Skip to content

GitLab

  • Projects
  • Groups
  • Snippets
  • Help
    • Loading...
  • Help
    • Help
    • Support
    • Community forum
    • Submit feedback
  • Sign in
S src
  • Project overview
    • Project overview
    • Details
    • Activity
    • Releases
  • Repository
    • Repository
    • Files
    • Commits
    • Branches
    • Tags
    • Contributors
    • Graph
    • Compare
    • Locked Files
  • Issues 62
    • Issues 62
    • List
    • Boards
    • Labels
    • Service Desk
    • Milestones
    • Iterations
  • Merge requests 4
    • Merge requests 4
  • CI/CD
    • CI/CD
    • Pipelines
    • Jobs
    • Schedules
  • Operations
    • Operations
    • Incidents
    • Environments
  • Analytics
    • Analytics
    • CI/CD
    • Code Review
    • Issue
    • Repository
    • Value Stream
  • Wiki
    • Wiki
  • Snippets
    • Snippets
  • Members
    • Members
  • Activity
  • Graph
  • Create a new issue
  • Jobs
  • Commits
  • Issue Boards
Collapse sidebar
  • OPAL
  • src
  • Issues
  • #183

Closed
Open
Created Nov 20, 2017 by kraus@krausDeveloper

Attributes PC, ENERGY and GAMMA of BEAM command not described

There are several possible definitions for PC

  1. PC = mc^2 \frac{\sqrt{\sum_i p_{x,i}^2 + p_{y,i}^2 + p_{z,i}^2}}{N}
  2. PC = mc^2 \frac{\sum_i p_{z,i}}{N}

Currently the second definition is implemented. This has the advantage that mean longitudinal momentum is well defined and thereby the reference particle has the same velocity as the centroid. The disadvantage is that the kinematic energy of the bunch is to high. The definition for PC should be chosen and the two attributes should be described in the manual for 1.6 and 1.9.

Edited Nov 21, 2017 by snuverink_j
Assignee
Assign to
None
Milestone
None
Assign milestone
Time tracking