home *** CD-ROM | disk | FTP | other *** search
- June 22, 1981WORLDTrying to Contain the Genie
-
-
- The industrialized nations must cooperate, not compete
-
- By John Kohan. Reported by Frank Melville/London and Roberto
- Suro/Washington
-
- Israel's attack on the Iraqi reactor last week on the grounds
- of self-defense dramatized the dilemma that has haunted the
- nuclear age since the U.S. exploded the first atomic bomb in a
- New Mexico desert 36 years ago: how to cope with the genie of
- nuclear power once released. After the first atomic blast,
- President Harry Truman said that control of the bomb was "the
- No. 1 problem of the world," adding confidently that "we would
- in time come to some intelligent solution." Truman was too
- optimistic. According to the International Atomic Energy Agency,
- there are some 340 research reactors and 475 power reactors in
- operation or under construction in a total of 46 nations. Says
- the agency's deputy director, Hans Grumm: "Any really determined
- nation could now produce the bomb."
-
- The U.S. monopoly lasted just four years. In 1949 the Soviet
- Union exploded an atomic bomb, followed three years later by
- Britain. France launched its force de frappe in 1960. By the
- time China entered the exclusive club in 1964, the three oldest
- members were already looking for ways to close the door on any
- more and ban nuclear testing. One solution was the 1968
- nuclear nonproliferation treaty. The nuclear powers agreed to
- seek arms control and refrain from transferring nuclear weapons
- to nations without them. The nuclear powers were also obliged
- to share the peaceful uses of atomic energy with the nonnuclear
- bloc.
-
- From the start, the treaty was plagued with problems. France
- and China refused to sign. Even today, with 114 signatories,
- there are some notable holdouts, including such potential
- members of the nuclear club as Pakistan and South Africa.
- Israel, thought to have bombs already, also would not sign.
-
- For a decade after China's entry, the membership of the club
- remained unchanged, and the proliferation threat seemed to
- subside. But India jolted the world back to reality by
- exploding a "peaceful" nuclear device in 1974. The old anxiety
- about the spread of fissile materials had returned, but with a
- new dimension. India's blast proved that the peaceful atom used
- in experimental research reactors and as a power source could
- easily be diverted, whatever the safeguards, to build an atomic
- bomb. At about the same time, world oil prices began to rocket
- upward. To many nations, nuclear reactors seemed to be a ready
- panacea for energy ills. Japan and industrialized nations in
- Western Europe developed a brisk trade selling nuclear hardware
- to developing nations that needed new power sources. The
- nuclear menace had spread worldwide in the guise of "atoms for
- peace."
-
- After the Indian explosion, industrialized nations that traded
- in nuclear technology met secretly to try to control sensitive
- exports. But it took the Carter Administration to reinvigorate
- the faltering cause of nonproliferation. In 1977 the
- Administration called for strict limits on the manufacture and
- sale of fissile materials that could be used to build bombs.
- Western European nations that had moved ahead in atomic
- research objected, on the practical grounds that the plan
- hindered new technological advances that would make it possible
- to recycle nuclear fuel for peaceful purposes. The
- Administration was unable to stop West Germany from selling
- sophisticated equipment to Brazil, and it also failed to argue
- France out of sending sensitive nuclear exports to Iraq.
- Secretary of State Alexander Haig has criticized the Carter plan
- for "using blackmail against Germany and France by using threats
- to cut off uranium shipments." But even Carter found it
- difficult to live within the letter of the law. Fearing that
- India might turn to the Soviet Union for nuclear fuel, the U.S.
- sold uranium to New Delhi last year.
-
- The Reagan Administration is still mulling over a policy of its
- own to decrease the spread of nuclear weapons as the doomsday
- clock ticks on. The number of nations that are close to
- mastering bomb technology is expected to increase fivefold by
- the end of the decade. With the help of sophisticated Western
- European reactors, Argentina could produce the first Latin
- American bomb. Taiwan and South Korea already have the skills
- to make their own, but have pulled out of the arms race because
- of intense U.S. pressure, a decision they may reverse if they
- are threatened some day by their Communist neighbors.
- Possessing both extensive uranium reserves and a home-grown
- process for enriching atomic fuel, South Africa is poised to
- become its continent's first nuclear power. Pakistan could
- produce what is known as the "Islamic bomb."
-
- Adding to the concern about the mushrooming nuclear club is the
- fear of a multiplier effect: nuclear know-how or weapons-grade
- fuel might eventually pass secondhand to nations in volatile
- regions of the world or to international terrorists. Princeton
- Physicist Theodore Taylor, onetime atom bomb designer, says the
- procedure for making the weapon is so widely known that a
- terrorist might be able to build one in a few weeks using
- purloined plutonium.
-
- To control the shipment of nuclear materials, the IAEA
- negotiated the 1980 Convention on the Physical Protection of
- Nuclear Material, which provides security guidelines for the
- handling of fissile materials and sets forth methods of
- international cooperation to recover stolen nuclear fuel. But
- can anything really be done to stop nuclear proliferation? As
- the Carter Administration learned from the crisis over selling
- uranium to India, strategic and political concerns work mightily
- against shutting down the "plutonium economy." But it can still
- be checked. One approach might be to give international
- controls more power. In order to get laggards to subscribe to
- the nonproliferation treaty, nuclear suppliers could agree to
- give preferential treatment to nations willing to accept
- safeguards for the use of atomic energy.
-
- Such a step would require more resolve than the major nuclear
- powers have shown so far. Said former Secretary of State Henry
- Kissinger last week: "The first group that has to get together
- [is composed of] those who spread nuclear technology -- the
- industrialized countries." Kissinger argued that these nations
- should stop competing with one another for nuclear sales.
- Whatever else it did, Israel last week violently underscored
- that point to the world.
-
- _______________________________________________________________
- The ABCs of A-Bombmaking
-
- Can anyone with the money master the subject?
-
- By Frederic Golden
-
-
- Suppose a small nation with limited technological skills wants
- to build an atomic bomb. Could it succeed? Yes, most nuclear
- experts think the answer is yes, especially if the country
- already possesses a nuclear reactor and the know-how to run it.
- One of the unhappy facts of the nuclear age is that the same
- reactors used in peaceful nuclear research and in the
- production of electricity can also serve as the starting points
- for fabricating A-bombs.
-
- Building its own reactor would be extremely difficult for a
- Third World country. But buying one would not be much of a
- problem, particularly for a nation like Iraq, flush with
- petrodollars. At least 15 countries are now offering nuclear
- technology on the international market. (In addition to the
- U.S. these include the Soviet Union and three of its allies --
- Czechoslovakia, East Germany and Poland -- Britain, France, West
- Germany, The Netherlands, Belgium, Sweden, Switzerland, Italy,
- Canada and Japan.) Their wares include not only a variety of
- reactors and fuels, along with the necessary technicians, but
- also reprocessing machinery that could be used for recovering
- the lethal ingredients for bombmaking from the spent reactor
- materials. A tidy set of such equipment that would be suitable
- for conversion to weapon construction would cost upwards of
- $250 million.
-
- A nation that had signed the 1968 nonproliferation treaty, only
- to decide that it wanted a nuclear weapon after all, would have
- to conceal its operations from the International Atomic Energy
- Agency (IAEA), a Vienna-based affiliate of the U.N. The
- agency's inspectors are often on hand when nuclear fuel is
- loaded into a reactor. They install sealed closed circuit TV
- cameras for continuous on-site monitoring, and they return
- periodically to check this equipment. Still, the IAEA's
- inspectors do not always get to see what they would like in
- member countries. For a time during the Iraq-Iran fighting, for
- example, Baghdad refused to allow IAEA officials into the area.
-
- A bigger problem is that more and more people around the world
- know how to build bombs. Even U.S. college students, poring
- through declassified Government technical papers, have put
- together designs for rudimentary A-bombs. Articles have been
- written about the subject. The key ingredient for both the
- bombs and the reactors is the same: fissile material such as
- uranium or plutonium, whose atoms can readily split, scattering
- tiny, fast-moving particles called neutrons. When neutrons
- score bull's-eyes on the nuclei of neighboring atoms, they
- split them as well, unleashing still more neutrons, which in
- turn cause more break-ups, all of which release energy.
-
- In a nuclear reactor, such a chain reaction is kept under
- control by "absorbers" -- usually boron or cadmium rods. These
- capture neutrons that might otherwise split more atoms. But if
- the fissile material is pure enough, and sufficiently
- compressed, as in a bomb, the chain reaction speeds up. Heat
- accumulates, and the material blows apart to produce the nuclear
- age's familiar mushroom cloud.
-
- Most nuclear reactors and some nuclear weapons use a rare
- isotope of uranium called U-235. To explode, the U-235 must be
- relatively pure, preferably 90% or more. Commercial U.S.
- reactors, by comparison, usually run on a mix containing only
- 3% U-235. This hampers would-be bombsmiths, since enriching
- U-235 to a high level demands extremely complex separation
- techniques that are still beyond the capability of all but the
- most advanced industrial countries. Yet there are some
- relatively simple ways of overcoming this handicap.
-
- One would be to buy enriched uranium from a nuclear nation as
- part of a deal for a reactor designed to burn such
- weapons-grade fuel. The reactor Iraq acquired from France would
- have used 93% U-235. During the course of operation, some of
- this material might be skimmed off for nuclear weaponry,
- although that would be a risky proposition. The IAEA inspectors
- might spot the diversion, or some of the foreign technicians at
- the site might blow the whistle on the schemers.
-
- But diverting enriched U-235 is not the only option for the
- bombmaker. A-bombs can also be fashioned out of plutonium,
- which is a byproduct of the modern alchemy that occurs in
- reactors. Even relatively small reactors can produce several
- pounds a month of a type of plutonium that lends itself to
- bombmaking. Equally important, plutonium, unlike the nearly
- identical isotopes of uranium, is a separate element with its
- own distinctive characteristics. Thus it is relatively easy to
- pick out by ordinary chemical means from other radioactive
- material.
-
- After only a year or so of operation, enough plutonium (about
- 35 lbs.) could be generated in a small reactor to build two or
- three bombs of the type dropped on Nagasaki. The plutonium
- would be formed into a hollow sphere containing a small neutron
- source that might be made of radium and beryllium. The
- plutonium itself would be wrapped in a beryllium or uranium
- reflector, which helps contain neutrons and prolong the chain
- reaction. This shield would in turn be covered by a layer of
- TNT charges, the most critical aspect of the design. The
- charges would have to be so carefully shaped that the detonation
- would direct their force largely inward, crushing the plutonium
- into a solid, compact ball. The plutonium would quickly reach
- what bombmakers call supercritical density. As the chain
- reaction went out of control the material would explode.
-
- By today's superpower standards, a Nagasaki-type bomb would be
- puny -- the equivalent of a mere 10,000 tons of TNT. But that
- might be more than enough to terrorize an enemy, or crush a
- nonnuclear neighbor.
-
-
-