Manual Processing of X-Ray and Gamma-Ray Films – Preliminary Study

Abstract

Radiographic testing (RT) is a non- destructive technique (NDT) method which uses either X-rays or Gamma rays to examine the internal structure of manufactured components identifying any flaws or defects. Advantages of RT include it can be used with most materials, provides a permanent image record of the test, reveals internal nature of materials, discloses fabrication errors and often indicates necessary corrective action and reveals structural discontinuities and assembly errors. Both radiation sources have different properties in term of energy level, intensity and wavelength. There are several issues based on the quality of the film such as poor development, film fogging and poor contrast. Due to that, radiographic film processing is an important steps to produce visible image. The objective of this study is to study a radiographic film using manual processing. Both X-ray and Gamma- ray film will undergo six steps which are developing, stop bath, fixing, washing, wetting agent and drying. After drying, both film will undergo viewing process using Densitometer.  The identification in the radiographic film was identified based on the instruction number, personal number, specimen number and date of testing. The results shows a different quality of visible image formed for both X-ray and Gamma- Ray.