^{PDFprof.com Search Engine}

NUREG/BR-0024 "Working Safely in Gamma Radiography

What radioisotope is used in gamma radiography?
Iridium-192 (73.8 d): Used in gamma radiography to locate flaws in metal components.
Krypton-85 (10.756 yr): Used for industrial gauging.
Is gamma radiation safe What can it do?
Gamma rays have so much penetrating power that several inches of a dense material like lead, or even a few feet of concrete may be required to stop them.
Gamma rays can pass completely through the human body; as they pass through, they can cause ionizations that damage tissue and DNA.
How does gamma radiography work?
Industrial radiography works by pointing a beam of x-rays or gamma rays at the item being tested.
A detector is lined up with the beam on the other side of the item.
The detector records x-rays or gamma rays that pass through the material.
The thicker the material, the fewer x-rays or gamma rays can pass through.
Shielding.
Avoid the primary X-ray beam.Wear protective equipment (e.g., lead aprons and thyroid collar, leaded goggles, leaded gloves).Use shielding (e.g., mobile shields, lead curtains), when possible.Be aware of the position of the beam.Know how to position themselves and the machine for the minimum dose.

What radioisotope is used in gamma radiography?