Beam current monitor calibrator for the Spallation Neutron Source

Author

Kesselman, M. ; Dawson, C. ; Smith, G.

Author_Institution

Brookhaven Nat. Lab., Upton NY, USA

Volume

4

fYear

2003

fDate

12-16 May 2003

Firstpage

2453

Abstract

The beam current monitor (BCM) system for the Spallation Neutron Source (SNS) to be installed at Oak Ridge National Laboratory (ORNL) requires an on-line calibrator to assure the system is appropriately scaling current. The calibration system must be able to handle the current range expected in the MEBT, Linac, HEBT, Ring and RTBT. This covers a dynamic range of 35ma to 50 amps. A 10-turn calibration winding has been included in all current transformers. This calibrator must provide adequate flexibility to assure the current transformers are not damaged by failures in the calibrator drive amplifier, and provide better than 1% accuracy with a capability to provide calibrated currents covering the dynamic range. This paper will address the design considerations and resulting design of a suitable calibrator for this system.

Keywords

beam handling techniques; calibration; nuclear electronics; particle beam diagnostics; physics computing; proton accelerators; storage rings; HEBT; Linac; MEBT; ORNL; Oak Ridge National Laboratory; RTBT; Ring; SNS; Spallation Neutron Source; beam current monitor calibrator system; calibrated currents; calibration winding; calibrator drive amplifier; current range; current transformers; dynamic range; on-line calibrator; scaling current; Calibration; Current transformers; Dynamic range; Instruments; Laboratories; Linear particle accelerator; Monitoring; Neutrons; Protection; Signal generators;

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.2003.1289151

Filename

1289151