Authorized User – Radiopharmaceuticals and Radionuclides for Human Use

Authorized users are ultimately responsible for the safe use of radioactive materials or radiation-producing machines under their control.

Authorized Nuclear Medicine Physician

Clinical use of radiopharmaceuticals: If approved by the Clinical Radiation Safety Committee, nuclear medicine physicians who are authorized users (AU) may select radiopharmaceuticals in accordance with their professional judgment for the treatment and diagnosis of human beings provided that the radiopharmaceutical is approved for human use by the FDA.

Authorized Radiation Oncologist

Clinical use of accelerators: If approved by the Clinical Radiation Safety Committee, physicians who are authorized users may use an accelerator for the treatment of humans.

Clinical use of sealed sources: If approved by the Clinical Radiation Safety Committee, physicians who are authorized users may use a high-dose rate (HDR) internal brachytherapy device or, may use other types of brachytherapy.

Authorized Medical Physicist – Radioactive Material or Therapeutic Device

Clinical use of medical devices: If approved by the Clinical Radiation Safety Committee, an Authorized Medical Physicist (AMP) is a medical physicist who will only use radioactive material (e.g., sources for ophthalmic treatment, HDR) or therapeutic device(s) for medical use (e.g., linear accelerator).

Prior to Clinical Work

Authorized Users must be approved by the Clinical Radiation Safety Committee prior to work requiring AU status.

Physicians who are authorized users meet the requirements in NRC regulations 10 CFR PART 35–Medical Use of Byproduct Material.

Note: To be on Stanford’s broad scope radioactive material license, Authorized Users must be approved by the Clinical Radiation Safety Committee prior to radiopharmaceuticals administrations.