 Tue Jun 14 18:48:14 2005, Experimentor, Normal Running, Power bump at 18:40
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Solenoid tripped on a power bump at 18:40 Tuesday
-- Donald Arseneau |
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Sat Jul 22 06:34:14 2006, Experimentor, Quench Recovery, looking good
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Donald Arseneau reporting.
It is looking pretty good, so I came back in with the intent of energizing
the magnet. Doug should be up now or soon, so I'll wait a little for you
to see this. If you do, call the m9 counting room 222-7379. After waiting
a while, I will just forge ahead. |
 Fri Oct 13 00:13:57 2006, Experimentor, Quench Recovery, Energized solenoid.
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Hi there,
This is Khashayar (experimenter). Lookin at all different temperatures and
levelson the monitor, it seems everything is stable now. I wonder if you
could let us know what time we can have beam again? Would you please send an
email to kghandi@mta.ca if you know the answer? You can also reach me at my
cell# (506)961-0802 any time.
Thanks
Khashayar
> Switched to series mode about 6 hours ago. Cooling continued including
> power leads until LHe level at about 50% and powerleads appeared stable. |
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Fri Dec 19 11:34:10 2003, Doug Preddy, Quench Recovery, Final home of this E-log
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http://isac.triumf.ca/m9sol/
Chris has set up the M9 solenoid e-log at the above web address. Play with
it and let me know if it breaks. |
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Fri Dec 19 13:59:53 2003, Doug Preddy, Maintenance, To-Do list for M9SOL
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> I had distributed this list by email earlier this month. I have added
> a few items at the bottom. I am posting it on the M9SOL Elog under
> Maintenance. Some of the items may not be achievable or practical but
> I thought it would be a useful first attempt at a To-Do list.
A couple of other things to add:
Rebuild cooling water circulation pump with new seals and bearings.
Add air bleeds to the copper nonactive water lines.
Doug |
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Fri Apr 16 10:15:26 2004, Doug Preddy, Start Up, Changes to M9sol Vacuum PC
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Yesterday and today there have been a number of changes made to the M9
Vacuum control computer. The computer now automatically boots up to the
Epics control page. This logbook is also automatically started. |
Mon Apr 19 15:06:49 2004, Doug Preddy, Start Up, Started turbines 
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Purifier run over the weekend. Both LN2 dewars empty, but purifier cold.
Disabled CV211 and flowed all charge gas through purifier. Started turbine
at 11:00am. set strip tool to monitor temps. Started M9BCP2. Pumped out
beamline between BV% and BV7. Opened BV6. |
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Tue Apr 20 07:06:41 2004, Doug Preddy, Start Up, morning day 2
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Temps in solenoid are equalling out. Increasing PIC229 to 11 bar. |
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Tue Apr 20 07:33:03 2004, Doug Preddy, Start Up, PIC229 at 11bar
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PIC229 at 11 bar. Changed strip tool to 15 sec increments. |
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Wed Apr 21 06:39:17 2004, Doug Preddy, Start Up, over night
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Changed to parallel cold mode at 9:30.
At about 4:30 the city water chiller was turned on. The air compressor had
also tripped off. It was reset and restarted. |
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Wed Apr 21 06:48:31 2004, Doug Preddy, Start Up, JT bypass closed
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Closed cv155 |
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Wed Apr 21 08:16:18 2004, Doug Preddy, Start Up, switch to series mode
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Switched to series mode. |
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Thu Apr 22 10:39:16 2004, Doug Preddy, Normal Running, Yesterday
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Added two bottles of UHP helium to buffer tank.
Had no liquifation rate, so optimized Ti121 and HIC141 . Finally put TIC121
into manual mode at 0.65. Power lead fluctuation died out and liquid
started building.
This morning changed TIC121 back to auto mode and played with it's setting
to minimize the power lead and TI121 ripples.
TI121 ripples seem tied to power lead ripples.
System seems stable enough to energize the solenoid. |
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Fri Apr 23 09:19:30 2004, Doug Preddy, Normal Running, CV211
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PIC 229 was down to 10.8 bar this morning. PIC 229 was trying to open CV211
to charge the system. I realized that in restoring the control to CV211 I
did not get the wire into the connector properly. Went back up to the
compressor building and reconnected the control wire to CV211. pressure is
back to 11 bar. TI121, LHE in and liquid level ripples are now all reduced.
System was ramped up to 500 amps yesterday at 14:00 |
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Mon Apr 26 07:48:46 2004, Doug Preddy, Quench Recovery, Series mode
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Switching over to series mode. |
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Mon Apr 26 08:12:30 2004, Doug Preddy, Quench Recovery, Power leads flow
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Throttled back the LHe in until the power leads started to warm. My goal is
to flow "warm" gas (hopefully 80K) through the leads to drive any frozen
impurities out. |
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Tue Apr 27 09:03:18 2004, Doug Preddy, Normal Running, Power leads
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Power leads are being monitored with the strip tool graphs. I saw the temps
go from having a ripple to almost no ripple, but starting to increase in
temperature. I also noticed that the flow had dropped to 200 mm. I power
cycled hic142. This resulted in an immediate drop in temperature, an
increase of flow to 250 mm, and a slight drop in the LHe level. The temps
seem to be stable, with only a slight ripple. |
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Wed Apr 28 09:30:09 2004, Doug Preddy, Normal Running, power leads again
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Same story as yesterday. Ripples dieing out, flows down to <200 mm, temps
increasing. Turned HIC 142 down to 0.4 then back up to 0.75. Temps dropped
quickly. Then turned HIC 142 to 0 and back to 0.75. Temps dropping, flow >
250mm. Did not let negtive lead >10K, so would not have caused a trip.
TIC 121 into auto mode. |
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Thu Apr 29 23:43:15 2004, Doug Preddy, Quench Recovery, Starting flow to solenoid
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Solenoid quenched due to power leads at 9:00 tonight. Restarted flow in
parallel warm mode. |
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Fri Apr 30 01:53:34 2004, Doug Preddy, Quench Recovery, switched to parallel cold
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