Browsing by Author "Church, David A."
Now showing items 21-34 of 34
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Magnetic dipole transition rates from measured lifetimes of levels of Be-like and B-like argon ions Moehs, D. P.; Church, David A. (American Physical Society, 1998)The lifetimes of the 1s(2)2s2p P-3(2) level of Ar XV and 1s(2)2s(2)2p P-2(3/2) of Ar XIV have been measured using metastable Ar14+ and Ar13+ ions produced by an electron cyclotron resonance ion source, which were subsequently ...
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Moehs, D. P.; Church, David A. (American Physical Society, 1999)An ion storage technique, based on the capture of metastable multiply charged ions from an external ion source into a Kingdon ion trap, has been used to measure the lifetimes of eight metastable levels of Mn ions with ...
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Yang, L. S.; Church, David A.; Tu, S. G.; Jin, J. (American Physical Society, 1994)Metastable multiply charged argon ions produced in, and extracted from, an electron cyclotron resonance ion source were captured from the beam into an electrostatic (Kingdon) ion trap by rapidly pulsing the potential of ...
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Serpa, F. G.; Morgan, C. A.; Meyer, E. S.; Gillaspy, J. D.; Trabert, E.; Church, David A.; Takacs, E. (American Physical Society, 1997)The transition probability for the 3d(4) D-5(2) <-- D-5(3) magnetic-dipole transition in Ti-like Xe (Xe32+) has been measured using an electron-beam ion trap. The unusually weak dependence of the transition energy on nuclear ...
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Moehs, D. P.; Bhatti, M. I.; Church, David A. (American Physical Society, 2001)Lifetimes of metastable levels in the ground term of Fe ions within the 3s(2)3p(k), k=1-5, isoelectronic sequences have been measured. These measurements were performed utilizing ions that were selected by mass to charge ...
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Church, David A.; Liu, C. H. (American Physical Society, 1972)
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Welch, George Robert (1979)Polarization measurements of light emitted near 3889 Å from fast He atoms, resulting from near grazing collisions with an aluminum target by incident 1--9 keV He ⁺ ions are described. The polarization results were analyzed ...
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Watson, R. L.; Palinkas, J.; Pedrazzini, G. J.; Bandong, B.; Can, C.; Church, David A.; Kenefick, R. A. (American Physical Society, 1987)
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Michaels, Robert William (1981)A method for measuring the vector polarization of collision-induced radiation is described and implemented. Studied in this research are the polarized de-excitations at 3889 Å characteristic of the 2³S₁ - 3³P₂,₁,₀ transitions ...
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Lee, Chin Shuang (Texas A&M University. Libraries, 1983)The circular and linear polarizations of photons emitted in the 2('3)S-3('3)P HeI transition have been measured. The 3('3)P state of fast helium atoms was populated by He('+)-He charge transfer collisions in the incident ...
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Church, David A.; Yang, L. S.; Tu, S. G. (American Physical Society, 1994)Quenching rates have been measured for selected metastable levels of Ar(q+) ions (q = 2, 3, 9, and 10) stored in a Kingdon ion trap, with mean energies of 262q eV and 181q eV. Effective quenching cross sections derived ...
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Henderson, Sammy Wayne (Texas A&M University. Libraries, 1986)520-00This manuscript describes the design and testing of a Nd:YAG injection seeding system which produces stable single axial mode Q-switched pulses at 1.06 ??m. The master oscillator is a cw single frequency Nd:YAG laser ...
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Church, David A. (American Physical Society, 1988)
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Tatum, Jack Edwar (Texas A&M University. Libraries, 1983)A unique NMR maser has been developed and operated which oscillates continuously and simultaneously at two different Larmor frequencies. The nuclear spin systems consist of hydrogen and fluorine nuclei provided by a 10 ...