Zobrazeno 1 - 10
of 52
pro vyhledávání: '"Scott B. Whitfield"'
Autor:
Chris J. Murray, Scott B. Whitfield
Publikováno v:
American Journal of Physics. 90:487-493
We have considered the vibration of various types of pinned guitar strings and have investigated the deviation of the partials from integer multiples of the string's fundamental vibration frequency. We measured the inharmonicity parameter B and compa
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4e018246c531761c7e8d2c104dedca62
https://doi.org/10.1119/5.0064373
https://doi.org/10.1119/5.0064373
Autor:
Scott B. Whitfield, Kurt B. Flesch
Publikováno v:
American Journal of Physics. 82:102-109
We use high-speed photography (1200 frames/s) to investigate the vibrational motion of a plucked guitar string over several cycles. We investigate the vibrational pattern for plucking the string at two different locations along the string's length, a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bdf8abe89f8b1c526a62f9ea4349ee1e
https://doi.org/10.1119/1.4832195
https://doi.org/10.1119/1.4832195
Publikováno v:
Journal of Physics B: Atomic, Molecular and Optical Physics. 40:3647-3653
We investigate the case of the Xe 5s angular distribution in the region of the second Cooper minimum covering a photon energy region from 80 to 280 eV. We observe a strong drop in the Xe 5s β value from 2.0, reaching a minimum of 1.669(8) at a photo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::706c857a56d6638215164d461f50851f
https://doi.org/10.1088/0953-4075/40/18/006
https://doi.org/10.1088/0953-4075/40/18/006
Autor:
Scott B. Whitfield, Steven T. Manson, T. Banerjee, Hari R. Varma, Ralf Wehlitz, Pranawa C. Deshmukh
Publikováno v:
Journal of Physics B: Atomic, Molecular and Optical Physics. 39:L335-L343
We investigate the case of resonance-induced deviations of the angular distribution anisotropy parameter, ?, from its nominal value of 2.0 for the Kr 4s-subshell at the 3d ? mp(m ? 5) excitations and the Xe 5s-subshell in the region of the 4d ? mp(m
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::838fdbb27194af78b66b07552bab2cfa
https://doi.org/10.1088/0953-4075/39/21/l01
https://doi.org/10.1088/0953-4075/39/21/l01
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 241:114-117
The photon energy region near the double-ionization threshold is characterized by the simultaneous – not sequential – emission of the two electrons. By comparing the photon-energy dependence of our measured double-to-single photoionization ratios
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5bc7b8ec9692f9c523845114f104874c
https://doi.org/10.1016/j.nimb.2005.07.015
https://doi.org/10.1016/j.nimb.2005.07.015
Autor:
Scott B. Whitfield, Paul Olalde-Velasco, T. Myers, M. Bjelland, Ralf Wehlitz, K Caspary, José Jiménez-Mier, Manfred O. Krause
Publikováno v:
Journal of Physics B: Atomic, Molecular and Optical Physics. 38:3273-3287
A determination of the angular distributions, β, and relative partial photoionization cross sections, σ, of the valence satellite lines of atomic scandium in the region of the 3p → nd, ms excitations has been carried out using electron spectromet
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::60dc59752f3a88594360feb49872c519
https://doi.org/10.1088/0953-4075/38/17/015
https://doi.org/10.1088/0953-4075/38/17/015
Publikováno v:
Journal of Electron Spectroscopy and Related Phenomena. :59-62
We have derived, from the measured double-to-single photoionization ratio of lithium, the double-photoionization cross-section for photon energies from the second double-ionization threshold (172.8 eV) up to 450 eV. Using a simple model to account fo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5c0c667056e6bb9e4b98ed3b419eae89
https://doi.org/10.1016/j.elspec.2005.01.285
https://doi.org/10.1016/j.elspec.2005.01.285
Publikováno v:
Journal of Physics B: Atomic, Molecular and Optical Physics. 37:3435-3455
A determination of the angular distributions and the relative partial photoionization cross sections of the 3d and 4s mainlines and the largest satellite line of atomic chromium in the region of the 3p → nd, ms excitations has been carried out usin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::97b84a4fe7e939fb9a95c855b643247e
https://doi.org/10.1088/0953-4075/37/17/005
https://doi.org/10.1088/0953-4075/37/17/005
Publikováno v:
Radiation Physics and Chemistry. 70:3-42
Employing electron spectrometry in conjunction with tuneable synchrotron radiation, we will present a detailed examination of the photoionization dynamics of selected metal vapor atoms. In particular, this paper will focus on the relative partial cro
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::30749e18b455139c713a143ed727acfa
https://doi.org/10.1016/j.radphyschem.2003.12.003
https://doi.org/10.1016/j.radphyschem.2003.12.003
Autor:
Oliver Hemmers, M. Blackburn, Dennis W. Lindle, T. Goddard, Peter Glans, Ivan A. Sellin, H. Wang, Scott B. Whitfield, Ralf Wehlitz
Publikováno v:
Journal of Electron Spectroscopy and Related Phenomena. 123:257-264
Nondipole angular-distribution parameters γ and δ for neon 2s and 2p photoelectrons have been measured and are compared to all available theoretical data. The agreement is very good throughout the 150–1200 eV photon-energy range studied. Furtherm
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bf325afbd29390e138d9b4c251881633
https://doi.org/10.1016/s0368-2048(02)00025-7
https://doi.org/10.1016/s0368-2048(02)00025-7