S. V. Paulauskas

University of Tennessee at Knoxville

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R. Grzywacz

University of Tennessee at Knoxville

114

M. Madurga

European Organization for Nuclear Research

K. Miernik

University of Warsaw

C. J. Gross

Oak Ridge National Laboratory

S. Padgett

Lawrence Livermore National Laboratory

M. Wolińska-Cichocka

Oak Ridge National Laboratory

K. P. Rykaczewski

Oak Ridge National Laboratory

N. T. Brewer

Vanderbilt University

C. Mazzocchi

University of Warsaw

A. Korgul

University of Warsaw

Cooperative Institutions

University of Tennessee at Knoxville

147

Oak Ridge National Laboratory

128

Michigan State University

Oak Ridge Associated Universities

University of Warsaw

Rutgers, The State University of New Jersey

National Superconducting Cyclotron Laboratory

Centre National de la Recherche Scientifique

European Organization for Nuclear Research

Joint Institute for Nuclear Astrophysics

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FIRST RESULTS OF DECAY HEAT MEASUREMENTS WITH MTAS AT THE HRIBF

M. Karny A. Fijałkowska Krzysztof Rykaczewski M. Wolińska-Cichocka B. C. Rasco

10.1142/9789814525435_others20

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THE β DECAY OF ⁸¹Zn AND NUCLEAR STRUCTURE AROUND THE N=50 SHELL CLOSURE

S. Padgett M. Madurga R. Grzywacz I. G. Darby S. N. Liddick

Closure (psychology)

Nuclear Structure

Radioactive decay

10.1142/9789814525435_0054

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MATHEMATICAL MODEL OF THE OPERATION OF A WEIGHT BATCHER FOR DRY PRODUCTS

Mechanika (2011)

K. Bendoraitis L. Paulauskas Alis Lebedys S. V. Paulauskas Eugenijus Milčius

The article presents a typical structural scheme and physical model of weight bather for dry products regarded as an elastic system with one degree of freedom, operating together with the attached variable mass body. Dynamic mathematical model of the batcher has been developed. The model describes weight batcher's performance at its five key working stages: filling with the product at increased productivity, accurate low–rate top–up filling, filling suspension (pause before discharge), product discharge and discharge suspension (pause after discharge). Mathematical model allows for theoretical investigation of weight bather performance throughout its entire working cycle as well as analysis of its structural and design features.http://dx.doi.org/10.5755/j01.mech.17.5.734

Suspension

10.5755/j01.mech.17.5.734

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Updated β -decay measurement of neutron-rich Cu74

Physical review. C (2018)

J. L. Tracy J. A. Winger B. C. Rasco Umesh Silwal Durga Siwakoti

The $\ensuremath{\beta}$ decay of neutron-rich $^{74}\mathrm{Cu}$ has been studied at the Holifield Radioactive Ion Beam Facility at Oak Ridge National Laboratory. By using a high-resolution mass separator a purified $^{74}\mathrm{Cu}$ beam was obtained, thus allowing decay through its isobar chain to stable $^{74}\mathrm{Ge}$ without any decay chain member dominating. A total of $170\ensuremath{\gamma}$ rays were associated with $^{74}\mathrm{Cu}\phantom{\rule{4pt}{0ex}}\ensuremath{\beta}$ decay with 111 placed in the $^{74}\mathrm{Zn}$ level scheme. Updated $\ensuremath{\beta}$ feeding intensities and estimated $log(ft)$ values are presented, and new ${J}^{\ensuremath{\pi}}$ assignments are proposed using shell model calculations. The progression of simulated total absorption $\ensuremath{\gamma}$-ray spectroscopy (TAGS) based on proposed levels and $\ensuremath{\beta}$-feeding values from previous measurements to this evaluation are presented and demonstrate the need for a TAGS measurements for this and similar decays.

10.1103/physrevc.98.034309

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Citations (7)

Study of Interference Effects in the 18F(p,alpha)15O Reaction

K. Y. Chae D. W. Bardayan Jeff Blackmon D. Gregory Mike Guidry

The {sup 18}F(p,{alpha}a){sup 15}O reaction plays a crucial role in understanding {gamma}-ray emission from novae. Because of the importance of understanding the {sup 18}F + p reactions, a number of studies of the A=19 isobars have been made using stable and exotic beams. The interference effects among J{sup {pi}} = 3/2{sup +} resonances in the {sup 18}F + p system, however, have never been measured, but they can change the S-factor by a factor of 20 at nova energies. R-matrix calculations indicate that the cross sections above the E{sub c.m.} = 665 keV resonance are sensitive to the interference between the E{sub c.m.} = 8, 38, and 665 keV resonances. In order to study the interference effects, an excitation function for the {sup 1}H({sup 18}F,{alpha}){sup 15}O reaction has been measured in the energy range of E{sub c.m.} = 663-877 keV using radioactive {sup 18}F beams at the Holifield Radioactive Ion Beam Facility. By measuring the {sup 18}F(p,{alpha}){sup 15}O cross section off resonance and comparing the cross section with theoretical calculations, we provide the first experimental constraints on the interference of 3/2{sup +} resonances.

Excitation function

Isobar

Autoionization

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Toward a measurement of weak magnetism in 6He decay

Hyperfine Interactions (2016)

X. Huyan O. Naviliat-Cuncic D. Bazin A. Gade M. Hughes

Magnetism

Energy spectrum

10.1007/s10751-016-1303-8

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Citations (15)

βandβ−ndecay of the neutron-richGe84nucleus

Physical review. C (2016)

A. Korgul K. P. Rykaczewski R. Grzywacz C. R. Bingham N. T. Brewer

The $\ensuremath{\beta}$-decay properties of the very neutron-rich $^{84}\mathrm{Ge}$ nucleus were studied at the Holifield Radioactive Ion Beam Facility at Oak Ridge National Laboratory. Several new $\ensuremath{\gamma}$-transitions and levels were added to its decay scheme and the order of the two lowest-lying levels in the daughter $^{84}\mathrm{As}$ was corrected. For the first time $\ensuremath{\gamma}$ radiation following $\ensuremath{\beta}$-delayed neutron emission was observed. The shell-model calculations and apparent $\ensuremath{\beta}$ transition intensities were used to guide the spin assignment to the $^{84}\mathrm{As}$ levels, in particular for the low-energy part of the level scheme. The new spin-parity $({2}^{\ensuremath{-}})$ proposed for the ground state of $^{84}\mathrm{As}$ is supported also by the systematics of $N=51$ isotones.

10.1103/physrevc.93.064324

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Citations (3)

Experimental study of the β decay of the very neutron-rich nucleus Ge85

Physical review. C (2017)

A. Korgul K. P. Rykaczewski R. Grzywacz C. R. Bingham N. T. Brewer

The $\ensuremath{\beta}$-decay properties of the very neutron-rich nucleus $^{85}\mathrm{Ge}$, produced in the proton-induced fission of $^{238}\mathrm{U}$, were studied at the Holifield Radioactive Ion Beam Facility at Oak Ridge National Laboratory. The level scheme of $\phantom{\rule{0.16em}{0ex}}_{33}^{85}\mathrm{As}_{52}$ populated in $^{85}\mathrm{Ge}\phantom{\rule{4pt}{0ex}}\ensuremath{\beta}\ensuremath{\gamma}$ decay was reconstructed and compared to shell-model calculations. The investigation of the systematics of low-energy levels in $N=52$ isotones together with shell-model analysis allowed us to provide an estimate of the low-energy structure of the more exotic $N=52$ isotone $^{81}\mathrm{Cu}$.

10.1103/physrevc.95.044305

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Citations (3)

Measuring the partial width of the $^{56}$Ni proton-capture resonance through (d,n) with VANDLE and MoNA-LISA

Bulletin of the American Physical Society (2013)

William Peters R. Grzywacz M. Madurga S. V. Paulauskas Stephan P. B. Taylor

Proton magnetic resonance

Source

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Citations (1)

HAGRID/ VANDLE spectroscopy of Rb decays

Bulletin of the American Physical Society (2017)