Requirements for ESR Beam Time 2018

Further Reading

Requirements for 2018

  • Experiment requirements to be prepared by Sergey Litvinov and to be discussed during meeting with ESR machine coordinator
  • SIS->ESR Pattern Use Cases:
    20180621 103320 SIS ESR Pattern Use Cases.png

Options Discussed (Brainstorming)

SIS18 -> ESR, "Fire and Forget" Injection

Process Outline

  1. ESR is brought to injection level and stays there
  2. A "nonterminating / infinite" beam is requested from SIS18
  3. When ready beam is sent from SIS18 to ESR without any notification
  4. At ESR beam is "measured" and if requirments are met ...
  5. ... beam request from SIS18 is removed

Needed Development Outline

  1. Pre / Post Workaround is needed to bring ESR to injection level

SIS18 -> ESR, Injection with Notification

Process Outline

  1. ESR is brought to injection level and stays there
  2. A "one time" Beam is requested from SIS18
  3. When ready beam is sent from SIS18 to ESR
  4. Continuation of ESR pattern is triggered from SIS18 pattern (notification)

Needed Development Outline

  1. Pre / Post Workaround is needed to bring ESR to injection level
  2. Connecting unidirectional two timing cores (SIS18 Pattern modifies ESR Pattern to continue)

ESR -> SIS18 Request, SIS18-> ESR Notification

Process Outline

  1. "one time" Beam is requested for ESR
  2. ESR Pattern is started and ESR stays at injection level
  3. ESR Pattern triggers execution of SIS18->ESR injection pattern
  4. When ready beam is sent from SIS18 to ESR
  5. Continuation of ESR pattern is triggered from SIS18 pattern (notification)

Needed Development Outline

  1. Connecting bidirectional two timing cores (ESR Pattern modifies SIS18 Pattern to be executed, SIS18 Pattern modifies ESR Pattern to continue)

Pros and Cons

  Pro Con
SIS18 -> ESR, "Fire and Forget" Injection
  • No additional implementation needed
  • Manual start of ESR pattern
  • Injection to ESR possible by request (regardless what ESR is doing ATM)
  • No immediate actions possible depending on injection time (e.g. start to cool after injection event)
SIS18 -> ESR, Injection with Notification
  • Immediate actions possible after injection event (e.g. start cooling after injection)
  • Injection to ESR possible by request (regardless what ESR is doing ATM)
  • Additional implementation needed (coupling of patterns from different timing cores)
ESR -> SIS 18 Request, SIS 18-> ESR Notification  
  • A lot of additional implementation needed (probably not feasable for 2018)

Potential solutions

  • To be discussed during meeting with ESR machine coordinator

Next steps

  • To be discussed during meeting with ESR machine coordinator
Topic revision: r4 - 25 Jun 2018, RaphaelMueller
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