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Furnace or chemical reactor wall thickness measurement appts. - has fast neutron generator surrounded by reflector and scattering layers and includes thermal neutron counters
Furnace or chemical reactor wall thickness measurement appts. - has fast neutron generator surrounded by reflector and scattering layers and includes thermal neutron counters
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机译:炉或化学反应器壁厚测量装置。 -具有被反射层和散射层包围的快速中子发生器,并包括热中子计数器
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摘要
The appts. measures the thickness of furnace or chemical reactor walls using neutron beams. There is a source of fast neutrons (7) surrounded by a reflector (15) for fast neutrons, and placed against the measuring point (2) on the furnace wall. The furnace wall (3) may consist of bricks surrounded by a metallic casing (4). The neutron source (7) and detector are surrounded by a gas tight housing (5). The detector (6) consists of two pairs of counters (9,11) separated by a moderator or neutron braking layer (13). They are connected (14) to a measuring circuit contg. an amplifier (19) and a counter (21). The source (7) and reflector (15) are surrounded by pieces made of neutron scattering material. The detectors (9,11) are designed to detect thermal neutrons.
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