title: Shielding design for the PANDA spectrometer at the Munich high-flux reactor FRM-II.
abstract: The start-up of the Munich high-flux reactor FRM-II is in progress on. At the beam tube SR-2 the spectrometer PANDA has been installed. It is at three-axis neutron spectrometer looking onto a slightly under-moderated cold neutron source. For polarisation analysis, PANDA is equipped with a vertical cryomagnet producing fields up to 14.5 T for the sample. To get an appropriate shielding of the high-intensity instrument, one has to take into account the large cross section of the primary beam, several restrictions using magnetic materials, limitations in loading the site and finally, has to keep the lateral extent of the shielding small to allow for high-scattering angles. The shielding has been designed on the basis of the results, which were achieved by the combined use of both the Monte Carlo code MCNP-4B2 and an analytical method based on one-dimensional dose transmission functions.
authors.affiliation: Forschungszentrum Rossendorf, Postfach 510119, 01314 Dresden, Germany. K.Noack@fz-rossendorf.de
authors.forename: K
authors.initials: K
authors.lastname: Noack
authors.forename: N M
authors.initials: NM
authors.lastname: Pyka
authors.forename: A
authors.initials: A
authors.lastname: Rogov
authors.forename: E
authors.initials: E
authors.lastname: Steichele
mesh_terms: D003198:Computer Simulation; D017076:Computer-Aided Design; D004867:Equipment Design / Q000379:methods; D019544:Equipment Failure Analysis / Q000379:methods; D005160:Facility Design and Construction / Q000295:instrumentation / Q000379:methods; D005858:Germany; D015233:Models, Statistical; D009010:Monte Carlo Method; D009688:Nuclear Reactors / Q000295:instrumentation*; D011829:Radiation Dosage; D011834:Radiation Monitoring / Q000379:methods*; D011835:Radiation Protection / Q000295:instrumentation* / Q000379:methods; D011868:Radioisotopes / Q000032:analysis*; D018570:Risk Assessment / Q000379:methods; D012307:Risk Factors; D013057:Spectrum Analysis / Q000295:instrumentation*
chemical_list: D011868:Radioisotopes