In:
Mathematical Proceedings of the Cambridge Philosophical Society, Cambridge University Press (CUP), Vol. 30, No. 3 ( 1934-07), p. 347-354
Abstract:
Boron and carbon activated by diplon and proton bombardment have been used as positron emitting sources in experiments on the annihilation radiation. By coincidence counting with two Geiger-Müller tubes it has been established that the radiation is emitted in pairs. By the coincidence method of Becker and Bothe it has been shown that the annihilation radiation consists only of “soft” quanta. By ordinary absorption measurements it has been shown that the annihilation radiation is homogeneous with a hardness corresponding to 0·5 million e -volt.
Type of Medium:
Online Resource
ISSN:
0305-0041
,
1469-8064
DOI:
10.1017/S0305004100012536
Language:
English
Publisher:
Cambridge University Press (CUP)
Publication Date:
1934
detail.hit.zdb_id:
1483586-1
detail.hit.zdb_id:
209201-3
SSG:
17,1
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