Interaction of 14.0 MeV-Neutrons with 12C in Stilbene

1971 ◽  
Vol 26 (2) ◽  
pp. 317-319 ◽  
Author(s):  
H.-U. Fabian
Keyword(s):  
Cross Sections ◽  
Pulse Shape ◽  
Charged Particles ◽  
Pulse Height ◽  
Pulse Height Spectrum ◽  
Pulse Spectrum ◽  
Heavy Charged Particles ◽  
The Cross

AbstractThe pulse height spectrum of all heavy charged particles induced by 14.0 MeV neutrons in a 1" × 1" stilbene scintilla­ tor was measured using a pulse shape discriminator and the associated particle technique. The proton pulse spectrum was subtracted and the remaining alpha-pulse distribution is shown in a diagram. The sum of the cross sections for the reactions 12C (n, n') 3 α and 12C (n, α)9 Be was determined to be σc= (260±20) mb.

scholarly journals Continuous spectra of light charged particles from interaction of 30 MeV energy protons with cooper

2020 ◽  
Vol 239 ◽  
pp. 01033
Author(s):  
Timur Zholdybayev ◽  
Zhuldyz Mukan ◽  
Bakhtiyar Sadykov ◽  
Bek Duisebayev ◽  
Maulen Nassurlla ◽  
...  
Keyword(s):  
Experimental Data ◽  
Cross Sections ◽  
Nuclear Physics ◽  
Charged Particles ◽  
Theoretical Models ◽  
Isochronous Cyclotron ◽  
The Cross ◽  
Light Charged Particles

This paper presents the experimental double-differential and integral cross sections of reactions (p,xp), and (p,xα) on natCu nucleus. The experiment with the protons, accelerated to energy of 30.0 MeV was performed at the isochronous cyclotron of Institute of Nuclear Physics (Kazakhstan). We investigated the adequacy of the theoretical models in explaining the measured experimental data and contributions of direct, preequilibrium and compound processes in the formation of the cross sections were determined. We assert that the traditional frameworks are valid for the description of the experimental data.

Luminescence of Diatomic Molecules II. Energy Dependence of Collisional Deactivation Cross Sections

1972 ◽  
Vol 27 (5) ◽  
pp. 769-776 ◽  
Author(s):  
F. J. Comes ◽  
F Speier
Keyword(s):  
Excited States ◽  
Cross Section ◽  
Cross Sections ◽  
Charged Particles ◽  
Molecular Ions ◽  
Thermal Velocity ◽  
Vibrational States ◽  
Molecular Gases ◽  
Exponential Law ◽  
The Cross

Abstract Photoionization has been used to produce ions of N2, O2. and CO in definite excited states. Deactivating collisions of these ions with molecular gases were described in paper I, where the cross sections of ions with thermal velocity are given for various electronic and vibrational states. By application of an electric field the charged particles are accelerated yielding information on the influence of the kinetic energy of the collision partners on these deactivating collisions. The cross section is found to follow an exponential law σ ~ E-α, with a varying between 0.34 and 0 41 for the different excited stales of the molecular ions. The observations were carried out for a range of kinetic energies from the thermal energy up to 6 eV maximum. This simple exponential law is followed for kinetic energies up to at least 2 eV. At higher energies slight deviations were found to occur

scholarly journals Production of heavy charged particles in proton-proton ultraperipheral collisions at the Large Hadron Collider: survival factor

2021 ◽  
Vol 2021 (10) ◽  
Author(s):  
S. I. Godunov ◽  
V. A. Novikov ◽  
A. N. Rozanov ◽  
M. I. Vysotsky ◽  
E. V. Zhemchugov
Keyword(s):  
Large Hadron Collider ◽  
Cross Sections ◽  
Hadron Collider ◽  
Charged Particles ◽  
High Energy ◽  
Proton Proton ◽  
Heavy Charged Particles ◽  
Survival Factors ◽  
Survival Factor

Abstract Ultraperipheral collisions of high energy protons are a source of approximately real photons colliding with each other. Photon fusion can result in production of yet unknown charged particles in very clean events. The cleanliness of such an event is due to the requirement that the protons survive during the collision. Finite sizes of the protons reduce the probability of such outcome compared to point-like particles. We calculate the survival factors and cross sections for the production of heavy charged particles at the Large Hadron Collider.

Sign in / Sign up

Export Citation Format

Share Document