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To deal with the shortage of 3He gas, which is widely used in thermal neutron detection, the boron coated straw-tubes have been developing to replace the 3He proportional counters. We present in this paper the realization process of a straw tube with 1 m long and the diameter is 4 mm, with 1 µm B4C layer coated on the inner surface to convert neutrons to charged particles.[1] The parameters, high...
According to the heat-mass transfer specialty existed in an evaporative condenser, adopted the method of equivalent heat transfer and logarithmic average enthalpy difference, the design calculation method adapted computer is found, it is convenient to thermodynamic calculation and design choice of an evaporative condenser, and is useful to optimize the design of an evaporative condenser.
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