Reactions of 88Sr with protons of energies7–85 MeV

1967 ◽  
Vol 45 (10) ◽  
pp. 1149-1160 ◽  
Author(s):  
D. R. Sachdev ◽  
N. T. Porile ◽  
L. Yaffe
Keyword(s):  
Monte Carlo ◽  
Compound Nucleus ◽  
Cross Sections ◽  
Experimental Results ◽  
Excitation Functions ◽  
Monte Carlo Calculations ◽  
High Energies ◽  
The Individual ◽  
Two Peaks ◽  
Evaporation Stage

Excitation functions for the (p,xn) (x = 1–5), (p,p3n), and (p,2pxn) (x = 1, 3, 4) reactions induced in 88Sr by protons of energy from 7 to 85 MeV have been measured by radiochemical methods. Cross sections for the individual isomeric species for the products of (p,2n), (p,3n), (p,4n), and (p,p3n) reactions are also presented.Excitation functions for each of the (p,2p3n) and (p,2p4n) reactions exhibit two peaks, the first of which is assigned to (p,α n) or (p,α 2n) reactions from threshold considerations. The experimental results are compared with Monte Carlo calculations using the codes of Chen et al. for the cascade stage and Dostrovsky et al. for the evaporation stage. The comparison suggests that the calculations of Chen et al. overestimate the extent of compound nucleus contribution at high energies.

(p,n) and (p,pxn) reactions in 127I

1968 ◽  
Vol 46 (20) ◽  
pp. 3171-3176 ◽  
Author(s):  
V. P. Narang ◽  
L. Yaffe
Keyword(s):  
Monte Carlo ◽  
Excitation Function ◽  
Compound Nucleus ◽  
Cross Sections ◽  
Direct Interaction ◽  
Incident Proton ◽  
Initial Portion ◽  
Evaporation Model ◽  
Monte Carlo Calculations ◽  
Radiochemical Methods

Absolute values of the cross sections of (p,n), (p,pn), (p,p2n), and (p,p3n) reactions in 127I have been measured by radiochemical methods for incident proton of energies up to 80 MeV. The initial portion of the excitation function for the (p,n) reaction is characteristic of the compound nucleus mechanism, but evidence for direct interaction is present at higher energies. Above 50 MeV, cross sections are close to the predictions of Monte Carlo calculations based on the cascade–evaporation model. This is particularly true in the case of the (p,pn) and (p,p2n) reactions.

The Scattering of Positrons by Helium: Total Cross Sections up to 270 eV

1975 ◽  
Vol 53 (10) ◽  
pp. 962-967 ◽  
Author(s):  
B. Jaduszliwer ◽  
A. Nakashima ◽  
D. A. L. Paul
Keyword(s):  
Energy Range ◽  
Cross Section ◽  
Cross Sections ◽  
Born Approximation ◽  
Reasonable Agreement ◽  
Experimental Results ◽  
Formation Cross Section ◽  
Sum Rule ◽  
Total Cross Sections ◽  
High Energies

The total cross sections for the scattering of positrons by helium have been measured by the method of transmission in the 16 to 270 eV energy range. The experimental results are higher than those of Canter et al. but are in reasonable agreement with recent results of Griffith et al., and at high energies tend towards Born approximation calculations. The integral of the cross section over positron momentum is smaller than the sum rule estimate made by Bransden et al. A tentative value of (0.034 ± 0.017)πa02 is assigned to the positronium formation cross section at threshold.

Calculations of average characteristics of EAS components and Monte Carlo calculations of their fluctuations using different models of nuclear interactions. II. Muons

1968 ◽  
Vol 46 (10) ◽  
pp. S153-S158 ◽  
Author(s):  
G. T. Murthy ◽  
K. Sivaprasad ◽  
M. V. Srinivasa Rao ◽  
S. C. Tonwar ◽  
R. H. Vatcha ◽  
...  
Keyword(s):  
Monte Carlo ◽  
Experimental Results ◽  
Energy Spectra ◽  
Muon Component ◽  
Monte Carlo Calculations ◽  
Nuclear Interactions ◽  
Shower Size

The results pertaining to the muon component obtained in the calculations described in Part I are presented. The predicted lateral distributions and energy spectra of muons with energies above various thresholds are compared with experimental observations. Also presented are the expected variations of the number of muons with shower size compared with experimental results. None of the models assumed predict in every detail the results obtained experimentally. Modifications that could possibly be made are indicated.

The chloroform/graphite and carbon tetrachloride/graphite interfaces : Monte Carlo calculations of their properties

1983 ◽  
Vol 36 (9) ◽  
pp. 1733
Author(s):  
JE Lane ◽  
GL Quint ◽  
TH Spurling
Keyword(s):  
Monte Carlo ◽  
Carbon Tetrachloride ◽  
Experimental Results ◽  
Grand Canonical Monte Carlo ◽  
Monte Carlo Calculations ◽  
Good For ◽  
Grand Canonical

The Grand Canonical Monte Carlo calculations of the properties of the chloroform/graphite and carbon tetrachloride/graphite interface have been performed at temperatures of 231.2, 268.2 (chloroform only) and 323.2 K. Agreement with experimental results is good for the chloroform/ graphite interface but less satisfactory for the carbon tetrachloride/graphite interface.

scholarly journals Statistical model calculations of the 7Li +11 Β reaction

2019 ◽  
Vol 10 ◽  
pp. 165
Author(s):  
C. Tsabaris ◽  
C. T. Papadopoulos ◽  
R. Vlastou ◽  
A. A. Pakou ◽  
P. A. Assimakopoulos ◽  
...  
Keyword(s):  
Experimental Data ◽  
Statistical Model ◽  
Energy Range ◽  
Cross Section ◽  
Compound Nucleus ◽  
Cross Sections ◽  
Coulomb Barrier ◽  
Reaction Channel ◽  
Model Calculations ◽  
The Individual

The 7Li + 11 Β reaction has been studied in the energy range from a little below to about three times the Coulomb barrier by measuring the cross section of the 7- ray transitions in the residual nuclei produced. Statistical compound nucleus calculations have been performed in order to interpret the experimental data as well as to extract cross sections of the individual exit channels. The statistical compound nucleus theory can reproduce rather well the absolute j - ray and the various reaction channel excitation functions.

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