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介绍了一种最新研制成功的新型密封中子管。这种中子管带有α粒子探测器，通过探测到的α粒子能给出与该α粒子伴生的１４ＭｅＶ中子产生时刻和飞出方向的指示信号。
A newly developed sealed neutron tube is introduced. This neutron tube is provided with an alpha particle detector that gives an indication of the 14 MeV neutron production time and direction of flight associated with the alpha particle through the detected alpha particles.