Polyvinylidene Fluoride (PVDF) nuclear track membrane (NTM) has been r
ecently developed by chemical etching of ''solef'' (trade name) foils
which are 50mm in diameter and 40 mum in thickness. The irradiation of
''solef'' were carried out by using various heavy ions with different
specific energies at UNILAC (GSI Darmstadt, Germany).PVDF is a specia
l plastics with many interesting physical,chemical and electrical prop
erties which will be summarized in the paper.The elaboration, etching
and technical parameters of PVDF NTM will be also briefly discussed.