This paper presents comparison of the Krško Power Plant simplified Spent Fuel Pool (SFP) dose rates using different computational shielding methodologies. The analysis was performed to estimate limiting gamma on wall mounted level instrumentation in case significant loss cooling water. SFP represented with simple homogenized cylinders (point kernel and Monte Carlo (MC)) or cuboids (MC) uranium,...

Anthropometric and anthropomorphic phantoms have been used extensively for characterizing in-vivo measurement systems that determines internally deposited radionuclides. The accuracy in activity determination relies critically on system design, calibration routine, and reproducbility in material composition, geometry configuration, and physical dimensions of the phantoms respect to the actual o...

In reactor calculations, a detailed 3-D power density distribution is required for core optimization studies and safety analyses. The general Monte Carlo based neutral particle transport tool, MCNP [1], has the capability to obtain detailed power density distribution in a reactor through its criticality calculation mode (KCODE mode). However, there is no standard tally type in MCNP that is able...

The present paper focuses on the modeling of CROCUS reactor with French MORET 5 continuous energy code and compares keff, anti-reactivity effects (variation keff normalized to due insertion an absorber), sensitivity coefficients kinetics parameters those provided by other reference codes. aim is mainly extend experimental validation/verification database use physics applications. A suite about ...

In this study, Gxsview (Geometry and CROSS Section VIEWer), which is a stand-alone multi-platform integrated visualization tool for 3D geometry, 2D cross section, input file, was developed. Its geometry engine covers almost all geometric features used in the major Monte Carlo radiation transport code, PHITS MCNP, supporting nested universe, fill, lattice, like-but, complement functions. The vie...

Three different samples were synthesized based on polyepoxide resin, a solidifying agent, and Bi2O3 doping compound. The resin agent added in 2:1 ratio by weight the compound was ratios of 0, 5, 10 wt. %. density composites measured using an MH-300A densimeter with uncertainty measurement 0.001 g/cm3. measurements showed that fabricated composite varied from 1.103 g/cm3 to 1.20 when reinforcing...

To enhance the production of short-lived isotopes, higher beam powers are sought, which require targets able to accommodate them. One such target prototype is a liquid metal LIEBE, developed at CERN. In this paper, simulation proton interaction with LIEBE presented. Simulations were performed by series transport calculations using MCNP Monte Carlo code. The latest input was created in high-fide...

Article history: Received 8 October 2008 Received in revised form 19 November 2008 Accepted 19 November 2008 Available online 12 January 2009 0306-4549/$ see front matter 2008 Elsevier Ltd. A doi:10.1016/j.anucene.2008.11.023 * Corresponding author. Tel.: +1 734 615 7830; fax E-mail address: [email protected] (S.D. Clarke). Active photon interrogation systems may be employed to detect high-Z i...

Background: In treating patients with radiation, the degree of accuracy for the delivery of tumor dose is recommended to be within ± 5% by ICRU in report 24. The experimental studies have shown that the presence of low-density inhomogeneity in areas such as the lung can lead to a greater than 30% change in the water dose data. Therefore, inhomogeneity corrections should be used in treatment pla...