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Profile: Edward Von Halle

 
  

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Edward Von Halle actively participated in the following events:

 
  

(Mid-July 2001)-August 17, 2001      Complete Iraq timeline

       Almost immediately after Joe T.'s theory is circulated through US intelligence and science circles, a team of centrifuge physicists at the US Department of Energy's Oak Ridge National Laboratory and other similar institutions review the case. [Washington Post, 8/10/03; Australian Broadcasting Corporation; New York Times, 10/3/2004] The team includes Dr. Jon A. Kreykes, head of Oak Ridge's national security advanced technology group; Dr. Duane F. Starr, an expert on nuclear proliferation threats; and Dr. Edward Von Halle, a retired Oak Ridge nuclear expert. They are advised by Dr. Houston G. Wood III, a retired Oak Ridge physicist considered to be “among the most eminent living experts” on centrifuges, and Dr. Gernot Zippe, one of the German scientists who developed an early uranium centrifuge in the 1950s (see 1950s). On August 17, the team publishes a classified Technical Intelligence Note which details why they believe the 7075-T6 aluminum tubes sought by Iraq were not intended for use in a gas centrifuge. [New York Times, 10/3/2004]
The tubes sought by Iraq are very different from tubes Iraq used previously in its centrifuge prototypes before the first Gulf War. The intercepted aluminum tubes are significantly longer and narrower. [Washington Post, 8/10/03; New York Times, 10/3/2004]
Aluminum has not been used in gas centrifuges since the 1950s (see After the 1950s). Furthermore, Iraq is known to have had the blueprints for a more efficient centrifuge, which used maraging steel and carbon fiber, not aluminum (see (Late 1980s)). [Washington Post, 8/10/03] “Aluminum was a huge step backwards,” Dr. Houston Wood will later explain to the New York Times. [New York Times, 10/3/2004]
There are no known centrifuge machines “deployed in a production environment” that use tubes with such a small diameter. [New York Times, 10/3/2004]
The tubes' walls, measuring 3.3 millimeters, are three times too thick for “favorable use” in a “Zippe-type” centrifuge, which requires tubes with a thickness of no more than 1.1 millimeter. [New York Times, 10/3/2004; Washington Post, 8/10/03]
The tubes are anodized, which is “not consistent” with a uranium centrifuge because the anodized coating can react with uranium gas. [New York Times, 10/3/2004] Houston G. Wood later tells The Washington Post in mid-2003 that “it would have been extremely difficult to make these tubes into centrifuges,” adding that it stretched “the imagination to come up with a way.” [Washington Post, 8/10/03] Though the scientists' report concludes that “rocket production is the much more likely end use for these tubes,” [New York Times, 10/3/2004] Joe T. sticks with his theory. His position is backed by CIA director George Tenet. [Australian Broadcasting Corporation]
People and organizations involved: George Tenet, Joe T., Gernot Zippe, Houston G. Wood III, Edward Von Halle, Jon A. Kreykes, Duane F. Starr
          

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