rdf-syntax-grammar
mods:
  schema location: http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
  title info:
    title: Trace analysis with protons [i.e. proton] and heavy ion activation
  title info:
    title: Trace analysis with proton and heavy ion activation
  name:
    name part: Zikovsky, Lubomir.
    role:
      role term: creator
  name:
    name part: Schweikert, E. A.
    role:
      role term: degree supervisor.
  name:
    name part: Texas A & M University
    role:
      role term: degree granting institution.
  type of resource: text
  genre: bibliography
  genre: Academic theses
  origin info:
    place:
      place term: txu
    date issued: 1977
    issuance: monographic
  language:
    language term: eng
  physical description:
    form: print
    extent: xi, 113 leaves : illustrations ; 28 cm
  abstract: The capabilities of 12 MeV proton activation were compared with those of reactor neutron and 35 MeV photon activation. A series of biological specimens (plant and animal tissues) were chosen for this study limited to nondestructive assays. Based on y-ray spectrometry, As, Ca, Cu, Fe, Mo, Pt, Sr, Ti, Zn and Zr at levels ranging from 2 to 20,900 ppm were detected following proton activation of 1 hour. Al, Br, Ca, Cl, Cu. Mg, Mn, Rb and V. ranging from 0.4 to 20,900 ppm, were measured by neutron activation (1 min. irradiation). As, Ba, Br, Cr, Co, Fe, Hg, La, Na, Rb, Sb and Zn, .ranging from 0.2 to 2400 ppm, were determined following a 14 hour neutron irradiation. Photon activation data was obtained by computer simulation of y-ray spectra, based on published radioisotope production yields. Assuming a 4 hour irradiation, As, Ba, Br, Ca, Cl, Fe, I, Mg, Mn, Na, Pb, Rb, Sb, Sr could be detected at concentration levels ranging from 3 to 20,900 ppm. Although covering different elements, the three techniques are comparable in their scope, i.e. detection limits that can be achieved and number of elements that can be detected simultaneously. In terms of determining known essential elements, detection limits below the average concentrations of such elements in the human body were obtained for Co, Fe, Zn with neutron activation, for Cu, Fe, Zn with proton activation and for Fe, I, Zn with photon activation..
  note: by Lubomir Zikovsky.
  note: "Major subject: Chemistry."
  note: Vita.
  note: Texas A & M University
  note: Includes bibliographical references (leaves 97-104).
  subject:
    topic: Nuclear activation analysis
  subject:
    topic: Trace elements
    topic: Analysis
  subject:
    topic: Chemistry
  subject:
    topic: Nuclear activation analysis
  subject:
    topic: Trace elements
    topic: Analysis
  identifier: http://proxy.library.tamu.edu/login
  identifier: https://hdl.handle.net/1969.1/DISSERTATIONS-357094
  related item:
    location:
      url: http://proxy.library.tamu.edu/login
  related item:
    location:
      url: https://hdl.handle.net/1969.1/DISSERTATIONS-357094
  record info:
    record content source: TXA
    record creation date: 770915
    record change date: 20220103135452.0
    record identifier: in00000333121
    language of cataloging:
      language term: eng