Equipment for measuring radiation dose deep in human tissue

摘要

A unit for measuring three-dimensional penetration and local dosage distribution due to radiation includes a particulate radiation detector (202). This contains a scintillator with absorption characteristics corresponding to those of biological tissue. This emits light when irradiated (201). An image receiver (204) picks up the optical image, intercepting light emitted from the detector. The measuring instrument (205) processes the receiver signal, to measure radiation dose distribution. This is seen as emitted light in the two-dimensional plane corresponding to the surface of the detector. The novel feature is the movement of detector and receiver as a unit, by a drive (206). Thus the three-dimensional distribution of radiation dose is illustrated and determined from scintillation, within the irradiated volume. Also claimed is a detector for particulate radiation, comprising a tissue-like main block reflecting light, which has holes containing tissue-like fluid scintillator fillings and is covered by a transparent, tissue-like material.