Abstract
The effect of neutron and gamma-ray irradiation on the resistance to thermal decomposition of muscovite mica has been studied. Samples of mica have been exposed to reactor neutrons and 60Co gamma rays. The results show that the neutron irradiation alone does not cause any significant change in the resistance up to a fast neutron fluence of 9 × 10 16 n/cm 2. However, the resistance of samples exposed to a gamma-ray dose of about 1.3 × 10 9 R prior to neutron irradiation increases with increasing fast neutron fluence ranging from 5 × 10 15 to 2× 10 16n/cm 2. Numerous shallow pits are observed in chemically etched mica subjected to the gamma-ray or neutron irradiation. The defect structure in heavily irradiated muscovite mica has been deduced by combining its thermal property and etchability.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
