Results 251 to 260 of about 2,347,766 (295)

Mass yields in 229Th(n,f)

Journal of Radioanalytical and Nuclear Chemistry, 2007
Cumulative yields of 27 fission products have been determined in 229Th(n,f) by recoil catcher technique followed by gamma-ray spectrometry. Absolute fission yields were arrived at from the fission rate measured by track etch counting method. Mass yields were obtained from the cumulative yields using the charge distribution parameters reported in the ...
C. Agarwal, A. Goswami, P. C. Kalsi, S. Singh, A. Mhatre, A. Ramaswami   +5 more
openaire   +1 more source

Critical Mass, Efficiency, and Yield

2021
This chapter forms the heart of this book. Every gram of enriched uranium or synthesized plutonium produced in the Manhattan Project was obtained at great cost and with great difficulty, so estimating the amount of fissile material needed to make a workable nuclear weapon—the so-called critical mass—was a crucial issue for the developers of Little Boy ...
openaire   +1 more source

Monte Carlo yields hadron masses

Physics Today, 1982
The odds look increasingly favorable that Monte Carlo methods will pay off as a computational tool in the theory of quarks. Over a year ago, theorists began to gain insight into the nature of strong interactions by applying statistical methods to a formulation of quantum chromodynamics on a discrete space–time lattice, but their calculations involved ...
openaire   +1 more source

Mass yields of 241Am thermal-neutron fission

Journal of Inorganic and Nuclear Chemistry, 1971
Abstract Mass yields of sub-threshold fission induced by thermal neutrons were investigated, namely, mass yields of 23 mass chains were determined for 241Am thermal-neutron fission by the conventional radiochemical method and by the direct γ-ray spectrometry method.
Hiromichi Nakahara, Ichiro Fujiwara, Hironobu Okamoto, Nobutsugu Imanishi, Michihiro Ishibashi, Tomota Nishi   +5 more
openaire   +1 more source

Mass-Fission-Yield Curve for Americium-241

Nuclear Science and Engineering, 1965
Mass-yield measurements were made for the fission of 241Am induced by graphite-moderated reactor neutrons.
R. R. Rickard, C. F. Goeking, E. I. Wyatt   +2 more
openaire   +1 more source

Chemical Mass Production of Graphene Nanoplatelets in ∼100% Yield

ACS Nano, 2015
Successful application of graphene is hampered by the lack of cost-effective methods for its production. Here, we demonstrate a method of mass production of graphene nanoplatelets (GNPs) by exfoliation of flake graphite in the tricomponent system made by a combination of ammonium persulfate ((NH4)2S2O8), concentrated sulfuric acid, and fuming sulfuric ...
Ayrat M, Dimiev, Gabriel, Ceriotti, Andrew, Metzger, Nam Dong, Kim, James M, Tour   +4 more
openaire   +2 more sources

Calculation of mass yields for proton-nucleus spallation reactions

Physical Review C, 1986
Nuclear spallation reactions are treated as two step processes involving energy deposition and subsequent evaporation. The first step is calculated in Glauber's multiple scattering formalism with modification for direct knockout processes. Evaporation is treated by following the mean yield of particles from the residual nucleus taken as an excited ...
, Abul-Magd, , Friedman, , Hüfner
openaire   +2 more sources

Yields of medium mass nuclear fragments: Statistical emission

Physical Review C, 1983
The results of a calculation using a newly developed statistical emission formalism are compared with the recently published data of Finn et al. for nuclear fragment yields from high energy proton-nucleus interactions on /sup 132/Xe. Good agreement is noted.
William A. Friedman, William G. Lynch
openaire   +1 more source

Ion yield of a laser plasma mass spectrometer

International Journal of Mass Spectrometry and Ion Processes, 1988
Abstract The spark source of an AEI-MS7 double-focusing mass spectrometer was replaced by laser plasma ionisation. The dependence of the ion yield from the target position, the laser beam focus, the target material, and the laser pulse energy were investigated.
L. Matus, M. Seufert, K.P. Jochum
openaire   +1 more source

Covariance Matrix Evaluations for Independent Mass Fission Yields

Nuclear Data Sheets, 2015
Abstract Recent needs for more accurate fission product yields include covariance information to allow improved uncertainty estimations of the parameters used by design codes. The aim of this work is to investigate the possibility to generate more reliable and complete uncertainty information on independent mass fission yields.
TERRANOVA, NICHOLAS, O. Serot, P. Archier, C. De Saint Jean, SUMINI, MARCO   +4 more
openaire   +1 more source