Abstract
A new 9-channel Waveform Sampling Front-End (WSFE) Application Specific Integrated Circuit (ASIC) for readout of avalanche photodiodes (APD) has been developed based on two prototypes. Each channel of the chip consists of a preamplifier, a variable gain amplifier (VGA) and a fast analog to digital converter (ADC) to digitize signals from the APD. Such a scheme allows individual readouts of small pixellated APD for better spatial resolution and counting rate over conventional light sharing or charge division types while enabling depth-of-interaction (DOI) decoding. Each component has shown satisfactory performance and this chip has been used to readout GSO-APD detector to study its DOI capabilities.
| Original language | English |
|---|---|
| Pages (from-to) | 381-384 |
| Number of pages | 4 |
| Journal | Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment |
| Volume | 571 |
| Issue number | 1-2 SPEC. ISS. |
| DOIs | |
| Publication status | Published - 2007 Feb 1 |
| Externally published | Yes |
Keywords
- ASIC
- Avalanche Photodiode (APD)
- Depth-of-interaction (DOI)
- Positron Emission Tomography (PET)
ASJC Scopus subject areas
- Nuclear and High Energy Physics
- Instrumentation
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Cite this
Yeom, J., Shimazoe, K., Takahashi, H., & Murayama, H. (2007). A waveform sampling front-end ASIC for readout of GSO/APD with DOI information. Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 571(1-2 SPEC. ISS.), 381-384. https://doi.org/10.1016/j.nima.2006.10.114