Variation of total kinetic energy and mass distributions in the fusion-fission reaction of 16O,19F + 209Bi at near barrier energies

2001 ◽  
Vol 11 (1) ◽  
pp. 47-58 ◽  
Author(s):  
L.M. Pant ◽  
R.K. Choudhury ◽  
A. Saxena ◽  
D.C. Biswas
Keyword(s):  
Kinetic Energy ◽  
Total Kinetic Energy ◽  
Fission Reaction ◽  
Mass Distributions

Total kinetic energy release and mass distributions in prompt and delayed muon induced fission of 238U

1983 ◽  
Vol 124 (3-4) ◽  
pp. 161-164 ◽  
Author(s):  
P. David ◽  
J. Hartfiel ◽  
H. Janszen ◽  
T. Johansson ◽  
J. Konijn ◽  
...  
Keyword(s):  
Kinetic Energy ◽  
Energy Release ◽  
Kinetic Energy Release ◽  
Total Kinetic Energy ◽  
Mass Distributions ◽  
Induced Fission

scholarly journals Total kinetic energy and fragment mass distributions from fission of Th-232 and U-233

2018 ◽  
Vol 193 ◽  
pp. 02003
Author(s):  
Daniel Higgins ◽  
Uwe Greife ◽  
Shea Mosby ◽  
Fredrik Tovesson
Keyword(s):  
Kinetic Energy ◽  
Nuclear Power ◽  
Fuel Cycle ◽  
Total Kinetic Energy ◽  
Incident Neutron ◽  
Science Center ◽  
Weapons Proliferation ◽  
Fragment Mass ◽  
Mass Distributions ◽  
Energy Demands

Properties of fission in Th-232 and U-233 were studied at the Los Alamos Neutron Science Center at incident neutron energies from subthermal to 40 MeV. Fission fragments are observed in coincidence using a twin ionization chamber with Frisch grids. The average total kinetic energy released from fission and fragment mass distributions are calculated from observations of energy deposited and conservation of mass and momentum. Accurate experimental measurements of these parameters are necessary to better understand the fission process in isotopes relevant to the thorium fuel cycle, in which Th-232 is used as a fertile material to generate the fissile isotope of U-233. This process mirrors the uranium breeder process used to produce Pu-239 with several potential advantages including the comparative greater abundance of thorium, inherent nuclear weapons proliferation resistance, and reduced actinide production. Thus, there is increased interest in the thorium fuel cycle to meet future energy demands and improve safety and security while increasing profitability for the nuclear power industry. This research is ongoing and preliminary results are presented.

BIMODAL FISSION IN 258FM

1986 ◽  
Vol 01 (06) ◽  
pp. 377-381 ◽  
Author(s):  
K. DEPTA ◽  
J.A. MARUHN ◽  
W. GREINER ◽  
W. SCHEID ◽  
A. SANDULESCU
Keyword(s):  
Kinetic Energy ◽  
Shell Model ◽  
Fission Products ◽  
Degree Of Freedom ◽  
Total Kinetic Energy ◽  
Heavy Nuclei ◽  
Energy Distributions ◽  
Decay Channels ◽  
Symmetric Fission ◽  
Kinetic Energy Distributions

Within the 2-center shell model we present an explanation for the mass and total-kinetic-energy distributions of fission products of very heavy nuclei called “bimodal fission.” For the case of 258 FM we show that the symmetric fission can be described by a 2-dimensional treatment of the elongation and neck degree of freedom. Owing to shell corrections the system fissions via two decay channels that have distinct kinetic energies.

The Suppression of Flow Separation by Sequential Wall Jets

1976 ◽  
Vol 98 (3) ◽  
pp. 447-452
Author(s):  
P. North
Keyword(s):  
Boundary Layer ◽  
Fluid Flow ◽  
Kinetic Energy ◽  
Energy Flux ◽  
Close Agreement ◽  
Total Kinetic Energy ◽  
Wall Jet ◽  
Wall Jets ◽  
Single Jet ◽  
Flow Devices

The performance of many fluid flow devices is limited by the separation of the turbulent boundary layer. This separation may be suppressed or delayed by use of wall jets, raising questions of jet location and strength. A numerical analysis of a single wall jet gave results in close agreement with experiment. The same analysis of a single wall jet gave results in close agreement with experiment. The same calculation procedure indicated that two sequential wall jets, with the same total kinetic energy flux as the single jet, would suppress separation under conditions where the single jet would not. The best two-jet arrangement would be achieved with 63 percent of the total kinetic energy flux in the first jet. It is possible that three-jet arrangements could provide some further improvement.

scholarly journals Toward fully quantum modelling of ultrafast photodissociation imaging experiments. Treating tunnelling in the ab initio multiple cloning approach

2016 ◽  
Vol 194 ◽  
pp. 81-94 ◽  
Author(s):  
Dmitry V. Makhov ◽  
Todd J. Martinez ◽  
Dmitrii V. Shalashilin
Keyword(s):  
Kinetic Energy ◽  
Ab Initio ◽  
Energy Release ◽  
Kinetic Energy Release ◽  
Total Kinetic Energy ◽  
Recent Effort ◽  
Experimental Measurements ◽  
Quantum Level ◽  
Hydrogen Atoms ◽  
Quantum Simulations

We present an account of our recent effort to improve simulation of the photodissociation of small heteroaromatic molecules using the Ab Initio Multiple Cloning (AIMC) algorithm. The ultimate goal is to create a quantitative and converged technique for fully quantum simulations which treats both electrons and nuclei on a fully quantum level. We calculate and analyse the total kinetic energy release (TKER) spectra and Velocity Map Images (VMI), and compare the results directly with experimental measurements. In this work, we perform new extensive calculations using an improved AIMC algorithm that now takes into account the tunnelling of hydrogen atoms. This can play an extremely important role in photodissociation dynamics.

scholarly journals Total Kinetic Energy and Fragment Mass Distribution of Neutron-Induced Fission of U-233

2017 ◽  
Author(s):  
Daniel James Higgins ◽  
Kyle Thomas Schmitt ◽  
Shea Morgan Mosby ◽  
Fredrik Tovesson
Keyword(s):  
Kinetic Energy ◽  
Mass Distribution ◽  
Total Kinetic Energy ◽  
Fragment Mass ◽  
Induced Fission

scholarly journals Feedback of outflows in the Taurus Molecular Cloud

2012 ◽  
Vol 8 (S292) ◽  
pp. 47-47
Author(s):  
Huixian Li ◽  
Di Li ◽  
Rendong Nan
Keyword(s):  
Kinetic Energy ◽  
Potential Energy ◽  
Gravitational Potential ◽  
Molecular Cloud ◽  
Feedback Effect ◽  
Total Kinetic Energy ◽  
Gravitational Potential Energy ◽  
Taurus Molecular Cloud

AbstractWe collected 27 outflows from the literature and found 8 new ones in the FCRAO CO maps of the Taurus molecular cloud. The total kinetic energy of the 35 outflows is found to be about 3% of the gravitational potential energy from the whole cloud. The feedback effect due to the outflows is minor in Taurus.

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