目前,我国用于α径迹找矿的固体径迹探测器材料是灵敏度较低的CA-7801。为了提高探测灵敏度和α径迹找矿效果,研制了较高灵敏度的CN-8022型薄膜。它特别适合于弱氡地区使用。 1.薄膜结构和材料选择 该薄膜采用多层复合膜结构。由表面向底层顺序为保护膜、灵敏层和片基。为使薄膜具有一定的强度,片基采用75℃时老化的涤纶片基,用粘合剂粘接灵 At present, the solid track detector material used for ore prospecting in China is CA-7801 with low sensitivity. In order to improve the detection sensitivity and the effect of α-ray prospecting, a higher sensitivity CN-8022 film was developed. It is particularly suitable for use in areas with weak radon. 1. Film structure and material selection The film uses a multi-layer composite membrane structure. From the surface to the bottom of the protective film, sensitive layer and film base. In order to make the film have a certain strength, the film base with 75 ℃ aging polyester base, adhesive bonding agent