Reliability improvement for anisotropic biased compensated α/β contamination meter
| Autor: | Vincent Schoepff, T. Montagu, N. Menaa, N. Blanc de Lanaute, Romain Coulon, A. Gallozzi Ulmann |
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| Přispěvatelé: | Laboratoire Capteurs et Architectures Electroniques (LCAE), Département Métrologie Instrumentation & Information (DM2I), Laboratoire d'Intégration des Systèmes et des Technologies (LIST (CEA)), Direction de Recherche Technologique (CEA) (DRT (CEA)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Direction de Recherche Technologique (CEA) (DRT (CEA)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Laboratoire d'Intégration des Systèmes et des Technologies (LIST (CEA)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Laboratoire Modélisation et Simulation de Systèmes (LM2S), CANBERRA France, Laboratoire d'Intégration des Systèmes et des Technologies (LIST), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Laboratoire d'Intégration des Systèmes et des Technologies (LIST) |
| Jazyk: | angličtina |
| Rok vydání: | 2016 |
| Předmět: |
Nuclear and High Energy Physics
Contamination meter-compensation Acoustics COUNTER Radiation [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex] Poisson distribution 030218 nuclear medicine & medical imaging 03 medical and health sciences symbols.namesake 0302 clinical medicine [INFO.INFO-TS]Computer Science [cs]/Signal and Image Processing [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det] Hypothesis test Instrumentation Statistical hypothesis testing Physics Guard (information security) SPECTROSCOPY Noise (signal processing) Filter System of measurement Detector Subtraction PULSE-SHAPE DISCRIMINATION Regression Algorithm CRYSTAL PHOSWICH DETECTOR 13. Climate action 030220 oncology & carcinogenesis symbols |
| Zdroj: | Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 2016, 837, pp.44-49. ⟨10.1016/j.nima.2016.08.064⟩ Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Elsevier, 2016, 837, pp.44-49. ⟨10.1016/j.nima.2016.08.064⟩ |
| ISSN: | 0168-9002 1872-9576 |
| DOI: | 10.1016/j.nima.2016.08.064⟩ |
| Popis: | International audience; Nuclear instruments such as alpha/beta contamination meter are frequently used in a compensated mode where the contribution of gamma radiation background is compensated by a guard detector. The signal of interest is then the subtraction of counting from both channels. In practice, the noise signal measured by the guard detector is not strictly equal to the noise contribution into the first detector due to anisotropic biases.The random error (under Poisson assumption) is taken into account to build a hypothesis test. The system is also designed to minimize the systematic error but in some cases, this bias could not be completely removed. The measurement system then shows different behavior when the surrounding environment changes exhibiting inopportune false alarms.A method allowing the false alarms to be suppressed is addressed in this study for compensated measurement. An improvement in terms of reliability has been proven. |
| Databáze: | OpenAIRE |
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