X-ray detector with a single-stage preamplifier with intrinsic pulse shaping

摘要

Counted directly - -converting x-ray detector (1) comprising an analog front - end, whereina. the analog front - end is in a single stage,example, the a stage (2) a preamplifier (21) and further comprising a pulse-shaping unit (23, 7) comprises,c. the a stage (2) has a feedback path (7),d. the feedback path (7) a first impedance z_Feedback (5) comprises,e. a reinforcement of the input signal and a pulse shaping of the first impedance z_Feedback (5) are dependent on,f. the step (2) a path (17) between the first impedance z_Feedback (5) and a mass (15) or a supply voltage, wherein the path (17) a second impedance z_Bipolar (13), andg. the second impedance z_Bipolar (13) is adjustable or / and the path (17) by means of a switch (19) can be activated or deactivated.