IPAC2015 - List of Authors (Kuan, C.K.)

Paper	Title	Page
MOPTY074	Preliminary Beam Test of Synchrotron Radiation Monitoring System at Taiwan Photon Source	1109
	C.Y. Liao, Y.-S. Cheng, J. -Y. Chuang, K.T. Hsu, S.Y. Hsu, H.P. Hsueh, K.H. Hu, C.K. Kuan, C.Y. Wu NSRRC, Hsinchu, Taiwan
	Taiwan Photon Source (TPS) is a third generation 3 GeV synchrotron light facility. The synchrotron radiation from a dipole can be used to observe the beam parameters. The synchrotron radiation monitor (SRM) systems were designed and implemented for the booster synchrotron and storage ring. The SRM for the booster synchrotron can serve to diagnose the energy ramping process. The beam size decreases when the energy increases was observed. In the storage ring, the streak camera was preferred to observe the beam behaviour of the consecutive bunches. The bunch length and longitudinal instability were observed. The preliminary beam test results are summarized in this report.
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2015-MOPTY074
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MOPTY079	The Installation and Operation of TPS Laser PSD System in TPS Storage Ring	1123
	M.L. Chen, J.-R. Chen, P.S.D. Chuang, H.C. Ho, K.H. Hsu, D.-G. Huang, C.K. Kuan, W.Y. Lai, C.J. Lin, S.Y. Perng, T.C. Tseng, H.S. Wang NSRRC, Hsinchu, Taiwan
	24 sets of Laser PSD positioning system are parts of the TPS girder auto¬alignment system. Laser PSD positioning systems are installed in the straight¬ section girders of TPS storage ring. The Laser PSD systems are assembled and calibrated in the Lab beforehand. The Laser and PSDs are assembled on girder and transported to TPS storage ring and Installed. During construction the system deviates from the normal position caused by variant temperature and external influence. For absolute position precision, another laser calibration system should be built to recalibrate the laser PSD system. This paper describes the installation of Laser PSD system in TPS storage ring and the status of the PSD system. A new absolute position calibration method for precision upgrade is also discussed.
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2015-MOPTY079
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WEPHA044	Alignment Design and Status of Taiwan Photon Source	3212
	W.Y. Lai, M.L. Chen, P.S.D. Chuang, H.C. Ho, K.H. Hsu, D.-G. Huang, C.K. Kuan, C.J. Lin, S.Y. Perng, T.C. Tseng, H.S. Wang NSRRC, Hsinchu, Taiwan
	After the construction of Taiwan Photon Source (TPS) was finished, the variation of the survey fiducials was stable. However, the following precise alignment work is concerned by the change of temperature critically. In this paper, the whole process of alignment work in the TPS storage ring with the relation of survey network and thermal issues of the environment will be described. We analysed these survey data so that the correction of survey network could be estimated by the change of temperature, thus all the elements for example, booster, pedestals, and girders could be positioned within the shortest time.
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2015-WEPHA044
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WEPHA048	Behavior of Vacuum Pressure in TPS Vacuum System	3222
	I.C. Yang, C.K. Chan, C.-C. Chang, B.Y. Chen, J.-R. Chen, C.M. Cheng, J. -Y. Chuang, G.-Y. Hsiung, C.K. Kuan, C.C. Liang, I.C. Sheng, L.H. Wu NSRRC, Hsinchu, Taiwan
	Taiwan Photon source (TPS) is in its first stage commissioning in 2014-2015. The vacuum systems of TPS were installed for commissioning since August 2014. After four months performance testing and subsystem integration, the commissioning of booster ring began on 12 December and then the first 3 GeV beam was stored on 31 December. 100mA beam current, 35Ah accumulated beam dose was archived in March 2015 before machine shut down. The average pressure in storage ring is 2.8×10^-8 Pa before commissioning, rising to 1.33×10-7 Pa with 100mA beam current. In 35Ah accumulated beam dose, the target of beam cleaning effect has reached to 8.92×10-10 Pa/mA. The vacuum performance, experience and events during commissioning will be presented in this paper.
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2015-WEPHA048
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WEPHA049	Demagnetize Booster Chamber in TPS	3225
	I.C. Sheng, C.-T. Chen, C.K. Kuan, I.C. Yang NSRRC, Hsinchu, Taiwan
	Taiwan Photon Source (TPS) project starts its booster commissioning starts from August 2014. Few issues have been discovered and fixed. Since the booster aperture is relatively small and number of magnets is barely sufficient. Therefore extreme precise control of booster chamber alignment and the corresponding chamber permeability is as well important. In this paper, we present how the booster chamber is uninstalled, demagnetized and reinstalled within three weeks. This procedure is proven to result in the lowest booster chamber permeability in the world and a good high vacuum booster ring is built in 3 weeks.
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2015-WEPHA049
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THYB2	The Auto-Alignment Girder System of TPS Storage Ring	3649
	T.C. Tseng, J.-R. Chen, M.L. Chen, P.S.D. Chuang, H.C. Ho, K.H. Hsu, D.-G. Huang, C.K. Kuan, W.Y. Lai, C.-S. Lin, C.J. Lin, S.Y. Perng, C.W. Tsai, H.S. Wang NSRRC, Hsinchu, Taiwan
	To meet the stringent beam dynamic specs of TPS with high brilliance and low emittance characteristics, also to align the girders precisely and quickly with less manpower, the girder system for TPS (Taiwan Photon Source) storage ring is of an auto-tuning design. Each girder can be fine adjusted in 6 axes with 6 motorized cam movers of kinematic mounting design on 3 pedestals. With sensors between each girder, there are 72 girders to make up a whole ring auto-alignment girder system. All the sub-systems were carefully assembled and calibrated in a rented factory outside NSRRC during the civil construction period. Mock-up systems were set up and the auto–alignment processes were examined to modify interferences or mistakes between sub-systems. After the TPS building was nearly completed, the laser tracker alignment network was set up first and then the installation took place. When all the girders and sensors were installed into the tunnel, the auto-alignment procedures were carried out to fine tune all the girders. This paper describes the design, preparation, installation and implementation of this auto-alignment girder system for TPS storage ring.
	Slides THYB2 [9.476 MB]
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2015-THYB2
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Paper

Title

Page

Preliminary Beam Test of Synchrotron Radiation Monitoring System at Taiwan Photon Source

1109

C.Y. Liao, Y.-S. Cheng, J. -Y. Chuang, K.T. Hsu, S.Y. Hsu, H.P. Hsueh, K.H. Hu, C.K. Kuan, C.Y. Wu
NSRRC, Hsinchu, Taiwan

Taiwan Photon Source (TPS) is a third generation 3 GeV synchrotron light facility. The synchrotron radiation from a dipole can be used to observe the beam parameters. The synchrotron radiation monitor (SRM) systems were designed and implemented for the booster synchrotron and storage ring. The SRM for the booster synchrotron can serve to diagnose the energy ramping process. The beam size decreases when the energy increases was observed. In the storage ring, the streak camera was preferred to observe the beam behaviour of the consecutive bunches. The bunch length and longitudinal instability were observed. The preliminary beam test results are summarized in this report.

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2015-MOPTY074

Export •

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

MOPTY079

The Installation and Operation of TPS Laser PSD System in TPS Storage Ring

1123

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

24 sets of Laser PSD positioning system are parts of the TPS girder auto¬alignment system. Laser PSD positioning systems are installed in the straight¬ section girders of TPS storage ring. The Laser PSD systems are assembled and calibrated in the Lab beforehand. The Laser and PSDs are assembled on girder and transported to TPS storage ring and Installed. During construction the system deviates from the normal position caused by variant temperature and external influence. For absolute position precision, another laser calibration system should be built to recalibrate the laser PSD system. This paper describes the installation of Laser PSD system in TPS storage ring and the status of the PSD system. A new absolute position calibration method for precision upgrade is also discussed.

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2015-MOPTY079

Export •

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

WEPHA044

Alignment Design and Status of Taiwan Photon Source

3212

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

After the construction of Taiwan Photon Source (TPS) was finished, the variation of the survey fiducials was stable. However, the following precise alignment work is concerned by the change of temperature critically. In this paper, the whole process of alignment work in the TPS storage ring with the relation of survey network and thermal issues of the environment will be described. We analysed these survey data so that the correction of survey network could be estimated by the change of temperature, thus all the elements for example, booster, pedestals, and girders could be positioned within the shortest time.

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2015-WEPHA044

Export •

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

WEPHA048

Behavior of Vacuum Pressure in TPS Vacuum System

3222

I.C. Yang, C.K. Chan, C.-C. Chang, B.Y. Chen, J.-R. Chen, C.M. Cheng, J. -Y. Chuang, G.-Y. Hsiung, C.K. Kuan, C.C. Liang, I.C. Sheng, L.H. Wu
NSRRC, Hsinchu, Taiwan

Taiwan Photon source (TPS) is in its first stage commissioning in 2014-2015. The vacuum systems of TPS were installed for commissioning since August 2014. After four months performance testing and subsystem integration, the commissioning of booster ring began on 12 December and then the first 3 GeV beam was stored on 31 December. 100mA beam current, 35Ah accumulated beam dose was archived in March 2015 before machine shut down. The average pressure in storage ring is 2.8×10^-8 Pa before commissioning, rising to 1.33×10-7 Pa with 100mA beam current. In 35Ah accumulated beam dose, the target of beam cleaning effect has reached to 8.92×10-10 Pa/mA. The vacuum performance, experience and events during commissioning will be presented in this paper.

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2015-WEPHA048

Export •

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

WEPHA049

Demagnetize Booster Chamber in TPS

3225

I.C. Sheng, C.-T. Chen, C.K. Kuan, I.C. Yang
NSRRC, Hsinchu, Taiwan

Taiwan Photon Source (TPS) project starts its booster commissioning starts from August 2014. Few issues have been discovered and fixed. Since the booster aperture is relatively small and number of magnets is barely sufficient. Therefore extreme precise control of booster chamber alignment and the corresponding chamber permeability is as well important. In this paper, we present how the booster chamber is uninstalled, demagnetized and reinstalled within three weeks. This procedure is proven to result in the lowest booster chamber permeability in the world and a good high vacuum booster ring is built in 3 weeks.

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2015-WEPHA049

Export •

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

THYB2

The Auto-Alignment Girder System of TPS Storage Ring

3649

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

To meet the stringent beam dynamic specs of TPS with high brilliance and low emittance characteristics, also to align the girders precisely and quickly with less manpower, the girder system for TPS (Taiwan Photon Source) storage ring is of an auto-tuning design. Each girder can be fine adjusted in 6 axes with 6 motorized cam movers of kinematic mounting design on 3 pedestals. With sensors between each girder, there are 72 girders to make up a whole ring auto-alignment girder system. All the sub-systems were carefully assembled and calibrated in a rented factory outside NSRRC during the civil construction period. Mock-up systems were set up and the auto–alignment processes were examined to modify interferences or mistakes between sub-systems. After the TPS building was nearly completed, the laser tracker alignment network was set up first and then the installation took place. When all the girders and sensors were installed into the tunnel, the auto-alignment procedures were carried out to fine tune all the girders. This paper describes the design, preparation, installation and implementation of this auto-alignment girder system for TPS storage ring.

Slides THYB2 [9.476 MB]

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2015-THYB2

Export •

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