Operation Roller Coaster

Operation Roller Coaster
Name	Operation Roller Coaster
Partof	Cold War
Date	1963
Place	Nevada Test Site
Result	Series of safety experiments
Participants	United States Department of Defense, Atomic Energy Commission, Sandia National Laboratories

Contents

Operation Roller Coaster was a 1963 series of non-nuclear safety experiments conducted at the Nevada Test Site involving conventional detonation of nuclear weapon components to study dispersal of radioactive materials. The project involved coordination among agencies such as the United States Department of Defense, the United States Atomic Energy Commission, and contractors including Sandia National Laboratories and Los Alamos National Laboratory, and occurred within the broader context of Cold War weapons development and testing.

Background

The initiative emerged amid concerns raised after earlier incidents like the Palomares incident and the Thule Air Base accident, prompting policy reviews by actors including the Department of Defense and the Atomic Energy Commission. Studies were influenced by doctrines articulated in documents from institutions such as RAND Corporation, directives from the United States Secretary of Defense, and technical guidance from laboratories like Lawrence Livermore National Laboratory. International dynamics with states such as the Soviet Union, events like the Cuban Missile Crisis, and treaties including the Partial Test Ban Treaty shaped the political and operational environment. Military services—United States Air Force, United States Navy, and United States Army—provided personnel and material, while contractors such as General Electric and Martin Marietta supplied systems engineering support.

Planners aimed to quantify dispersal mechanisms for fissile materials during conventional detonations of weapon assemblies, to inform protocols used by organizations like Defense Nuclear Agency and Armed Forces Radiobiology Research Institute. Specific goals included assessing contamination patterns for components from laboratories including Los Alamos National Laboratory, Sandia National Laboratories, and Brookhaven National Laboratory and improving response procedures utilized by units such as Civil Defense (United States), United States Public Health Service, and Federal Civil Defense Administration. Data were intended to support policy decisions by entities like President of the United States, United States Congress, and regulatory bodies including the Nuclear Regulatory Commission precursor agencies.

The program employed open-air conventional detonations, aerosol generation, and model validation drawing on expertise from Oak Ridge National Laboratory, Argonne National Laboratory, and Lawrence Berkeley National Laboratory. Measurement teams from Health Physics Society affiliates and technicians trained at Brookhaven National Laboratory used samplers developed by Sandia National Laboratories and #Los Alamos National Laboratory instrument groups. Modeling relied on computational methods from the National Center for Atmospheric Research and correlational studies referencing incidents like the Castle Bravo fallout analysis. Oversight involved representatives from the Department of Defense, the Atomic Energy Commission, and legal counsel modeled on precedents from United States v. Reynolds-era protocols.

Tests occurred at sectors of the Nevada Test Site including areas near Frenchman Flat and Yucca Flat, with support from installations such as Nellis Air Force Base and logistics provided via Henderson Field (Nevada). Laboratories participating included Sandia National Laboratories in Albuquerque, New Mexico, Los Alamos National Laboratory in Los Alamos, New Mexico, and Lawrence Livermore National Laboratory in Livermore, California. Medical monitoring involved clinics at Nellis Air Force Base and referrals to institutions like Walter Reed Army Medical Center and Bethesda Naval Hospital. Environmental samples were analyzed in facilities modeled on methods used at Brookhaven National Laboratory and Oak Ridge National Laboratory.

Post-test monitoring drew on radiobiology expertise from Armed Forces Radiobiology Research Institute and epidemiological methods used in studies at National Institutes of Health and Centers for Disease Control and Prevention. Concerns over exposure to isotopes handled by Los Alamos National Laboratory and Oak Ridge National Laboratory prompted surveillance of personnel and local populations by agencies like the Public Health Service. Studies referenced contamination patterns observed in the Palomares incident and the Thule Air Base accident and applied dose reconstruction techniques developed at Lawrence Livermore National Laboratory and Sandia National Laboratories. Longitudinal health investigations by entities such as National Cancer Institute and academic centers including University of California, Berkeley contributed to understanding of potential effects.

Public and congressional scrutiny involved hearings by committees in the United States Congress and media coverage from outlets such as The New York Times and The Washington Post. Activist organizations including Natural Resources Defense Council and movements associated with protests influenced discourse alongside advocacy by groups like Physicians for Social Responsibility. Litigation invoking precedents from cases associated with Atomic Energy Commission oversight and environmental law engaged entities such as Environmental Protection Agency and legal scholars from universities including Harvard University and Yale University. International commentary included responses from the United Nations and statements by delegations from the Soviet Union.

Declassification and archival release involved the National Archives and Records Administration and researchers at institutions such as Sandia National Laboratories and Los Alamos National Laboratory. Scholarly analyses appeared in journals edited by organizations like the American Physical Society and the History of Science Society, and in books by authors associated with Stanford University and Massachusetts Institute of Technology. Records influenced later policies at the Department of Energy and operational guidance within the Defense Nuclear Agency successor organizations. Ongoing scholarly and public-interest work continues at universities such as University of New Mexico and University of California, Los Angeles, and in documentary projects affiliated with institutions like the Smithsonian Institution and the Library of Congress.