MEDSI2023 - List of Authors (Liu, Y.)

Paper	Title	Page
WEPPP044	Development of High Power Density Photon Absorber for Super-B Sections in SSRF	215
	Q. Tang, Y. Liu, Q.L. Zhang, Y.L. Zhao SARI-CAS, Pudong, Shanghai, People’s Republic of China C. Jin SKY Technology Development Co., Ltd. Chinese Academy of Sciences, Shengyang, People’s Republic of China
	There are two symmetrical standard bend sections been updated to super-bend sections in the storage of Shanghai Synchrotron Radiation Facility(SSRF). Photon absorbers made up of CuCrZr were used for absorbing radiation with very high power density in the super-bend sections. Meanwhile, CuCrZr absorbers were also used as beam chamber and pump port for the lattice of super-bend section is very compacted. The absorbing surface was designed as serrate structure in order to diminish the power density. CuCrZr was cold-forged before machining to enhance its strength, thermal conductivity and hardness. Friction welding is adopted for absorber fabrication to avoid the material properties of absorber deterioration. Rectangle flanges of absorbers were designed as step rather than knifer for vacuum seal. These high power density photon absorbers have been installed on the storage ring, both pressure and temperature being in accordance with design anticipation in the case of beam of 240 mA running.
	Poster WEPPP044 [1.597 MB]
DOI •	reference for this paper ※ doi:10.18429/JACoW-MEDSI2023-WEPPP044
About •	Received ※ 24 October 2023 — Revised ※ 05 November 2023 — Accepted ※ 08 November 2023 — Issued ※ 02 April 2024
Cite •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

WEPPP045	Particle-Free Engineering in SHINE Superconducting Linac Vacuum System	219
	Y.L. Zhao, Y. Liu, Y.F. Liu, Q. Tang, L. Yin SARI-CAS, Pudong, Shanghai, People’s Republic of China
	The Shanghai high-repetition-rate XFEL and extreme light facility (SHINE) is under design and construction. The linac of SHINE facility is superconducting accelerat-ing structures of high gradients, whose performance is closely related to the cleanliness of superconducting cavities. Therefore, the beam line vacuum system has extremely high requirement for particle free to avoid particles down to submicrometric scale. To control parti-cle contamination, particle-free environment has been built for cavity string assembly and other beam line vacuum components installation, clean assembly criteri-on has been established. Furthermore, the particle gener-ation of vacuum components (valve, pump, et al.) has been studied. Moreover, dedicated equipment and com-ponent (slow pumping & slow venting system, non-contact RF shielding bellow) have been developed for particle-free vacuum system.
	Poster WEPPP045 [1.429 MB]
DOI •	reference for this paper ※ doi:10.18429/JACoW-MEDSI2023-WEPPP045
About •	Received ※ 25 October 2023 — Revised ※ 05 November 2023 — Accepted ※ 08 November 2023 — Issued ※ 28 June 2024
Cite •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

Paper

Title

Page

Development of High Power Density Photon Absorber for Super-B Sections in SSRF

215

Q. Tang, Y. Liu, Q.L. Zhang, Y.L. Zhao
SARI-CAS, Pudong, Shanghai, People’s Republic of China
C. Jin
SKY Technology Development Co., Ltd. Chinese Academy of Sciences, Shengyang, People’s Republic of China

There are two symmetrical standard bend sections been updated to super-bend sections in the storage of Shanghai Synchrotron Radiation Facility(SSRF). Photon absorbers made up of CuCrZr were used for absorbing radiation with very high power density in the super-bend sections. Meanwhile, CuCrZr absorbers were also used as beam chamber and pump port for the lattice of super-bend section is very compacted. The absorbing surface was designed as serrate structure in order to diminish the power density. CuCrZr was cold-forged before machining to enhance its strength, thermal conductivity and hardness. Friction welding is adopted for absorber fabrication to avoid the material properties of absorber deterioration. Rectangle flanges of absorbers were designed as step rather than knifer for vacuum seal. These high power density photon absorbers have been installed on the storage ring, both pressure and temperature being in accordance with design anticipation in the case of beam of 240 mA running.

Poster WEPPP044 [1.597 MB]

DOI •

reference for this paper ※ doi:10.18429/JACoW-MEDSI2023-WEPPP044

About •

Received ※ 24 October 2023 — Revised ※ 05 November 2023 — Accepted ※ 08 November 2023 — Issued ※ 02 April 2024

Cite •

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

WEPPP045

Particle-Free Engineering in SHINE Superconducting Linac Vacuum System

219

Y.L. Zhao, Y. Liu, Y.F. Liu, Q. Tang, L. Yin
SARI-CAS, Pudong, Shanghai, People’s Republic of China

The Shanghai high-repetition-rate XFEL and extreme light facility (SHINE) is under design and construction. The linac of SHINE facility is superconducting accelerat-ing structures of high gradients, whose performance is closely related to the cleanliness of superconducting cavities. Therefore, the beam line vacuum system has extremely high requirement for particle free to avoid particles down to submicrometric scale. To control parti-cle contamination, particle-free environment has been built for cavity string assembly and other beam line vacuum components installation, clean assembly criteri-on has been established. Furthermore, the particle gener-ation of vacuum components (valve, pump, et al.) has been studied. Moreover, dedicated equipment and com-ponent (slow pumping & slow venting system, non-contact RF shielding bellow) have been developed for particle-free vacuum system.

Poster WEPPP045 [1.429 MB]

DOI •

reference for this paper ※ doi:10.18429/JACoW-MEDSI2023-WEPPP045

About •

Received ※ 25 October 2023 — Revised ※ 05 November 2023 — Accepted ※ 08 November 2023 — Issued ※ 28 June 2024

Cite •

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