Beam Schedule 135 - ISAC Facility Update

[Science Division Shared Account]

Dear ISAC Users,



As you may be aware, a major power outage occurred at TRIUMF last Friday, October 19th that caused all site systems to shut down. This included major cryogenic systems such as in the cyclotron and the ISAC II accelerator. After site power was restored on Saturday, October 20th major efforts were underway to restore critical systems required to operate the accelerators before conventional start-up procedures for beams could be initiated. With all this in mind, radioactive beam to ISAC will not be available for experiments until Friday, October 26th, and ISAC II beam is not expected to be available until Friday, November 9th.



In order to preserve the maximum number of high-priority experiments in the ISAC schedule, b-NMR will now commence on Friday, October 26th and run until Tuesday, November 6th. Following that, the GRIFFIN experiment S1750 will run. Unfortunately, this also means effectively one (1) week has been lost from the tantalum target. This means that the run originally scheduled for the end of that target, S1668, has to be cancelled. The IRIS experiment S1701 will be rescheduled for setup with stable beam on Friday, November 9th. However, while every effort is being made to get ISAC II cryogenic systems up on time, we cannot completely guarantee that this date will be adhered to. We will keep ISAC Users posted.



It is the policy of Physical Sciences Division to preserve the shifts of any experiment that has been negatively affected by this incident. We sincerely apologies for any inconvenience caused to our users.



The new revised schedule will be posted online sometime in the next 24 hours. Please do not hesitate to contact me for more information.



Sincerely,
Chris Ruiz, Beam Scheduler

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Sent on behalf of Chris by:

Allayne McGowan
Administrative Assistant - Physical Sciences Division
t   604-222-7438
amcgowan at triumf.ca<mailto:amcgowan at triumf.ca>
sciencediv at triumf.ca<mailto:sciencediv at triumf.ca>

TRIUMF Canada's particle accelerator centre
www.triumf.ca<http://www.triumf.ca> @TRIUMFLab

4004 Wesbrook Mall
Vancouver, BC  V6T 2A3

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