Non-iterative pulse tail extrapolation algorithms for correcting nuclear pulse pile-up
Radiation detection systems working at high count rates suffer from the overlapping of their output electric pulses, known as pulse pile-up phenomenon, resulting in spectrum distortion and degradation of the energy resolution. Pulse tail extrapolation is a pile-up correction method which tries to re...
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| Format: | Article |
| Language: | English |
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Elsevier
2023-12-01
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| Series: | Nuclear Engineering and Technology |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S173857332300373X |
| _version_ | 1797448133642289152 |
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| author | Mohammad-Reza Mohammadian-Behbahani |
| author_facet | Mohammad-Reza Mohammadian-Behbahani |
| author_sort | Mohammad-Reza Mohammadian-Behbahani |
| collection | DOAJ |
| description | Radiation detection systems working at high count rates suffer from the overlapping of their output electric pulses, known as pulse pile-up phenomenon, resulting in spectrum distortion and degradation of the energy resolution. Pulse tail extrapolation is a pile-up correction method which tries to restore the shifted baseline of a piled-up pulse by extrapolating the overlapped part of its preceding pulse. This needs a mathematical model which is almost always nonlinear, fitted usually by a nonlinear least squares (NLS) technique. NLS is an iterative, potentially time-consuming method.The main idea of the present study is to replace the NLS technique by an integration-based non-iterative method (NIM) for pulse tail extrapolation by an exponential model. The idea of linear extrapolation, as another non-iterative method, is also investigated. Analysis of experimental data of a NaI(Tl) radiation detector shows that the proposed non-iterative method is able to provide a corrected spectrum quite similar with the NLS method, with a dramatically reduced computation time and complexity of the algorithm. The linear extrapolation approach suffers from a poor energy resolution and throughput rate in comparison with NIM and NLS techniques, but provides the shortest computation time. |
| first_indexed | 2024-03-09T14:06:04Z |
| format | Article |
| id | doaj.art-99f0570eaf894970bd1de848748db706 |
| institution | Directory Open Access Journal |
| issn | 1738-5733 |
| language | English |
| last_indexed | 2024-03-09T14:06:04Z |
| publishDate | 2023-12-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Nuclear Engineering and Technology |
| spelling | doaj.art-99f0570eaf894970bd1de848748db7062023-11-30T05:06:19ZengElsevierNuclear Engineering and Technology1738-57332023-12-01551243504356Non-iterative pulse tail extrapolation algorithms for correcting nuclear pulse pile-upMohammad-Reza Mohammadian-Behbahani0School of Mechanical Engineering, Shiraz University, Shiraz, IranRadiation detection systems working at high count rates suffer from the overlapping of their output electric pulses, known as pulse pile-up phenomenon, resulting in spectrum distortion and degradation of the energy resolution. Pulse tail extrapolation is a pile-up correction method which tries to restore the shifted baseline of a piled-up pulse by extrapolating the overlapped part of its preceding pulse. This needs a mathematical model which is almost always nonlinear, fitted usually by a nonlinear least squares (NLS) technique. NLS is an iterative, potentially time-consuming method.The main idea of the present study is to replace the NLS technique by an integration-based non-iterative method (NIM) for pulse tail extrapolation by an exponential model. The idea of linear extrapolation, as another non-iterative method, is also investigated. Analysis of experimental data of a NaI(Tl) radiation detector shows that the proposed non-iterative method is able to provide a corrected spectrum quite similar with the NLS method, with a dramatically reduced computation time and complexity of the algorithm. The linear extrapolation approach suffers from a poor energy resolution and throughput rate in comparison with NIM and NLS techniques, but provides the shortest computation time.http://www.sciencedirect.com/science/article/pii/S173857332300373XNon-iterative exponential fittingPile-up correctionPulse tail extrapolationRadiation detectorSpectroscopy |
| spellingShingle | Mohammad-Reza Mohammadian-Behbahani Non-iterative pulse tail extrapolation algorithms for correcting nuclear pulse pile-up Nuclear Engineering and Technology Non-iterative exponential fitting Pile-up correction Pulse tail extrapolation Radiation detector Spectroscopy |
| title | Non-iterative pulse tail extrapolation algorithms for correcting nuclear pulse pile-up |
| title_full | Non-iterative pulse tail extrapolation algorithms for correcting nuclear pulse pile-up |
| title_fullStr | Non-iterative pulse tail extrapolation algorithms for correcting nuclear pulse pile-up |
| title_full_unstemmed | Non-iterative pulse tail extrapolation algorithms for correcting nuclear pulse pile-up |
| title_short | Non-iterative pulse tail extrapolation algorithms for correcting nuclear pulse pile-up |
| title_sort | non iterative pulse tail extrapolation algorithms for correcting nuclear pulse pile up |
| topic | Non-iterative exponential fitting Pile-up correction Pulse tail extrapolation Radiation detector Spectroscopy |
| url | http://www.sciencedirect.com/science/article/pii/S173857332300373X |
| work_keys_str_mv | AT mohammadrezamohammadianbehbahani noniterativepulsetailextrapolationalgorithmsforcorrectingnuclearpulsepileup |