Minsk, Belarus
New algorithm is described in the third part of the paper. It uses method of energy windows and is based on iterative scheme. Values of smoothing and thresholds are optimized in each energy window and time step during of movement of transport through control zone. Some parameters of monitor which are measured on the place of its installation or manufacturing are used as input information.
portal radiation monitor, smoothing, profile of count rate, suppression of natural radioactive background, threshold, iterative scheme
1. Categorization of Radioactive Sources. IAEA-TECDOC-1344. July, 2003, Vienna.
2. A. Stavrov, L. Kagan. Radiation monitors of new generation - New methodology of detection of nuclear and radioactive materials. Proceedings of the International conference «Measures to Prevent, Intercept and Respond to Illicit Uses of Nuclear Material and Radioactive Sources». IAEA, Vienna, 2002, IAEA-CSP-12§P.
3. A. Stavrov, A. Frymire, L. Kagan. Modern Technical and Technological Solutions of Radiation Control to Combat Illicit Transportation of Nuclear and Radioactive Materials Across Bordres. Sixth International Conference «Modern Problems of Nuclear Physics». Conference’s Book of Abstracts. Tashkent, 2006.
4. Code «SONET». S. Chigrinov, A. Kievitskaya, I. Rakhno. Proc. of the 3rd Int. Conf. on Accelerator Driven Transmutation Technologies and Applications. June 7-11, 1999, Prague, Czech Republic. R. 12.
5. A. Stavrov, E. Yamamoto. New opportunities of portal monitors with plastic scintillation detectors (ASIA-New. New Advanced Source Identification Algorithm). NATO Advanced Research Workshop. Preparedness for Nuclear and Radiological Threats. 18-20 November 2014, Los Angeles, USA.
6. A. Stavrov, E. Yamamoto. Real breakthrough in detection of radioactive sources by portal monitors with plastic detectors and New Advanced Source Identification Algorithm (ASIA-New). ANIMMA 2015 - Advancements in Nuclear Instrumentation. 20-24 April, 2015, Lisbon.
7. Illicit Trafficking Radiation Assessment Program (ITRAP+10). Test Campaign Summary Report. EC+DHS, January, 2016.
8. Technical and Functional Specifications for Border Monitoring Equipment. IAEA Nuclear Security Series #1, Vienna, 2006.