coincidence detection 中文意思是什麼
coincidence detection
解釋
重合檢測- coincidence : n. 一致（性），符合；巧合，暗合；【數學】重合，疊合（素）；同時發生[存在]。 a mere coincidence 偶合，巧合。
- detection : n. 1. 探知；發現，發覺；敗露。2. 【化學】檢定，檢查；【電訊】檢波。
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Acd annihilation coincidence detection
湮沒符合探測 -
The results show that coincidence detection method has obvious benefit in detecting nuclear warheads. for the same type warhead, the coincidence counts rates of the model of warhead of heu pit is 10 times as big as that of fake warhead of natural uranium pit. if we know the nuclear warheads configuration by other methods, the method of coincidence neutron detection could be used to distinguis h the fake nuclear warheads from the reals
計算表明用探測符合中子的方法探測核彈頭對區分真假核彈頭有明顯的優點，對于同一核彈頭模型，裂變彈芯是高濃鈾和用天然鈾替代高濃鈾時，符合中子計數相差1個量級，如通過其他途徑了解核彈頭的大致結構，符合測量的方法就可以有較高的置信度分辨真假核彈頭。 -
The results showed that the total coincidence rate between digfa and sat and the coincidence on positive rate of detection were 99. 88 % ( 4003 / 4008 ) and 94. 25 % ( 82 / 87 ), respectively, and the sensitivity of digfa appeared to be higher in population with brucellosis and in high - titered serum samples
方法用已建立的布病滴金免疫測定技術檢測不同職業和不同感染類型人員的布病抗體，並與布病試管凝集試驗作平行檢測。 -
If using the natural uranium to replace the heu pit in warhead, the delayed neutron counting rate would be about 3 times lower. the coincidence neutron detection is proposed to be used in nuclear warhead detection
計算表明用天然鈾替代高濃鈾作的假彈頭，它們的出殼緩發中子數相差約3倍，需在一定條件下，才可對真偽核彈頭做出判斷。 -
Simulation of the - coincidence detection efficiency in activation measurment for neutron yield
符合探測效率的模擬計算 -
A new method of absolute calibration of photodetector sensitivity based on spontaneous parametric down - conversion ( spdc ) biphoton field is described. the process of spdc is studied theoretically. the single photon detection probability and two - photon coincidence probability are derived and the calibration principle for photodetectors is explained. an experimental system has been set up. the sensitivity of a photon - counting photomultiplier tube was measured, and the results were compared with those obtained using conventional method
討論了一種基於自發參量下轉換雙光子場絕對校準光電探測器靈敏度的新方法，著重推導了對自發參量下轉換過程中產生的單光子的探測概率和雙光子的符合速率，從而闡明了絕對測量光電探測器量子效率的原理.基於這一方法對光子計數型光電倍增管的響應靈敏度進行了測量，並將實驗結果與常規方法測得的結果進行了比較 -
The method of numeral simulating the coincidence neutron detection is proposed with combining the neutron transportation and probabilistic calculation. the method is introduced and used to simulate the nuclear warhead induced fission by source neutrons with energy below 1 mev
推導並提出用中子輸運計算與概率方法結合計算符合中子計數，對能量低於1mev的外源中子照射核彈頭誘發裂變的符合中子測量作了數值模擬。
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