The Development of Low-Q Cavity Type Beam Position Monitor with Position Resolution of Nanometer

by Siwon Jang (Ph.D Candidate)

Friday May 22, 2015, 1:00 PM → 2:00 PM Asia/Seoul

210-4호 (제1과학관)

The Beam Position Monitor (BPM) with a position resolution on the nanometer scale and a decay time of approximately 20 ns is needed to control the beam trains at the interaction points (IP) of the Accelerator Test Facility(ATF). To achieve such goals, we developed a low-Q cavity BPM system consisting of a three sensor cavity and a two-cell reference cavity. Based on the result of the beam tests, an electronics system was also developed to process the signals from the BPM. The beam position resolution of the low-Q cavity BPM with the electronics system was measured at the ATF2 beam line at KEK. This paper describes the development of low-Q cavity BPM and the results of the beam tests by using the developed low-Q cavity BPM.

Thesis Advisor: Prof. Eun-San Kim