IBIC2012 - List of Authors (Chen, J.-R.)

Paper	Title	Page
MOPB88	Beam Size Monitor for TPS	291
	C.K. Kuan, S.Y. Perng, I.C. Sheng, T.C. Tseng NSRRC, Hsinchu, Taiwan J.-R. Chen National Tsing Hua University, Hsinchu, Taiwan
	The third-generation light source TPS is under construction in NSRRC. There are two diagnostic beamlines in the storage ring. Visible SR interferometers and X-ray pinhole cameras are widely used to measure the transverse beam profile in synchrotron light sources. In phase-I we will adopt the two methods to be the beam size monitor. The visible SR interferometer uses a double slit to obtain one-dimensional interference pattern along the horizontal or vertical axis. The simple X-ray pinhole camera is designed for the measurement of the size, the emittance and energy spread of the electron beam. In this paper we present the design and calculation of the two beam size monitors for TPS.

MOPA21	Improvement of the SIAM Photon Source Storage Ring BPM System	101
	S. Klinkhieo, S. Boonsuya, P. Klysubun, S. Krainara, P. Songsiriritthigul, P. Sudmuang, N. Suradet, S. Tesprasitte SLRI, Nakhon Ratchasima, Thailand J.-R. Chen, H.P. Hsueh, Y.-H. Liu NSRRC, Hsinchu, Taiwan
	This report describes the improvement of the Beam Position Monitoring (BPM) systems for the 1.2 GeV storage ring of the Siam Photon Source (SPS). The systematic studies and investigations for improving the machine performance, and storage ring BPM system has been carried out in the last few years. Some major technical problems have been found and solved. The inefficiency and unreliability of the original BPM system were also identified. They are mainly caused due to the use of low quality signal and improper installation of cables. Detailed descriptions of the replacement with the higher quality (lower loss and better interference shielding) BPM cables and implementation of a separated cable trays for the BPM cables, as well as the work on BPM electronic board calibration will be described. The measurement results before and after the improvement of the BPM system will also be presented.

Paper

Title

Page

Beam Size Monitor for TPS

291

C.K. Kuan, S.Y. Perng, I.C. Sheng, T.C. Tseng
NSRRC, Hsinchu, Taiwan
J.-R. Chen
National Tsing Hua University, Hsinchu, Taiwan

The third-generation light source TPS is under construction in NSRRC. There are two diagnostic beamlines in the storage ring. Visible SR interferometers and X-ray pinhole cameras are widely used to measure the transverse beam profile in synchrotron light sources. In phase-I we will adopt the two methods to be the beam size monitor. The visible SR interferometer uses a double slit to obtain one-dimensional interference pattern along the horizontal or vertical axis. The simple X-ray pinhole camera is designed for the measurement of the size, the emittance and energy spread of the electron beam. In this paper we present the design and calculation of the two beam size monitors for TPS.

MOPA21

Improvement of the SIAM Photon Source Storage Ring BPM System

101

S. Klinkhieo, S. Boonsuya, P. Klysubun, S. Krainara, P. Songsiriritthigul, P. Sudmuang, N. Suradet, S. Tesprasitte
SLRI, Nakhon Ratchasima, Thailand
J.-R. Chen, H.P. Hsueh, Y.-H. Liu
NSRRC, Hsinchu, Taiwan

This report describes the improvement of the Beam Position Monitoring (BPM) systems for the 1.2 GeV storage ring of the Siam Photon Source (SPS). The systematic studies and investigations for improving the machine performance, and storage ring BPM system has been carried out in the last few years. Some major technical problems have been found and solved. The inefficiency and unreliability of the original BPM system were also identified. They are mainly caused due to the use of low quality signal and improper installation of cables. Detailed descriptions of the replacement with the higher quality (lower loss and better interference shielding) BPM cables and implementation of a separated cable trays for the BPM cables, as well as the work on BPM electronic board calibration will be described. The measurement results before and after the improvement of the BPM system will also be presented.