Tuning time estimates
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Tuning time estimates
To help Users better plan their experiments, a list of typical time estimates for established tuning procedures is shown below. These estimates should be used by the User to budget the necessary overhead for experimental start-up, energy changes, species changes and other procedures.
In addition, interruptions to beam delivery may occur. Some of these interruptions, such as those due to regular maintenance or proton therapy, are known at the time the Beam Schedule is prepared and scheduled accordingly. Others, such as work in the ISAC Target Hall, may not be known at the time of scheduling but are known on a time scale of weeks in advance. The Beam Delivery group will try to meet with the experimental spokesperson and/or designates prior to the beginning of an experiment to confirm what is required from a beam delivery standpoint and to assist with the preparation of a detailed running plan, taking into account these known, but not scheduled, interruptions. At ISAC, this planning may help a User decide the optimum time for an energy change or a species switch. Totally unplanned interruptions, such as those due to mechanical failures, are unavoidable. Because TRIUMF is a user facility, catering to many external experimenters, it is generally not possible to adjust the beam schedule in response to such interruptions.
| Procedure | Time |
|---|---|
General tuning:
|
|
| ISAC-I LINAC tuning to full energy (OLIS to User) | 12 hours |
ISAC-I energy change:
|
|
| ISAC-II LINAC tuning (from scratch) | 8 hours |
ISAC-II energy change:
|
|
Checking the tune:
|
|
Maintenance Day (typical):
|
|
| Proton Therapy (typical) | 4 hours |