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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.
21

A study of the interaction loss of protons and deuterons in NaI

Ahmad, Munawar Sultana January 1988 (has links)
Interaction losses in sodium iodide crystals have been directly measured for protons in the range of energies from 139 to 444 MeV and for deuterons of 277 MeV. Calculations of the expected loss were made for protons over the range 151-500 MeV using the best currently available reaction cross section data. Our experimental values are typically about 21% lower than the calculated values. The interaction loss for 277 MeV deuteron in Nal is about 8% lower than the calculated value obtained using the deuteron cross section value of Measday and Schneider. Using their calculated value of 100 MeV deuteron interaction loss as a reference point, we calculated the loss for 277 MeV deuterons and from a fit to our data we obtained the cross section for deuterons at an average energy of 188.4 MeV to be 2590 ± 180 mb, which is about 20% lower than the cross section obtained from the empirical relation that σ(d-A) is 2σ(p-A) at half the energy. / Science, Faculty of / Physics and Astronomy, Department of / Graduate
22

L- and M-Shell X-Ray Production Cross Sections of Neodymium Gadolinium, Holmium, Ytterbium, Gold and Lead by 25-MeV Carbon and 32-MeV Oxygen Ions

Andrews, Mike C., 1949- 08 1900 (has links)
L- and M-shell x-ray production cross sections have been measured for thin solid targets of neodymium, gadolinium, holmium, ytterbium, gold, and lead by 25 MeV 12/6C^q+ (q=4,5,6) and by 32 MeV 16/8O^q+ (q=5,7,8). The cross sections were determined from measurements made with thin targets (< 2.5 μg/cm2). For projectiles with one or two K-shell vacancies, the target x-ray production cross sections were found to be enhanced over those for projectiles without a K-shell vacancy. The sum of direct ionization to the continuum (DI) plus electron capture (EC) to the L, M, N... shells and EC to the K-shell of the projectile have been extracted from the data. The results are compared to the predictions of first Born theories, i.e., plane wave Born approximation for DI and Oppenheimer-Brinkman-Kramers formula of Nikolaev for EC and to the ECPSSR approach that accounts for Energy loss and Coulomb deflection of the projectile as well as for Relativistic and Perturbed Stationary States of inner shell electrons.
23

Electron capture into excited states by helium ions

Wolterbeek Muller, Lambert, January 1971 (has links)
Thesis--Rijksuniversiteit te Leiden. / Summary also in Dutch. eContent provider-neutral record in process. Description based on print version record. Includes bibliographies.
24

Interference effects due to projective-target nucleus scattering in single ionization of molecular hydrogen by 75 keV proton impact

Alexander, Jason S. January 2009 (has links) (PDF)
Thesis (Ph. D.)--Missouri University of Science and Technology, 2009. / Vita. The entire thesis text is included in file. Title from title screen of thesis/dissertation PDF file (viewed April 27, 2009) Includes bibliographical references (p. 70-74).
25

Electron capture into excited states by helium ions

Wolterbeek Muller, Lambert, January 1971 (has links)
Thesis--Rijksuniversiteit te Leiden. / Summary also in Dutch. Includes bibliographies. Also issued in print.
26

Total electron scattering cross sections of Tetrafluoromethane, Trifluoromethane, Hexafluoroethane, and Octafluorocyclobutane in the energy range 0.10 to 4.50 keV

Palihawadana, Prasanga D. Ariyasinghe, Wickramasinghe M. January 2008 (has links)
Thesis (M.S.)--Baylor University, 2008. / Includes bibliographical references (p. 70-75).
27

Antiproton interactions in hydrogen and carbon below 200 Mev

Agnew, Lewis E., January 1959 (has links)
Thesis (Ph.D.)--University of California, Berkeley, 1959. / "Physics and Mathematics" -t.p. Includes bibliographical references (p. 88-91).
28

Scattering of K⁺ mesons off protons

Kycia, Thaddeus Francis. January 1959 (has links)
Thesis--University of California, Berkeley, 1959. / "Physics and Mathematics" -t.p. Includes bibliographical references (p. 79-80).
29

Total-reaction cross-section measurements for charged particles

Wilkins, Bruce D. January 1963 (has links)
Thesis (Ph.D.)--University of California, Berkeley, 1963. / "UC-34 Physics" -t.p. "TID-4500 (19th Ed.)" -t.p. Includes bibliographical references (p. 140-144).
30

Complete determination of polarization for a high-energy deuteron beam

Button, Janice. January 1959 (has links)
Thesis--University of California, Berkeley, 1959. / "Physics and Mathematics" -t.p. Includes bibliographical references (p. 125-126).

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