title: Radiation safety impact for top-up operation at the NSRRC.
abstract: Radiation safety impact for the upcoming top-up operation at the National Synchrotron Radiation Research Center (NSRRC) has been investigated with emphasis on the consequence of injection efficiency. Keeping the storage ring at high stored current by frequent injections, the top-up operation will inevitably increase the radiation dose compared with that in the present decay mode, especially when the injection efficiency is low. In addition, significantly high level of radiation could stream through the ratchet wall openings during top-up injections while shutters are open. Therefore, a series of radiation safety analyses including calculations and measurements have been carried out to assess the feasibility of this mode on the prospective radiation protection. The paper summarises the evaluation and the corresponding action plans for radiation safety.
authors.affiliation: National Synchrotron Radiation Research Center, 101 Hsin-Ann Road, Hsinchu Science Park, Hsinchu 300, Taiwan, Republic of China. srj@nsrrc.org.tw
authors.forename: R J
authors.initials: RJ
authors.lastname: Sheu
authors.forename: J P
authors.initials: JP
authors.lastname: Wang
authors.forename: J
authors.initials: J
authors.lastname: Liu
authors.forename: C R
authors.initials: CR
authors.lastname: Chen
authors.forename: F D
authors.initials: FD
authors.lastname: Chang
authors.forename: S H
authors.initials: SH
authors.lastname: Jiang
mesh_terms: D002681:China; D003198:Computer Simulation; D008962:Models, Theoretical; D011829:Radiation Dosage; D011834:Radiation Monitoring / Q000379:methods*; D011835:Radiation Protection / Q000379:methods*; D018570:Risk Assessment / Q000379:methods*; D012307:Risk Factors; D017751:Safety Management / Q000379:methods*; D017356:Synchrotrons