The following is an excerpt from a new assessment by the Institute  for Science and International Security (ISIS) about Russian scientist  Vycheslav Danilenko, who worked in Iran from 1996 until 2002 and  reportedly may have provided assistance to Iran on explosive technology  that could be used in its nuclear device. A link to the full report is  at the bottom.
by David Albright, Paul Brannan, Mark Gorwitz and Andrea Stricker
The November 8, 2011 International Atomic Energy Agency (IAEA) safeguards report on  Iran identifies a foreign expert that may have been important to Iran’s  development of implosion detonation systems used in nuclear weapons.  The Agency writes in the report that it has “strong indications that the  development by Iran of the high explosives initiation system, and its  development of the high speed diagnostic configuration used to monitor  related experiments, were assisted by the work of a foreign expert who  was not only knowledgeable in these technologies, but who, a Member  State has informed the Agency, worked for much of his career with this  technology in the nuclear weapon programme of the country of his  origin.”
Information in other IAEA documents reviewed by ISIS identifies this person as Vycheslav V. Danilenko1.   Born in 1934, Danilenko worked in the nuclear weapon complex at VNIITF,  Chelyabinsk-70 for three decades.  At VNIITF in the early 1960s, he was  a member of the gas dynamics group and became involved in the study of  the manufacture of synthetic diamonds. He worked with leading explosives  experts in the Soviet nuclear weapons program and developed  understanding of the fundamentals of detonation, including shock  compression. In 1960, the head of VNIIF, B. I. Zababakhin, launched the  institute’s research into the possibility of diamond synthesis by using  the shock compression of graphite. Leading Soviet nuclear weapons  experts were leaders in this effort in the early 1960s. In a recent book  chapter Danilenko says that “experiments aimed at developing methods  for synthesis were highly classified; for security reason, the results  were initially contained only in secret reports from VNIITF.”  According to IAEA officials, he likely had knowledge of the application  of high explosives in the Soviet nuclear weapons program.  Given his  background and experience, this ex-Soviet nuclear weapons expert was  well versed in key aspects of developing nuclear weapons.
Danilenko  also has experience in the important area of the diagnostics of high  explosions. His publications include work on high-speed photography and  describe optical techniques by which fiber optic cables are used to  capture the time of arrival of explosive shock waves.
After  leaving VNIITF in either 1989 or 1991, Danilenko moved to Ukraine and  established the company ALIT in Kiev, producing ultra-dispersed diamonds  (UDD or nanodiamonds). He experienced economic difficulties by the  mid-1990s. According to the IAEA, he contacted the Iranian embassy in  mid-1995, offering his expertise on UDD. At the end of the year, he was  contacted by Dr. Seyed Abbas Shahmoradi, who headed the Physics Research  Center and also worked at the Sharif University of Technology.  Danilenko signed a contract with Shahmoradi, according to IAEA documents. 
As  head of Iran’s secret nuclear sector involved in the development of  nuclear weapons, Shahmoradi would have undoubtedly recognized  Danilenko’s value to an incipient nuclear weapons effort. Synthetic  diamond production is unlikely to have been a priority, although it has  obvious value as a cover story. In assessing the important contributions  make by scientists and engineers to secret proliferant state nuclear  programs, ISIS has not found any that did not initially offer other,  more benign assistance that provided a plausible cover for their secret  nuclear assistance.  In some cases, their intention was originally  benign but they were lured by money to assist in sensitive nuclear  areas.
According to the recent IAEA safeguards  report, Danilenko worked in Iran from about 1996 until about 2002,  “ostensibly to assist Iran in the development of a facility and  techniques for making UDD, where he also lectured on explosion physics  and its applications.”  He told the IAEA that he lectured and  constructed an explosive firing cylinder which was not designed for  experiments on spherical systems.  In 2002, he returned to Russia.
The  IAEA has reviewed publications by Danilenko and has met with him. It  has been able to verify through three separate sources, including the  expert himself, that he was in Iran during that time.  Danilenko told  the IAEA that he does not exclude that his information was used for  other purposes. 
At the very least, Danilenko had  reason to know or should have known exactly why the Iranians were  interested in his research and expertise.  The IAEA information suggests  he provided more than he has admitted.
Nature of Assistance
The  IAEA obtained additional information that adds credibility to the  conclusion that Danilenko used his technical and practical knowledge and  expertise to provide assistance to Iran’s program to develop a suitable  initiation system for a nuclear explosive device. The IAEA assessed  that a monitoring, or diagnostic, technique described in one of his  papers had a remarkable similarity to one that the IAEA saw in material  from a member state about a hemispherical initiation and explosives  system developed in Iran (see below).  This system is also described in  the IAEA safeguards report as a multipoint initiation system used to  start the detonation of a nuclear explosive.
The  system that the IAEA says Iran was developing prior to 2004 was  relatively sophisticated and small in diameter. Iran is unlikely to have  been able to design it on its own.  According to the November 2011 IAEA  safeguards report, Iran is also believed to have obtained information  from the A.Q. Khan network on nuclear weapons design. But the initiation  and explosive system is sufficiently sophisticated that it points to a  contribution from Danilenko.
The multipoint  initiation system has a distributed array of explosive filled channels  on an aluminum hemisphere which terminate at holes containing explosive  pellets. The pellets simultaneously explode to initiate the entire outer  surface of a high explosive component in hemispherical form. The  experiments used a multitude of fiber optic cables and a high speed  streak camera to measure the time of arrival of first light across the  inner surface of an explosive component, thereby deducing the smoothness  of the detonation front at this surface…
On November 10, 2011, Reuters reported  on an interview with Danilenko by the Russian newspaper, Kommersant.   He reportedly stated to Kommersant, “I am not a nuclear physicist and am  not the founder of the Iranian nuclear program.”  He reportedly refused  to provide any additional information. It is not clear what questions  Kommersant asked Danilenko, but the November IAEA safeguards report does  not allege that Danilenko is a “founder” of Iran’s nuclear program, as  the program pre-dates the start of his assistance to Iran in the  mid-1990s.  Similarly, the IAEA never alleges that Danilenko is a  nuclear physicist, but rather that he may have assisted Iran in the  development of a spherical high explosives multipoint initiation  system.  It remains for Danilenko to more fully explain his assistance  to Iran.
For the full report, click here.
