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After World War II, the US Atomic Energy Commission (AEC) began mass-producing radioisotopes, sending out nearly 64,000 shipments of radioactive materials to scientists and physicians by 1955. Even as the atomic bomb became the focus of Cold War anxiety, radioisotopes represented the government’s efforts to harness the power of the atom for peace—advancing medicine, domestic energy, and foreign relations. In Life Atomic, Angela N. H. Creager tells the story of how these radioisotopes, which were simultaneously scientific tools and political icons, transformed biomedicine and ecology. Government-produced radioisotopes provided physicians with new tools for diagnosis and therapy, specifically cancer therapy, and enabled biologists to trace molecular transformations. Yet the government’s attempt to present radioisotopes as marvelous dividends of the atomic age was undercut in the 1950s by the fallout debates, as scientists and citizens recognized the hazards of low-level radiation. Creager reveals that growing consciousness of the danger of radioactivity did not reduce the demand for radioisotopes at hospitals and laboratories, but it did change their popular representation from a therapeutic agent to an environmental poison. She then demonstrates how, by the late twentieth century, public fear of radioactivity overshadowed any appreciation of the positive consequences of the AEC’s provision of radioisotopes for research and medicine.
Provides an introduction to the use of radioactivity in the bioscience laboratory. The text covers general aspects of radioactivity, methods for the detection of radioactivity, radioisotope protocols used to study key cellular processes, and a summary of legislative requirements in the US and European Union. Guidance on safe handling and detailed recipes are provided.
Radioactive isotopes and enriched stable isotopes are used widely in medicine, agriculture, industry, and science, where their application allows us to perform many tasks more accurately, more simply, less expensively, and more quickly than would otherwise be possible. Indeed, in many casesâ€"for example, biological tracersâ€"there is no alternative. In a stellar example of "technology transfer" that began before the term was popular, the Department of Energy (DOE) and its predecessors has supported the development and application of isotopes and their transfer to the private sector. The DOE is now at an important crossroads: Isotope production has suffered as support for DOE's laboratories has declined. In response to a DOE request, this book is an intensive examination of isotope production and availability, including the education and training of those who will be needed to sustain the flow of radioactive and stable materials from their sources to the laboratories and medical care facilities in which they are used. Chapters include an examination of enriched stable isotopes; reactor and accelerator-produced radionuclides; partnerships among industries, national laboratories, and universities; and national isotope policy.
Isotope is Biology is a six-chapter supplementary text that covers the properties and application of isotopes as labels or analytical tools in biological research. The first chapters deal with the physico-chemical properties and radioactivity of isotopes. These chapters also explore their synthesis, preparation, radiation decomposition, and decay of radioactivity. The succeeding chapter considers other aspects of isotopes, including their effect of health, disposal, spills, and laboratory use. Another chapter examines the chemical and biochemical behavior, natural abundance, and the chemical stability of isotopic compounds. The final chapters describe several isotopic methods, namely, isotope dilution, paper chromatography, and autoradiography, with emphasis on their application in biological studies. This book will be of value to biologists, and graduate and undergraduate biology students.
Structure of the atom. Radioactive decay. Interaction of particulate radiation. Interactions of X radiation and y radiation. Production of radioactive nuclides. Synthesis of labeled compounds. Radioactive pharmaceuticals. Gas-filled detectors. External scintillation detectors. Semiconductor radiation detectors. Nuclear counting systems. Scientillation spectrometry. Sample preparations for external counting. Sample preparation for liquid scintilation counting. Liquid scintillation counting. autoradiography and radiochromatography. Activation analysis. Statistics of radioactivity measurements. Quantitative measurement of radioactivity. Dynamic function studies. Scanning and whote-body counting. Radiation exposure and dose. Internal absorbed dose. Guidelines for radiation protection. Radiation safety.