Rene Tanaja, TRIUMF, Vancouver, Canada, magua@triumf.ca

The TRIUMF Cyclotron A collaboration of 13 Canadian universities At University of British Columbia (U.B.C.),
Vancouver, Canada
 18 m (59 ft) in diameter Protons accelerated to 520 MeV
 December, 1974: first beam

The TRIUMF Cyclotron

The ISAC Facility
 ISAC target treated as “experiment” for thecyclotron
 Heavy ions are separated, accelerated, delivered toexperiments
 2001: First accelerated radioactive ion beam (RIB) 2006: First RIB through superconductingaccelerator
 Expected maximum acceleration > 6.5 MeV/uISAC Superconducting Linac

Maintenance Coordination
 Organized at ISAC or TRIUMF control room (someactivities require work permits from both) Operators:
 Document maintenance activities
 Can assist if neededMaintenance at TRIUMF
 Three periods:
 Winter shutdown

 Scheduled maintenance days
 Autumn mini-shutdown

 More maintenance days scheduled as issues ariseWinter Shutdown Over 2 or more months, starting in January
 Most significant & time–consuming jobs
 Installations & upgrades Experiment changes

Winter Shutdown Coordination
 Weekly meeting with group representatives
 Discuss progress Plan coming week Weekly schedule updated & posted online

Winter Shutdown ScheduleScheduled Maintenance Days
 About every 3 weeks, when cyclotron protonsource filament needs to be changed
 Sometimes scheduled with cyclotron development
or training day
 Scheduled for 12 - 36 hours

Scheduled Maintenance Days
 Sometimes additional ~ 4 hour maintenance dayscheduled if needed Organizers and department heads meet to decide
if this is necessary, and for how long

Autumn Mini-Shutdown A week in September Like a longer “scheduled maintenance day”
 For some major maintenance issues that can’t wait
until winter shutdown Also used to plan the operating schedule for theremainder of the yearCyclotron Control Room(circa 2005)

Cyclotron Facility Maintenance Issue permits for work in TRIUMF cyclotron area
 Maintain cyclotron, ion source, other equipment
 Replace, upgrade old equipment

ISAC Control RoomISAC Facility Maintenance Issue permits for work in ISAC buildings
 Maintain equipment in ISAC facility
 Install new experiments and facility equipment
 Components of superconducting accelerator &experiments New diagnostics

Cyclotron Facility Work Permits Paper prior to March 24, 2010
 Permit filled the day of job
 Operations makes a copy Worker takes the original Operator enters details indatabase When work is finished,original completed & filed Copy is destroyed

ISAC Work Permits
 Online work permits
 Permit required 1(+) day inadvance Requestor contacts
approving personnel
 Operations activates
permit if approved Before work starts, worker:
 Makes sure permit active
 Reviews comments

 When finished, worker

completes permit withdescription of what was done

The Two Work Permit Systems
ElectronicPaper

 Can be filled, viewed & Face-to-face interaction

adjusted from anywhereon site Details immediately filed
 More efficient

allows direct instruction toworkers
 Worker keeps information
at hand while working
 Easier to notice overdue
work permitsCombining Operations Groups
 Cyclotron and ISAC operations groups recently
joined into one group Cyclotron log book and work permit system bothonline as of March 24, 2010
 Looking for a way to combine advantages of paperand electronic permits
 Discussing assimilation of electronic facilities ofboth control rooms

Summary Maintenance coordinated from each facility’s controlroom
 Three main maintenance times, plus more if needed Winter maintenance most extensive

 Work permit systems are now all online
 Combining the two operations groups means

harmonizing the systems of the two control rooms Efforts in progress