Accession Number:

AD0781018

Title:

Fast Retrace of Particle Orbits Through a Large Inhomogeneous Magnetic Field,

Descriptive Note:

Corporate Author:

NATIONAL RESEARCH COUNCIL OF CANADA OTTAWA (ONTARIO) DIV OF PHYSICS

Personal Author(s):

Report Date:

1973-06-08

Pagination or Media Count:

7.0

Abstract:

A fast method of retracing orbits through a large, inhomogeneous magnetic field has been developed for applications in particle-physics experiments. The momenta of particles are found by simple linear interpolation in a mesh of previously calculated representative orbits. The essential feature of the scheme is to perform a transformation on the set of observables defining the orbit before doing the interpolation. This is done to reduce both interpolation errors and the required number of mesh points. A detailed development of the method is presented for an actual apparatus. For this apparatus particles were retraced in 0.6 msorbit using a CDC 6600 computer, and for 100 mesh points interpolation errors were found to be smaller than experimental errors by more than an order of magnitude. Author

Subject Categories:

  • Particle Accelerators

Distribution Statement:

APPROVED FOR PUBLIC RELEASE