1 nA beam position monitoring system
- 22 November 2002
- proceedings article
- Published by Institute of Electrical and Electronics Engineers (IEEE)
- Vol. 2, 2131-2133
- https://doi.org/10.1109/pac.1997.751131
Abstract
A system has been developed at Jefferson Lab for measuring transverse position of very low current beams delivered to the Experimental Hall B of the Continuous Electron Beam Accelerator Facility (CEBAF). At the heart of the system is a position sensitive cavity operating at 1497 MHz. The cavity utilizes a unique design which achieves a high sensitivity to beam position at a relatively low cavity Q. The cavity output RF signal is processed using a down-converter and a commercial lock- in amplifier operating at 100 kHz. The system interfaces with a VME based EPICS control system using the IEEE 488 bus. The main features of the system are simple and robust design, and wide dynamic range capable of handling beam currents from 1 nA to 1000 nA with an expected resolution better than 100 μm. This paper outlines the design of the system.Keywords
This publication has 2 references indexed in Scilit:
- CEBAF beam loss accountingPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2002
- Design, commissioning and operational results of wide dynamic range BPM switched electrode electronicsAIP Conference Proceedings, 1997