is an important medical tool. Many people think of radiation
as uniformly harmful, but doctors routinely use radiation
to promote health. Radiation-emitting pharmaceuticals
can help diagnose and treat many diseases and conditions.
X-ray exposures can both find life-threatening cancers
and help eliminate them. The key to using medical radiation
safely and effectively is to use it at the right dose
and energy level. NIST physicists maintain and continually
improve the nation's standards for radiation measurement
so that doctors can harness the power of radiation to
improve their patients' health.
radiation standards promote safety and save money. Well-calibrated
medicines and machines allow doctors to use the lowest effective