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Performance of PIN photodiode in microdosimetry
1Electrical Engineering Department, College of Engineering, King Saud University, Riyadh, Saudia Arabia.
Health Physics
|May 1, 1994
Summary
A PIN silicon photodiode was evaluated as a microdosimetric detector. Its performance was compared to a standard tissue-equivalent proportional counter using gamma and neutron sources.
Area of Science:
- Medical Physics
- Radiation Detection
Background:
- Microdosimetry is crucial for understanding radiation effects.
- Tissue-equivalent proportional counters are standard microdosimetric detectors.
- Exploring alternative detectors like PIN photodiodes is important for advancements.
Purpose of the Study:
- To investigate the efficacy of a PIN silicon photodiode as a microdosimetric detector.
- To compare the performance of a PIN photodiode with a traditional tissue-equivalent proportional counter.
Main Methods:
- Microdosimetric spectra were measured using a 137Cs gamma source.
- Microdosimetric spectra were measured using an americium-beryllium neutron source.
- Data from the PIN photodiode was compared against a 1-micron simulated diameter tissue-equivalent proportional counter.
Main Results:
- The study determined microdosimetric spectra for both radiation sources using the PIN photodiode.
- The obtained spectra were directly compared with those from the tissue-equivalent proportional counter.
Conclusions:
- The PIN silicon photodiode shows potential as a microdosimetric detector.
- Further research is needed to fully validate its capabilities against established methods.