Series Info:EGYPTIAN SOC NUCLEAR SCIENCES & APPLICATIONS, 1 ELHAMY STR, GARDEN CITY, PO BOX 192, CAIRO, 11016, EGYPT;Volume: 52 Issue: 1 Pages: 44-55
Type:Article
Keywords:University for TRACKS
,
CR-39
,
Activation energy
,
Thermal stability
,
Storage time
,
Annealing temperature
,
CR-39
Abstract:
The samples of poly allyl diglycol carbonate PADC (CR-39) (stored and fresh samples) polymer track detectors have been heated at different annealing temperatures and different annealing times. The thermal stability has been studied for different annealed samples; it was also examined as a function of the storage time. The percentage degree of crystallinity has been studied for different annealed samples and stored samples. The samples were etched in 6 M KOH solution at 70 degrees C for 3 h. The variation of bulk etch rate of isochronal annealed samples has been studied. The results indicate an improvement in the thermal stability of Poly allyl diglycol carbonate PADC; where the bulk etch rate increases with the increase in the annealing temperature and annealing time. The storage time has no noticeable effect on the bulk etch rate of un-annealed samples, though the thermal stability of PADC improved with increasing the storage time.
