Analytical Chemistry of Uranium: Environmental, Forensic, by Zeev Karpas

By Zeev Karpas

Accurate uranium research, and especially for isotope measurements, is key in lots of fields, together with environmental reviews, geology, hydrogeology, the nuclear undefined, well-being physics, and place of birth safeguard. however, just a couple of clinical books are devoted to uranium generally and analytical chemistry points particularly. Analytical Chemistry of Uranium: Environmental, Forensic, Nuclear, and Toxicological purposes covers the attention-grabbing advances within the box of analytical chemistry of uranium.

Exploring a huge diversity of themes, the e-book specializes in the analytical facets of commercial techniques that contain uranium, its presence within the surroundings, well-being and organic implications of publicity to uranium compounds, and nuclear forensics.

Topics include:

  • Examples of approaches used to signify uranium in environmental samples of soil, sediments, crops, water, and air
  • Analytical equipment used to ascertain the rigorous requisites of uranium and its compounds deployed within the nuclear gasoline cycle
  • Health elements of publicity to uranium and the bioassays used for publicity review
  • Up-to-date analytical options utilized in nuclear forensics for safeguards in help of non-proliferation, together with unmarried particle characterization

Each bankruptcy comprises an summary of the subject and a number of other examples to illustrate the analytical approaches. this can be through pattern training, separation and purification concepts the place helpful. The booklet offers readers with a high-quality realizing of the analytical chemistry strategy used this present day for characterizing the several points of uranium, delivering a very good start line for additional research into this significant element.

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Extra resources for Analytical Chemistry of Uranium: Environmental, Forensic, Nuclear, and Toxicological Applications

Sample text

3). 7 The mass distribution of the fission products from MOX fuel. png, accessed July 26, 2014. B. , New York, 1996. a There are slightly different values in different sources. Natural (NU or Unat), depleted (DU), low-enriched (LEU), and high-enriched (HEU) uranium: the content of the only natural fissile isotope, 235U—is an important feature of uranium applications and value. 2). 720% and just below 20%, while HEU encompasses uranium with 235U content above 20%. The 20% borderline between LEU and HEU is artificial and was based on the assumption that nuclear weapons with 20% or less 235 U would not be efficient.

Uranium of this composition is suitable for use as nuclear fuel in reactors that operate with heavy water (D2O) such as CANDU reactors or graphite (such as the old Magnox reactors) as the moderator for slowing neutrons. In this case, the UO2 is ground and sintered to form pellets that will be placed in fuel elements (see Chapter 2 for analytical procedures to characterize these pellets). 4 describes the process used in India for production of UO2 powder, pellets, and fuel elements as an example of the processes in the UCF.

In principle, the fluoride volatility process has fewer stages and is simpler than the conventional process. It consists of reduction of the UOC (yellow cake) to UO2 with hydrogen (derived from cracking ammonia) followed by hydrofluorination to produce UF4 (green salt) and then fluorination to produce UF6 (hex). In principle, uranium ore concentrates may be directly fluorinated to produce UF6, but this process consumes large amounts of fluorine and is not applied commercially. 5. 11 Comparison of two processes for production of UF6 from uranium ore concentrates: the classic process and the Honeywell fluoride volatility process.

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