Calculator for exposure time during radiographic testing
The SoftwareNDT Calculator program calculates exposure times for radiographic testing using the isotopes selenium-75, iridium-192, and cobalt-60.
Exposure Time in Radiographic Testing! An important factor to ensure that the test is performed correctly.
Exposure time refers to the duration during which the test object is exposed to gamma rays. It depends on various factors, such as the type of test object, material thickness, energy of the isotope, and the type of film.
The exposure time determines the film density. The film density during radiographic testing is the factor used to assess the quality of the base material and the weld seam. Differences in film density can indicate material defects, changes in material thickness or irregularities in the weld seam.
The SoftwareNDT Calculator program uses all factors to calculate the exposure time. You can calculate the correct exposure time in just 4 steps.
1: Enter the activity and film type.
2: Enter focus to film distance.
3: Enter the thickness of the base materials and the weld seam.
4: Select the film density in the base material or in the weld seam. Or enter the target film density.
The exposure time is displayed.
Software workspace:
Iridium 192
Thickness: 2 to 150 mm
Selenium 75
Thickness: 1 to 42 mm
Cobalt 60
Thickness: 15 to 200 mm
SoftwareNDT Calculator 1.2
Download our free program for calculating exposure time during radiographic testing!