Colwell, Hector Alfred, Russ, Sidney · London, G. Bell and sons · leaf 49
iarbeaded structure. In addition to the thread-like cloudlets, thereare minute patches of cloud which may be merely foreshortenedthreads. Other fainter and more diffuse patches and streaksare also present, possibly representing older trails, in whichthe ions have had time to diffuse considerably… … Fig. 7 secondary beta- or cathode rays ; some doubtless starting fromthe roof or floor of the cloud chamber, others, however (thelarger number when a limited horizontal beam of X rays isused), originating in the gas. The results are in agreement withBraggs view that the whole of the ionisation by X…
X-rays -- Physiological effect
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