Speaker
Description
The 4
In previous work, bulk shielding calculations were performed using the semi-empirical SHIELD11 code [1]. This work used FLUKA to accurately determine SR tunnel shielding structure, assuming a 90% injection efficiency into SR at 4 mA/2min. Electron beam loss scenarios were divided into two types normal and abnormal losses. Since electron beam injection from Linac to booster, beam extraction from booster, and injection from booster to SR are close to each other, shielding calculations were classified into injection and non-injection areas, where specific thicknesses considered for each area. In injection area, normal operation beam loss scenarios included uniform beam loss over SR and booster ring, as well as losses at injection and extraction septa between Linac, booster, and SR. The total dose rate was calculated by summing the dose rates from these scenarios. FLUKA results confirmed that tunnel shielding structure effectively keeps the dose rate within dose limits.
Appropriate shielding criteria were determined based on Nuclear Safety Act in Korea and the ALARA principle. These simulations aim to provide an overall radiological framework for shielding the 4
This research was supported in part by the Korean Government MSIT (Multipurpose Synchrotron Radiation Construction Project).
[1] N. S. Jung, Radiation Shielding Evaluation of 4
Contribution track | ICABU WG1. Accelerator Systems |
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Paper submission Plan | Yes |
Best Presentation | No |