Two-Proton Energy Spectrum of [sup 12]O Nucleus

2011 ◽  
Author(s):  
N. Teruya ◽  
Sérgio B. Duarte ◽  
Vito R. Vanin
Keyword(s):  
Energy Spectrum ◽  
Proton Energy ◽  
Proton Energy Spectrum

ONE DIMENSIONALITY OF DEUTERON VELOCITY DISTRIBUTION FOR CLUSTER-IMPACT FUSION

1992 ◽  
Vol 06 (10) ◽  
pp. 573-579 ◽  
Author(s):  
YEONG E. KIM ◽  
JIN-HEE YOON ◽  
ROBERT A. RICE ◽  
MARIO RABINOWITZ
Keyword(s):  
Energy Spectrum ◽  
Velocity Distribution ◽  
Proton Energy ◽  
Three Dimensional ◽  
Beam Direction ◽  
One Dimensional ◽  
Proton Energy Spectrum ◽  
Dimensional Distribution

In cluster-impact fusion, the width of the proton energy spectrum gives information about the temperature of the fusing deuterons, and its shape reflects the dimensionality of their velocity distribution. The observed symmetrical spectrum implies a one-dimensional distribution, whereas a three-dimensional distribution would result in a skewed spectrum. One dimensionality implies either extremely rapid thermalization in the beam direction, or the possibility of beam ion fusion.

Estimation of the proton energy spectrum in knee region by analog read-out of ARGO-YBJ experiment

2008 ◽  
Vol 32 (10) ◽  
pp. 807-811
Author(s):  
Qu Xiao-Bo ◽  
Chen Song-Zhan ◽  
Zha Min ◽  
Zhang Xue-Yao ◽  
Feng Cun-Feng
Keyword(s):  
Energy Spectrum ◽  
Proton Energy ◽  
Knee Region ◽  
Proton Energy Spectrum

scholarly journals Using the Proton Energy Spectrum and Microdosimetry to Model Proton Relative Biological Effectiveness

2019 ◽  
Vol 104 (2) ◽  
pp. 316-324 ◽  
Author(s):  
Mark Newpower ◽  
Darshana Patel ◽  
Lawrence Bronk ◽  
Fada Guan ◽  
Pankaj Chaudhary ◽  
...  
Keyword(s):  
Energy Spectrum ◽  
Proton Energy ◽  
Relative Biological Effectiveness ◽  
Proton Energy Spectrum ◽  
Biological Effectiveness

Cosmic rays in an evolving universe

1968 ◽  
Vol 46 (10) ◽  
pp. S623-S626 ◽  
Author(s):  
A. M. Hillas
Keyword(s):  
Energy Spectrum ◽  
Cosmic Rays ◽  
Proton Energy ◽  
Cosmic Ray ◽  
Long Period ◽  
The Past ◽  
Proton Energy Spectrum

If the most energetic cosmic rays that have been detected are of extragalactic origin, and their sources were strong radio emitters, the radio-astronomical evidence suggests that the output from such sources must have been very much greater in the past than at present, varying roughly as t−3 over a long period. In this case, the importance of interactions between the universal flux of microwaves and intergalactic cosmic-ray protons and nuclei above 1015 eV is greatly increased, because of "red shifts" in the energies of the nuclei and the microwaves, and changes in density. The probable result is shown to be a steepening in the proton energy spectrum from a slope of –1.5 to –2.2 over the range 1016 to 1018 eV, as is observed, if the energy spectrum at production is always simply E−1.5.This could mean that the "ankle" in the observed spectrum near 3 × 1018 eV is related to the interaction mentioned, and is not a transition from galactic to extragalactic rays.Difficulties remain in accounting for the spectrum above 3 × 1019 eV.

SU-FF-T-413: Density Scaling of the Proton Energy Spectrum for Analytic Reconstruction of the SOBP

2009 ◽  
Vol 36 (6Part15) ◽  
pp. 2617-2617
Author(s):  
A Guemnie Tafo ◽  
E Fourkal ◽  
I Veltchev ◽  
C Ma
Keyword(s):  
Energy Spectrum ◽  
Proton Energy ◽  
Proton Energy Spectrum

scholarly journals Proton energy spectrum with the DAMPE experiment

2019 ◽  
Vol 209 ◽  
pp. 01030 ◽  
Author(s):  
Antonio De Benedittis
Keyword(s):  
Dark Matter ◽  
Energy Spectrum ◽  
Cosmic Rays ◽  
Kinetic Energy ◽  
Elemental Composition ◽  
Proton Energy ◽  
Dark Matter Particle ◽  
Space Mission ◽  
Galactic Cosmic Rays ◽  
Proton Energy Spectrum

The DAMPE (DArk Matter Particle Explorer) experiment, in orbit since December 17th 2015, is a space mission whose main purpose is the detection of cosmic electrons and photons up to energies of 10 TeV, in order to identify possible evidence of Dark Matter in their spectra. Furthermore it aims to measure the spectra and the elemental composition of the galactic cosmic rays nuclei up to the energy of hundreds of TeV. The proton analysis and the flux with kinetic energy ranging from 50 GeV up to 100 TeV, at the end of two years of data taking, will be presented and discussed.

scholarly journals A Method to Obtain a Maxwell–Boltzmann Neutron Spectrum at kT = 30 keV for Nuclear Astrophysics Studies

2009 ◽  
Vol 26 (3) ◽  
pp. 225-231 ◽  
Author(s):  
J. Praena ◽  
P. F. Mastinu ◽  
G. Martín Hernández
Keyword(s):  
Energy Spectrum ◽  
Energy Distribution ◽  
Neutron Spectrum ◽  
Proton Energy ◽  
Nuclear Astrophysics ◽  
Nuclear Data ◽  
Low Energy ◽  
Neutron Energy Spectrum ◽  
Sample Position ◽  
Lithium Target

AbstractA method to shape the neutron energy spectrum at low-energy accelerators is proposed by modification of the initial proton energy distribution. A first application to the superconductive RFQ of the SPES project at Laboratori Nazionali di Legnaro is investigated for the production of a Maxwell–Boltzmann neutron spectrum at kT = 30 keV via the 7Li(p, n)7Be reaction. Concept, solutions and calculations for a setup consisting of a proton energy shaper and a lithium target are presented. It is found that a power dentisity of 3 kW cm−2 could be sustained by the lithium target and a forward-directed neutron flux higher than 1010 s−1 at the sample position could be obtained. In the framework of the SPES project the construction of a LEgnaro NeutrOn Source (LENOS) for Astrophysics and for validation of integral nuclear data is proposed, suited for activation studies on stable and unstable isotopes.

Sign in / Sign up

Export Citation Format

Share Document