FIELD: physics.
SUBSTANCE: invention relates to technical physics, namely to detectors for detecting thermal neutrons. Essence of the invention lies in the fact that a gas-filled detector for measuring small-angle scattering of thermal neutrons has cathodes made in the form of a system of grounded concentric rings of different diameters, wherein each ring is made of flexible resilient material, outer and inner sides of each ring are coated with metal-coated layer; inner layer of the ring is divided by electrically insulating layers into sectors which act as separate cathodes mutually oriented at geometrical centre of detector; grounding is performed through outer ring layer, which serves as additional cathode; for the anode thread holder in the zone of the electrically insulating layer of each ring holes are made; each anode and each sector cathode are individually connected to analogue electronics, forming two-dimensional detectors; analogue electronics is located inside the housing volume.
EFFECT: technical result is high accuracy of measuring location of inhomogeneities in analysed sample.
7 cl, 3 dwg
| Title | Year | Author | Number |
|---|---|---|---|
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|
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| MAGNETRON | 2011 |
|
RU2572347C2 |
| X-RAY TUBE | 0 |
|
SU809430A1 |
