Position sensitive neutron detector developments in the world and status of detector development activities at Frank Laboratory of Neutron Physics of JINR

A.V.Belushkin

Frank Laboratory of Neutron Physics, JINR, 141980 Dubna, Russia

Nowadays practically all leading centers engaged in neutron research of condensed matter, are equipped with highly efficient, high count rate neutron detectors based on multiwire proportional chambers (MWPC) of large area (up to 65´ 65 cm2) with coordinate resolution of 1¸ 10 mm, microstrip, scintillation and thermoluminescence detectors, and this allows them to make the most use of their neutron sources. In many centers neutron position-sensitive detectors (PSD) of new type with submillimeter coordinate resolution, large area and high count rate are being developed.

In order to keep leading positions in the field of condensed matter investigations using one of the best sources in the world - the IBR-2 reactor - it is vitally important to bring up to date the techniques of registration of neutron data. In particular, it is necessary to develop and master the manufacture of neutron position-sensitive detectors to meet modern standards.

The report will give an overview of present activities in USA, Japan and Europe as well as of the Frank Laboratory of Neutron Physics of JINR in this field.

The following topics will be covered:

Status of gas-filled PSD development at FLNP, JINR