MACCS2
Current Central Registry Toolbox Version(s):
1.13.1
Code Owner: Sandia National Laboratory
(SNL)
Description: The MELCOR Accident Consequence Code Systems (MACCS)
code, and its successor code, MACCS2, are based
on the straight-line Gaussian plume model was
developed originally for the Nuclear Regulatory
Commission (NRC). MACCS2 evaluates doses and
health risks from the accidental atmospheric
releases of radio nuclides. The principal phenomena
considered in MACCS2 are atmospheric transport
and deposition under time-variant meteorology,
short-term and long-term mitigative actions
and exposure pathways, deterministic and stochastic
health effects, and economic costs.
Nathan Bixler, nbixler@sandia.gov
at SNL maintains code under direction of Jocelyn
Mitchell at NRC jam@nrc.gov.
Radiation Safety Information Computational Center
(RISCC), http://www-rsicc.ornl.gov,
at Oak Ridge National Laboratory controls the
distribution.
A user initiated blog is available, http://maccs2support.chaninconsulting.com,
sponsored through Chanin Consulting that provides
information related to MACCS2 enhancements and
issues.
In May 2004, DOE Office of Quality Assurance
Programs (EH-31) performed an evaluation of
MACCCS2 against DOE's safety software quality
assurance criteria. A gap analysis report was
generated that identifies the strengths and
weaknesses based upon ASME NQA-1 criteria. Upon
completion of this evaluation, MACCS2 V 1.13.1
was included in DOE's safety software Central
Registry as a safety analysis toolbox code.
Inclusion into DOE's safety software Central
Registry provides to DOE sites knowledge of
the pedigree of the safety software quality
assurance (SSQA) level for MACCS2 V 1.13.1.
If another version of MACCS2 is used, DOE sites
must assume the responsibility to determine
that the quality assurance level meets DOE SSQA
requirements. DOE EH-31 published guidance for
the use of MACCS2 V 1.13.1. This guidance is
recommended for all DOE applications of MACCS2
V 1.13.1.
Reports and publications related to MACCS2:
DOE-EH-4.2.1.3-MACCS2-Gap Analysis,
Software
Quality Assurance Improvement Plan: MACCS2 Gap
Analysis, May 2004.
DOE-EH-4.2.1.4-MACCS2-Code Guidance,
MACCS2
Computer Code Application Guidance for Documented
Safety Analysis, June 2004.
NUREG/CR 6853, Comparison
of Average Transport and Dispersion Among a
Gaussian, a Two-Dimensional, and a Three-Dimensional
Model, October 2004.
This page was last updated on January 17, 2007
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