On the ratio distribution of energy windowing algorithms for radiation portal monitors
| Autor: | D. Sas, T. Grisa |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Radiation
Computer science 010403 inorganic & nuclear chemistry 01 natural sciences Radiation Portal Monitor 030218 nuclear medicine & medical imaging 0104 chemical sciences Ratio distribution 03 medical and health sciences 0302 clinical medicine Transformation (function) Electromagnetic shielding Shadow Radiant intensity Random variable Algorithm Energy (signal processing) |
| Zdroj: | Applied Radiation and Isotopes. 132:195-199 |
| ISSN: | 0969-8043 |
| DOI: | 10.1016/j.apradiso.2017.12.005 |
| Popis: | This paper introduces a windowing algorithm for radiation portal monitors based on a transformation of random variables to calculate the ratio between the radiation intensity in two energy windows. Procedures to evaluate critical limits and establish detection limits are described. Simulations and experimental data illustrate a good agreement between derived and observed ratio distributions. The algorithm was compared with commonly-used algorithms. The results illustrate proper evaluation of critical and detection limits even in the case of shadow shielding by vehicles entering a radiation portal monitor. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect