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Your search keyword '"Anderson J.T."' showing total 14 results
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14 results on '"Anderson J.T."'

2. Fast-timing measurements in neutron-rich odd-mass zirconium isotopes using LaBr3:Ce detectors coupled with Gammasphere.

Author

Köster, U., Gamba, E.R., Lalkovski, S., Rudigier, M., Bruce, A.M., Bottoni, S., Carpenter, M.P., Zhu, S., Ayangeakaa, A.D., Anderson, J.T., Berry, T.A., Burrows, I., Carroll, R.J., Copp, P., Carmona Gallardo, M., Cullen, D.M., Daniel, T., Greene, J.P., Gurgi, L.A., and Hartley, D.J.

Subjects
ZIRCONIUM isotopes, NUCLEAR counters, GAMMA rays, QUADRUPOLES, RADIOACTIVE decay
Abstract

A fast-timing experiment was performed at the Argonne National Laboratory to measure the lifetimes of the lowest lying states of nuclei belonging to the deformed regions around mass number A≃110 and A≃150. These regions were populated via spontaneous fission of 252Cf and the gamma radiation following the decay of excited states in the fission fragments was measured using 51 Gammasphere detectors coupled with 25 LaBr3:Ce detectors. A brief description of the acquisition system and some preliminary results from the fast-timing analysis of the fission fragment 100Zr are presented. The lifetime value of τ = 840(65) ps was found for the 2+ state in 100Zr consistent within one standard deviation of the adopted value with 791 +26-35ps. This is associated with a quadrupole deformation parameter of 0.36(2) which is within one standard deviation of the literature value of 0.3556+82-57. [ABSTRACT FROM AUTHOR]

Published
2018

6. A CHARACTERIZATION OF JUVENILE FISH ASSEMBLAGES AROUND MAN-MADE STRUCTURES IN THE NEW YORK-NEW JERSEY HARBOR ESTUARY, U.S.A.

Author

Duffy-Anderson, J.T., Manderson, J.P., and Able, K.W.

Subjects
FISH populations, ESTUARIES, MARINE biology
Abstract

Characterizes juvenile fish assemblages around man-made structures in the New York-New Jersey harbor estuary. Deployment of benthic traps near wrecks, pile fields, piers and open water areas; Significant difference of assemblage structure among habitat types; Suggestion that fish assemblage patterns may be a function of structural complexity.

Published
2003

13. Early development of shoaling behaviour in larval capelin (mallotus villosus).

Author

Morgan, M.J., Anderson, J.T., and Brown, J.A.

Abstract

The ontogeny of shoaling behaviour in early‐stage larval capelin was examined for larvae raised under different conditions of prey concentration and disturbance. Shoals were evident from the first day of observation (day 2 post‐hatch) and time spent shoaling increased as the larvae got older. Both the number of follows and avoids decreased with age as the larvae spent more time in shoals. Disturbance appreared to have little affect on the development of shoaling. As they got older, larvae in high prey concentrations had some tendency to spend more time in shoals than fish in low prey concentrations. [ABSTRACT FROM PUBLISHER]

Published
1994
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