Abstract
ON the expedition organised by the Deutscher und Oesterreichischer Alpenverein in 1932 to the Andes of Peru, observations of cosmic rays were made at several heights up to 6,100m. and during the seavoyage. From Bremen to Peru one apparatus worked during March and April 1932 on board the M.S. Erfurt of the Norddeutscher Lloyd line. On the return voyage in January and February 1933, three apparatuses were in full action from Peru through the Strait of Magellan to Hamburg on board the M.S. Isis of the Hamburg-Amerika line. The self-recording electrometers were constructed by Prof. E. Regener on the same principle as those used for his researches in Lake Constance1 and in the upper atmosphere2. The electrometer wire is inside an ionisation chamber of 16 cm. diameter with deltametal walls of 1 cm. thickness. The position of the wire is photographed every half-hour on a fixed photographic plate.
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References
Regener, E., Z. Phys., 74, 433; 1932.
Regener, E., Phys. Z., 34, 306; 1933.
Clay, J., Naturwiss., 20, 687; 1932.
Compton, A. H., Phys. Rev., 43, 387; 1933.
Lenz, E., Z. Phys.; in the press.
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HOERLIN, H. Latitude Effect of Cosmic Radiation. Nature 132, 61 (1933). https://doi.org/10.1038/132061a0
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DOI: https://doi.org/10.1038/132061a0
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