The Latitude Effect for Cosmic-Ray Showers

A Study of Cosmic-Ray Bursts

“…Coincidence counter measurements have been made by Auger and Leprince-Ringuet, 3 Clay, Bruins and Wiersma, 4 Johnson and Read, 5 Wilson and Turner, 6 and Neher and Pickering. 7 According to Johnson, 8 the agreement between the two methods has been good, taking into account the fact that one might expect a somewhat greater latitude effect for the vertical intensities (measured by coincident counter systems) than for the integrated directional meas- On a recent voyage from Rio de Janeiro to Boston the vertical intensity of the total and hard components of the cosmic radiation were measured with a Geiger counter telescope apparatus. For the hard component the percentage alteration from high latitudes to the magnetic equator was 5.32±0.46 percent.…”

Sea Level Latitude Effect of Cosmic Radiation

“…Coincidence counter measurements have been made by Auger and Leprince-Ringuet, 3 Clay, Bruins and Wiersma, 4 Johnson and Read, 5 Wilson and Turner, 6 and Neher and Pickering. 7 According to Johnson, 8 the agreement between the two methods has been good, taking into account the fact that one might expect a somewhat greater latitude effect for the vertical intensities (measured by coincident counter systems) than for the integrated directional meas- urements made with ionization chambers, because of the observed increase in latitude effect with altitude.…”

Perfectionnement aux compteurs de Geiger-Müller contenant du CO2

“…Par contre, le mélange CO2 + CS2 n'est pas autoextincteur ce qui oblige à adjoindre au compteur un montage électronique genre Neher [7], [8], [2], compliquant ainsi quelque peu les mesures. De plus, le CS2 est une substance désagréable à manipuler.…”