适用钛不同焦距X射线照相用的KU_P-T-F曝光曲线

A KUPTF Exposure Curve for the Use of Radiographic Examination of Ti with Various Focal Distances

介绍了可适用钛金属０．４ｍ～１．２ｍ不同焦距、微粒胶片Ｘ射线照相用的ＫＵＰＴＦ新型曝光曲线的制作原理及方法．试验结果表明，新型曝光曲线具有制作简便、经济实用、可兼顾底片象质和拍片效率的优点，是钛制压力容器现场变焦距透照选取准确管电压值的理想工具．

The principle and method of plotting new kUP (tube voltage)T(thickness of specimen)F(focal distance) exposure curves for the use of radiographic examination of Ti with focal distances of 0412 m are described. The test results show that the method of plotting the kUpTF curve is not only simple, economical and practical, but also good for the image quality of the photographic plate and the photographic efficiency. The curve is also ideal for choosing an accurate value of tube voltage for the onsite radiographic examination of Ti pressure vessels.