There were several prototype land-based models, including the TES-3, built in Obninsk, that could be moved on railroad flatbed cars or on tank treads. In the 1990s, Russian nuclear engineers designed a barge-based, floating nuclear unit for use in the Far North and Far East.
There was also an extensive breeder reactor program. The most common type was the liquid metal fast breeder reactor (LMFBR). Breeder reactors are so called because they use “fast” neutrons from fissile uranium (U235) to transmute non-fissile U238 into plutonium (Pu239). The plutonium can then be used to power other breeder reactors, or as fuel for nuclear weapons. Breeder reactors are highly complex. They have a liquid metal, usually sodium, coolant, which must be kept separate from the water used for power generation, because the sodium will burst into flame when mixed with water.
The physicists A. I. Leipunsky and O. D. Kazachkovsky established the LMFBR program in 1949, over the years building a series of increasingly powerful experimental reactors. In the late 1960s, they built the BOR-60 with the hope that it would double (or breed) plutonium every eight years. Like its predecessors and subsequent models, the BR-60 had an extended operational lifespan, but also required long periods of repair time because of pump breakdowns, ruptured fuel assemblies, sodium leaks, and fires.
Leipunsky and Kazachko were determined to build industrial prototype reactors as well. In 1979 they built the BN-350 on the Mangyshlak Peninsula on the shore of the Caspian Sea. The reactor
ATOMIC ENERGY
provided both electrical energy and desalinated 120,000 cubic meters of water daily for the burgeoning petrochemical industry. At Beloiarsk they built a 600 megawatt model (the BN-600), followed by an 800 megawatt model (the BN-800), and aimed to create a network of 1,600 megawatt LMFBRs that would be capable of producing plutonium sufficient for all military and civilian ends. Cost overruns and accidents left the program weakened, however.
The mainstay of the Soviet (and Russian) atomic energy effort has been the development of 440 and 1,000 megawatt pressurized water reactors, known by the Russian designation as VVER reactors. Also important were the channel-graphite reactors (RMBK in Russian), such as the one built at Chernobyl. The USSR supported the diffusion of VVERs beyond its borders, especially into Eastern Europe (Hungary, Czechoslovakia, and Bulgaria), and two 1,500 MW RMBKs in Lithuania. The VVERs have been largely reliable by Soviet standards, although the first generation facilities lack any containment buildings or other safety equipment that has become standard in the West.
Reactors had to include more expensive containment design features if they were to be competitive in Western markets, as when the USSR sold its VVER-440s to Finland. In an effort to reduce costs, speed construction, and limit chances for worker error in the field, the nuclear industry built the Atommash Factory in Volgodonsk on the lower Volga River. Atommash was intended to construct eight reactor pressure vessels and associated equipment annually by 1983. The massive factory required the investment of millions of rubles and employed tens of thousands of workers. Yet it never operated as intended, producing only three vessels in all before one wall of the main foundry collapsed.
RMBKs have been even more problematic. Ana-toly Alexandrov, later the president of the Academy of Sciences and Kurchatov’s successor, pushed the RMBK reactor. Their advantages are that they continue to operate during constant refueling, theoretically could be built in sizes up to 2,400 megawatts (forecast, not built), and produce plutonium, which is coveted by military planners. Yet they use ordinary factory structures and have no containment whatsoever. On the other hand, they have suffered from premature aging. Worse still, the RBMK is highly unstable at low power, an inherent fault that contributed to the Chernobyl disaster. The flagship of the RBMK is the Leningrad station, with four units built between 1973 and 1984. In 2002 the Ministry of Atomic Energy (Mi- nAtom) announced plans to attempt to prolong the operational lives of these four reactors and to build another two units on the site. This continues the Soviet practice of building reactors in close proximity to populated areas and industrial centers in so-called parks that have been designed to share equipment and thus to keep costs down.
Initially, the public enthusiastically embraced atomic energy as a symbol of Soviet scientific prowess and cultural achievement. However, the inherent weaknesses of the RBMK and the dangers of the mindset of Soviet engineers who believed in the perfectibility of their technology and the desirability of unlimited reactor construction became painfully clear at Chernobyl in April 1986. As a result of an experiment that was poorly designed and even more poorly carried out, the Chernobyl facility’s unit four (of four operating, with six others planned) exploded, spewing roughly 120 million curies of radioactivity into the atmosphere. This led to a fire that killed thirty-one firefighters outright, and required the evacuation of all people within a thirty-kilometer radius of the station. Soviet officials hesitated to announce the extent of the crisis at Chernobyl for several days after the event. This hesitation revealed that Mikhail Gorbachev himself was unsure how far to pursue his policy of glas-nost (“openness”) and seriously damaged the public image of the atomic energy program.
A major research program centered on controlled thermonuclear synthesis, or fusion. Andrei Sakharov and Igor Tamm developed the idea for the electromagnetic containment of a plasma in a toroid-shaped reactor at millions of degrees temperature. The plasma would fuse two lighter elements into a heavier one, releasing tremendous amounts of energy that could then be used to generate electricity. This model has come to be known throughout the world by its Russian name, toka-mak, and has been the most successful fusion device developed by the end of the twentieth century. Soviet scientists remained world leaders in this field, with programs at institutes in Leningrad, Kharkiv, Akademgorodok, Moscow, and elsewhere. Cost efficiency has been a problem however. Since the program commenced in the early 1950s, it has yet to achieve the break-even point where the cost tooperate fusion devices has been offset by the
AUGUST 1991 PUTSCH
returns gained through energy production. In 1985, Mikhail Gorbachev suggested a Soviet-American alliance in fusion research to President Ronald Reagan at their Geneva summit.
One of the legacies of atomic energy in the USSR has been the production of thousands of tons and millions of gallons of high- and low-level radioactive waste. The waste has been stored haphazardly, often in open areas, and for a number of years the Soviets dumped waste, including spent reactor vessels, into the world’s oceans. The waste has been spreading throughout the world’s ecosystems for decades. There have been a series of disasters connected with waste disposal, including the explosion of a waste dump at Kyshtym in 1957, a disaster at Lake Karachai in 1953, and several others. As of 2002, Russia faced financial and technical difficulties in complying with international agreements regarding the disposal of radioactive waste and in destroying obsolete military equipment such as decommissioned nuclear submarines. The human and environmental costs of the Soviet atomic energy program thus remain extremely high. In spite of this, the Russian Ministry of Atomic Energy has established plans to expand the nuclear enterprise significantly by the year 2020, with the construction of up to forty additional reactors and the diffusion of floating nuclear power stations. See also: CHERNOBYL; COLD WAR
BIBLIOGRAPHY
Holloway, David. (1994) Stalin and the Bomb. New Haven, CT: Yale University Press. Josephson, Paul. (1999). Red Atom. New York: Freeman. Medvedev, Zhores. The Legacy of Chernobyl. New York: Norton.
The August 1991 Putsch (August 19-August 21) was a hard-line communist attempt to overthrow Mikhail Gorbachev, triggering the collapse of the USSR.
On the morning of August 19, 1991, Soviet state television suddenly and ominously switched to playing classical music, a programming change that usually preceded a significant political announcement. Soviet vice president Gennady Yanayev issued a statement that President Mikhail Gorbachev had been removed for health reasons and that he, as vice president, was now acting president. In reality, Gorbachev was under house arrest at his vacation home in Foros. Yanayev and seven other hard-line communists, under the rubric of the State Committee for the State of Emergency, had seized power to prevent a major reorganization of the Soviet Union.
Gorbachev’s policies of glasnost, democratization, and perestroika had set in motion a process of
