Abstract
A 16 channel integrated circuit charge sensitive preamplifier (CSA) has been developed for an X-ray detector module that uses a 16 linear array of Poly CZT. The polycrystalline CdZnTe:Cl thick films used in this experiment have 1.2×1010Ωcm in resistivity, 150um in thickness. The main performances of the CSA for this Poly CZT are the following: the input equivalent noise charge is 300 e- rms at peaking time 200ns, the highest gain is 10mV/fC, the peaking time is adjustable between 50ns and 300us by external passive components. The noise simulation yielded ENC values of 50e- and 250e- for thermal and 1/f noise, respectively. The design was fabricated in standard 0.35um CMOS technology and the circuit occupies an area of 4× 4mm2 and dissipates 2mW per channel from a 3.3V single power supply.
| Original language | English |
|---|---|
| Pages (from-to) | 1373-1377 |
| Number of pages | 5 |
| Journal | IEEE Nuclear Science Symposium Conference Record |
| Volume | 3 |
| Publication status | Published - 2004 |
| Event | 2004 Nuclear Science Symposium, Medical Imaging Conference, Symposium on Nuclear Power Systems and the 14th International Workshop on Room Temperature Semiconductor X- and Gamma- Ray Detectors - Rome, Italy Duration: 2004 Oct 16 → 2004 Oct 22 |
ASJC Scopus subject areas
- Radiation
- Nuclear and High Energy Physics
- Radiology Nuclear Medicine and imaging