[Triumf-seminars] TRIUMF Accelerator Seminar today at 14:00

[TRIUMF Seminars]

Date/Time: Wed 2015-11-18 at 14:00

Location:  ISAC II Conf Rm     

Speaker:   Yu-Chiu Chao (TRIUMF)

Title:     Distributed Matching Scheme and a Flexible Deterministic Matching Algorithm for Arbitrary Systems

Abstract: Paradigm complementary to conventional betatron matching is explored, with matching distributed across the entire line. This can have varying degrees of advantage depending on acuteness of issues in a conventional scheme:

- Limited flexibility and space constraint for matching section
- Neglect of beam property away from matching section
- Excessive envelope/magnet strength caused by matching (sub-optimal tradeoff)
- Local envelope blowup inside matching section
- Low tolerance to errors and lack of recourse to matching failure
- Slow computation process
- Unpredictable solution
- Limited option/insight/control on implementing solution.

A scheme was envisioned to address these issues, backed by a recently developed betatron matching algorithm tailored to this demand.  It can be applied to any beamline configuration, including coupled 4D or intervening elements, providing deterministic, rigorous solutions allowing insight and control before implementation. It also shows promise of obtaining global optimum. Combined with the distributed matching scheme this algorithm promises additional advantages of speed, determinism and user flexibility. Preliminary results, computational demands/challenges and possibilities for extension into other control problems will be discussed.  The second part of the talk will go into more technical details of the algorithm. 




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General TRIUMF seminar information available at http://www.triumf.ca/home/upcoming-events/about-seminars-lectures