公开(公告)号：US4631414A

公开(公告)日：1986-12-23

申请号：US778120

申请日：1985-09-20

申请人： Stanley Kronenberg ,  William L. McLaughlin ,  Carl R. Seibentritt, Jr.

发明人： Stanley Kronenberg ,  William L. McLaughlin ,  Carl R. Seibentritt, Jr.

IPC分类号： G01T1/04 ,  G01T1/20 ,  G01T1/02

CPC分类号： G01T1/04 ,  G01T1/2002

摘要： A radiological measuring instrument including an angularly variable radiation sensitive structure comprised of two blocks of material having a different index of refraction with one of the materials comprising a radiochromic substance whose refractive index changes through anomolous dispersion as a result of being exposed to radiation. The ratio of the two indices of refraction is selected to be close to unity, with the radiation sensitive structure being pivotally adjusted so that light is directed into one end of the block comprising a material having the greater index of refraction. This element, moreover, is selected to be clear and transparent with the incident angle being close to the critical angle where total reflection of all incident light occurs. A portion of the incident light is furthermore projected through the clear transparent block without reflection, with the two beams emerging from the other end of the block, where they are detected. Exposure to radiation changes the index of refraction of the radiochromic block and accordingly the reflected energy emerging therefrom. Calibrated readjustment of the angle of incidence provides a measure of the sensed radiation.

摘要翻译： 一种放射性测量仪器，包括角度可变的辐射敏感结构，其包括具有不同折射率的两块材料，其中一种材料包括由于暴露于辐射而导致其折射率通过异味色散而变化的放射性色素物质。 选择两个折射率的比率接近于单位，其中辐射敏感结构被枢转调节，使得光被引导到包含具有较大折射率的材料的块的一端。 此外，该元件选择为透明且入射角接近所有入射光全反射的临界角。 入射光的一部分进一步通过透明透明块而不反射地突出，两个光束从块的另一端射出，在那里被检测。 暴露于辐射会改变放射性色素块的折射率，从而改变由此产生的反射能量。 入射角的校准调整提供了感测辐射的测量。