Imaging large vessels using cosmic-ray muon energy-loss techniques

2007 ◽  
Vol 130 (2-3) ◽  
pp. 75-78 ◽  
Author(s):  
P JENNESON ◽  
W GILBOY ◽  
S SIMONS ◽  
S STANLEY ◽  
D RHODES
2019 ◽  
Vol 208 ◽  
pp. 08006
Author(s):  
R.P. Kokoulin ◽  
N.S. Barbashina ◽  
A.G. Bogdanov ◽  
S.S. Khokhlov ◽  
V.A. Khomyakov ◽  
...  

An experiment on the measurements of the energy deposit of inclined cosmic ray muon bundles is being conducted at the experimental complex NEVOD (MEPhI). The complex includes the Cherenkov water calorimeter with a volume of 2000 m3 and the coordinate-tracking detector DECOR with a total area of 70 m2. The DECOR data are used to determine the local muon densities in the bundle events and their arrival directions, while the energy deposits (and hence the average muon energy loss) are evaluated from the Cherenkov calorimeter response. Average energy loss carries information about the mean muon energy in the bundles. The detection of the bundles in a wide range of muon multiplicities and zenith angles gives the opportunity to explore the energy range of primary cosmic ray particles from about 10 to 1000 PeV in the frame of a single experiment with a relatively small compact setup. Experimental results on the dependence of the muon bundle energy deposit on the zenith angle and the local muon density are presented and compared with expectations based on simulations of the EAS muon component with the CORSIKA code.


1984 ◽  
Vol 37 (5) ◽  
pp. 575 ◽  
Author(s):  
DP Bhattacharyya ◽  
Pratibha Pal ◽  
A Mukhopadhyay

The muon intensities in sea-water depths up to 1400 M.W.E. have been derived from a recent primary cosmic ray spectrum. The scaling hypothesis of Feynman has been used in the calculation of meson spectra in the atmosphere. The range-energy relation for muons in sea water, used in the present work, accounts for the muon energy loss in sea water due to collisions, pair production, bremsstrahlung and nuclear interactions. The calculated muon range spectrum in sea water is well in accord with the experimental data obtained by Higashi et al. (1966), Davitaev et al. (1969), and Rogers and Tristam (1981, 1983


Author(s):  
Y. Charara ◽  
L. Townsend ◽  
H. Moussa ◽  
R. Hatcher ◽  
C. Dudney ◽  
...  

The rate of energy loss of muons is examined by com paring the observed depth-intensity relation with that predicted from a knowledge of the sea-level energy spectrum of cosmic ray muons. The evidence for each of the parameters entering into the analysis is assessed and estimates are made of the sea-level muon spectrum up to 10000 GeV and the depth-intensity relation down to 7000 m.w.e. The effect of range-straggling on the underground intensities is considered and shown to be important at depths below 1000 m.w.e. Following previous workers the energy loss relation is written as -d E /d x =1.88+0.077 in E ' m / mc 2 + b E MeV g -1 cm 2 , where E ' m is the maximum transferrable energy in a /i-e collision and m is the muon mass. The first two terms give the contribution from ionization (and excitation) loss and the third term is the combined contribution from pair production, bremsstrahlung and nuclear interaction. The best estimate of the coefficient b from the present work is b = (3.95 + 0.25) x 10 -6 g -1 cm 2 over the energy range 500 to 10000 GeV, which is close to the theoretical value of 4.0 x 10 -6 g -1 cm 2 . It is concluded that there is no evidence for any marked anomaly in the energy loss processes for muons of energies up to 10000 GeV.


Measurements have been made of the energy loss of cosmic ray particles in metal plates, making use of a counter controlled cloud chamber in a magnetic field (Blackett 1936). A metal plate was placed across the centre of the chamber and the energy loss of a ray was deduced from the difference of the curvature of a track above and below the plate. Energy loss measurements by this method have been carried out by Anderson and Neddermeyer (1936) up to an energy of about 4 x 10 8 e-volts and recently by Crussard and Leprince-Ringuet (1937) up to an energy of 1·2 x 10 9 e-volts. The curvature measurements were made mainly by means of the optical null method recently described (Blackett 1937 a ) and this proved invaluable. It would have been hard to obtain so high an accuracy by the usual method of measuring coordinates. The curvature corrections to be applied to the measured curvatures were obtained by measurements on tracks in zero magnetic field (Blackett and Brode 1936). Two separate distortion curves were required, one for the top and one for the bottom of the chamber.


1992 ◽  
Vol 45 (9) ◽  
pp. 3042-3050 ◽  
Author(s):  
W. K. Sakumoto ◽  
P. de Barbaro ◽  
A. Bodek ◽  
H. S. Budd ◽  
B. J. Kim ◽  
...  
Keyword(s):  

1963 ◽  
Vol 81 (6) ◽  
pp. 1137-1139 ◽  
Author(s):  
D G Jones ◽  
R H West ◽  
A W Wolfendale

1968 ◽  
Vol 46 (10) ◽  
pp. S365-S368 ◽  
Author(s):  
G. N. Kelly ◽  
P. K. MacKeown ◽  
S. S. Said ◽  
A. W. Wolfendale

The Durham Horizontal Spectrograph has been used to study the variation with energy of the frequency of electromagnetic interactions of muons. A considerable increase in the frequency of occurrence of electromagnetic showers with muon energy is observed and is attributable in the main to direct pair production. The form of the variation with energy of the interaction probabilities and the frequency of successive interactions of the same particle are consistent with all the particles being muons, and it is concluded that there is no evidence in favor of the existence of particles having an unusually high probability of burst production–the X particles postulated by Vernov et al. (1966)–at least in the near-horizontal cosmic-ray beam at ground level.


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