IBIC2017 - List of Authors (Kuan, C.K.)

Paper	Title	Page
TUPCF07	The Design Improvement of Transverse Stripline Kickers in TPS Storage Ring	213
	P.J. Chou, C.K. Chan, C.-C. Chang, K.T. Hsu, K.H. Hu, C.K. Kuan, I.C. Sheng NSRRC, Hsinchu, Taiwan
	An improved design of horizontal stripline kicker for transverse feedback system has been replaced in January 2017. A rapid surge of vacuum pressure near the old horizontal kicker was observed when we tested the high current operation in TPS storage ring in April 2016. A burned vacuum feedthrough of the horizontal kicker was discovered during a maintenance shutdown. The improved design has reduced the reflection of the driving power from horizontal feedback system and the beam induced RF heating. Based on the experience learned from this improved design of horizontal stripline kicker, we also work out the improved design for the vertical kickers as well. The major modifications of the improved designs for both the horizontal and the vertical stripline kickers are described. The results of RF simulation performed with the electromagnetic code GdfidL are also reported.
	Poster TUPCF07 [0.785 MB]
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-IBIC2017-TUPCF07
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TUPCF08	Beam Stability Diagnostics with X-Ray Beam Position Monitor in the Taiwan Photon Source	217
	C.H. Huang, Y.-S. Cheng, P.C. Chiu, J. -Y. Chuang, Y.M. Hsiao, K.T. Hsu, K.H. Hu, C.K. Kuan, C.Y. Liao, Y.Z. Lin, C.Y. Wu NSRRC, Hsinchu, Taiwan
	To monitor the stability of photon beams, X-ray beam position monitors (BPMs) with quadrant PIN photodiodes or blades are installed in the beam lines and front ends. Although there are about 200 electron BPMs installed in the storage ring, the beam-line managers or users prefer X-ray BPMs to monitor beam stability. Among the beam lines, different electronics are used to acquire data at various sampling rates. A method to calculate the beam intensity fluctuation within different frequency ranges is described in this report. The results of calculations are shown in the control system and saved in the archive system thus helping to monitor and analyse beam quality on- and off-line. Initial experiences with this system will be discussed in this report.
	Poster TUPCF08 [0.687 MB]
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-IBIC2017-TUPCF08
Export •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

WEPCC12	Modification of the Synchrotron Radiation Interferometer at the Tps	377
	M.L. Chen, H.C. Ho, K.H. Hsu, D.-G. Huang, C.K. Kuan, W.Y. Lai, C.Y. Liao, C.J. Lin, S.Y. Perng, T.C. Tseng, H.S. Wang NSRRC, Hsinchu, Taiwan
	During TPS operation, the stability of beam size measurement with the synchrotron radiation interferometer (SRI) does not compare well with the older SRI at the TLS. Ground vibrations appear to transmit to the SRI optics. This paper describes how to reduce the effect of vibration and improve the system stability to improve the stability of the SRI beam size measurement dramatically. To enhance the SRI sensitivity, an intensity imbalance method is incorporated and its results are discussed.
	Poster WEPCC12 [0.291 MB]
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-IBIC2017-WEPCC12
Export •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

Paper

Title

Page

The Design Improvement of Transverse Stripline Kickers in TPS Storage Ring

213

P.J. Chou, C.K. Chan, C.-C. Chang, K.T. Hsu, K.H. Hu, C.K. Kuan, I.C. Sheng
NSRRC, Hsinchu, Taiwan

An improved design of horizontal stripline kicker for transverse feedback system has been replaced in January 2017. A rapid surge of vacuum pressure near the old horizontal kicker was observed when we tested the high current operation in TPS storage ring in April 2016. A burned vacuum feedthrough of the horizontal kicker was discovered during a maintenance shutdown. The improved design has reduced the reflection of the driving power from horizontal feedback system and the beam induced RF heating. Based on the experience learned from this improved design of horizontal stripline kicker, we also work out the improved design for the vertical kickers as well. The major modifications of the improved designs for both the horizontal and the vertical stripline kickers are described. The results of RF simulation performed with the electromagnetic code GdfidL are also reported.

Poster TUPCF07 [0.785 MB]

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-IBIC2017-TUPCF07

Export •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

TUPCF08

Beam Stability Diagnostics with X-Ray Beam Position Monitor in the Taiwan Photon Source

217

C.H. Huang, Y.-S. Cheng, P.C. Chiu, J. -Y. Chuang, Y.M. Hsiao, K.T. Hsu, K.H. Hu, C.K. Kuan, C.Y. Liao, Y.Z. Lin, C.Y. Wu
NSRRC, Hsinchu, Taiwan

To monitor the stability of photon beams, X-ray beam position monitors (BPMs) with quadrant PIN photodiodes or blades are installed in the beam lines and front ends. Although there are about 200 electron BPMs installed in the storage ring, the beam-line managers or users prefer X-ray BPMs to monitor beam stability. Among the beam lines, different electronics are used to acquire data at various sampling rates. A method to calculate the beam intensity fluctuation within different frequency ranges is described in this report. The results of calculations are shown in the control system and saved in the archive system thus helping to monitor and analyse beam quality on- and off-line. Initial experiences with this system will be discussed in this report.

Poster TUPCF08 [0.687 MB]

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-IBIC2017-TUPCF08

Export •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

WEPCC12

Modification of the Synchrotron Radiation Interferometer at the Tps

377

M.L. Chen, H.C. Ho, K.H. Hsu, D.-G. Huang, C.K. Kuan, W.Y. Lai, C.Y. Liao, C.J. Lin, S.Y. Perng, T.C. Tseng, H.S. Wang
NSRRC, Hsinchu, Taiwan

During TPS operation, the stability of beam size measurement with the synchrotron radiation interferometer (SRI) does not compare well with the older SRI at the TLS. Ground vibrations appear to transmit to the SRI optics. This paper describes how to reduce the effect of vibration and improve the system stability to improve the stability of the SRI beam size measurement dramatically. To enhance the SRI sensitivity, an intensity imbalance method is incorporated and its results are discussed.

Poster WEPCC12 [0.291 MB]

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-IBIC2017-WEPCC12

Export •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)