Test source

Test source with ¹³⁷ Cs (bottom right) with lead shield

A test source is an enclosed source that is used for testing purposes .

In Germany, the “Radiation Protection in Medicine” guideline and the relevant DIN standard DIN 6855 in nuclear medicine require regular (sometimes every working day) constancy tests . Test sources are used to test the responsiveness of probe measuring stations as well as in-vivo and in-vitro measuring stations.

Long -lived nuclides with a half-life greater than 5 years are required for activimeters , for example ¹³⁷ Cs . ⁵⁷ Co , ¹²⁹ I or ¹³³ Ba are also used for in-vivo measuring stations (for example whole-body counters ) and in-vitro measuring stations (for example for radioimmunoassays ) .

literature

• Lilli Geworski, Christoph Reiners: Quality testing of nuclear medicine measuring systems: Constancy test. In: Lilli Geworski, Gerhard Lottes, Christoph Reiners, Otmar Schober (eds.): Recommendations for quality control in nuclear medicine. Schattauer, Stuttgart / New York 2003, ISBN 3-7945-2242-7 .

Web links

• Guideline "Radiation Protection in Medicine" (to the German StrlSchV ), PDF, 841 kB