Decrease of cosmic rays in the atmosphere and in a layer of ureum
β Scribed by J. Clay; J.T. Wiersma; E.M. Bruins
- Publisher
- Elsevier Science
- Year
- 1936
- Weight
- 184 KB
- Volume
- 3
- Category
- Article
- ISSN
- 0031-8914
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β¦ Synopsis
Since the lower atmospheric layers give a much' larger decrease of primary rays than found for layers of lead, iron and water of the same mass per em' the possibility is considered that nitrogen might act abnormally on the rays.
In consideration of this possibility the decrease in ureurn, CO(XH,l, is compared with that in water and the behaviour of nitrogen is found to be normal. For this reason we conclude that there must be two different kinds of independent primary radiations.
π SIMILAR VOLUMES
The number of showers of Cosmic Rays was measured in lead cylinders under layers of iron and lead up to 700 gr/cm t β’ 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