Abdul Qadeer Khan
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Abdul Qadeer Khan
|Alma mater||University of Karachi|
Delft University of Technology
Catholic University of Louvain
|Known for||Pakistan's nuclear weapons program, gaseous diffusion, martensite and graphene morphology|
|Awards|| Nishan-i-Imtiaz (1996;1999)|
|Institutions||Khan Research Laboratories|
GIK Institute of Technology
|Thesis||The effect of morphology on the strength of copper-based martensites (1972)|
|Doctoral advisor||Martin J. Brabers|
Abdul Qadeer Khan [note 1] (/ / (listen); Urdu: عبد القدیر خان; born 1 April 1936) NI, HI, FPAS, DEng, known as A. Q. Khan, is a Pakistani nuclear physicist and metallurgist who is colloquially known as the "father of Pakistan's Nuclear Bomb". Khan is celebrated in Pakistan for bringing balance to the South Asian region after India's nuclear tests.
An émigré from India who migrated to Pakistan in 1951, Khan was educated in Western Europe's technical universities in metallurgical engineering where he pioneered studies in phase transitions of metallic alloys, uranium metallurgy, and isotope separation based on gas centrifuges. After learning of India's 'Smiling Buddha' nuclear test in 1974, Khan joined his nation's clandestine efforts to develop atomic weapons when he founded the Khan Research Laboratories (KRL) in 1976, and was both its chief scientist and director for many years.
In January 2004, Khan was subjected to a debriefing by the Musharraf administration over evidence of nuclear proliferation handed to them by the Bush administration of the United States. Khan admitted his role in running the proliferation network[vague] – only to retract his statements in later years when he leveled accusations at the former administration of Pakistan's Prime Minister Benazir Bhutto in 1990, and also directed allegations at President Musharraf over the controversy in 2008. After years of house arrest, Khan successfully filed a lawsuit against the Federal Government of Pakistan at the Islamabad High Court whose verdict declared his debriefing unconstitutional and freed him on 6 February 2009.
Early life and work
Abdul Qadeer Khan was born on 1 April 1936 in Bhopal, a city then in the erstwhile British Indian princely state of Bhopal State, and now the capital city of Madhya Pradesh. His family is of Orakzai (a Pashtun tribe) origin. His father, Abdul Ghafoor, was a schoolteacher who once worked for the Ministry of Education, and his mother, Zulekha, was a housewife with a very religious mind. His older siblings, along with other family members, had emigrated to Pakistan during the bloody partition of India (splitting off the independent state of Pakistan) in 1947, who would often write to Khan's parents about the new life they had found in Pakistan.
After his matriculation from a local school in Bhopal, in 1952 Khan emigrated from India to Pakistan on the Sind Mail train, partly due to the reservation politics:254 at that time, and religious violence in India during his youth had left an indelible impression on his world view. Upon settling in Karachi with his family, Khan briefly attended the D. J. Science College before transferring to the University of Karachi where he graduated in 1956 with a Bachelor of Science (BSc) in physics with a concentration on solid-state physics.
From 1956 to 1959, Khan was employed by the Karachi Metropolitan Corporation (city government) as an Inspector of weights and measures, and applied for a scholarship that allowed him to study in West Germany. In 1961, Khan departed for West Germany to study material science at the Technical University in West Berlin where he academically excelled in courses in metallurgy, but left West Berlin when he switched to the Delft University of Technology in the Netherlands in 1965. In 1967, Khan obtained an engineer's degree in Materials technology – an equivalent to a Master of Science (MS) offered in English-speaking nations such as Pakistan – and joined the doctoral program in metallurgical engineering at the Katholieke Universiteit Leuven in Belgium.
He worked under Belgian professor, Martin J. Brabers at Leuven University, who supervised his doctoral thesis which Khan successfully defended, and graduated with a DEng in metallurgical engineering in 1972. His thesis included fundamental work on martensite and its extended industrial applications in the field of graphene morphology. The same year, Khan joined the Physics Dynamics Research Laboratory (or in Dutch: FDO), an engineering firm based in Amsterdam, from Brabers's recommendation. The FDO was a subcontractor for the Urenco Group which was operating a uranium enrichment plant in Almelo and employed gaseous centrifuge method to assure a supply of nuclear fuel for nuclear power plants in the Netherlands. Soon after, Khan left FDO when Urenco offered him a senior technical position, initially conducting studies on the uranium metallurgy.:87
The uranium enrichment is an extremely difficult process because uranium in its natural state only comprises just 0.71% of uranium-235 (U235), which is a fissile material, 99.3% of uranium-238 (U238), which is non fissile, and 0.0055% of uranium-234 (U234), a daughter product which is also a non fissile. The Urenco Group utilized the Zippe-type of centrifugal method to electromagnetically separate the isotopes U234, U235, and U238 from sublimed raw uranium by rotating the uranium hexafluoride (UF6) gas at up to ~100,000 revolutions per minute (rpm).:49 Khan, whose work was based on physical metallurgy of the uranium metal,:87 eventually dedicated his investigations on improving the efficiency of the centrifuges by 1973–74.:140
Scientific career in Pakistan
Smiling Buddha and initiation
Upon learning of India's surprise nuclear test, 'Smiling Buddha' in May 1974, Khan wanted to contribute to efforts to build an atomic bomb and met with officials at the Pakistani Embassy in The Hague, who dissuaded him by saying it was "hard to find" a job in PAEC as a "metallurgist". In August 1974, Khan wrote a letter which went unnoticed, but he directed another letter through the Pakistani ambassador to the Prime Minister's Secretariat in September 1974.:140
Unbeknownst to Khan, his nation's scientists were already working towards feasibility of the atomic bomb under a secretive crash weapons program since 20 January 1972 that was being directed by Munir Ahmad Khan, a reactor physicist, which calls into question of his "father-of" claim.:72 After reading his letter, Prime Minister Zulfikar Ali Bhutto had his military secretary run a security check on Khan, who was unknown at that time, for verification and asked PAEC to dispatch a team under Bashiruddin Mahmood that met Khan at his family home in Almelo and directed Bhutto's letter to meet him in Islamabad.:141 Upon arriving in December 1974, Khan took a taxi straight to the Prime Minister's Secretariat. He met with Prime Minister Bhutto in the presence of Ghulam Ishaq Khan, Agha Shahi, and Mubashir Hassan where he explained the significance of highly enriched uranium with the meeting ending with Bhutto's remark: "He seems to make sense".:140–141:60–61
The next day, Khan met with Munir Ahmad and other senior scientists where he focused the discussion on production of highly enriched uranium (HEU), against weapon-grade plutonium, and explained to Bhutto why he thought the idea of "plutonium" would not work.:143–144 Later, Khan was advised by several officials in the Bhutto administration to remain in the Netherlands to learn more about centrifuge technology but continue to provide consultation on the Project-706 enrichment program led by Mahmood.:143–144 By December 1975, Khan was given a transfer to a less sensitive section when Urenco Group became suspicious of his indiscreet open sessions with Mahmood to instruct him on centrifuge technology. Khan began to fear for his safety in the Netherlands, ultimately insisting on returning home.:147
Khan Research Laboratories and atomic bomb program
In April 1976, Khan joined the atomic bomb program and became part of the enrichment division, initially collaborating with Khalil Qureshi – a physical chemist.:62–63 Calculations performed by him were valuable contributions to centrifuges and a vital link to nuclear weapon research but continue to push for his ideas for feasibility of weapon-grade uranium even though it had a low priority, with most efforts still aimed to produce military-grade plutonium.:73–74 Because of his interest in uranium metallurgy and his frustration at having been passed over for director of the uranium division (the job was instead given to Bashiruddin Mahmood), Khan refused to engage in further calculations and caused tensions with other researchers.:147–148 Khan became highly unsatisfied and bored with the research led by Mahmood – finally, he submitted a critical report to Bhutto, in which he explained that the "enrichment program" was nowhere near success.:62–63
Upon reviewing the report, Bhutto sensed a great danger as the scientists were split between military-grade uranium and plutonium and informed Khan to take over the enrichment division from Mahmood who separated the program from PAEC by founding the Engineering Research Laboratories (ERL).:63–64:149–150 The ERL functioned directly under the Army's Corps of Engineers, with Khan being its chief scientist, and the army engineers located the national site at isolated lands in Kahuta for the enrichment program as ideal site for preventing accidents.
The PAEC did not forgo their electromagnetic isotope separation program, and a parallel program was led by G. D. Alam at the Air Research Laboratories (ARL) located at Chaklala Air Force Base, even though Allam had not seen a centrifuge, and only had a rudimentary knowledge of the Manhattan Project.:72–110:144 During this time, Alam accomplished a great feat by perfectly balancing the rotation of the first generation of centrifuge to ~30,000 rpm and was immediately dispatch to ERL which was suffering from many setbacks in setting up its own program under Khan's direction based on centrifuge technology dependent on Urenco's methods.:75–76 Khan eventually committed to work on problems involving the differential equations concerning the rotation around fixed axis to perfectly balance the machine under influence of gravity and the design of first generation of centrifuges became functional after Khan and Alam succeeded in separating the 235U and 238U isotopes from raw natural uranium.:78–79
In the military circles, Khan's scientific ability was well recognized and was often known with his moniker "Centrifuge Khan":151 and the national laboratory was renamed after him upon the visit of President Muhammad Zia-ul-Haq in 1983. In spite of his role, Khan was never in charge of the actual designs of the nuclear devices, their calculations, and eventual weapons testing which remained under the directorship of Munir Ahmad Khan and the PAEC.
The PAEC's senior scientists who worked with him and under him remember him as "an egomaniacal lightweight" given to exaggerating his scientific achievements in centrifuges. At one point, Munir Khan said that, "most of the scientists who work on the development of atomic bomb projects were extremely "serious". They were sobered by the weight of what they don't know; Abdul Qadeer Khan is a showman." During the timeline of the bomb program, Khan published papers on analytical mechanics of balancing of rotating masses and thermodynamics with mathematical rigor to compete, but still failed to impress his fellow theorists at PAEC, generally in the physics community. In later years, Khan became a staunch critic of Munir Khan's research in physics, and on many occasions tried unsuccessfully to belittle Munir Khan's role in the atomic bomb projects. Their scientific rivalry became public and widely popular in the physics community and seminars held in the country over the years.
Nuclear tests: Chagai-I
Many of his theorists were unsure that military-grade uranium would be feasible on time without the centrifuges, since Alam had notified PAEC that the "blueprints were incomplete" and "lacked the scientific information needed even for the basic gas-centrifuges.":75–76:145–146 Calculations by Tasneem Shah, and confirmed by Alam, showed that Khan's earlier estimation of the quantity of uranium needing enrichment for the production of weapon-grade uranium was possible, even with the small number of centrifuges deployed.:77
Khan stole the designs of the centrifuges from Urenco Group. However, they were riddled with serious technical errors, and while he bought some components for analysis, they were broken pieces, making them useless for quick assembly of a centrifuge. Its separative work unit (SWU) rate was extremely low, so that it would have to be rotated for thousands of RPMs at the cost of millions of taxpayers money, Allam maintained. Though Khan's knowledge of copper metallurgy greatly aided the [clarify] it was the calculations and validation that came from his team of fellow theorists, including mathematician Tasneem Shah and Alam, who solved the differential equations concerning rotation around a fixed axis under the influence of gravity, which led Khan to come up with the innovative centrifuge designs.:146
Scientists have claimed that Khan would have never gotten any closer to success without the assistance of Alam and others. The issue is controversial;:79 Khan maintained to his biographer that when it came to defending the centrifuge approach and really putting work into it, both Shah and Alam refused.:79–80
Khan was also very critical of PAEC's concentrated efforts towards developing a plutonium 'implosion-type' nuclear devices and provided strong advocacy for the relatively simple 'Gun-type' device that only had to work with high-enriched uranium— a design concept of gun-type device he eventually submitted to Ministry of Energy (MoE) and Ministry of Defense (MoD).:152 Khan downplayed the importance of plutonium despite many of the theorists maintaining that "plutonium and the fuel cycle has its significance", and he insisted on the uranium route to the Bhutto administration when France's offer for an extraction plant was in the offing.
Though he had helped to come up with the centrifuge designs, and had been a long-time proponent of the concept, Khan was not chosen to head the development project to test his nation's first nuclear-weapons (his reputation of a thorny personality likely played a role in this) after India conducted its series of nuclear tests, 'Pokhran-II' in 1998. Intervention by the Chairman Joint Chiefs, General Jehangir Karamat, allowed Khan to be a participant and eye-witness his nation's first nuclear test, 'Chagai-I' in 1998. At a news conference, Khan confirmed the testing of the boosted fission devices while stating that it was KRL's highly enriched uranium (HEU) that was used in the detonation of Pakistan's first nuclear devices on 28 May 1998.
Many of Khan's colleagues were irritated that he seemed to enjoy taking full credit for something he had only a small part in, and in response, he authored an article, Torch-Bearers, which appeared in The News International, emphasising that he was not alone in the weapon's development. He made an attempt to work on the Teller–Ulam design for the hydrogen bomb, but the military strategists had objected to the idea as it went against the government's policy of minimum credible deterrence.:108 Khan often got engrossed in projects which were theoretically interesting but practically unfeasible.
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In the 1970s, Khan had been very vocal about establishing a network to acquire imported electronic materials from the Dutch firms and had very little trust of PAEC's domestic manufacturing of materials, despite the government accepting PAEC's arguments for the long term sustainability of the nuclear weapons program.:148 At one point, Khan reached out to China for acquiring the uranium hexafluoride (UF6) when he attended a conference there— the Pakistani Government sent it back to China, asking KRL to use the UF6 supplied by PAEC.:150–151
In 1982, an unnamed Arab country reached out to Khan for the sale of centrifuge technology. Khan was very receptive to the financial offer, but one scientist alerted the Zia administration which investigated the matter, only for Khan to vehemently deny such an offer was made to him. The Zia administration tasked Major-General Ali Nawab, an engineering officer, to keep surveillance on Khan, which he did till 1983 when he retired from his military service, and Khan's activities went undetected for several years after.
Court controversy and U.S. objections
In 1979, the Dutch government eventually probed Khan on suspicion of nuclear espionage but he was not prosecuted due to lack of evidence, though it did file a criminal complaint against him in a local court in Amsterdam, which sentenced him in absentia in 1985 to four years in prison. Upon learning of the sentence, Khan filed an appeal through his attorney, S.M. Zafar, who teamed up with the administration of Leuven University, and successfully argued that the technical information requested by Khan was commonly found and taught in undergraduate and doctoral physics at the university— the court exonerated Khan by overturning his sentence on a legal technicality.:35 Reacting to the suspicions of espionage, Khan stressed that: "I had requested for it as we had no library of our own at KRL, at that time. All the research work [at Kahuta] was the result of our innovation and struggle. We did not receive any technical "know-how" from abroad, but we cannot reject the use of books, magazines, and research papers in this connection."
In 1979, the Zia administration, which was making an effort to keep their nuclear capability discreet to avoid pressure from the Reagan administration of the United States (US), nearly lost its patience with Khan when he reportedly attempted to meet with local journalist to announce the existence of the enrichment program.:82 During the Indian Operation Brasstacks military exercise in 1987, Khan gave another interview to local press and stated: the Americans had been well aware of the success of the atomic quest of Pakistan, allegedly confirming the speculation of technology export. At both instances, the Zia administration sharply denied Khan's statement and President Zia furiously met with Khan and used a "tough tone", promising Khan severe repercussions had he not retracted all of his statements, which Khan immediately did by contacting several news correspondents.
In 1996, Khan again appeared on his country's news channels and maintained that "at no stage was the program of producing 90% weapons-grade enriched uranium ever stopped", despite Benazir Bhutto's administration reaching an understanding with the US Clinton administration to cap the program to 3% enrichment in 1990.
North Korea, Iran and Libya
The innovation and improved designs of centrifuges were marked as classified for export restriction by the Pakistan government, though Khan was still in possession of earlier designs of centrifuges from when he worked for Urenco Group in the 1970s.:156–158 In 1990, the United States alleged that highly sensitive information was being exported to North Korea in exchange for rocket engines. On multiple occasions, Khan leveled accusations against Benazir Bhutto's administration of providing secret enrichment information, on a compact disc (CD), to North Korea; these accusations were denied by Benazir Bhutto's staff and military personnel.:113–114
Between 1987 and 1989, Khan secretly leaked knowledge of centrifuges to Iran without notifying the Pakistan Government, although this issue is a subject of political controversy. In 2003, the European Union pressured Iran to accept tougher inspections of its nuclear program and the International Atomic Energy Agency (IAEA) revealed an enrichment facility in the city of Natanz, Iran, utilizing gas centrifuges based on the designs and methods used by Urenco Group. The IAEA inspectors quickly identified the centrifuges as P-1 types, which had been obtained "from a foreign intermediary in 1989", and the Iranian negotiators turned over the names of their suppliers, which identified Khan as one of them.
In 2003, Libya negotiated with the United States to roll back its nuclear program to have economic sanctions lifted, effected by the Iran and Libya Sanctions Act, and shipped centrifuges to the United States that were identified as P-1 models by the American inspectors. Ultimately, the Bush administration launched its investigation of Khan, focusing on his personal role, when Libya handed over a list of its suppliers.
Security hearings, pardon and aftermath
Since 2001, Khan had been serving as an adviser on science and technology in the Musharraf administration and had become a public figure who enjoyed much support from his country's political conservative sphere. In 2003, the Bush administration reportedly turned over evidence of a nuclear proliferation network that implicated Khan's role to the Musharraf administration. Khan was dismissed from his post on 31 January 2004. On 4 February 2004, Khan appeared on Pakistan Television (PTV) and confessed to running a proliferation ring, and transferring technology to Iran between 1989 and 1991, and to North Korea and Libya between 1991 and 1997. The Musharraf administration avoided arresting Khan but launched security hearings on Khan who confessed to the military investigators that former Chief of Army Staff General Mirza Aslam Beg had given authorization for technology transfer to Iran.
On 5 February 2004, President Pervez Musharraf issued a pardon to Khan as he feared that the issue would be politicized by his political rivals. Despite the pardon, Khan, who had strong conservative support, had badly damaged the political credibility of the Musharraf administration and the image of the United States who was attempting to win hearts and minds of local populations during the height of the Insurgency in Khyber Pakhtunkhwa. While the local television news media aired sympathetic documentaries on Khan, the opposition parties in the country protested so strongly that the U.S. Embassy in Islamabad had pointed out to the Bush administration that the successor to Musharraf could be less friendly towards the United States. This restrained the Bush administration from applying further direct pressure on Musharraf due to a strategic calculation that it might cause the loss of Musharraf as an ally.
In December 2006, the Weapons of Mass Destruction Commission (WMDC), headed by Hans Blix, confessed that Khan could not have acted alone "without the awareness of the Pakistan Government". Blix's statement was also reciprocated by the United States government, with one anonymous American government intelligence official quoted by independent journalist and author Seymour Hersh: "Suppose if Edward Teller had suddenly decided to spread nuclear technology around the world. Could he really do that without the American government knowing?".
In 2007, the U.S. and European Commission politicians as well as IAEA officials had made several strong calls to have Khan interrogated by IAEA investigators, given the lingering scepticism about the disclosures made by Pakistan, but Prime Minister Shaukat Aziz, who remained supportive of Khan and spoke highly of him, strongly dismissed the calls by terming it as "case closed".
In 2008, the security hearings were officially terminated by Chairman joint chiefs General Tariq Majid who marked the details of debriefings as "classified". In 2008, in an interview, Khan laid the whole blame on former President Pervez Musharraf, and labelled Musharraf as the "Big Boss" for proliferation deals. In 2012, Khan also implicated Benazir Bhutto's administration in proliferation matters, pointing to the fact as she had issued "clear directions in thi[s] regard."
Government work, academia, and political advocacy
Khan's strong advocacy for nuclear sharing of technology eventually led to his ostracization by much of the scientific community, but Khan was still quite welcome in his country's political and military circles.:151 After leaving the directorship of the Khan Research Laboratories in 2001, Khan briefly jod the Musharraf administration as a policy adviser on science and technology on a request from President Musharraf. In this capacity, Khan promoted increased defense spending on his nation's missile program to counter the perceived threats from the Indian missile program and advised the Musharraf administration on space policy. He presented the idea of using the Ghauri missile system as an expendable launch system to launch satellites into space.
At the height of the proliferation controversy in 2007, Khan was paid tribute by Prime Minister Shaukat Aziz on state television while commenting in the last part of his speech, Aziz stressed: "(...)....The services of (nuclear) scientist... Dr. (Abdul) Qadeer Khan are "unforgettable" for the country..(..)....".
In the 1990s, Khan secured a fellowship with the Pakistan Academy of Sciences— he served as its president in 1996–97. Khan published two books on material science and started publishing his articles from KRL in the 1980s. Gopal S. Upadhyaya, an Indian metallurgist who attended Khan's conference and met him along with Kuldip Nayar, reportedly described him as: Khan was a proud Pakistani who wanted to show the world that scientists from Pakistan are inferior to no one in the world. Khan also served as project director of Ghulam Ishaq Khan Institute of Engineering Sciences and Technology and briefly tenured as professor of physics before joining the faculty of the Hamdard University; he remains on the board of directors of the university. Later, Khan helped established the A. Q. Khan Institute of Biotechnology and Genetic Engineering at Karachi University.
During his time in the atomic bomb project, Khan pioneered research in the Thermal quantum field theory and Condensed matter physics, while he co-authored articles on chemical reactions of the highly unstable isotope particles in the controlled physical system. He maintains his stance of the use of controversial technological solutions to both military and civilian problems, including the use of military technologies for civilian welfare. Khan also remained a vigorous advocate for a nuclear testing program and defense strength through nuclear weapons. He has justified Pakistan's nuclear deterrence program as sparing his country the fate of Iraq or Libya. In an interview in 2011, Khan maintained his stance on peace through strength and vigorously defended the nuclear weapons program as part of the deterrence policy:
[P]akistan's motivation for nuclear weapons arose from a need to prevent "nuclear blackmail" by India. Had Iraq and Libya been nuclear powers, they wouldn't have been destroyed in the way we have seen recently.... If (Pakistan) had an [atomic] capability before 1971, we [Pakistanis] would not have lost half of our country after a disgraceful defeat.— Abdul Qadeer Khan, statement on 16 May 2011, published in Newsweek, 
During his work on the nuclear weapons program and onwards, Khan faced heated and intense criticism from his fellow theorists, most notably Pervez Hoodbhoy who contested his scientific understanding in quantum physics. In addition, Khan's false claims that he was the "father" of the atomic bomb project since its inception and his personal attacks on Munir Ahmad Khan caused even greater animosity from his fellow theorists, and most particularly, within the general physics community, such as the Pakistan Physics Society.
In spite of the proliferation controversy and his volatile personality, Khan remains a popular public figure and has been as a symbol of national pride with many in Pakistan who see him as a national hero. In Pakistani news media, and foreign media outlets, Khan has been depicted as Pakistan's own Dr. Strangelove (commonly referred to Edward Teller) in Stanley Kubrick's 1964 satirical film of the same name. While Khan has been bestowed with many medals and honours by the federal government and universities in Pakistan, Khan also remains the only citizen of Pakistan to have honoured twice with Nishan-e-Imtiaz.
Selected research papers and patents
Nuclear and Material physics
- Dilation investigation of metallic phase transformation in 18% Ni maraging steels, Proceedings of the International Conf. on Martensitic Transformations (1986), The Japan Institute of Metals, pp. 560–565.
- The spread of Nuclear weapons among nations: Militarization or Development, pp. 417–430. (Ref. Nuclear War Nuclear Proliferation and their consequences "Proceedings of the 5th International Colloquium organised by the Group De Bellerive Geneva 27–29 June 1985", Edited by: Sadruddin Aga Khan, Published by Clarendon Press-Oxford 1986).
- Flow-induced vibrations in Gas-tube assembly of centrifuges. Journal of Nuclear Science and Technology, 23(9), (September 1986), pp. 819–827.
- Dimensional anisotropy in 18% of maraging steel, Seven National Symposium on Frontiers in Physics, written with Anwar-ul-Haq, Mohammad Farooq, S. Qaisar, published at the Pakistan Physics Society (1998).
- Thermodynamics of Non-equilibrium phases in Electron-beam rapid solidification, Proceedings of the Second National Symposium on Frontiers in Physics, written with A. Tauqeer, Fakhar Hashmi, publisher Pakistan Physics Society (1988).
- Khan, Abdul Qadeer (1972). Advances in Physical Metallurgy (in English, German, and Dutch). Amsterdam, Netherlands: Elsevier Press.
- Khan, Abdul Qadeer (1983). Metallurgical Thermodynamics and Kinetics (in English, German, and Dutch). Islamabad, Pakistan: The Proceedings of the Pakistan Academy of Sciences.
- Khan, Abdul Qadeer; Hussain, Syed Shabbir; Kamran, Mujahid (1997). Dr. A.Q. Khan on science and education. Islamabad, Pakistan: Sang-e-Meel Publications. ISBN 978-969-35-0821-5.
- His name can be spelled in various ways; the Pakistan Academy of Sciences (PAS) and the Islamic Academy of Science spell his name Abdul Qaudeer Khan. Other educational organizations might spell his name Abdul Qadir Khan or Abdul Kadeer Khan. Alternative spellings for his name are Gaudeer or Gadeer. Khan's birth certificate reads "Abdul Qadeer Khan".
- "The Wrath of Khan". The Atlantic. 4 February 2004. Retrieved 26 September 2010.
- Qadeer Khan | Pakistani scientist | Britannica.com
- "Pakistan's Nuclear Deterrence and Strategic Stability". E-International Relations. 28 June 2016. Retrieved 17 March 2021.
- "Pakistan's nuclear policy: impact on strategic stability in South Asia". Daily Times. 27 June 2018. Retrieved 17 March 2021.
- "A.Q. Khan & Iran". Global Security. Retrieved 24 November 2014.
- The New York Times Staff (16 April 2006). "Chronology: A.Q. Khan". The New York Times. Retrieved 24 November 2014.
- "Mush helped proliferate N-technology : AQ Khan". The Times of India. 6 July 2008.
- "AQ Khan". Global Security.
- Rashid, Ahmed (2012). Pakistan in the Brink. Allen Lane. p. 60-61. ISBN 9781846145858.
- "IHC declares Dr A Q Khan a free citizen". GEO.tv. 6 February 2009. Archived from the original on 15 April 2012. Retrieved 26 September 2010.
- Rashid, Ahmed (2012). Pakistan in the Brink. Allen Lane. p. 63-64. ISBN 9781846145858.
- Warrick, Joby Warrick (7 February 2009). "Nuclear Scientist A.Q. Khan Is Freed From House Arrest". The Washington Post. Retrieved 2 October 2016.
- TV, Riphah. "Dr Abdul Qadeer khan Share his Experience Must Watch - YouTube". www.youtube.com. Retrieved 30 July 2020.
- Times, The New York (16 April 2006). "Chronology: A.Q. Khan". The New York Times.
- "Dr. Abdul Qadeer Khan". storyofpakistan.com/. Islamabad: Story of Pakistan Press Foundation. 17 October 2013. p. 1. Retrieved 22 January 2015.
- Ansari, Iqbal Ahmad (2006). Political representation of Muslims in India, 1952-2004 (1st ed.). New Delhi, India: Manak Publications. p. 418. ISBN 9788178271309.
- "The mysterious world of Pakistan's Dr Strangelove". 7 February 2004.
- Bernstein, Jeremy (2014). "§Unintended Consequences". Nuclear Iran. United States: Harvard University Press. pp. 66–67. ISBN 978-0674744561.
- "Karachi University Physics Department alumni". Karachi University. Retrieved 22 January 2015.
- "Profile: Abdul Qadeer Khan". 20 February 2004 – via BBC News.
- "Dr. Abdul Qadeer Khan, Founder and Ex-Chairman Dr. A Q Khan Research Laboratories". Pakistanileaders. Archived from the original on 29 September 2010. Retrieved 26 September 2010.
- Bowcott, Owen (6 February 2009). "Profile: Abdul Qadeer Khan". the Guardian.
- Khan, Abdul Qadeer (March 1972). The effect of morphology on the strength of copper-based martensites (PhD). thesis prepared under the supervision of Professor Martin J. Brabers. Leuven, Belgium: Faculty of Applied Sciences, University of Leuven.
- Rehman, Shahidur (May 1999), "§Dr. A. Q. Khan: Nothing Succeed like Success", Long Road to Chagai, Islamabad, Islamabad Capital Territory: Printwise Publications, pp. 47–60, ISBN 969-8500-00-6
- (Bernstein 2008, pp. 51–52)
- Khan, Abdul Qadeer (1987). Sreedhar, VVS (ed.). Dr. A.Q. Khan on Pakistan Bomb (google books). Islamabad: ABC Publishing House. p. 180. Retrieved 2 July 2020.
- "The technology of mining and metallurgy". archive.unu.edu. UNU publication on metallurgy. Retrieved 2 July 2020.
- Khan, Feroz Hassan (7 November 2012). "The clash of the Khans:Centrifuge Khan vs. Reactor Khan". Eating grass : the making of the atomic bomb. Stanford, California: Stanford University Press. p. 552. ISBN 978-0804776011. Viewed 7 January 2013.
- History Commons. "Profile: Abdul Qadeer Khan". History Commons.
- Shahid-ur-Rehman (1999). "The Gas centrifuge controversy"". Long road to Chagai. Islamabad: Shahid-ur-Rehman, 1999. ISBN 969-8500-00-6.
- Shabbir, Usman (5 June 2003). "The Uranium Route to the Bomb". PakDef Military Consortium. Islamabad, Pakistan: Usman Shabbir, special report on Pakistan's atomic bomb program. Archived from the original on 20 January 2015. Retrieved 20 January 2015.
- Edward Nasim (23 July 2009). "Interview with Sultan Bashir Mahmood". Scientists of Pakistan. Season 1. 0:30 minutes in. Nawa-e-Waqt. Capital Studios.
- Niazi, Kausar (1991). "Reprocessing Plant–The Inside Story)". In Panwar, Sani (ed.). Last Days of Premier Bhutto (PDF) (1st ed.). Karachi, Sind, Pak.: Jang Publishers. p. 191. Retrieved 3 July 2020.
- Khan, A. Qadeer (29 July 2009). "Bhutto, Zia-ul-Haq And Kahuta". A.Q. Khan. draqkhan.com. Archived from the original on 7 October 2011.
- John Pike. "A.Q. Khan". Globalsecurity.org. Retrieved 26 September 2010.
- Sublette, Carey; et al. (2 January 2002). "Dr. Abdul Qadeer Khan". Nuclear Weapon Archives, Reuters and Los Angeles Times news reports were used in preparing this article. Nuclear weapon archives. p. 1. Retrieved 18 October 2012.
- "The Wrath of Khan – Magazine". The Atlantic. 4 February 2004. Retrieved 26 September 2010.
- (Rahman 1998, pp. 59–60)
- (Rahman 1998, pp. 60)
- "Zulfikar Ali Bhutto". Historycommons.org. Archived from the original on 15 June 2011. Retrieved 26 September 2010.
- Azam, Rai Muhammad Saleh (20 June 1998). "Where Mountains Move: The Story of Chagai". Special editorial work prepared and published by Rai Muhammad Saleh Azam in 1998. Islamabad: The Nation, 1999. The Nation. Archived from the original on 20 January 2015. Retrieved 20 January 2015.
- See: Project Hydrogen
- "Interview of Dr. Samar Mubarak-Head of Pakistan Missile program". Hamid Mir.
- Armstrong, David; Joseph John Trento; National Security News Service (2007). America and the Islamic Bomb: The Deadly Compromise. Steerforth Press. p. 165. ISBN 9781586421373.
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The services of Nuclear Scientist Dr. Qadeer Khan are unforgettable for the country; we will not hand him over to any other country...
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- Bernstein, Jeremy (2008). Physicists on Wall Street and other essays on science and society. New York: Springer. ISBN 978-0387765068.
- Why He Went Nuclear by Douglas Frantz and Catherine Collins
- Written by Abdul Qadeer Khan
- Heart disease Random thoughts 11 June 2012
- More on thalassemia 4 June 2012
- Memorable Karachi 28 May 2012
- Great expectations 14 May 2012
- Mass graves 30 April 2012
- I saved my country 1 November 2012
- Online books
- Scott-Clark, Adrian Levy & Catherine (2007). Deception : Pakistan, the United States, and the secret trade in nuclear weapons (1st ed.). New York: Walker & Co. ISBN 978-0-8027-1554-8.
- Upadhyaya, Gopal S. (1 May 2011). "Dr. A.Q. Khan of Pakistan". Men of metals and materials : my memoirs. Bloomington, IN: iUniverse. p. 138. ISBN 978-1-4620-1840-6.
| Science Advisor to the Presidential Secretariat
1 January 2001 – 31 January 2004
Atta ur Rahman