On the Efficiency of an Exponential Transformation Method for Solving Stochastic Problems of Gamma-Ray Transport Theory

2021 ◽  
Vol 14 (4) ◽  
pp. 372-378
Author(s):  
I. N. Medvedev
Keyword(s):  
Gamma Ray ◽  
Transport Theory ◽  
Transformation Method ◽  
Exponential Transformation ◽  
Stochastic Problems

Randomized exponential transformation algorithm for solving the stochastic problems of gamma-ray transport theory

2020 ◽  
Vol 35 (3) ◽  
pp. 153-162
Author(s):  
Ilia N. Medvedev ◽  
Gennadii A. Mikhailov
Keyword(s):  
Markov Chain ◽  
Radiation Transfer ◽  
Gamma Ray ◽  
Transport Theory ◽  
Numerical Study ◽  
Thick Layer ◽  
Exponential Transformation ◽  
Stochastic Problems ◽  
Transformation Algorithm ◽  
Simulation Algorithms

AbstractThe paper presents a new algorithm of exponential transformation and its randomized modification with branching of a Markov chain trajectory for solving the problem of gamma-ray transport. Based on the example of radiation transfer in water, numerical study of presented algorithms is performed in comparison with standard simulation algorithms. The study of the influence of medium stochasticity on the probability of gamma-quanta passing through a thick layer of the substance is also carried out.

Some Radiological Applications of Gamma-Ray Transport Theory

1959 ◽  
Vol 10 (5) ◽  
pp. 552 ◽  
Author(s):  
M. J. Berger ◽  
L. V. Spencer
Keyword(s):  
Gamma Ray ◽  
Transport Theory

On the possible gamma-ray source in Cygnus

1967 ◽  
Vol 31 ◽  
pp. 469-471
Author(s):  
J. G. Duthie ◽  
M. P. Savedoff ◽  
R. Cobb
Keyword(s):  
Gamma Rays ◽  
Gamma Ray ◽  
Right Ascension

A source of gamma rays has been found at right ascension 20h15m, declination +35°, with an uncertainty of 6° in each coordinate. Its flux is (1·5 ± 0·8) x 10-4photons cm-2sec-1at 100 MeV. Possible identifications are reviewed, but no conclusion is reached. The mechanism producing the radiation is also uncertain.

Solar Flare Energetic Neutral Emission Measurements in the Project Coronas-I

1994 ◽  
Vol 144 ◽  
pp. 635-639
Author(s):  
J. Baláž ◽  
A. V. Dmitriev ◽  
M. A. Kovalevskaya ◽  
K. Kudela ◽  
S. N. Kuznetsov ◽  
...  
Keyword(s):  
Solar Flare ◽  
Energy Range ◽  
Gamma Rays ◽  
Pulse Shape ◽  
Gamma Ray ◽  
Pulse Shape Discrimination ◽  
Shape Discrimination ◽  
Solar Neutron ◽  
Low Altitude

AbstractThe experiment SONG (SOlar Neutron and Gamma rays) for the low altitude satellite CORONAS-I is described. The instrument is capable to provide gamma-ray line and continuum detection in the energy range 0.1 – 100 MeV as well as detection of neutrons with energies above 30 MeV. As a by-product, the electrons in the range 11 – 108 MeV will be measured too. The pulse shape discrimination technique (PSD) is used.

Sign in / Sign up

Export Citation Format

Share Document