SCAR/ GAMMASAFE ( CLOSE PROXIMITY RADIOGRAPHY)

Designed for unparalleled handiness, the GammaMat SE gamma projector offers unique and unrivalled portability not found in other systems. This rugged, light-weight and easy-to-use gamma projector uses Selenium-75 ( Se-75) as its radiation source. Se-75 provides greatly improved image quality over other isotopes commonly used, a longer half-life and simplified radiation protection due to its lower gamma energy. Compared to projectors that use higher energy gamma sources, the GammaMat SE loaded with a Se-75 radiation source can be safely used in smaller controlled test areas. All of these features result in substantial cost savings to the user. Higher Image Quality using Selenium-75 Se-75 provides significantly higher image quality than Ir-192 imaging systems. The gamma ray spectrum of Se-75 ranges from 66 keV to 401 keV, with two lines of high intensity at 136 keV and 265 keV dominating this spectrum. These radiation characteristics are between Yb-169 towards the lower energies and Ir-192 towards the higher energies. The wide gamma spectrum of Se-75 makes it an ideal choice for gamma radiography, especially for a steel wall thickness in the range of 5 mm to 30 mm ( 0.2 in to 1.18 in) .