IPAC2014 - List of Authors (Yang, C.S.)

Paper	Title	Page
MOPME079	The DC and AC Withstands Test for TPS Booster Injection Kicker	554
	Y.-H. Liu, C.K. Chan, C.-S. Chen, H.H. Chen, J.-R. Chen, Y.T. Huang, C.S. Yang NSRRC, Hsinchu, Taiwan
	TPS requires highly precise and stable pulsed magnets for top-up mode operation. One injection and two extraction in vacuum kicker magnets in the booster ring are designed and noticed to minimize driving voltage. The HV insulation for magnet itself and vacuum feedthrough need to be tested. A DC withstand voltage tester MUSASHI 3802 (Model: IP-701G) is used to test the DC breakdown voltage, which the maximum driving voltage is 37 kV. And the AC withstand voltage tester was also test the AC breakdown voltage. Thicker than 10 mm ceramic plate could effectively avoid the breakdown occurred with 37 kV DC charging. Thus HV withstand voltage will be higher in vacuum chamber and the insulation with HV will not be the problem.
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2014-MOPME079
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TUPRO108	Design and Performance of the TPS DC Septum Magnet	1301
	C.S. Yang, C.-H. Chang, Y.L. Chu, T.Y. Chung, C.-S. Hwang, F.-Y. Lin NSRRC, Hsinchu, Taiwan
	To decrease the loading on an AC septum magnet, a DC septum magnet was fabricated and applied to the extraction system of the booster ring at Taiwan Photon Source (TPS). The minimal gap is 16.44 mm; the core length is 800 mm and the pole width is 45 mm. The maximum peak field of the DC septum magnet is designed to be 0.95 T at 12 kA with 24-turn coils. The maximum bending angle of the electron beam passing through the septum magnet is 75.5 mrad. Because the electron beam would be perturbed by the leakage field from the septum magnet, shielding between the septum magnet and the booster ring is an important issue for the operation of the beam. Here we report the shielding method with two materials of the DC septum magnet, and discuss the field mapping and shielding from the leakage field.
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2014-TUPRO108
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WEPRO014	The Installations of the In-vacuum Kicker System of the Booster Injection Section in TPS	1971
	C.S. Chen, C.K. Chan, K.H. Hsu, Y.T. Huang, Y.-H. Liu, C.S. Yang NSRRC, Hsinchu, Taiwan
	The installations of the In-Vacuum kicker system of the booster injection in TPS are presented in this article. Due to the more than 20 kV operation voltages and precise positioning requirements, the insulations and positioning systems are designed with more attentions. Although increasing the gap between high potential parts and ground could provide enough withstanding voltage, on the other hand, the insufficient space and vacuum requirements limit the sizes of insulators. Therefore, lots of effort have been done to deal with these conflicts. All assembling processes will be described in this paper as well.
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2014-WEPRO014
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Paper

Title

Page

The DC and AC Withstands Test for TPS Booster Injection Kicker

554

Y.-H. Liu, C.K. Chan, C.-S. Chen, H.H. Chen, J.-R. Chen, Y.T. Huang, C.S. Yang
NSRRC, Hsinchu, Taiwan

TPS requires highly precise and stable pulsed magnets for top-up mode operation. One injection and two extraction in vacuum kicker magnets in the booster ring are designed and noticed to minimize driving voltage. The HV insulation for magnet itself and vacuum feedthrough need to be tested. A DC withstand voltage tester MUSASHI 3802 (Model: IP-701G) is used to test the DC breakdown voltage, which the maximum driving voltage is 37 kV. And the AC withstand voltage tester was also test the AC breakdown voltage. Thicker than 10 mm ceramic plate could effectively avoid the breakdown occurred with 37 kV DC charging. Thus HV withstand voltage will be higher in vacuum chamber and the insulation with HV will not be the problem.

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2014-MOPME079

Export •

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

TUPRO108

Design and Performance of the TPS DC Septum Magnet

1301

C.S. Yang, C.-H. Chang, Y.L. Chu, T.Y. Chung, C.-S. Hwang, F.-Y. Lin
NSRRC, Hsinchu, Taiwan

To decrease the loading on an AC septum magnet, a DC septum magnet was fabricated and applied to the extraction system of the booster ring at Taiwan Photon Source (TPS). The minimal gap is 16.44 mm; the core length is 800 mm and the pole width is 45 mm. The maximum peak field of the DC septum magnet is designed to be 0.95 T at 12 kA with 24-turn coils. The maximum bending angle of the electron beam passing through the septum magnet is 75.5 mrad. Because the electron beam would be perturbed by the leakage field from the septum magnet, shielding between the septum magnet and the booster ring is an important issue for the operation of the beam. Here we report the shielding method with two materials of the DC septum magnet, and discuss the field mapping and shielding from the leakage field.

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2014-TUPRO108

Export •

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

WEPRO014

The Installations of the In-vacuum Kicker System of the Booster Injection Section in TPS

1971

C.S. Chen, C.K. Chan, K.H. Hsu, Y.T. Huang, Y.-H. Liu, C.S. Yang
NSRRC, Hsinchu, Taiwan

The installations of the In-Vacuum kicker system of the booster injection in TPS are presented in this article. Due to the more than 20 kV operation voltages and precise positioning requirements, the insulations and positioning systems are designed with more attentions. Although increasing the gap between high potential parts and ground could provide enough withstanding voltage, on the other hand, the insufficient space and vacuum requirements limit the sizes of insulators. Therefore, lots of effort have been done to deal with these conflicts. All assembling processes will be described in this paper as well.

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2014-WEPRO014

Export •

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