Simulations for bulk shielding design around rare isotope accelerator targets

I. Baek, R. M. Ronningen, I. Remec, S. Reyes

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

The planned Rare Isotope Accelerator (RIA) facility in the US would become the most powerful radioactive beam facility in the world. Beam energies of up to 1 GeV for protons and up to 500 MeV per nucleon for heavy ions are foreseen with beam powers up to 400 kW. The magnitude of the prompt radiation generated at the target stations and characterization of radiation doses and their spatial distribution outside of the bulk shielding will be a significant element of the overall hazard analysis of the facility. To determine the distribution of neutron and photon doses, Monte Carlo radiation transport calculations were carried out for p, d, and 3He beams using MCNPX, and for p, d, 3He, 22Ne, 48Ca, 136Xe, and 238U using PHITS. Results were compared where possible. Simulations using PHITS were also compared to experiment and agreed well. Simulations were also compared with a Moyer semi-empirical approach as a check on results. The simulation results for the dose rate outside of concrete shielding and cast iron shielding agreed reasonably well with the Moyer semi-empirical approach. Results obtained using PHITS and MCNPX agree reasonably well for light ions (p, d, 3He) with and without shielding.

Original languageEnglish
Title of host publicationAmerican Nuclear Society's 14th Biennial Topical Meeting of the Radiation Protection and Shielding Division
Pages127-138
Number of pages12
StatePublished - 2006
EventAmerican Nuclear Society's 14th Biennial Topical Meeting of the Radiation Protection and Shielding Division - Carlsbad, NM, United States
Duration: Apr 2 2006Apr 6 2006

Publication series

NameAmerican Nuclear Society's 14th Biennial Topical Meeting of the Radiation Protection and Shielding Division
Volume2006

Conference

ConferenceAmerican Nuclear Society's 14th Biennial Topical Meeting of the Radiation Protection and Shielding Division
Country/TerritoryUnited States
CityCarlsbad, NM
Period04/2/0604/6/06

Keywords

  • Radiation beam
  • Shielding

Fingerprint

Dive into the research topics of 'Simulations for bulk shielding design around rare isotope accelerator targets'. Together they form a unique fingerprint.

Cite this