Photonic Radiation Detection Device, And Methods For Dimensioning And Operating Such Device

摘要

A photonic radiation detection device includes a collimator, a detector, and localization means for determining information relative to the localization of a photon interaction with the detector material. In at least one previously selected acquisition configuration, a degree of pixelation in the detection plane is greater than 1 and a collimator-detector distance (C) is greater than one tenth of the septal height (h) of the collimator where the septal height is a maximum dimension of the collimator in a direction orthogonal to the frontal detection plane. In one instance, the septal wall thickness (e) is one of about 0.1 or less than about 0.1 of the channel width (w). In another instance, the collimator-detector distance is greater than h/(2(w/e−1)). A dimensioning method includes, for at least one given spatial frequency, calculating and comparing merit indicator values for different acquisition configurations of a structural model of the detection device.

主权项

1. A detection device for photonic radiation comprising:
a collimator comprising a plurality of collimator channels having a channel width (w) and separated by septal walls having a thickness (e); a detector comprising a detector material and having a frontal detection plane on a collimator side of the detector; and localization means for determining information relative to the localization, in lateral directions parallel to the frontal detection plane, of a photon interaction with the detector material, the localization means in the frontal detection plane, defining a partitioning of the frontal detection plane in physical or virtual pixels with transversal dimensions smaller than those of the collimator channels, and associating one of the pixels with each photon interaction, wherein, at least in one previously selected acquisition configuration, a degree of pixelation in the detection plane is greater than 1 and a collimator-detector distance (C) between the collimator and the frontal detection plane, is greater than one tenth of a septal height (h) of the collimator, the septal height being a maximum dimension of the collimator in a direction orthogonal to the frontal detection plane, and wherein the septal wall thickness (e) is one of about 0.1 or less than about 0.1 of the channel width (w).