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THE RADIOCHEMISTRY OF ALUMINUM AND GALLIUM

Description: "Nuclear Science Series" of the National Research Council. Committee on Nuclear Science. A review of the nuclear and chemical features of these elements which are of particular interest to the radiochemist is presented. A discussion is also included on aspects of sample dissolution and counting techniques followed by a collection of radiochemical procedures for the elements as found in the literature. (J.R.D.)
Date: January 1, 1961
Creator: Lewis, J.E.
Partner: UNT Libraries Government Documents Department

Halogen Collector Test Program

Description: Report documenting the Halogen Collector Test program, which was undertaken to provide "methods of removing trace quantities of radioactive iodine from an air stream" (p. 1). The report includes designs of the program and the test facility, test results, analysis of these results, and encountered problems. Appendices begin on page 38.
Date: March 1, 1960
Creator: Arthur D. Little, Inc.
Partner: UNT Libraries Government Documents Department

The Radiochemistry of Selenium

Description: A review of the nuclear and chemical features of selenium, a discussion of problems of sample dissolution and counting techniques, and a collection of radiochemical procedures for the element as found in the literature are presented. (94 references) (M.C.G.)
Date: April 1961
Creator: Leddicotte, G. W.
Partner: UNT Libraries Government Documents Department

The Crisis in Radiochemistry and Nuclear Chemistry Education

Description: A brief summary of the current status of radiochemistry and nuclear chemistry in the U. S. and abroad will be given. Current and future needs for scientists in these fields, especially in the U. S., will be discussed. Challenges that must be met in order to reverse the ''catastrophic'' downward trend in the numbers of students, faculty, and university programs in radiochemistry and nuclear chemistry will be considered, and some potential ways to reinvigorate and expand relevant university research and educational programs will be suggested.
Date: October 13, 2005
Creator: Hoffman, D C
Partner: UNT Libraries Government Documents Department

A systematic investigation of PET Radionuclide Specific Activity on Miniaturization of Radiochemistry

Description: The PET radionuclides, 18F and 11C consist of very high radiation to mass amounts and should be easily adapted to new technologies such as “chip chemistry” with nanofluidics. However, environmental contamination with nonradioactive fluorine, carbon and other trace contaminants add sufficient mass, micrograms to milligrams, to prevent adapting PET radiochemistry to the nanochip technologies. In addition, the large volumes of material required for beam irradiation make it necessary to also remove the 18F and 11C from their chemical matrices. These steps add contaminants. The work described in this report was a systematic investigation of sources of these contaminants and methods to reduce these contaminants and the reaction volumes for radiochemical synthesis. Several methods were found to lower the contaminants and matrices to within a factor of 2 to 100 of those needed to fully implement chip technology but further improvements are needed.
Date: March 8, 2012
Creator: Link, Jeanne M.
Partner: UNT Libraries Government Documents Department

Radiochemistry Student, Postdoc and Invited Speaker Support for New Directions in Isotope Production, Nuclear Forensics and Radiochemistry Supported by the DOE

Description: The Division of Nuclear Chemistry and Technology (NUCL) of the American Chemistry Society (ACS) is sponsoring a symposium entitled "New Directions in Isotope Production, Nuclear Forensics and Radiochemistry Supported by the DOE" at the 240th ACS National Meeting in Boston, MA 22-26 August 2010. Radiochemistry and nuclear science is a critical area of research and funding for which the DOE has provided support over the years. Radiochemistry is undergoing a renaissance in interdisciplinary areas including medicine, materials, nanotechnology, nuclear forensics and energy. For example, interest in nuclear energy is growing in response to global warming. The field of nuclear forensics has grown significantly since 9/11 in response to potential terror threats and homeland security. Radioactive molecular imaging agents and targeted radiotherapy are revolutionizing molecular medicine. The need for radiochemists is growing, critical, and global. The NUCL Division of the ACS has been involved in various areas of radiochemistry and nuclear chemistry for many years, and is the host of the DOE supported Nuclear Chemistry Summer Schools. This Symposium is dedicated to three of the critical areas of nuclear science, namely isotope production, nuclear forensics and radiochemistry. An important facet of this meeting is to provide support for young radiochemistry students/postdoctoral fellows to attend this Symposium as participants and contributors. The funding requested from DOE in this application will be used to provide bursaries for U.S. students/postdoctoral fellows to enable them to participate in this symposium at the 240th ACS National Meeting, and for invited scientists to speak on the important issues in these areas.
Date: April 11, 2011
Creator: Jurisson, Silvia, S.
Partner: UNT Libraries Government Documents Department

A TOTAL BURN SPECTROGRAPHIC DETERMINATION OF SILICON IN PLUTONIUM

Description: A total burn-spectrographic method has been applied to the determination of trace concentrations of silicon in plutonium. The sample is oxidized to plutonium dioxide, mixed with a germanium dioxide-graphite mixture containing tin internal standard, packed into cupped graphite electrodes, and burned to completion in a high amperage direct current arc. Plutonium spectral interference is minimized by optical means and by use of a less intense silicon line. The sensitivity is thereby decreased but is still sufficient to determine 25 ppm of silicon in plutonium. The precision of the method is estimated to be �8% (relative standard deviation) at the 270 ppm level and �14% at 40 ppm.
Date: July 1, 1965
Creator: Ko, Roy
Partner: UNT Libraries Government Documents Department

2012 RADIATION CHEMISTRY GORDON RESEARCH CONFERENCE AND GORDON RESEARCH SEMINAR, JULY 28, - AUGUST 3, 2012

Description: The overarching objective of this conference is to catalyze the interchange of new ideas and recent discoveries within the basic radiation sciences of physics, chemistry, and biology, and to facilitate translating this knowledge to applications in medicine and industry. The 9 topics for the GRC are: "œFrom Energy Absorption to Disease", "œBiodosimetry after a Radiological Incident," "œTrack Structure and Low Energy Electrons," "Free Radical Processes in DNA and Proteins," "Irradiated Polymers for Industrial/ Medical Applications," "Space Radiation Chemistry/Biology," "Nuclear Power and Waste Management," "Nanoparticles and Surface Interfaces", and the "Young Investigator" session.
Date: August 3, 2012
Creator: LaVerne, y
Partner: UNT Libraries Government Documents Department

RADIATION CHEMISTRY OF HEAVY PARTICLE TRACKS. II.. THE FRICKE DOSIMETER SYSTEM

Description: A heavy-particle track model suggested by considerations presented in a companion paper is used in a calculation of the differential (G') and integral (G) yields of the Fricke dosimeter system for six selected particles over a wide range of energies. The particles are H, He, C, Ne, Ar, and Fm; the energy range for the first two is 10{sup -3} MeV/n to 10{sup 3} MeV/n, and for the last four is 10{sup -1} MeV/n to 10{sup 3} MeV/n. The calculated G' and G values are compared with experimental values as far as possible, and the heavy-particle track model situation is discussed.
Date: March 1, 1980
Creator: Chatterjee, Aloke & Magee, John L.
Partner: UNT Libraries Government Documents Department

THE RADIOCHEMISTRY OF MOLYBDENUM

Description: A review of the nuclear and chemical features of particular interest to the radiochemist, a discussion of problems of dissolution of a sample and counting techniques, and a collection of radiochemical procedures for the elements as found in the literature are given. (W.L.H.)
Date: January 1, 1960
Creator: Scadden, E.M. & Ballou, N.E.
Partner: UNT Libraries Government Documents Department