Zobrazeno 1 - 10
of 85
pro vyhledávání: '"David F. Measday"'
Autor:
David F. Measday, Ernest C. Y. Ho
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 213:464-468
Monitoring of air-borne radioactivity has been tested on behalf of the Comprehensive Test Ban Treaty Organization. A prototype system was installed at the University of British Columbia, Vancouver, BC in April 1996 and has been operating successfully
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 388:212-219
We have studied the peak shapes at 596 and 691 keV resulting from fast neutron interactions inside germanium detectors. We have used neutrons from a 252 Cf source, as well as from the 28 Si(μ − , nv), and 209 Bi(π − , xn) reactions to compare t
Autor:
T. P. Gorringe, E. Gete, B.A. Moftah, J. Bauer, Brad L. Johnson, D. S. Armstrong, S. Stanislaus, B. Siebels, David F. Measday
Publikováno v:
Physics Letters B. 395:157-162
Negative muon capture in 28Si was used to determine the angular correlation between the neutrino and the 1229 keV γ-ray from the de-excitation of the 2201 keV 1+ level in 28Al. To suppress backgrounds in the HPGe detectors, a coincidence was require
Autor:
Michael A. Kovash, B. A. Moftah, J. Bauer, David F. Measday, T. P. Gorringe, Brad L. Johnson, D. S. Armstrong, R. Porter, D. H. Wright, Hasinoff
Publikováno v:
Physical Review C. 54:2714-2731
We report measurements of capture rates and hyperfine dependences in muon capture on {sup 23}Na to various states in Ne and F isotopes. We also report comparisons of the capture rates and hyperfine dependences for six {sup 23}Na {r_arrow} {sup 23}Ne
Autor:
Brad L. Johnson, T. P. Gorringe, J. Bauer, B.A. Moftah, M. D. Hasinoff, D. H. Wright, R. Porter, D. S. Armstrong, David F. Measday, Michael A. Kovash
Publikováno v:
Physical Review Letters. 72:3472-3475
We report measurements of the rates and hyperfine (HF) dependences of ${\mathrm{\ensuremath{\mu}}}^{\mathrm{\ensuremath{-}}}$ capture on $^{23}\mathrm{Na}$, and the HF transition rate in Na metal. The measured capture rates are in general agreement w
Autor:
J. P. Miller, M. A. Kovash, Jacot-Guillarmod R, P. Weber, David F. Measday, D.C. Healey, Stasko Jc, Murray Moinester, B. Bassalleck, Mack Dj, Pickar Ma, E.C. Booth, Chertok Mb, D.F. Ottewell
Publikováno v:
Physical Review Letters. 72:973-976
The polarized target asymmetry [ital A][sub [ital N]] for [pi][sup [minus]][ital [rvec p]][r arrow][gamma][ital n] has been measured by coincident detection of the [gamma] and the neutron at several angles across the [Delta] resonace energy region. A
Autor:
Brad L. Johnson, J. Bauer, R. Porter, David F. Measday, D.H. Wright, B.A. Moftah, T. P. Gorringe, M.A. Kovash, D. S. Armstrong, M. D. Hasinoff, P. Gumplinger
Publikováno v:
Physics Letters B, Vol 309, Iss 3, Pp 241-245 (1993)
From the time dependence of the ( μ − , nν ) reaction we have determined the hyperfine transition rates for the muonic atoms of 19 F, 23 Na, and nat Cl, obtaining Λ h =4.9±1.2 μ s −1 , 8.4±1.9 μ s −1 , and 6.5±0.9 μ s −1 , respective
Autor:
A. L. Hallin, Peter Graham Jones, J. P. Miller, B. L. Roberts, K. D. Larson, A. J. Noble, Chris Waltham, E. K. McIntyre, D. K. Robinson, D. Horváth, Hugh Burkhardt, M. Sakitt, B. Bassalleck, T. M. Warner, David F. Measday, J. Lowe, S. Stanislaus, D. A. Whitehouse, William Fickinger, D. M. Wolfe, M. Salomon, M. D. Hasinoff, J. R. Hall
Publikováno v:
Physical Review D. 47:799-810
The branching ratio for the $\ensuremath{\Lambda}$ weak radiative decay $\ensuremath{\Lambda}\ensuremath{\rightarrow}n\ensuremath{\gamma}$ has been measured. Three statistically independent results from the same experiment (Brookhaven E811) are repor
Autor:
David F. Measday
Publikováno v:
Czechoslovak Journal of Physics. 42:1231-1237
A significant improvement in the resolution of hypernuclear levels could be attained by studying the (K−,π0) reaction at rest. The new LAMPF neutral meson spectrometer can attain a π0 energy resolution of 200 keV. It is shown that, even today, an
Autor:
D. K. Robinson, D. A. Whitehouse, William Fickinger, K. D. Larson, J. Lowe, M. Sakitt, D. M. Wolfe, Chris Waltham, T. M. Warner, David F. Measday, Dezso Horvath, J. P. Miller, E. K. McIntyre, B. L. Roberts, M. Salomon, J. R. Hall, B. Bassalleck, A. L. Hallin, A. J. Noble, M. D. Hasinoff
Publikováno v:
Physical Review Letters. 69:414-417
The branching ratio for the \ensuremath{\Lambda} weak radiative decay has been measured to be B(\ensuremath{\Lambda}\ensuremath{\rightarrow}n+\ensuremath{\gamma})/(\ensuremath{\Lambda}\ensuremath{\rightarrow}anything) =[1.78\ifmmode\pm\else\textpm\fi