IPAC2012 - List of Authors (Lv, J.J.)

Paper	Title	Page
THPPR023	Radiation Shielding Design for Dream-Line Beamline at SSRF	4011
	J.Q. Xu, L.X. Liu, J.J. Lv, Y. Sheng, X. Xia SINAP, Shanghai, People's Republic of China
	The dream-line beamline at Shanghai Synchrotron Radiation Facility, SSRF, is an under construction soft X-ray beam line with a wide energy range and super high energy resolution. It is required to allow online operation beside optical components in the experiment hutch at this beamline when synchrotron light is running. This requires more careful radiation shielding design for the beamline. The radiation shielding designs for the beamline are considered to shield gas bremsstrahlung and synchrotron. Ray tracing was carried out according to the beamline structure and optical components layout. The residual gas bremsstrahlung with optical components and the induced dose rate distribution were simulated with the Fluka code. The synchrotron radiation scattering at optical components was calculated with the STAC08 code. With the simulated results, the specifications of shielding collimators, safety shutters, and hutch wall are given for the beamline. The normalized dose rate results by gas bremsstrahlung are consisted with the measurements or calculations results in other facilities in the world very well. * Corresponding author: xiaxiaobin@sinap.ac.cn

THPPR024	Upgrade of Radiation Monitoring System at SSRF for Top-up Operation	4014
	X. Xia, J. Chen, J.J. Lv, W. Shen, T. Wan, W.F. Wu, X.J. Xu, H. Zhao SINAP, Shanghai, People's Republic of China
	The radiation monitoring system (RMS) at Shanghai Synchrotron Radiation Facility, SSRF, is required to upgrade to have dose interlock functions for top-up operation as an important safety issue. This paper describes the basic requirements, design criteria, signal network, and functions of the upgraded radiation monitoring system. Both the prompt dose rate and the accumulative dose alarm were archived for the safety issue after the upgrade. The reliability and stability of the upgraded RMS are in testing for getting operation permission from authority for radiation safety issue.

Paper

Title

Page

Radiation Shielding Design for Dream-Line Beamline at SSRF

4011

J.Q. Xu, L.X. Liu, J.J. Lv, Y. Sheng, X. Xia
SINAP, Shanghai, People's Republic of China

The dream-line beamline at Shanghai Synchrotron Radiation Facility, SSRF, is an under construction soft X-ray beam line with a wide energy range and super high energy resolution. It is required to allow online operation beside optical components in the experiment hutch at this beamline when synchrotron light is running. This requires more careful radiation shielding design for the beamline. The radiation shielding designs for the beamline are considered to shield gas bremsstrahlung and synchrotron. Ray tracing was carried out according to the beamline structure and optical components layout. The residual gas bremsstrahlung with optical components and the induced dose rate distribution were simulated with the Fluka code. The synchrotron radiation scattering at optical components was calculated with the STAC08 code. With the simulated results, the specifications of shielding collimators, safety shutters, and hutch wall are given for the beamline. The normalized dose rate results by gas bremsstrahlung are consisted with the measurements or calculations results in other facilities in the world very well.
* Corresponding author: xiaxiaobin@sinap.ac.cn

THPPR024

Upgrade of Radiation Monitoring System at SSRF for Top-up Operation

4014

X. Xia, J. Chen, J.J. Lv, W. Shen, T. Wan, W.F. Wu, X.J. Xu, H. Zhao
SINAP, Shanghai, People's Republic of China

The radiation monitoring system (RMS) at Shanghai Synchrotron Radiation Facility, SSRF, is required to upgrade to have dose interlock functions for top-up operation as an important safety issue. This paper describes the basic requirements, design criteria, signal network, and functions of the upgraded radiation monitoring system. Both the prompt dose rate and the accumulative dose alarm were archived for the safety issue after the upgrade. The reliability and stability of the upgraded RMS are in testing for getting operation permission from authority for radiation safety issue.