公开(公告)号：US3809903A

公开(公告)日：1974-05-07

申请号：US20375771

申请日：1971-12-01

Applicant: INDUSTRIAL NUCLEONICS CORP

Inventor： CHO B ,  STURKOL E ,  WIER K

IPC: G01N23/16 ,  H01J39/28 ,  H01J37/20

CPC classification number: G01N23/16

Abstract: A radiation transmission gauge to measure during manufacture the low atomic number, non-homogeneous, large thickness materials, such as fiberglass, using primarily the radiation photoelectric effect. The gauge source-detector geometry provides monoenergetic X-rays in the 14-30 KEV range, produced by a primary source of gamma radiation of higher energy, through fluorescence of a target. The radiation detector uses Krypton gas and the target material is selected to produce a fluorescence radiation that is above and substantially close to the K-edge of the Krypton gas. Other features of the source-detector geometry minimize the presence of the primary source radiation, to improve gauge accuracy.

Abstract translation: 辐射传输仪在制造过程中要测量低原子数，非均匀，大厚度的材料，如玻璃纤维，主要采用辐射光电效应。 量规源检测器几何提供14-30KEV范围内的单能X射线，由较高能量的γ射线的主要来源通过靶的荧光产生。 放射线检测器使用氪气，并且选择目标材料以产生高于且基本上接近氪气的K边缘的荧光辐射。 源 - 检测器几何形状的其他特征最小化了主源辐射的存在，从而提高计量精度。