Author: C. D. MoakPublisher:
ISBN:
Category : Coincidence circuits
Languages : en
Pages : 14
Book Description
Construction Features of a Circuit for Coincidence Measurements and Applications of the Circuit to Nuclear Problems
Author: C. D. MoakPublisher:
ISBN:
Category : Coincidence circuits
Languages : en
Pages : 14
Book Description
Construction Features of a Circuit for Coincidence Measurements and Applications of the Circuit to Nuclear Problems
Author: Publisher:
ISBN:
Category :
Languages : en
Pages : 11
Book Description
The inherent characteristics required of a coincidence circuit for nuclear research, as pointed out by Norling are: (1) high resolving power, (2) ability of the circuit to function properly at high single counting rates, (3) low sensitivity to external electrical disturbances, and (4) the circuit shall register a constant percentage, or preferably all of the coincidences. It has been found here that each of the listed characteristics is more or less dependent upon the others so that optimum operating conditions must be determined. An outline of the uses of a coincidence circuit and an outline of the present basic design principles are in order here. The coincidence circuit has been found valuable in the examination of the decay schemes of natural and artificial radioactivities, i.e. the evaluation of internal conversion coefficients or the determination of gamma/beta ratios. It has been used to measure gamma ray energies by Compton recoil absorption. Some work has been done also in the measurement of very short half-lives. The detection of certain radioactive isotopes in the presence of large radioactive contaminations is made possible through the use of the coincidence circuit.
Nuclear Disintegration Studies with a Beta-ray Spectrometer
Author: William W. PrattPublisher:
ISBN:
Category : Beta ray spectrometry
Languages : en
Pages : 94
Book Description
The use of a beta-ray spectrometer, in the analysis of nuclear decay schemes, makes possible the solution of many of the problems which arise in the course of such analyses. Of particular interest is the application of the instrument to the determination of the energy of beta and gamma-radiation from radioactive isotopes. In addition, it is possible to use the instrument to estimate the relative intensities of the various components of radiation; and to apply the coincidence method, in conjunction with the spectrometer, to the determination of the order in which these components are emitted from the nucleus. The present work was concerned with three particular problems arising in beta-ray spectrometry. A method of improving the intensity-resolution relationship of a thin lens magnetic beta-ray spectrometer, by means of ring focusing, was investigated. The existence of a ring-shaped constriction in the electron beam was demonstrated experimentally by a photographic film method. A theoretical analysis was carried out in an attempt to determine relations from which the relative intensities of beta-rays, gamma-rays and internal conversion electrons might be determined from data obtained with the spectrometer. Simplifying assumptions were made concerning the focusing action of the instrument, and effects due to scattering of electrons in the source of photoelectric radiator were neglected. Formulae were derived from which the observed spectrometer counting rates due to sources of known activity, emitting beta-rays, gamma-rays or internal conversion electrons may be predicted.
Bibliography [of] Radiation Detection
![Bibliography [of] Radiation Detection PDF](https://books.google.com/books/content/images/frontcover/X2Av7TTjcGMC?fife=w80-h100)
Author: U.S. Atomic Energy CommissionPublisher:
ISBN:
Category : Radioactivity
Languages : en
Pages : 162
Book Description
Documents Released by the United States Atomic Energy Commission to January 1, 1950
Author: U.S. Atomic Energy CommissionPublisher:
ISBN:
Category : Nuclear energy
Languages : en
Pages : 84
Book Description
Abstracts of Declassified Documents
Author: U.S. Atomic Energy CommissionPublisher:
ISBN:
Category : Nuclear energy
Languages : en
Pages : 820
Book Description
Consists of AECD 1-2023 (no. 1-1779 called MDDC).
Release List of Declassified and Unclassifed Documents
Author: U.S. Atomic Energy CommissionPublisher:
ISBN:
Category : Nuclear energy
Languages : en
Pages : 106
Book Description
Author: 
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