Schedule 125 Update

[Science Division]

Dear TRIUMF Users, Experimenters, Operators and Staff,

This is an update on the Target Module 3 (TM3) and FEBIAD ion source 
operation situation, currently scheduled to start online operation on 
October 9th.

Although the fabrication and installation of the new source tray for TM3 
was successfully completed on schedule, tests last week revealed that 
some electrical issues remain which appear to be located in the service 
chase of the module, and which are currently being tested before the 
module is considered to be operational again. These tests will be 
completed by Wednesday, October 2nd and a decision about the operation 
will be made on Thursday, October 3rd.

In parallel, we are proceeding to repair the damaged TM4 unit and 
preparing for operation with a high power (HP) tantalum target. The 
repair is difficult, as this has to be done completely using remote 
handling tools and procedures.

However, please note, that when TM3 with FEBIAD ion source is considered 
operational, its startup will be delayed from the currently scheduled 
start date of October 9th by about 4 days (ie. ~October 13th) (more 
details will be available on Thursday).

To compensate for the delayed start, we will extend the current UCx run 
by about 4 days and allow for discretionary experiments and beam 
developments.

Here are the two scenarios we are currently considering:

1) In the case of successful TM3 tests, we will proceed with the 
following plan:
TM3 NiO           FEBIAD
TM4 HP Ta        SIS/LIS
TM4 UCx           IG-LIS

There will be an 8-day gap in between the last two target operations.

2) In the case of unsuccessful TM3 tests, we will proceed with the 
following plan, no FEBIAD target and only two target operations for the 
remainder of Schedule 125:

TM4 HP Ta        SIS/LIS
TM4 UCx           IG-LIS

There will be an 8-day gap in between the two target operations.

I thank you for your understanding and patience and if you have any 
questions or comments please feel free 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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