Direct conversion X-ray detector with radiation protection for electronics

摘要

The present invention relates to an X-ray detector having an X-ray sensor (first X-ray sensor) converting X-radiation directly into electric charge carriers, having signal evaluation electronics electrically connected to the X-ray sensor and preferably formed as integrated circuit(s), having an X-ray absorber formed for protecting the signal evaluation electronics, and having a sensor carrier (first sensor carrier) formed and arranged for positioning the X-ray sensor relative to the X-ray absorber, wherein, viewed in the direction of incidence of the X-radiation, both the signal evaluation electronics are arranged behind the X-ray absorber and in the X-radiation shadow thereof and the X-ray sensor is admittedly likewise positioned by means of the sensor carrier preferably arranged between the X-ray absorber and the signal evaluation electronics at least sectionally behind the X-ray absorber, but outside the X-radiation shadow thereof.

主权项

1. An X-ray detector comprising:
a first X-ray sensor directly converting X-radiation (R) into electric charge carriers; signal evaluation electronics electrically connected to the first X-ray sensor and including an integrated circuit; an X-ray absorber, configured to protect the signal evaluation electronics; and a first sensor carrier configured and arranged for positioning the first X-ray sensor relative to the X-ray absorber, wherein, viewed in a direction of incidence (E) of the X-radiation, the signal evaluation electronics and the first sensor carrier are arranged behind the X-ray absorber and in an X-radiation shadow (S) of the X-ray absorber and wherein the first X-ray sensor is situated such that the first sensor carrier is arranged between the X-ray absorber and the signal evaluation electronics at least sectionally behind the X-ray absorber, but the first X-ray sensor is outside the X-radiation shadow (S) of the X-ray absorber; and wherein the X-ray detector comprises a further second X-ray sensor that converts the X-radiation (R) directly into electric charge carriers and that is electrically connected to the signal evaluation electronics; and a further second sensor carrier configured and arranged for positioning the second X-ray sensor relative to the X-ray absorber; wherein, viewed in the direction of incidence (E) of the X-radiation (R), the second X-ray sensor is arranged behind the first X-ray sensor and is situated such that the second sensor carrier is arranged between the first sensor carrier and the signal evaluation electronics behind the X-ray absorber, but the second X-ray sensor is outside the X-radiation shadow (S) of the X-ray absorber.