cont...
acquire nuclear capability.[20] Therefore, Mr. Bhutto arranged a meeting between President Ayub and Munir Ahmad Khan on December 11, 1965 at the Dorchester Hotel.
When Munir came out of the meeting, he informed an impatient Bhutto, who was pacing up and down in the lobby that the President did not agree. Bhutto instantly remarked, Dont worry, our turn will come![21] This marked the beginning of an alliance that was akin to that of Nehru and Bhabha in India and from then on, both would often meet in Pakistan and Europe and discuss Pakistans nuclear future.
Therefore, one of the first steps taken by Mr. Bhutto towards the development of the nuclear program was to summon a meeting of senior scientists and engineers at Multan on January 20, 1972. Prior to this, Bhutto had called Munir Khan from IAEA to prepare a feasibility report on Pakistans nuclear infrastructure.[22] At the Multan meeting, Mr. Bhutto announced the appointment of Munir Ahmad Khan as the new Chairman of PAEC and made him directly responsible to the Chief Executive.[23] At the inauguration of KANUPP on November 28, 1972 Mr. Bhutto recalled his association with Munir Ahmad Khan:
Since 1965, I have been in close touch with you (Chairman PAEC) and we have had many occasions to discuss how atomic energy can help in the development of our country. That is why soon after assuming this office, I not only placed the Atomic Energy Commission under my direct control but asked you to return to the country and serve the nation.[24]
Without going into details, from then on PAEC initiated work on the complete nuclear fuel cycle and following Indias nuclear test of 1974, on the nuclear weapons program. However, the task confronting Munir Khan and PAEC was Herculean by any standard. The total manpower comprising scientists, engineers of various disciplines in PAEC was 283[25] since half the manpower training in the previous decade was Bengali and had left for Bangladesh. The task ahead included the successful commission of KANUPP and acquiring complete mastery over the nuclear fuel cycle, which provides a country with the option of going for the highly enriched uranium or plutonium or both routes to producing fissile material for an atomic bomb.
Therefore, to build a uranium bomb through the highly enriched uranium route a country needs the following plants and facilities:[26]
1. Uranium deposits
2. A uranium mine
3. A uranium mill (for processing uranium ore that usually contains less than 1
percent uranium into uranium oxide concentrate, or yellowcake).
4. A uranium conversion plant (for purifying yellowcake and converting it into uranium
hexafluoride (UF6) or uranium tetrachloride (UCl4), the material processed
in the enrichment plant.
5. An enrichment plant (for enriching the uranium hexafluoride gas or uranium
tetrachloride in the isotope U235).
6. A capability for converting the enriched uranium hexafluoride gas or uranium
tetrachloride into solid uranium oxide or metal.
Hence, PAEC under Munir Ahmad Khan established the following infrastructure for developing the HEU route:
Development of Enriched Uranium Route for Producing Fissile Material by PAEC: 1972-1981
Process/ Step Location/Facility Launched Completed Product
Uranium Exploration Baghalchur, D G Khan 1972 Ongoing Uranium Ore
Uranium Processing Baghalchur-1 (BC-1) 1975 1978 Yellow Cake/
Uranium Concentrate U308
Uranium Conversion CPC- DG Khan 1975 1980 Uranium Oxide U02
Uranium Tetra fluoride, UF4
Uranium Hexafluoride Gas,UF6
Uranium Enrichment Chaklala, Sihala, Kahuta 1974 1980
Enriched Uranium Gas U-235
Uranium Metallurgy Uranium Metal Laboratory 1977-78 1980-81
Enriched Uranium U-235 Metal
Moreover, to build a plutonium bomb, through the plutonium route, a country needs the following plants and facilities:[27]
1. Uranium deposits.
2. A uranium mine.
3. A uranium mill (for processing uranium ore containing less than 1 percent
uranium into uranium oxide concentrate, or yellowcake).
4. A uranium purification plant (to further improve the yellowcake into reactor grade
uranium dioxide).
5. A fuel fabrication plant (to manufacture the fuel elements placed in the reactor),
including a capability to fabricate zircaloy or aluminium tubing.
6. A research or power reactor moderated by heavy water or graphite.
7. A heavy-water production plant or a reactor-grade graphite production plant.
8. A reprocessing plant.
Hence, PAEC under Munir Ahmad Khan established the following infrastructure for developing the Plutonium route:
Development of Plutonium Route for Producing Fissile Material by PAEC: 1972-1997
Process/ Step Location/Facility Launched Completed Product
Uranium Exploration Baghalchur, D G Khan 1972 Ongoing Uranium Ore
Uranium Processing Baghalchur-1 (BC-1) 1975 1978 Yellow Cake/
Uranium Concentrate U308
Uranium Conversion CPC- DG Khan 1975 1980 Uranium Oxide U02
Uranium Tetra fluoride, UF4
Uranium Hexafluoride Gas,UF6
Nuclear Fuel Fabrication Kundian 1976 1980
Nuclear Fuel Elements for Nuclear Reactors
Plutonium Reactor 50 MW Khushab 1985 1997 Weapons-Grade Pu-239
Heavy Water Production Khushab Complex 1985 1997 Heavy Water
Tritium Production Khushab Complex 1987 1987 Tritium Fusion Fuel
Fuel Reprocessing New Labs, PINSTECH 1973 1981 Pu-239 and Pu Metal
Plutonium Metallurgy
These milestones were achieved in 15-20 Directorates of PAEC[28] comprising over 20 labs and projects as Munir Khan recalled in 1999:
Many sources were tapped after the decision to go nuclear. We were simultaneously working on 20 labs and projects under the administrative control of PAEC, every one the size of Khan Research Laboratories.[29]
These projects comprised uranium exploration, refining and processing, conversion, and fuel fabrication and reprocessing facilities, that were set up as part of a long-term comprehensive nuclear plan prepared by Munir Khan in May 1972.[30] With regard to the development of nuclear weapons and its associated infrastructure, Munir Khan recalled:
While we were building capabilities in the nuclear fuel cycle, we started in parallel the design of a nuclear device, with its trigger mechanism, physics calculations, production of metal, making precision mechanical components, high-speed electronics, diagnostics, and testing facilities. For each one of them, we established different laboratories.[31]
A Theoretical Physics Group was founded in PAEC Dec. 1972 and was tasked with developing the design of the nuclear device,[32] while a Directorate of Technical Development under Mr. Muhammad Hafeez Qureshi was set up in PAEC in March 1974 to coordinate the work of all the specialized groups being set up to work on the development and testing of nuclear weapons.[33] On June 15, 1974, Prime Minster Zulfikar Ali Bhutto directed PAEC to initiate work on the atomic bomb.[34]
Prior to this, Munir Ahmad Khan had called a meeting to begin work on the nuclear device in a meeting held on March 1974 when a brilliant mechanical engineer, Mr. Muhammad Hafeez Qureshi was appointed head of the Wah Group and the Directorate of Technical Development (DTD). The Wah group was later expanded to include chemical, mechanical, explosive, and precision engineers and was tasked to handle implosion hydrodynamics, neutron sources, high explosive testing, triggering mechanism for the device, and precision engineering for the nuclear device.[35]
On March 25, 1974, Munir Ahmad Khan, Hafeez Qureshi and Dr. Riazuddin held a meeting with the then head of the Pakistan Ordnance Factories, Lt. Gen. Qamar Ali Mirza,to set up a plant to manufacture His Majesty's Explosive (HMX) for use in the explosive lenses of the proposed implosion-design fission device. The project was codenamed "Research."[36] The Theoretical Physics Group headed by Dr. Riazuddin had completed the first conceptual and theoretical design of the nuclear device whose report was submitted to Munir Ahmad Khan in December 1976.[37]
Moreover, PAEC had mastered the fuel cycle by 1980 and completed the nuclear test sites at Chaghi and carried out the first cold test of a working nuclear device on March 11, 1983.[38] A second cold test was undertaken shortly afterwards which was witnessed by General K.M. Arif, Ghulam Ishaq Khan, and Munir Ahmad Khan. This was followed by a series of 24 cold tests till the early 1990s wherein different weapon designs were cold tested and their validity was demonstrated when PAEC carried out six nuclear tests on May 28 and 30 at Chaghi and Kharan respectively.[39]
Dr. A Q Khan claims to have carried out only one cold test in 1984 and to have informed President Zia in writing. However, PAEC carried out not one but two dozen cold tests, between 1983 and 1990. While recalling the first cold test and the journey to nuclear capability, Munir Khan would later recall in a speech delivered to honour the Chaghi heroes in 1999:
While we were building capabilities in the nuclear fuel cycle, we started in parallel the design of a nuclear device, with its trigger mechanism, physics calculations, production of metal, making precision mechanical components, high-speed electronics, diagnostics, and testing facilities. For each one of them, we established different laboratories. In 1980 we completed the tunnels at Chaghi. On March 11, 1983, we successfully conducted our first cold test of a working nuclear device. Dr Ishfaq, Dr Samar Mubarakmand, and many others were there. That evening, I went to General Zia with the news that Pakistan was now ready to make a nuclear device. The team that conducted that test was basically the same that carried out the Chaghi test last year. I also want to put this on record that we conducted this cold test long before the [fissile][40] material was available for the real test.[41]
The second PAEC cold test in May 1983 was witnessed by General K. M. Arif who acknowledged it and other PAEC cold tests in Deception, thus: