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Your search keyword '"Asztalos, S.J."' showing total 10 results
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10 results on '"Asztalos, S.J."'

3. Comparison of tests with14-MeV neutrons to a Monte Carlo model for interrogation of thick cargos for clandestine fissionable materials

Author

Prussin, S.G., Descalle, M.-A., Hall, J.M., Pruet, J.A., Slaughter, D.R., Accatino, M.R., Alford, O.J., Asztalos, S.J., Bernstein, A., Church, J.A., Gosnell, T., Loshak, A., Madden, N.W., Manatt, D.R., Mauger, G.J., Meyer, A.W., Moore, T.L., Norman, E.B., Pohl, B.A., Petersen, D.C., Rusnak, B., Sundsmo, T.B., Tenbrook, W.K., and Walling, R.S.

Published
2006
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4. Quadrupole moments of superdeformed bands in 193Tl

Author

Krücken, R., Wang, Z., Asztalos, S.J., Becker, J.A., Bernstein, L.A., Clark, R.M., Deleplanque, M.A., Diamond, R.M., Fallon, P., Fotiades, N., Hauschild, K., Lee, I.Y., Macchiavelli, A.O., Schmid, G.J., Stephens, F.S., and Vetter, K.

Published
1999
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5. Gamma-ray cluster identification in a spherical shell of highly segmented germanium detectors

Author

Schmid, G.J., Lee, I.Y., Deleplanque, M.A., Hendriks, P., Stephens, F.S., Vetter, K., Asztalos, S.J., Clark, R.M., Diamond, R.M., Fallon, P., Kruecken, R., Macchiavelli, A.O., and MacLeod, R.W.

Subjects
Gamma rays -- Analysis, Chemical detectors -- Analysis, Business, Electronics, Electronics and electrical industries
Abstract

Research and development is proceeding on a new [Gamma]-ray detector array for nuclear physics: the Gamma-Ray Energy Tracking Array (GRETA). This array will consist of a spherical shell of highly segmented Ge detectors. By obtaining the energy and position of each interaction point, high efficiency and peak-to-total ratios can be obtained as compared with existing arrays. Here we discuss the computer algorithms that are needed to process the raw data and maximize the performance of the array. The results of these algorithms on Monte Carlo simulated data are presented.

Published
1997

6. Shears bands in the Pb region

Author

Hübel, H., Baldsiefen, G., Clark, R.M., Asztalos, S.J., Becker, J.A., Bernstein, L., Deleplanque, M.A., Diamond, R.M., Fallon, P., Hibbert, I.M., Krücken, R., Lee, I.Y., Macchiavelli, A.O., MacLeod, R.W., Schmid, G., Stephens, F.S., Vetter, K., and Wadsworth, R.

Published
1997
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7. Spectroscopy of 112Pd using heavy-ion-induced fission.

Author

Krücken, R., Asztalos, S.J., Clark, R.M., Deleplanque, M.A., Diamond, R.M., Fallon, P., Lee, I.Y., Macchiavelli, A.O., Schmid, G.J., Stephens, F.S., Vetter, K., and Zhang, Jing-Ye

Abstract

High-spin states in 112Pd were studied using prompt γ-ray spectroscopy with Gammasphere following heavy-ion-induced fission in the reaction 18O + 208Pb at 91 MeV. A new 8+ level at 2638 keV was discovered with transitions connecting it to the yrast band and the quasi-gamma band. The three, now established, closely spaced 8+ states indicate a mixing between the ground-state band, s-band, and quasi-gamma band. Several high-spin structures with likely negative parity have been extended to higher spin and it is proposed that they are based on the ν h11/2( g7/2 d5/2) and ν h11/2( s1/2 d3/2) configurations. [ABSTRACT FROM AUTHOR]

Published
2001
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9. Quadrupole moments of superdeformed bands in 193Tl.

Author

Krücken, R., Wang, Z., Asztalos, S.J., Becker, J.A., Bernstein, L.A., Clark, R.M., Deleplanque, M.A., Diamond, R.M., Fallon, P., Fotiades, N., Hauschild, K., Lee, I.Y., Macchiavelli, A.O., Schmid, G.J., Stephens, F.S., and Vetter, K.

Abstract

Lifetimes of states in the two strongest superdeformed (SD) bands in 193Tl were measured using the Doppler-shift attenuation method. The reaction 176Yb(23Na,6n)193Tl at a beam energy of 129 MeV was used and γ-rays were detected by the Gammasphere array. Quadrupole moments of 18.3(10) eb and 17.4(10) eb were extracted for SD bands 1 and 2, respectively, using the fractional Doppler-shifts of the SD transitions. The previously reported linking transitions of these SD bands to normal deformed near yrast levels could not be confirmed. No other candidates for linking transitions could be established. [ABSTRACT FROM AUTHOR]

Published
1999
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