1994 Volume 43 Issue 5 Pages 371-376
Film thicknesses of several kinds of polymers such as polyester and polypropylene were determined by theoretical calculation of the Rh KαCompton scattering from each polymer. The intensities of Rayleigh and Compton scattered continuous and characteristic X-rays which comprise the Rh KαCompton scattering were calculated. As the reference standard, a polytetrafluoroethylene plate (thickness: 10mm) was used. All of the determined thicknesses are in good agreement with the reference values or those measured with a universal horizontal metroscope. The differences between these values were 01μm for the thickness range of 4260μm. This method of determining polymer film thickness has the following features. (1) Bulk reference standards can be used. (2)Different kinds of polymer films can also be determined using same analytical conditions. This thickness determination for polymer films may be used for magnetic tapes, optical magnetic disks, wrapping films, painted steels, etc.
