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NEA-0949 BERMUDA.

BERMUDA, 1-D, 2-D, 3-D Neutron and Gamma Transport for Shielding

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1. NAME OR DESIGNATION OF PROGRAM:  BERMUDA.
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2. COMPUTERS
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Program name Package id Status Status date
BERMUDA NEA-0949/01 Testing in progress 18-OCT-2005

Machines used:

Package ID Orig. computer Test computer
NEA-0949/01 FACOM M-780
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3. DESCRIPTION OF PROGRAM OR FUNCTION

BERMUDA is a radiation transport system for one-, two-, and three-dimensional geometries, developed for shielding calculations. Both neutron transport and gamma transport modules are included.
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4. METHOD OF SOLUTION

Angular flux distribution is obtained by integrating the transport equation over the line segment along each  angular discrete ordinate at each spatial mesh point. A fine energy  grid method is used, with a rebalancing scheme concerning the number of gain and loss particles (or photons) over each coarse mesh region and also in each energy grid.
In gamma transport, the group-angle transfer matrix takes into account Compton scattering, pair production and electron annihilation. Photon energy range is from 14 MeV to 10 keV.
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5. RESTRICTIONS ON THE COMPLEXITY OF THE PROBLEM:
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6. TYPICAL RUNNING TIME:
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7. UNUSUAL FEATURES OF THE PROGRAM:
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8. RELATED AND AUXILIARY PROGRAMS:
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9. STATUS
Package ID Status date Status
NEA-0949/01 18-OCT-2005 in preparation
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10. REFERENCES:
NEA-0949/01, included references:
- Tomo-o Suzuki et al.:
  Development of BERMUDA - A Radiation Transport Code System
  Part I. Neutron Transport Codes
  JAERI 1327 (May 1992) + Errata.
- Tomo-o Suzuki et al.:
  Development of BERMUDA - A Radiation Transport Code System
  Part II. Gamma Rays Transport Codes
  JAERI-M 93-143 (July 1993).
- Tomo-o Suzuki et al.:
  Development of BERMUDA - A Radiation Transport Code System
  Part III. A One-Dimensional Adjoint Neutron Transport Code
  JAERI-Data/Code 94-002 (July 1994).
- Tomo-o Suzuki et al.:
  A New Library of Neutron Group Constants for BERMUDA
  Based on JENDL-3.2 Nuclear Data File (in Japanese)
  JAERI-Data/Code 95-006
- Hiroshi Nakashima, Akira Hasegawa and Tomo-o Suzuki:
  A New Library of Gamma Rays Group Constants for BERMUDA Based on
  JENDL-3.2 Nuclear Data File
  JAERI-Data/Code 96-021 (May 1996)
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11. MACHINE REQUIREMENTS:
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12. PROGRAMMING LANGUAGE(S) USED
Package ID Computer language
NEA-0949/01 FORTRAN
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13. OPERATING SYSTEM UNDER WHICH PROGRAM IS EXECUTED:
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14. OTHER PROGRAMMING OR OPERATING INFORMATION OR RESTRICTIONS:
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15. NAME AND ESTABLISHMENT OF AUTHORS

Tomoo SUZUKI, Akira HASEGAWA, Shun-ichi TANAKA and Hiroshi NAKASHIMA
Department of Reactor Engineering
Tokai Research Establishment
Japan Atomic Energy Research Institute
Tokai-mura, Naka-gun, Ibaraki-ken
JAPAN
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16. MATERIAL AVAILABLE
NEA-0949/01
test-case data   mag tapeBCD to BIN JCL                             DATTP
source program   mag tapeBCD to BIN FORTRAN Source                  SRCTP
test-case data   mag tapeBERM125Y(BCD BRP.Const)                    DATTP
test-case data   mag tapeBERMUDA-1DN JCL                            DATTP
source program   mag tapeBERMUDA-1DN FORTRAN Source                 SRCTP
test-case data   mag tapeBERMUDA-1DN Input Data                     DATTP
test-case output mag tapeBERMUDA-1DN Output List                    OUTTP
test-case data   mag tapeBERMUDA-2DN JCL                            DATTP
source program   mag tapeBERMUDA-2DN FORTRAN Source                 SRCTP
test-case data   mag tapeBERMUDA-2DN Input Data                     DATTP
test-case output mag tapeBERMUDA-2DN Output List                    OUTTP
test-case data   mag tapeBERMUDA-3DN JCL                            DATTP
source program   mag tapeBERMUDA-3DN FORTRAN Source                 SRCTP
test-case data   mag tapeInput Data (DATA3DN1)                      DATTP
test-case data   mag tapeInput Data (DATA3DN2)                      DATTP
test-case output mag tapeBERMUDA-3DN Output List                    OUTTP
test-case data   mag tapeBERMUDA-2DN-S16 JCL                        DATTP
source program   mag tapeBM2DNS16 FORTRAN Source                    SRCTP
test-case data   mag tapeBM2DNS16 Input Data                        DATTP
test-case output mag tapeBM2DNS16 Output Data                       OUTTP
report                   JAERI 1327 Part I (May 1992) + Errata      REPPT
report                   JAERI -M 93-143 Part II (July 1993)        REPPT
report                   JAERI-Data/Code 94-002 Part III (July 1994)REPPT
report                   JAERI-Data/Code 95-006 (April 1995)        REPPT
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17. CATEGORIES
  • J. Gamma Heating and Shield Design

Keywords: gamma radiation, neutron transport equation, one-dimensional, shielding, three-dimensional, two-dimensional.