Zobrazeno 1 - 10
of 72
pro vyhledávání: '"R. W. Macleod"'
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 462:519-529
Optimal sensitivity in large HPGe γ-ray spectrometers such as Gammasphere and Euroball is achieved with 4-fold γ-ray coincidences or higher. Analysis of coincidence data at these folds is difficult as storage constraints make histogram-based techni
Autor:
Duncan Appelbe, C. Baktash, I {Frosch}, Anna Wilson, D. Curien, I. Y. Lee, Ch. Theisen, A.T. Reed, E. S. Paul, D. Prévost, D. M. Cullen, A. O. Macchiavelli, J.F. Sharpey-Schafer, R. W. MacLeod, M. Bergstrom
Publikováno v:
Nuclear Physics A. 673:3-30
This paper describes the results of two complementary experiments which studied the properties of the well-deformed nucleus 171 Hf. The first experiment, with a thin self-supporting target, extended the rotational bands built upon the [633]7 / 2, [51
Autor:
D. R. LaFosse, T. Lauritsen, V. Tomov, F. G. Kondev, R. M. Clark, R. V. F. Janssens, I. Wiedenhoever, D. Seweryniak, C. J. Lister, Joakim Cederkäll, M. Devlin, M. Hausmann, F. Lerma, D. R. Napoli, Karin Lagergren, Wlodzimierz Klamra, Torbjörn Bäck, D. G. Sarantites, I. Y. Lee, Bo Cederwall, A. O. Macchiavelli, R. W. MacLeod, Ramon Wyss, E. Ideguchi, A. Johnson, P. Fallon, A. Jungclaus, M. P. Carpenter, J. Elson
Publikováno v:
Physics Letters B. 492:245-253
A high-spin rotational band with 11 gamma -ray transitions has barn observed in Tc-91. The dynamical moment of inertia as well as the transition quadrupole moment of 8.1(-1.4)(+1.9) eb measured for this band show the characteristics of a superdeforme
Autor:
R. M. Clark, S. L. Tabor, D. R. LaFosse, R. W. MacLeod, Ramon Wyss, I. Y. Lee, A. O. Macchiavelli, C. Baktash, D. G. Sarantites, F. Lerma, M. Devlin, D. Soltysik
Publikováno v:
Physical Review Letters. 83:5447-5450
Comparative measurements of the lifetimes of yrast superdeformed (SD) states in ${}^{80--83}\mathrm{Sr}$, ${}^{83}\mathrm{Y}$, and ${}^{84}\mathrm{Zr}$ have been performed using the Doppler-shift attenuation method. Thus, the transition quadrupole mo
Autor:
R. W. MacLeod, Ramon Wyss, D. G. Sarantites, F. Lerma, J. Elson, I. Y. Lee, R. M. Clark, A. O. Macchiavelli, P. Fallon, Joakim Cederkäll, D. R. LaFosse, Bo Cederwall, Torbjörn Bäck, A. Johnson, M. Devlin
Publikováno v:
Scopus-Elsevier
High-spin states in Mo-88 were studied using the GAMMASPHERE germanium detector array in conjunction with the MICROBALL CsI(TI) charged-particle detector system. Three gamma-ray cascades with dynamic moments of inertia showing similar characteristics
Autor:
I. Y. Lee, Bo Cederwall, R. M. Clark, Joakim Cederkäll, R. W. MacLeod, F. Lerma, M. Devlin, Ramon Wyss, J. M. Elson, D. R. LaFosse, D. G. Sarantites, A. Johnson, A. O. Macchiavelli, Torbjörn Bäck, P. Fallon
Publikováno v:
Scopus-Elsevier
A superdeformed band consisting of a cascade of ten gamma-ray transitions has been identified and assigned to the nucleus Tc-89, close to the proton dripline. The quadrupole moment of the band (Q(t) = 6.7(-2.3)(+3.0) eb, as measured by the Residual D
Autor:
Yuen-Dat Chan, M. C. P. Isaac, A. Shadkam, M. M. Hindi, R. W. MacLeod, Ruth-Mary Larimer, H.G Börner, Eric B. Norman, M. R. Dragowsky, Marie K. Harder, Kenneth S. Krane, S. J. Robinson, D. E. Digregorio, C. Doll, P. Miocinovic, K. Zaerpoor, A. O. Macchiavelli
Publikováno v:
Physics Letters B. 465:61-66
Lifetime measurements of the 5−1, 4−1, and 3−2 levels in 144Nd, coupled with measurements of the M1/E2 mixing of the 4−1→3−1 and 3−2→3−1 transitions, show that the transition strengths from these levels are in good agreement with th
Autor:
M. M. Hindi, Yuen-Dat Chan, M. C. P. Isaac, P. Miocinovic, K. Zaerpoor, A. O. Macchiavelli, R. W. MacLeod, Eric B. Norman, M. R. Dragowsky, Ruth-Mary Larimer, D. E. Digregorio, Kenneth S. Krane, S. J. Robinson
Publikováno v:
Nuclear Physics A. 654:916c-919c
Sources of 54 Mn, 55 Ni, and 144 Pm were placed at the center of the Gammasphere array and searches were made for the astrophysically interesting β + decay modes of these isotopes. The results of these searches are presented and the implications for
Autor:
A. V. Afanasjev, A. O. Macchiavelli, D. G. Sarantites, R. W. MacLeod, Ingemar Ragnarsson, F. Lerma, Peter Ring, I. Y. Lee, D. R. LaFosse, P. G. Thirolf, R. M. Clark, M. Devlin, Dirk Rudolph
Publikováno v:
Physical Review Letters. 82:5217-5220
A superdeformed rotational structure is reported in the stable nucleus Zn-68. It has a transition quadrupole moment (Q(t)) of 2.5(-0.4)(+0.7) e b (beta(2) approximate to 0.4), as measured by the residual Doppler shift method. Theoretical calculations
Autor:
R. W. MacLeod, M. A. Deleplanque, G. J. Schmid, R. M. Clark, P. Fallon, A. O. Macchiavelli, Kai Vetter, F. S. Stephens, I. Y. Lee, R. M. Diamond
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 430:69-83
We discuss a γ-ray tracking algorithm that has been developed for the proposed gamma-ray energy tracking array (GRETA). This algorithm has been designed so as to maximize the resolving power for detecting high-multiplicity γ-ray events. The concept