Veksler and Baldin Laboratory of High Energy Physics
Seminar “Innovation and Applied Research”
Date and Time: Thursday, 9 April 2026, at 11:00 AM
Venue: bld. 215, room 347, Veksler and Baldin Laboratory of High Energy Physics, online on Volna
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Seminar topic: “Applications of the tagged neutron method for remote substance analysis in production”
Speaker: Yuri Rogov
Authors: E. Andreev, I. Komarov, E. Razinkov, Yu. Rogov, M. Sapozhnikov
Abstract:
Метод меченых нейтронов дает возможность проводить элементный анализ вещества дистанционно, без отбора проб. Эта техника была использована для создания анализаторов элементного состава вещества, движущегося на конвейере, которые выдают данные о составе вещества в режиме реального времени.
Обсуждаются результаты эксплуатации конвейерных анализаторов ММН в металлургическом производстве.
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Seminar topic: “Theoretical and experimental investigation on the optimisation of accelerator driven subcritical reactors”
Speaker: Tran Ngoc Toan
Abstract:
A new approach for accelerator driven subcritical reactors (ADSR), focused on their use as efficient source of energy was developed. Active zones with larger dimensions offer the possibility to obtain the needed value of the effective multiplication factor keff with lower enrichment, allowing longer cycle and deeper actinides burning (15-20%) during the cycle. The working value of keff maintained in the range 0.985-0.988 with the help of control rods ensures a safe exploitation, avoids reaching the criticality during unprotected transients or core damage, and is sufficiently high to realize energy gain above 15. One of the most interesting finding concerns the possibility to use light ion beams as 7Li or 9Be with energy 0.25-0.3 GeV/n instead of 1-1.5 GeV protons.
The analysis of possible experiments meant to compare the energy efficiency of different beams showed that the most reliable results are obtained by measuring the fission distribution inside a large target. A suitable lead target LETASUR is presented. The study about the radiation exposure demonstrates that the shielding design of the experimental room SHINE allows safely using beam intensities of 109p/s. Plans for further research activity are presented.