Cyclotron Technical Difficulties - Schedule 126 Operation

[Science Division]

Dear TRIUMF Users, Experimenters, Operators and Staff,

The cyclotron deflector system has developed technical problems over the 
last few days, resulting in significant instabilities. The problems are 
on a level that has reached the systems trip point.

In a meeting with Science Division and operation stakeholders today, we 
discussed the best path forward. The conclusion was, that additional 
tests and measurements will be carried out today, and then the 
appropriate actions will be taken. This includes potentially the need to 
suspend operation of the cyclotron and raise the vacuum lid for repair. 
In this case, the Accelerator Division is prepared to make all necessary 
repairs over the upcoming weekend and statutory holiday (July 1st), with 
the goal to have beam available for users July 7th.

This message is to inform you about the situation; if the tests today 
and tomorrow indicate other actions, we will inform you as soon as 
possible. However, at this point we anticipate a necessary repair and 
suspended cyclotron operation.

I apologize to all effected users, and should you have additional 
questions, please do not hesitate to contact me.

Jens Dilling

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Dr. Jens Dilling
Head Nuclear Physics/ISAC  TRIUMF
Physics & Astronomy University of BC
Tel/Fax 1 604 222 7413/1074
JDilling at triumf.ca
www.triumf.ca/titan
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