| 摘要 |
A diagnostic imaging device includes a signal processing circuit (22) processes signals from a detector array (16) which detects radiation from an imaging region (20). The hit signals are indicative of a corresponding detector (18) being hit by a radiation photon. The signal processing circuit (22) includes a plurality of input channels (321, 322, 323, 324), each input channel receiving hit signals from a corresponding detector element (18) such that each input channel (321, 322, 323, 324) corresponds to a location at which each hit signal is received. A plurality of integrators (42) integrate signals from the input channels (32) to determine an energy value associated with each radiation hit. A plurality of analog-to-digital converters (441, 442, 443, 444) convert the integrated energy value into a digital energy value. A plurality of time to digital converters (40) receive the hit signals and generate a digital time stamp. OR logic (36, 38) relays signal hits from a subset of the plurality of input channels (32) to one of the ADC (44) and one of the time to digital converters (40), the subset including more than one input channel such that more than one input channel is connected with each ADC (44) and/or each time-to-digital converter (40). A register and read out (25) reads out the locations, the digital energy values, and the digital time stamps for hit signals. |
| 主权项 |
1. A diagnostic imaging device comprising:
a signal processing circuit which processes hit signals from a detector array which detects radiation from an imaging region, the hit signals being indicative of a corresponding detector being hit by a radiation photon, the signal processing circuit including:
a plurality of input channels, each input channel receiving hit signals from a corresponding detector element such that each input channel corresponds to a location at which each hit signal is received;a plurality of integrators for integrating signals from the input channels to determine an energy value associated with each radiation hit;a plurality of analog-to-digital converters (ADCs) for converting the integrated energy value into a digital energy value;a plurality of time-to-digital converters (TDCs) that receive the hit signals and generate digital time stamps;OR logic that relays signal hits from a subset of the plurality of input channels to one of the ADCs and one of the TDCs, and the subset includes more than one input channel, the more than one input channels of the subset are non-adjacent input channels and the more than one input channels are connected with one of the ADCs and/or one of the TDCs; anda register and read out which reads out the location, the digital energy value, and the digital time stamp for each hit signal. |
