Beam-based BPM alignment

Author

Talman, R. ; Malitsky, N.

Author_Institution

Collider Accel. Dev. Dept., Brookhaven Nat. Lab., Upton, NY, USA

Volume

5

fYear

2003

fDate

12-16 May 2003

Firstpage

2919

Abstract

An operational, beam-based, -measurement, control room procedure designed to steer the closed orbit through the effective (no steer) center of every quadrupole is described. Performance of the procedure is simulated using UAL (Unified Accelerator Libraries). Matching SNS hardware availability, quadrupole strengths are assumed to be trimmable, but only in families, not individually. The accuracy of the procedure is unaffected by geometric and/or electrical misalignment of BPM´s (beam position monitors) but calibration of their misalignments is a byproduct of the procedure. Some of the many possible failure mechanisms have been modeled, and have been found not to invalidate the procedure.

Keywords

particle beam diagnostics; particle beam dynamics; proton accelerators; storage rings; SNS hardware matching; UAL; Unified Accelerator Libraries; beam position monitors; beam-based BPM alignment; control room procedure; failure mechanisms; quadrupole; Availability; Calibration; Colliding beam accelerators; Extraterrestrial measurements; Laboratories; Libraries; Neodymium; Neutrons; Packaging; Smoothing methods;

fLanguage

English

Publisher

ieee

Conference_Titel

Particle Accelerator Conference, 2003. PAC 2003. Proceedings of the

ISSN

1063-3928

Print_ISBN

0-7803-7738-9

Type

conf

DOI

10.1109/PAC.2003.1289766

Filename

1289766