GAMMA RADIATION DETECTOR WITH IMPROVED SIGNAL TREATMENT.
Номер патента: ES2047146T3
Опубликовано: 16-02-1994
Автор(ы): Marlin O Thurston, Raymond Craig Ramsey
Принадлежит: Neoprobe Corp
Опубликовано: 16-02-1994
Автор(ы): Marlin O Thurston, Raymond Craig Ramsey
Принадлежит: Neoprobe Corp
Реферат: A hand-held gamma radiation probe (12) is employed to locate radiation concentrations in animal tissue in conjunction with a control function providing an enhanced audio output particularly suited for curing the user as to source position. The probe (12) is positioned at a location on the animal body representing background radiation and a squelch low count rate is developed therefrom. The squelch low count rate is multiplied by a range factor to develop a squelch high count rate and frequencies are developed from a lock-up frequency table from lowest to highest in correspondance with the developed high and low squelch count rates. Slew rate limiting of the count rates is provided by development of a squelch delta value representing the difference between the squelch high and low count rates divided by a time element. Selection of frequencies for audio output from the frequency table is limited by the value of the squelch delta value. A weighting of received radiation counts is carried out continuously to develop count rate values used by the system.
Gamma radiation detector with enhanced signal treatment
Номер патента: CA1313429C. Автор: Marlin O. Thurston,Raymond Craig Ramsey. Владелец: Neoprobe Corp. Дата публикации: 1993-02-02.