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Barometric variation of ionisation, primaries and showers by cosmic rays under thick layers of matter

✍ Scribed by J. Clay

Publisher: Elsevier Science
Year: 1936
Weight: 125 KB
Volume: 3
Category: Article
ISSN: 0031-8914
DOI: 10.1016/s0031-8914(36)80371-1

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✦ Synopsis

Thc variation is given for ionisation, primaries and showers undcr layers of 56 to 78 ern of iron under the influence of barometric variations. Its value is 2% for I ern of Hg, which is much larger than could be expected from the decrease of hard primaries, which is proportional to density.

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Decrease of primaries, showers and ionis

Decrease of primaries, showers and ionisation of cosmic rays under layers of lead and iron

✍ J. Clay; A. van Gemert; J.T. Wiersma 📂 Article 📅 1936 🏛 Elsevier Science ⚖ 543 KB

The number of showers of Cosmic Rays was measured in lead cylinders under layers of iron and lead up to 700 gr/cm t • The number of showers under iron and lead sheets was also measured. Under lead and iron were found two maxima which are explained by the two kinds of primaries both of which produce