Dosimetry Verification Phantoms Model 700-706 ATOM® Phantoms were previously manufactured in Riga, Latvia and sold worldwide. Since the late eighties, these phantoms have been used extensively in Australia, Western Europe and the Republics of the former Soviet Union. The complete line of ATOM® phantoms are now being manufactured exclusively by CIRS. Standard phantoms include bone, lung and soft tissue compositions formulated for accurate simulation for diagnostic and therapy energies. Photon attenuation values between 30 keV and 20 MeV are within 1% for bone and soft tissue substitutes and within 3% for lung substitute. The skeleton is made from an average composition of normal cortical and trabecular bone and includes vertebral disks and spinal cord. Standard phantoms consist of 25 mm thick contiguous sections. Each section contains 5 mm diameter through holes and tissue equivalent plugs for TLD placement. Hole locations are optimized for precise dosimetry in more than 20 internal organs (detailed list available upon request). Ion chamber cavities, other grid patterns and hole diameters are available upon request. Standard phantom includes head, torso, upper femur and genitalia. Legs and arms are included with the newborn and 1 year pediatric phantoms. Legs and arms can be manufactured for other phantoms upon special request. All phantoms include detailed technical manual, positioning system and storage case. Attenuation coefficients for all materials is available.