Gamma cameras detect gamma rays emitted by radioactive isotopes administered to a patient. A collimator focuses the gamma rays onto a scintillation crystal, which converts them into light photons. Photomultiplier tubes amplify the light signals, and electronic circuitry processes the signals to create an image of the isotope distribution. Gamma cameras are used to diagnose a wide range of conditions, including cancer, heart disease, and neurological disorders. Supply chain considerations include the availability of specialised detectors, collimators, and electronic components. Logistical challenges involve the transportation and installation of sensitive equipment. Accessibility for developing countries is limited by the high cost and technical expertise required for operation and maintenance.
Overview
Maturity
Gamma cameras are a mature technology, primarily used in nuclear medicine.
Safety considerations
Gamma cameras use radioactive isotopes, requiring careful handling and disposal to minimise radiation exposure to patients and staff. Shielding and safety protocols are essential.
Security considerations
Gamma cameras do not contain nuclear materials. The main nuclear security concerns are sabotage, or compromise of its detection function, data integrity, and potential misuse in support of illicit nuclear/radiological activity.
Safeguarding considerations
Due to the absence of nuclear materials, IAEA safeguards are not applicable.
