Neutron beam current position detection instrument

The present invention relates to a neutron beam positioning techniques, particularly to a neutron beam position detector. The structure comprises a neutron scintillation screen image is converted into a visible image, is provided for the rear screen flicker visible light refracted into the camera mirror, the mirror refracted through the lens to converge a CCD camera, wherein said There are two mirrors, two mirrors are arranged in parallel and form a certain angle with the scintillation screen; scintillation screen and a first reflecting mirror disposed in the probe chamber, a second reflecting mirror disposed at the rear end of the detection chamber, and the lens CCD camera of the camera chamber; probe chamber, detection chamber, in turn connected to the camera chamber, and co-located on a mobile platform. The present invention uses a modular design, can meet the space requirements of different measurement environments, and the positioning can be significantly improved efficiency and safety.