[TRIUMF-Experimental-program] Beam Delivery Schedule Update
sciencediv at triumf.ca
Tue Jun 3 10:29:10 PDT 2008
Below are some updates regarding the beam lines and the M9B solenoid.
* The repaired BL1 extraction probe is being installed this
afternoon (June 2). Beam should be available at limited currents
in BL1A, BL2A and BL2C overnight. Wednesday's maintenance has been
rescheduled to tomorrow, Tuesday, June 3. This will be a standard
8--10 hour maintenance, starting at 08:30. Experiments scheduled
to run following this week's maintenance day should expect beam
* The M9 helium compressor broke a valve off the inlet side of the
compressor, repairs of the M9B superconducting solenoid
cryo-compressor have been made but a warm up of the cold mass is
necessary to remove the moisture that was introduced during the
failure. Status as of today is the compressor is being pumped out
and will be purged and pumped again Tuesday and Wednesday (June 3
and 4). The fourth adsorber is also being pumped out it will be
purged and pumped out Tuesday and Wednesday. Thursday (June 5)
they both will be back filled with helium and the system charged
to a start up pressure. Friday (June 6) we will start the
compressor and see how it operates. If the compressor looks good,
the system will be charged with helium to it's operating
pressure. The helium will be circulated through a LN2 adsorber to
scrub out any impurities until the purity is better than 20ppm.
Hopefully we can start cool down of the solenoid mid next week
(June 9), ready for beam by the end of next week (June 12 or 13).
If you are receiving these updates as duplicates, I apologize.
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