Gamma camera check sources

Line sources are used for determining the centre of rotation of gamma cameras.

Construction

Co-57 is mixed homogeneously with a plastic resin in a flexible tube (2 mm in diameter, 200 mm long) which is sealed in an aluminium tube. The tube is mounted in an acrylic glass holder. The line source (total dimensions: 6.5 mm diameter x 225 mm length) is supplied in a lead-shielded wooden presentation box.

Thyroid phantoms are designed for checking gamma cameras and scanners and for demonstration purposes.

Construction

The radioactive material is homogeneously distributed in a plastic resin, covered with a protective coating. The phantom has the shape of a normal thyroid with ‘hot’ and ‘cold’ nodules.
The phantom is available containing:
Ba-133 (92%)/ Cs-137 (8%) to simulate I-131 or
Co-57 to simulate Tc-99m.