TAP Canada

From the Federation of American Scientists, Special Weapons Primer, Weapons of Mass Destruction (www.fas.org/nuke/intro/nuke/tritium.htm)

“Tritium ( ³ H) is essential to the construction of boosted-fission nuclear weapons. A boosted weapon contains a mixture of deuterium and tritium, the gases being heated and compressed by the detonation of a plutonium or uranium device. The D-T mixture is heated to a temperature and pressure such that thermonuclear fusion occurs. This process releases a flood of 14 MeV neutrons which cause additional fissions in the device, greatly increasing its efficiency.

“Tritium is rare in nature because of its 12.4-year half-life. It is produced by cosmic radiation in the upper atmosphere where it combines with oxygen to form water. It then falls to earth as rain, but the concentration is too low to be useful in a nuclear weapons program. Most tritium is produced by bombarding ⁶Li [ ⁶ Li(n, a) ³ H] with neutrons in a reactor; it is also produced as a byproduct of the operation of a heavy-water-moderated reactor when neutrons are captured on the deuterons present.

“Tritium can be stored and shipped as a gas, a metal hydride (e.g., of titanium) or tritide, and trapped in zeolites (hydrated aluminum silicate compounds with uniform size pores in their crystalline structure). Stainless-steel cylinders with capacities up to 5.6 ‘ 10 ⁷ GBq (1.5 MCi) of tritium gas are used for transportation and storage and must be constructed to withstand the additional pressure which will build up as tritium gradually decays to 3 He.

“All five declared nuclear weapon states must have the underlying capability to manufacture and handle tritium, although the United States has shut down its production reactors due to safety considerations. Canada manufactures tritium as a byproduct of the operation of CANDU reactors. (emphasis added) In principle, limited amounts of tritium could be made in any research reactor with the ability to accept a target to be irradiated.

          Sources and Methods

• Adapted from - Nuclear Weapons Technology Militarily Critical Technologies List (MCTL) Part II: Weapons of Mass Destruction Technologies”

Martin Mittelstaedt, Globe and Mail (Canada)
February 8, 2006

The federal government is licensing companies to handle dangerous nuclear materials that have both peaceful and military uses without knowing who ultimately owns the businesses.

Nuclear critics say the fact that the Canadian Nuclear Safety Commission, the federal watchdog agency, does not know the identity of owners of the companies it oversees is a major blunder, given the high-security risks presented by nuclear materials and the potential costs of any accident involving radioactive releases. Read more…

MARTIN MITTELSTAEDT, ENVIRONMENT REPORTER, The Globe and Mail
March 23, 2006

The Canadian Nuclear Safety Commission approved a shipment to Iran last year by a Canadian company of about 70,000 glow-in-the-dark lights containing tritium, a radioactive gas that can also be used as a component in hydrogen bombs.

The amount of tritium approved by the nuclear regulator for shipment to the volatile Middle Eastern country was about 10 per cent of the quantity considered necessary for making one nuclear weapon, although the company selling the lights, SRB Technologies (Canada) Inc., said it sent less than it was allowed.
Read more…

MARTIN MITTELSTAEDT, The Globe and Mail -
Tuesday, November 21, 2006

Nuclear watchdog may ask atomic agency to monitor Ontario company’s tritium use

The International Atomic Energy Agency, the body that tries to stop the proliferation of nuclear weapons, should inspect SRB Technologies (Canada) Inc., a Canadian company that uses radioactive tritium, according to an internal report by the Canadian Nuclear Safety Commission.

The recommendation will be reviewed by the commission, Canada’s nuclear watchdog, at a licence hearing for SRB next week. If approved, it would place the Pembroke, Ont., company in the same league in terms of inspections as facilities that have stockpiles of fissile material that could be converted into atomic weapons. Read more…