Ionization Chamber Measurements of the Absorption of theN-Component of Cosmic Rays in Lead

1952 ◽  
Vol 88 (2) ◽  
pp. 206-224 ◽  
Author(s):  
H. S. Bridge ◽  
R. H. Rediker
Keyword(s):  
Cosmic Rays ◽  
Ionization Chamber ◽  
Chamber Measurements

THE ALTITUDE EFFECT ON THE SPECIFIC IONIZING POWER AND ZENITH ANGLE DISTRIBUTION OF COSMIC RAYS

1938 ◽  
Vol 16a (2) ◽  
pp. 29-40 ◽  
Author(s):  
Darol K. Froman ◽  
J. C. Stearns
Keyword(s):  
Cosmic Rays ◽  
Zenith Angle ◽  
Ionization Chamber ◽  
Unit Area ◽  
Cosmic Ray ◽  
Angle Distribution ◽  
Altitude Effect ◽  
Counting System ◽  
Chamber Measurements ◽  
Zenith Angle Distribution

Measurements made with a quadruple-coincidence Geiger-Müller counting system at altitudes of 120 and 14,160 ft. give the intensity, J, of cosmic ray ionizing particles at various zenith angles, ψ. The distribution, J(ψ) = J0e−0.175ψ cos2ψ, does not differ significantly from any measured values, and agrees with all observations within 0.5 and 3.0% of the vertical intensities at the lower and higher altitudes respectively. The total number of rays incident per unit area per unit time was found, and the specific ionization was determined by comparison with ionization chamber measurements. The results are given below.[Formula: see text]† Ionization chamber data from Clay and Jongen (4).* Ionization chamber data from Millikan and Cameron (18).

scholarly journals The nature of large cosmic-ray bursts

1936 ◽  
Vol 154 (881) ◽  
pp. 223-245 ◽  
Keyword(s):  
Cosmic Rays ◽  
Ionization Chamber ◽  
Cosmic Ray ◽  
Conclusive Evidence ◽  
Recording Apparatus ◽  
Ionization Current ◽  
Continuous Record ◽  
Normal Fluctuations

A continuous record of the ionization current produced by cosmic rays in an ionization chamber shows, if the recording apparatus is sufficiently sensitive, occasional relatively large momentary currents superposed on the normal fluctuations. These large momentary currents are generally called “bursts”. They were first discovered by Hoffmann. It has often been assumed that the bursts are of the same nature as the showers which are observed either in the Wilson chamber or by means of three or more coincidence counters; but so far no conclusive evidence, particularly for the larger bursts, has been reported in support of this assumption.

Cable-induced effects on plane-parallel ionization chamber measurements in large clinical electron beams

1994 ◽  
Vol 19 (2) ◽  
pp. 73-76 ◽  
Author(s):  
Claudio Fiorino ◽  
Giovanni Mauro Cattaneo ◽  
Antonella Del Vecchio ◽  
Marcello Fusca ◽  
Barbara Longobardi ◽  
...  
Keyword(s):  
Ionization Chamber ◽  
Electron Beams ◽  
Plane Parallel ◽  
Chamber Measurements

SU-E-T-313: Ionization Chamber Measurements in a Small, Non-Uniform Beam - Applications for Synchrotron Beam Dosimetry

2011 ◽  
Vol 38 (6Part15) ◽  
pp. 3559-3559
Author(s):  
D Anderson ◽  
B Warkentin ◽  
E A Siegbahn ◽  
B G Fallone
Keyword(s):  
Ionization Chamber ◽  
Uniform Beam ◽  
Synchrotron Beam ◽  
Beam Dosimetry ◽  
Chamber Measurements
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