Back to Search
Start Over
Spectral resolution evaluation by MCNP simulation for airborne alpha detection system with a collimator
- Source :
- Nuclear Engineering and Technology, Vol 53, Iss 4, Pp 1311-1317 (2021)
- Publication Year :
- 2021
- Publisher :
- Elsevier BV, 2021.
-
Abstract
- In this study, an airborne alpha detection system, which consists of a passivated implanted planar silicon (PIPS) detector and an air filter, was developed. A collimator applied to the alpha detection system showed an enhancement in resolution and a degradation in detection efficiency. The resolution and detection efficiency were compared and analyzed to evaluate the performance of the collimator. Thus, the resolution was found to be more important than the efficiency as a determining factor of the detection system performance, from the viewpoint of radionuclide identification. The performance was evaluated on three properties of the collimator: hole shape, hole length, and the ratio between the hole and frame pitches. From the hole shape performance evaluation, a hexagonal collimator showed the highest resolution. Further, the collimator with a hole pitch of 14 mm was found to have the highest resolution while that with a frame pitch of 4–6 mm (i.e., 1.2–1.4 times longer than the hole pitch) showed the highest resolution.
- Subjects :
- Materials science
Spectral resolution
genetic structures
Silicon
020209 energy
Monte Carlo method
Alpha detection
chemistry.chemical_element
02 engineering and technology
Detection efficiency
030218 nuclear medicine & medical imaging
law.invention
03 medical and health sciences
0302 clinical medicine
Optics
Planar
law
0202 electrical engineering, electronic engineering, information engineering
Monte Carlo simulation
Air filter
business.industry
Detector
Resolution (electron density)
Collimator
lcsh:TK9001-9401
humanities
Nuclear Energy and Engineering
chemistry
lcsh:Nuclear engineering. Atomic power
business
Subjects
Details
- ISSN :
- 17385733
- Volume :
- 53
- Database :
- OpenAIRE
- Journal :
- Nuclear Engineering and Technology
- Accession number :
- edsair.doi.dedup.....ded8ee0be19a7992f0c0c2c707e6b134