Neutron detector

The utility model relates to a neutron detector which comprises a probe and a probe protection device. The probe protection device comprises a shell and an elastic buffer layer arranged in the shell; and the probe is assembled in the elastic buffer layer. The elastic buffer layer is arranged in the shell, and the probe is arranged in the elastic buffer layer, so that when the probe is placed in a nuclear reactor, the elastic buffer layer can play a role in buffering collision on the probe, the impact force on the probe in the mounting process is reduced, and the probe is prevented from being damaged; the probe can be safely and stably placed in the nuclear reactor, and the detection performance of the probe is guaranteed. The probe protection device is simple in structure and convenient to process and assemble, and the production cost is reduced. 本实用新型涉及一种中子探测器，包括探头和探头保护装置；探头保护装置包括外壳和设置在外壳内的弹性缓冲层；探头装配在弹性缓冲层内。在外壳内设置弹性缓冲层，并将探头设置在弹性缓冲层内，这样设计，将探头放入核反应堆内时，弹性缓冲层能够对探头受到的碰撞起到缓冲作用，减少探头在安装过程中受到的冲击力，防止探头损伤，有利于保证探头安全平稳地放