专利汇可以提供Light water reactor primary coolant leakage monitor专利检索,专利查询,专利分析的服务。并且This invention consists of a method for the detection of leakage of a first fluid into a second fluid or into the surrounding atmospheric envelope. The first fluid is irradiated with high energy radiation to produce radionuclides which decay with the characteristic emission of angularly correlated radiations. One example of such a radionuclide is a positron emitter which decays with the emission of a positron which immediately annihilates with an electron. Two gamma photons are released from the positron-electron annihilation event and the gamma photons propagate in opposite directions. A sample of the second fluid is monitored by at least two scintillation detectors oriented to correspond with the characteristic angles of the angularly correlated radiations. The detectors are electrically connected to coincidence circuitry. Only those pairs of radiation emissions which simultaneously activate the angularly positioned scintillation detectors are registered on a counter.,下面是Light water reactor primary coolant leakage monitor专利的具体信息内容。
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