Page 211 - Radiochemistry and nuclear chemistry

Detection and Measurement Techniques 195

; ~ ).Jr_),,,, ~ - . . ~ : --~. ` ~ - _ ~

9 ., ~ _~-.--- -
'~ i)'i)'1,

(a) ,;~, , ~i l

(e)

..

9 . 9 )
FIG. 8.2. Tracks of highly ionizing particles in solid absorbers. (a) Alpha-tracks originating
in the same point in a nuclear emulsion. (Acc. to P. Cuer.) (b) Autoradiography of a lung
showing deposits of inhaled plutonium. (Ace. to B. A. Muggenburg.) (c) Fission tracks in
neutron irradiated apatite containing some evenly distributed uranium. (Ace. to E. I.
Hamilton.) (d) Neutron-induced fission tracks in muscovite mineral. (Acc. to E. I.
Hamilton.) (0) Neutron-induced fission tracks in volcanic glass recovered from deep sea
sediments. (Ace. to J. D. Macdogall.) (f) Fission tracks in mineral from the Oldo mine.
(Ace. to J. C. Dran et.aL) (g) Fission tracks from ~2Cf in Lexan polycarbonate. (From
Fleischer, Price, and Walker.)