title: Preliminary shielding assessment for the 100 MeV proton linac (KOMAC).
abstract: The Proton Engineering Frontier Project is building the Korea Multipurpose Accelerator Complex facilities from 2002 to 2012, which consists of a high-current 100 MeV proton linear accelerator and various beam-lines. This paper provides a preliminary estimate of the shielding required for the 20 mA proton linac and the beam-dump. For an accurate information on secondary neutron production from the guiding magnet and primary heat sink of the beam dump, proton-induced 63Cu and 65Cu cross section data were evaluated and applied to shielding calculations. The required thickness of the concrete was assessed by a simple line-of-sight model for the lateral shielding of the beam-line and the full shielding of the beam dump. Monte Carlo simulations were also performed using the MCNPX code to obtain the source term and attenuation coefficients for the three-dimensional lateral shielding model of the beam-line.
authors.affiliation: Korea Atomic Energy Research Institute, Dukjin-Dong 150, Daejon, Korea. yolee@kaeri.re.kr
authors.forename: Young-Ouk
authors.initials: YO
authors.lastname: Lee
authors.forename: Y S
authors.initials: YS
authors.lastname: Cho
authors.forename: J
authors.initials: J
authors.lastname: Chang
mesh_terms: D003198:Computer Simulation; D017076:Computer-Aided Design; D005160:Facility Design and Construction / Q000379:methods*; D007723:Korea; D015233:Models, Statistical; D009010:Monte Carlo Method; D010315:Particle Accelerators / Q000295:instrumentation*; D011522:Protons; D011829:Radiation Dosage; D011834:Radiation Monitoring / Q000295:instrumentation / Q000379:methods*; D011835:Radiation Protection / Q000295:instrumentation* / Q000379:methods; D018570:Risk Assessment / Q000379:methods; D012307:Risk Factors; D012984:Software; D012986:Software Validation
chemical_list: D011522:Protons