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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
11

A method for predicting peak scanning detection efficiency of a cylindrical sodium iodide scintillation detector

Duffy, William L. 12 September 2001 (has links)
Scanning surveys of building surfaces and land areas are performed with radiation detection equipment to identify areas of elevated radioactivity. To quantify the extent and magnitude of the contamination, follow-up radiation surveys and soil sampling are usually required. The ability to accurately quantify discrete locations or "hot particles" of contamination requires a full understanding of the scanning detection efficiency of the instrument being used. A cylindrical sodium iodide detector's scanning detection efficiency was examined theoretically using the Monte Carlo N-Particle Code, version 4b, and examined experimentally using the Marianno Research Sled located in the Department of Nuclear Engineering, Oregon State University. A method is described for predicting instrument scanning detection efficiency for a 1 s observation interval over a range of scanning speeds using a series of static detection efficiency measurements. Testing of the prediction method and accuracy of predicted values was performed by comparison to experimentally determined values of scanning detection efficiency. Additionally, the validity of the predicted scanning detection efficiency values was tested by quantifying a radioactive source at a number of scanning speeds to quantitatively determine its activity. Activity values determined by scanning the source were compared against an activity value determined a by high purity germanium detection system. Results indicate that the method is both easy to perform and provides statistically accurate scanning detection efficiency values that can be utilized for the quantification of discrete locations or "hot particles" of radioactive contamination. / Graduation date: 2002
12

The decay of 103Pd and 67Ga investigations with two gamma scintillation spectrometers in coincidence.

Rietjens, Leonardus Henricus Theodorus. January 1956 (has links)
Proefschrift--Utrecht. / Summary in Dutch. Bibliography: p. 77-79.
13

Development of a statistics based positioning algorithm for scintillation cameras and its applications /

Joung, Jinhun. January 2001 (has links)
Thesis (Ph. D.)--University of Washington, 2001. / Vita. Includes bibliographical references (leaves 106-110).
14

A study of irregularities in the ionosphere by observation of the scintillations produced in received signals from satellites /

Chan, Tin. January 1966 (has links)
Thesis (M. Sc.)--University of Hong Kong, 1967. / Mimeographed.
15

THE RADIOASSAY OF CALCIUM-45 AND STRONTIUM-89 FROM BIOLOGICAL SYSTEMS BY LIQUID SCINTILLATION COUNTING

Hardcastle, James Edward, 1932- January 1967 (has links)
No description available.
16

Use of a gas Cerenkov - liquid scintillation counter to study extensive air showers

Kirby, Paul Lawrence, 1924- January 1961 (has links)
No description available.
17

Interplanetary scintillation and solar activity

Wiseman, Michael January 1972 (has links)
141 [34] leaves : ill. ; 27 cm. / Title page, contents and abstract only. The complete thesis in print form is available from the University Library. / Thesis (Ph.D.) from the Dept. of Physics, University of Adelaide, 1972
18

Heavy metal loaded organic scintillators

Alkhafaji, Salih. January 1978 (has links)
Thesis (M.S.)--University of Michigan, 1978.
19

A discussion of scintillation counting and evaluation of a single channel analyzer using a modified 204-B linear amplifier [thesis] presented in partial fulfillment for ... a Master of Science degree in Nuclear Engineering ... /

Miller, Edmund Kenneth. January 1958 (has links)
Thesis (M.S.)--University of Michigan, 1958.
20

The decay of 103Pd and 67Ga; investigations with two gamma scintillation spectrometers in coincidence.

Rietjens, Leonardus Henricus Theodorus. January 1956 (has links)
Proefschrift--Utrecht. / Summary in Dutch. Bibliography: p. 77-79.

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