Thesis
Real-time DSP implementation of self-calibrating pulse-shape discriminator for high purity germanium
Washington State University
Master of Science (MS), Washington State University
2006
Handle:
https://hdl.handle.net/2376/103721
Abstract
Pulse-shape discrimination (PSD) for germanium ionization spectrometers attempts to extract additional information from each event. Electronic signals, "pulses," occur when radiation interacts with the spectrometer. Normally, the total charge is the only parameter measured and indicates the amount of energy deposited. The number of interaction loci for a radiation event "interaction multiplicity" is a useful additional parameter to consider. Pacific Northwest National Laboratories has previously developed a discriminator using a 3-D parametric space that self-calibrates and is sensitive to interaction multiplicity. The algorithm was implemented in C++ and events were post-processed and classified as being high or low multiplicity. Optimizations were then made to the algorithm reducing memory requirements and increasing speed. This work dramatically increases the speed and applicability to real-time applications by implementing all the PSD and processing in real-time on a digital signal processor (DSP) embedded in the hardware.
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Details
- Title
- Real-time DSP implementation of self-calibrating pulse-shape discriminator for high purity germanium
- Creators
- Reynold Suarez
- Contributors
- Scott Hudson (Degree Supervisor)
- Awarding Institution
- Washington State University
- Academic Unit
- Electrical Engineering and Computer Science, School of
- Theses and Dissertations
- Master of Science (MS), Washington State University
- Publisher
- Washington State University; Pullman, Wash. :
- Identifiers
- 99900525024001842
- Language
- English
- Resource Type
- Thesis