
TY  - JOUR
A1  - Martin, SL 
T1  - The Contraction of Nuclear Emulsions
JF  - Australian Journal of Chemistry
JO  - Aust. J. Chem.
Y1  - 1949
VL  - 2
IS  - 3
SP  - 389
EP  - 393
KW  - 
UR  - https://doi.org/10.1071/CH9490389 
N2  - A technique for measuring the fractional change in thickness which occurs when a nuclear emulsion is processed, is described. The method involves the registration in the emulsion of the tracks of &#945;-particles from a radiothorium source and this permanent record can be used to follow any subsequent thickness variations. Some observations on Ilford C2 emulsions, 50&#956; in thickness, have been made and these show considerable variations in thickness over a period of time. Tests indicated that some of the change is probably due to humidity variations. The application of this method to the monitoring of variations in k for emulsions, in which deuterons or other tracks have been registered, is described. 
ER  -

