Guide Lines for the Safe Use of Continuous Shortwave Therapy Equipment Safety of Electrotherapy Equipment Working Group
| Autor: | J Low, M Dyson, S Kitchen, D Kirk, S Bazin, M Docker, G Simpson |
|---|---|
| Rok vydání: | 1992 |
| Předmět: |
Shortwave therapy
medicine.medical_specialty business.industry medicine.medical_treatment Electrical engineering Physical Therapy Sports Therapy and Rehabilitation Radiation Electromagnetic radiation Electrotherapy Safety Equipment Physical therapy Medicine Pulsed mode Power output business Microwave |
| Zdroj: | Physiotherapy. 78:755-757 |
| ISSN: | 0031-9406 |
| DOI: | 10.1016/s0031-9406(10)61639-2 |
| Popis: | Most shortwave therapy apparatus uses electromagnetic radiation at a frequency of 27.12 MHz (11 metres). This frequency is near to that used for CB radio communication and this fact, perhaps, indicates the difficulty of containing the radiation to a specific region of space, or tissue. The power output of the equipment should not be more than 500 watts and is considerably less than this under normal operating conditions. Some manufacturers provide equipment operating at 434.92 MHz although this is relatively uncommon and should be classified as microwave equipment. The radiation can be either continuous or in the form of pulses. Pulsed mode operation is the subject of a separate document. |
| Databáze: | OpenAIRE |
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