RHIC Machine Specialist at Brookhaven Laboratory
This collection of images and text provides insights into the operations and personnel involved in the RHIC accelerator complex at the Brookhaven National Laboratory. It highlights the traditional startup period, summer shutdown procedures, and the roles of various teams and experts. The detailed account covers the tasks, challenges, and expertise required for managing the accelerator systems effectively.
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Presentation Transcript
Travis Shrey RHIC Machine Specialist Collider-Accelerator Dept Brookhaven National Laboratory 10/30/2014 WAO 2014 1
Facility/Personnel highlights Traditional StartUp Period New StartUp Period Case Study provides a test for the new method 10/30/2014 WAO 2014 2
Summer shutdown June through December ~22 weeks of cryogenic operation ($$$) 3-4 days of cooldown to 4K StartUp Power supply checkout during day & evening shift, beam work during midnight shift only for the first 4-5 days 24 hour beam work from that point forward until Physics is declared Experimental physics operations 10/30/2014 WAO 2014 3
Injectors are set up for beam ~4 weeks prior to RHIC cryogenic operation 10/30/2014 WAO 2014 4
The StartUp period for RHIC has become a well-defined list of tasks, even with constant recommissioning Some tasks require expert-level knowledge The Operations group now has sufficient experience to be able to perform the balance 10/30/2014 WAO 2014 5
10/30/2014 WAO 2014 6
Operations Group 6 teams of rotating shifts 1 Operations Coordinator (5-15 years experience) 2 Operators (0-10 years experience) 2* RHIC Machine Specialists (17,19 years experience) Responsible for hourly management of the accelerator complex (Booster, AGS, RHIC) 10/30/2014 WAO 2014 7
Accelerator Physics group Physicists with expert level knowledge of one or more accelerator systems (RHIC & Injectors) Some the original designers of RHIC systems Responsible for developing and commissioning machine upgrades 10/30/2014 WAO 2014 8
RHIC Run Coordinator Chosen from Accelerator Physics* group Experience with Operations ranging from none to extensive Experience with RHIC ranging from none to extensive Responsible for day to day management of the run and the meeting of Physics goals Often separate Run Coordinators for Protons and Ions if run during the same Fiscal Year 10/30/2014 WAO 2014 9
Run Coordinator develops StartUp plan Run Coordinator holds daily meeting to report progress Run Coordinator maintains Plan of the Day to deliver shift-by-shift instructions Operations staff operates Injector accelerators RHIC Accelerator Physics shift leader operates RHIC to meet shift s Plan of the Day goals 10/30/2014 WAO 2014 10
Given the amount of variation in the experience level of the Run Coordinator with regards to Operations or RHIC itself, there can be an extremely steep learning curve The Run Coordinator runs out of hours in the day (especially when needed to complete AP work for the Run) When conflicts arise shift leader requires guidance from Run Coordinator, either in person or via phone 24 hours a day Experienced RHIC AP personnel don t want to be on shift Less experienced RHIC AP personnel know less about operating RHIC than many of the Operations crews 10/30/2014 WAO 2014 11
RHIC Machine Specialists develop StartUp Plan Run Coordinator holds daily meeting to report progress RHIC Machine Specialist maintain Plan of the Day to deliver shift-by-shift instructions to Operations crews Operations staff operates Injectors and RHIC Newer RHIC AP people on shift to provide expertise and learn about Operations RHIC AP staff available for assistance by phone 10/30/2014 WAO 2014 12
Planning by RHIC Machine Specialists provides for the most realistic estimates for timing of StartUp tasks personality management based on experience Allows Run Coordinator a much less intensive role during the first ~10 days of running, ease into their role while still being involved running the daily meeting RHIC Machine Specialists share role of leadership and are able to provide 24 hour coverage during the StartUp period without undue hardship Experienced AP personnel are off shift Newer AP personnel gain experience Operations shift crews empowered to make planning decisions when conflicts arise Operators can make great strides in knowledge during StartUp. Watching Doing!! 10/30/2014 WAO 2014 13
W. Fischer, BNL Boxed area indicates the new StartUp model in use (effectively for runs 11.5 and 12, officially for runs 13 & 14) 10/30/2014 WAO 2014 14
Run Coordinator notified of run 6/12 (always had been a very small possibility) Setup Plan created 6/13. Plan details 3 day s worth of work starting 6/16 and ending midnight 6/18 6/16 mode switch begins (12 hour maintenance period for some physical modifications to power supplies) Store for experimenter setup in place at 2200 6/18 10/30/2014 WAO 2014 15
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