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.
Ionisation by cosmic rays in gases
β Scribed by J. Clay; H.J. Stammer
- Publisher
- Elsevier Science
- Year
- 1939
- Weight
- 429 KB
- Volume
- 6
- Category
- Article
- ISSN
- 0031-8914
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π SIMILAR VOLUMES
In the following pages the results are given of the measurements of the number and the average life of ions, and of the number of charged and uncharged condensation-nuclei in the air on the open sea. The number of fast ions was constantly recorded with the aid of an E be r t-aspirator combined with
By using an ionisation instrument which records every one or two minutes it is possible to follow the variation of intensity of a radiation. We found that variations of gamma radiation were followed without any delay. On the contrary the variation of the intensity of cosmic radiation, by changing th
Clay and Van Tijn state that the "time of decay" is 8.6 minutes. terpret this to be the value of the half-life.
The ionisation of argon due to cosmic and radioactive rays was investigated up to a pressure of 100 a{m The ionisation d u e to particles originating in the gas under the action of the incident radiation was separated from the portion which is due to particles emitted by the wall. By the incident r