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: Radioactivation analysis with heavy ion beams
  name:
    name part: Lass, Bennett David.
    role:
      role term: creator
  name:
    name part: Presley
    role:
      role term: degree committee member.
  name:
    name part: Rowe, M. W.
    role:
      role term: degree committee member.
  name:
    name part: Schweikert, Emile A.
    role:
      role term: degree supervisor.
  name:
    name part: Warner
    role:
      role term: degree committee member.
  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: xx
    date issued: 1981
    issuance: monographic
  language:
    language term: eng
  physical description:
    form: print
    extent: xii, 94 leaves : illustrations ; 29 cm
  abstract: Heavy ion activation analysis (HIAA) was evaluated for the determination of low Z elements Z (LESSTHEQ) 8. These target species were bombarded with ion beams of 3 (LESSTHEQ) Z (LESSTHEQ) 8 and energies (TURN) 1 MeV/amu. The experimental effort focused on nuclear reactions yielding (beta)('+) emitting isotopes with half-lives of (GREATERTHEQ) 10 seconds. With the beams and energies considered, only elements of Z (LESSTHEQ) 8 activate. The sample depth probed is shallow (a few mg/cm('2)). Hence, HIAA is well suited for the determination of lowest Z species in thin layers. Four heavy ion beams, ('6)Li, ('9)Be, ('12)C, and ('14)N, were found to induce reactions which could be employed for trace analysis. Percent interferences (the activity created from an equal amount of the interfering target element) were calculated from experimental data. Carbon can be analyzed via the ('6)Li reaction ('12)C(('6)Li,(alpha)n)('13)N. Beryllium produces a 500% interference from the reaction ('9)Be(('6)Li,2n)('13)N. Lithium was determined via the reaction ('7)Li(('12)C,n)('18)F with only a 5% interference from boron. HIAA with ('9)Be allowed for trace determination of boron and nitrogen. The reactions involved are ('10)B(('9)Be,n)('18)F, ('11)B(('9)Be,2n)('18)F, and ('14)N(('4)Be,(alpha)n)('18)F. For boron determination, there is a 50% interference from nitrogen and a 0.5% interference from carbon. For nitrogen analysis, boron and carbon present a 200% and 1% interference, respectively. Nitrogen activates lithium and beryllium: ('6)Li(('14)N,d)('18)F, ('7)Li(('14)N,t)('18)F, and ('9)Be(('14)N,(alpha)n)('18)F. For determination of either element a 100% interference is caused by the other element if present. ...
  note: "Major subject: Chemistry."
  note: Typescript (photocopy).
  note: Vita.
  note: Ph. D. in Philosophy Texas A & M University 1981
  note: Includes bibliographical references (leaves 86-88).
  subject:
    topic: Heavy ion collisions
  subject:
    topic: Ion bombardment
  subject:
    topic: Nuclear activation analysis
  subject:
    topic: Chemistry
  identifier: http://proxy.library.tamu.edu/login
  identifier: https://hdl.handle.net/1969.1/DISSERTATIONS-83177
  related item:
    location:
      url: http://proxy.library.tamu.edu/login
  related item:
    location:
      url: https://hdl.handle.net/1969.1/DISSERTATIONS-83177
  record info:
    record content source: TXA
    record creation date: 820226
    record change date: 20220104090816.0
    record identifier: in00000079775
    language of cataloging:
      language term: eng