Overview of MACCS and MACCS2 development efforts

Conference · Thu Aug 01 04:00:00 EDT 1996

OSTI ID:266674

Young, M ^[1]; Chanin, D ^[2]

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1. Sandia National Labs., Albuquerque, NM (United States). Accident Analysis and Consequence Assessment Dept.
2. Technadyne Engineering Consultants, Inc., Albuquerque, NM (United States)

The MELCOR Accident Consequence Code System (MACCS), publicly distributed since 1987, was developed to estimate the potential impacts to the surrounding public of severe accidents at nuclear power plants. The principal phenomena considered in MACCS 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 of mitigative actions. At this time, no other publicly available code in the US offers all these capabilities. MACCS2 represents a major enhancement of the capabilities of its predecessor MACCS. MACCS2 was developed as a general-purpose analytical tool applicable to diverse reactor and nonreactor Department of Energy (DOE) facilities. The MACCS2 package includes three primary enhancements: (1) a more flexible emergency response model, (2) an expanded library of radionuclides, and (3) a semidynamic food-chain model. The new code features allow detailed evaluations of risks to workers at nearby facilities on large DOE reservations and allow the user to assess the potential impacts of over 700 radionuclides that cannot be considered with MACCS.

• Research Organization: Sandia National Labs., Albuquerque, NM (United States)
• Sponsoring Organization: USDOE, Washington, DC (United States)
• DOE Contract Number: AC04-94AL85000
• OSTI ID: 266674
• Report Number(s): SAND--96-1341C; CONF-960912--3; ON: DE96011843
• Country of Publication: United States
• Language: English

Related Subjects

21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS
22 GENERAL STUDIES OF NUCLEAR REACTORS
99 GENERAL AND MISCELLANEOUS
EMERGENCY PLANS
M CODES
NUCLEAR POWER PLANTS
REACTOR ACCIDENTS
RISK ASSESSMENT