A microcomputer-based multithermocouple system for use in microwave fields

P. R. Horseman Departments of Medical Physics and Radiotherapy, Charing Cross Hospital, London, W6 8RF; Medical Physics Department, Queen Elizabeth Hospital, Birmingham, B15 ZTT, UK

D. J. Law Departments of Medical Physics and Radiotherapy, Charing Cross Hospital, London, W6 8RF; 11 Haworth Drive, Bootle, Merseyside, L20 6EJ, UK

P. B. Dunscombe Departments of Medical Physics and Radiotherapy, Charing Cross Hospital, London, W6 8RF; Department of Medical Physics, Manitoba Cancer Treatment and Research Foundation, Winnipeg, Manitoba, Canada

K. Gammampila Departments of Medical Physics and Radiotherapy, Charing Cross Hospital, London, W6 8RF

B. M. Soutbcott Departments of Medical Physics and Radiotherapy, Charing Cross Hospital, London, W6 8RF

Abstract

A PET-controiled multithermocouple system employing Analog Devices 4 channel amplifiers has been constructed. The intended application of the equipment is the measurement of the temperature distribution in patients receiving microwave hyperthermia as part of cancer therapy. The equipment has been shown to be sufficiently accurate and, in addition, is not susceptible to r.f. interference at the power levels in use in this hospital for microwave hyperthermia.

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A microcomputer-based multithermocouple system for use in microwave fields

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A microcomputer-based multithermocouple system for use in microwave fields

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