Izmerenie secheniya deleniya yader 238U neytronami s energiyami 0.3-500 MeB

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Abstract

Представлены результаты измерения зависимости сечения деления ядер 238U нейтронами от энергии нейтронов в диапазоне от 0.3 до 500 МэВ, выполненного на времяпролетном спектрометре нейтронного комплекса ГНЕЙС в НИЦ “Курчатовский институт” - ПИЯФ. Осколки деления регистрировались при помощи позиционно-чувствительных многопроволочных пропорциональных счетчиков низкого давления. Сечение деления 238U(n, f ) измерялось относительно сечения деления 235U(n, f ), являющегося принятым международным стандартом. Приведены также данные по энергетической зависимости угловой анизотропии выхода осколков деления ядер 238U нейтронами. Проведено сравнение полученных данных с результатами экспериментальных работ, выполненных ранее с использованием как аналогичных, так и значительно отличающихся методик.

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