 2009 |
Damien Gallop | | | MWS 25Mg emittance scan with slits open | Before proceeding, I nudged in each of
the slits, watching for first clipping. With
the current emittance (nice), the beam cleared |
|
|
122
|
Mon Aug 10 17:16:20 2009 |
Damien Gallop | | | MWS 25Mg emittance scan with downstream quads off | Here is the emittance scan that Rick requested,
beam with Q4/5/6 off. Note that present numbers
for these quads do not match theoretical. |
|
|
123
|
Mon Aug 10 17:20:55 2009 |
Damien Gallop | | | MWS 25Mg emittance scan with zeroed vertical steerers | Here is a variation I thought might be
appropriate.
Data file: 090810_1724ILTEMIT.txt |
|
|
124
|
Mon Aug 10 17:42:18 2009 |
Damien Gallop | | | MWS 25Mg emittance scan with original settings | Finally, here is the "original"
beam. Can you tell the difference (side-by-side
at bottom)? I can't. |
6x |
|
125
|
Mon Aug 10 18:06:09 2009 |
Damien Gallop | | | MWS 25Mg reduce intensity with PE | So... we have had this on-going problem
with intense Mg beam coating our optics.
Keerthi found a good recipe last week with |
|
|
126
|
Mon Aug 10 18:29:32 2009 |
Damien Gallop | | | MWS source trip & restart | Well, so it goes. As I was penning a note
for OPS, the source tripped. It easily reignited
with a little extra Ne. I left the flow slightly |
|
|
127
|
Tue Aug 11 09:54:28 2009 |
Damien Gallop | | | MWS 25Mg operation overnight & MCIS cart installation | As noted earlier, the MWS beam dropped
out at some point after yesterday afternoon's
playtime, due to insufficient PE. Plasma |
|