The number of prompt neutrons and the kinetic energy of fragments during low-energy fission of U235

1964 ◽  
Vol 15 (1) ◽  
pp. 725-728
Author(s):  
Yu. A. Blyumkina ◽  
I. I. Bondarenko ◽  
V. F. Kuznetsov ◽  
V. G. Nesterov ◽  
V. N. Okolovich ◽  
...  
Keyword(s):  
Kinetic Energy ◽  
Low Energy

scholarly journals The ELENA facility

2018 ◽  
Vol 376 (2116) ◽  
pp. 20170266 ◽  
Author(s):  
Wolfgang Bartmann ◽  
Pavel Belochitskii ◽  
Horst Breuker ◽  
Francois Butin ◽  
Christian Carli ◽  
...  
Keyword(s):  
Kinetic Energy ◽  
Beam Energy ◽  
Low Energy ◽  
Electron Cooler ◽  
Transfer Lines ◽  
Experimental Area ◽  
Active User ◽  
Lower Beam ◽  
The Status ◽  
The Given

The CERN Antiproton Decelerator (AD) provides antiproton beams with a kinetic energy of 5.3 MeV to an active user community. The experiments would profit from a lower beam energy, but this extraction energy is the lowest one possible under good conditions with the given circumference of the AD. The Extra Low Energy Antiproton ring (ELENA) is a small synchrotron with a circumference a factor of 6 smaller than the AD to further decelerate antiprotons from the AD from 5.3 MeV to 100 keV. Controlled deceleration in a synchrotron equipped with an electron cooler to reduce emittances in all three planes will allow the existing AD experiments to increase substantially their antiproton capture efficiencies and render new experiments possible. ELENA ring commissioning is taking place at present and first beams to a new experiment installed in a new experimental area are foreseen in 2017. The transfer lines from ELENA to existing experiments in the old experimental area will be installed during CERN Long Shutdown 2 (LS2) in 2019 and 2020. The status of the project and ring commissioning will be reported. This article is part of the Theo Murphy meeting issue ‘Antiproton physics in the ELENA era’.

Neutral Beam Source Design and Beam Kinetic Energy Activated SiO2 Etching

1992 ◽  
Vol 279 ◽  
Author(s):  
Lee Chen ◽  
Akihisa Sekiguchi ◽  
Dragan Podlesnik
Keyword(s):  
Kinetic Energy ◽  
Chemical Reaction ◽  
Incident Energy ◽  
Beam Energy ◽  
Large Diameter ◽  
Low Energy ◽  
Neutral Beam ◽  
Beam Source ◽  
Neutral Radical ◽  
Unique Method

ABSTRACTAn unique method is used to produce a low energy nonthermalized fast neutral radical beam wliich can activate the SiO2 surface for chemical reaction at the desired incident energy. The fast neutral beam energy is continuously adjustable (2eV<Ek<200eV) and the beam flux is typically 5×1015cm−2 sec−1(∼4L). An uniform large diameter plasma is also made for the production of neutral beam covering 5”wafer and larger. Large diameter neutral beam single wafer reactor is feasible with off-the-shelf pumping technology.

ON THE TWO-POINT APPROXIMATION TO THE EFFECTIVE CHIRAL ACTION FOR LARGE SOLITONS

1992 ◽  
Vol 07 (15) ◽  
pp. 3549-3565 ◽  
Author(s):  
J. A. ZUK ◽  
I. ADJALI
Keyword(s):  
Kinetic Energy ◽  
Casimir Energy ◽  
Low Energy ◽  
Linear Profile ◽  
Term Linear ◽  
Point Approximation ◽  
Negative Constant ◽  
Linear Kinetic

The two-point approximation to the effective chiral action with finite cut-off — as used to provide a low-energy soliton description of the nucleon — is studied in the limit of large soliton sizes, R. For some soliton profiles, the expectation that, in the large-R limit, the Casimir energy approaches a term linear in R with leading correction of order R−1 is not fulfilled. We classify these profiles and show that the two-point approximation can be used to elucidate the true behaviour in such cases. For the linear profile, the asymptotic curve is found to run parallel to the linear kinetic energy, but displaced by an analytically computable negative constant.

scholarly journals THE MOST COMPACT SCISSION CONFIGURATION OF FRAGMENTS FROM LOW ENERGY FISSION OF 234U AND 236U

2019 ◽  
pp. 1-4
Keyword(s):  
Kinetic Energy ◽  
Ground State ◽  
Time Of Flight ◽  
Low Energy ◽  
Total Kinetic Energy ◽  
Light Fragment ◽  
Primary Mass ◽  
Palabras Clave ◽  
Cold Fission ◽  
Fragment Kinetic Energy

THE MOST COMPACT SCISSION CONFIGURATION OF FRAGMENTS FROM LOW ENERGY FISSION OF 234U AND 236U Modesto Montoya Zavaleta DOI: https://doi.org/10.33017/RevECIPeru2009.0001/ RESUMEN Usando una técnica de tiempo de vuelo, Signarbieux et al. midieron el valor máximo de la energía cinética total en función de la masa primaria de los fragmentos de la fisión de baja energía de 234U y 236U. De los cálculos de las configuraciones de escisión, puede concluirse que, para esos dos sistemas físiles, el valor máximo de la energía cinética corresponde a las fragmentaciones 42Mo62, 50Sn80 y 42Mo64, 50Sn80), respectivamente, son iguales a los valores disponibles de energía, y sus configuraciones de escisión están compuestas por un fragmento pesado esférico y un fragmento liviano prolato, ambos en sus estados fundamentales. PALABRAS CLAVE: Fisión a baja energía; 234U; 236U; energía cinética de fragmentos; fisión fría. ABSTRACT Using a time of flight technique, the maximal values of kinetic energy as a function of primary mass of fragments from low energy fission of 234U and 236U were measured by Signarbieux et al. From calculations of scission configurations, one can conclude that, for those two fissioning systems, the maximal value of total kinetic energy corresponding to fragmentations (42Mo62, 50Sn80) and (42Mo64, 50Sn80) respectively, are equal to the available energies, and their scission configurations are composed by a spherical heavy fragment and a prolate light fragment both in their ground state. Keywords: Low energy fission; 234U; 236U; fragment kinetic energy; cold fission.

Pathophysiology of ballistic trauma

2016 ◽  
Author(s):  
Michael C. Reade ◽  
Peter D. Thomas
Keyword(s):  
Energy Transfer ◽  
Kinetic Energy ◽  
Pressure Wave ◽  
Mass Movement ◽  
High Energy ◽  
Low Energy ◽  
Wound Contamination ◽  
Blast Fragmentation ◽  
Low Energy Transfer ◽  
Ballistic Trauma

Bullets and other projectiles cause ballistic trauma. Explosions wound by the effect of a blast pressure wave, penetrating fragments propelled by the explosion, the mass movement of gas interacting with the casualty or the environment, and miscellaneous effects. Most blast casualties surviving to hospital care will not have significant pressure wave injury, but some will. Blast fragmentation most commonly resembles other types of low energy transfer ballistic trauma.. The effect of bullets depends on the kinetic energy transferred and the nature of the tissues struck, with energy transfer partly determined by bullet design. Low energy transfer bullets wound by crushing and laceration, limited to the tissues struck. High energy bullets may impart kinetic energy to surrounding tissues, causing a temporary cavity which sucks in debris and damages tissues sometimes well beyond the bullet track. Predicting the extent of devitalization can be difficult at the time of initial inspection. Wound contamination, particularly with soil, may modify the usual conservative approach to initial debridement.

scholarly journals Measurements of the kinetic-energy-release (KER) of vibrational cooled HeH+ and H3 + at the electrostatic Frankfurt low energy storage ring (FLSR)

2017 ◽  
Vol 875 ◽  
pp. 092003
Author(s):  
J. C. Müller ◽  
R. Dörner ◽  
F. King ◽  
L. Ph. H. Schmidt ◽  
M. S. Schöffler ◽  
...  
Keyword(s):  
Energy Storage ◽  
Kinetic Energy ◽  
Energy Release ◽  
Storage Ring ◽  
Kinetic Energy Release ◽  
Low Energy

scholarly journals Measuring the Dissipation Rate of Turbulent Kinetic Energy in Strongly Stratified, Low‐Energy Environments: A Case Study From the Arctic Ocean

2018 ◽  
Vol 123 (8) ◽  
pp. 5459-5480 ◽  
Author(s):  
Benjamin Scheifele ◽  
Stephanie Waterman ◽  
Lucas Merckelbach ◽  
Jeffrey R. Carpenter
Keyword(s):  
Kinetic Energy ◽  
Arctic Ocean ◽  
Turbulent Kinetic Energy ◽  
Dissipation Rate ◽  
Low Energy ◽  
The Arctic ◽  
The Arctic Ocean

CHARGE TRANSPORT IN ELECTRON-DOPED CUPRATES

2005 ◽  
Vol 19 (01n03) ◽  
pp. 59-61
Author(s):  
TIANXING MA ◽  
HUAIMING GUO ◽  
SHIPING FENG
Keyword(s):  
High Temperature ◽  
Kinetic Energy ◽  
Low Temperature ◽  
Charge Transport ◽  
Qualitative Agreement ◽  
Magnetic Energy ◽  
Low Energy ◽  
Conductivity Spectrum ◽  
Energy Peak

Within the t-t'-J model, the charge transport in electron-doped cuprates is studied. The conductivity spectrum is characterized by a low-energy peak and unusual midinfrared band, while the resistivity exhibits a crossover from the high temperature metallic-like to low temperature insulating-like behavior in the relatively low doped regime, and a metallic-like behavior in the relatively high doped regime, which is qualitative agreement with experiments. Our results show that such unusual charge transport is closely related to a competition between the kinetic energy and the magnetic energy.

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