• The lower energy of Selenium-75 provides improved radiographic contrast sensitivity for thinner materials (0.1-1.2 inches; 2.5-3.0 mm).
• This also translates to more effective shielding efficiency for collimators, portable shields, and radiography devices
• Selenium-75 has a significantly longer half life than Iridium-192

Selenium-75 Physical Data

Halflife: 119.8 days
Exposure Rate: Constant: 0.20 mR-m2/hr-Ci
Energy Range: 100-400 keV

Source Connecting Options

SPEC offers different source connecting adapters that fit most radiography devices. Please contact us for more information on which adapters are best for your devices.
Source Connector Options