David Albright and Serena Kelleher-Vergantini
February 20, 2015
Pakistan’s Chashma Plutonium Separation Plant: Possibly Operational
Pakistan has built four reactors at Khushab to produce plutonium for its nuclear weapons. However, to use this plutonium in nuclear weapons, Pakistan must chemically separate it from the irradiated reactor fuel, a difficult process done in special buildings called plutonium separation or “reprocessing” plants. Faced with a lack of technical capability, Pakistan sought to buy a reprocessing plant from France in the mid-1970s. Because of concerns about the plant’s potential use to make nuclear weapons, France cancelled its contract to provide a reprocessing plant to Pakistan.
Several years later, Pakistan finished a small one near Rawalpindi on its own. This small plant became the location for separating plutonium for nuclear weapons after Pakistan brought into operation its first Khushab reactor in 1998. During the last several years, it has started three more Khushab reactors and the Rawalpindi separation plant may not be large enough to process all the irradiated fuel.
As a result, Pakistan is believed to have secretly finished the Chashma plutonium separation plant in order to separate the relatively large amount of plutonium produced in all four reactors. The original reprocessing site is believed to be adjacent to the Chashma Nuclear Power Complex, located 270 kilometers south-west of Islamabad. The operational status of this reprocessing plant is unknown, although satellite imagery signatures suggest it may have recently become operational. Bringing into operation this reprocessing facility would significantly increase Pakistan’s plutonium separation capability and ability to make nuclear weapons.
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