(under subclass 256) Subject matter wherein the means to detect radiation emanating naturally or radiation modified or caused by the material interacting with the radiation includes a detector and includes radiation modifying means to control the radiation incident upon the detector and methods corresponding to the apparatus.
(1) Note. The control of the radiation to the detector includes type of radiation, the intensity of radiation, the direction of the radiation hitting the detector, the frequencies of the radiation, the radiation pattern arriving at the detector or the spacing of the detector with respect to source.
SEE OR SEARCH THIS CLASS, SUBCLASS:
266, for radiation logging apparatus having plural detectors wherein the spacing of the detectors to each other or to a source or the direction if the radiation reaching the detector is claimed.
505.1+, for radiation controlling attenuators directional elements, filters, shutters, cones, apertures and shields.
