Brochure Narda Broadband Field Meter Series NBM-500 - NARDA - #9

Text version of the page

9 High frequency radiation is useful in science and medicine for non-invasive examination of materials or of the human body. As an example, modern nuclear magnetic resonance tomography makes use of superimposed high frequency fields. Diathermy and hyperthermy, i.e. deep tissue warming using electromagnetic fields, can promote or accelerate the healing process. Controlling the electromagnetic field strength is part of occupational safety. The industrial process should work on the material, and not make the operator sweat. In the same way, subjecting patients to controlled doses of radiation in medical applications should not mean that medical personnel are exposed to uncontrolled or excessive field strengths. A suitable test device can show that permitted field strengths are not being exceeded. It can also help to detect defects, even if it’s only a missing screen or a door that doesn’t shut properly. DIAGNOSE, TREAT