Ads
related to: what is pu 239 form california free printable lease agreement template word
Search results
Results from the WOW.Com Content Network
Moreover, 239 Pu and 240 Pu cannot be chemically distinguished, so expensive and difficult isotope separation would be necessary to separate them. Weapons-grade plutonium is defined as containing no more than 7% 240 Pu; this is achieved by only exposing 238 U to neutron sources for short periods of time to minimize the 240 Pu produced.
Neutrons from the fission of uranium-235 are captured by uranium-238 nuclei to form uranium-239; a beta decay converts a neutron into a proton to form neptunium-239 (half-life 2.36 days) and another beta decay forms plutonium-239. [28] Egon Bretscher working on the British Tube Alloys project predicted this reaction theoretically in 1940. [29]
Pu(C 2 O 4) 2 + 3 F 2 → PuF 6 + 4 CO 2. Alternatively, plutonium(IV) fluoride oxidizes in an 800-°C oxygen atmosphere to plutonium hexafluoride and plutonium(IV) oxide: [7] 3 PuF 4 + O 2 → 2 PuF 6 + PuO 2. In 1984, the synthesis of plutonium hexafluoride at near–room-temperatures was achieved through the use of dioxygen difluoride.
Special nuclear material (SNM) is a term used by the United States Nuclear Regulatory Commission to classify fissile materials.The NRC divides special nuclear material into three main categories, according to the risk and potential for its direct use in a clandestine nuclear weapon or for its use in the production of nuclear material for use in a nuclear weapon.
Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!
AOL Mail welcomes Verizon customers to our safe and delightful email experience!
Ads
related to: what is pu 239 form california free printable lease agreement template word