coincidence counting 中文意思是什麼
coincidence counting
解釋
符合計數- 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。
- counting : n. 計算。 counting house 〈英國〉＝counting room 〈美國〉賬房；會計室；事務室。 counting overseer [witness] （投票的）唱票監察人。
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The simulation can be divided into three processes sequentially : calculating the induced fission neutron rate of uranium and space distribution by mam - li neutron source, computing the total uranium fission neutron count rate and time distributions of 42 3he tubes, and calculating the neutron coincidence counting rate
第一步，以ain ? li源為中子源，計算鈾的誘發裂變中子產生二率及空間分佈；第二步，以鈾的誘發裂變中子為中子源，計算化根』 ne管的總中子計數率及時間分佈；第三步，計算中子符合計數率。 -
Neutron coincidence counting is widely used in the authentication and management of nuclear material
摘要中子符合計數在核材料認證和管理中有著廣泛的應用。 -
The numerical simulation of the coincidence counting is implemented by use of the mcnp4b package
利用mcnp4b程序實現了中子符合計數的數值模擬。 -
The basic principles of coincidence counting and the derivation of " point model " formulae of " point model " are introduced in this paper
系統闡述了中子符合計數的基本原理，對「點模型」公式作了推導。 -
This paper describes the principle of neutron yield measurement with icf activation taking example for cu 、 - coincidence counting system based on pxi, software configuration and function, the counting method of neutron yield and the calibration coefficient
摘要以銅為例介紹了中子產額活化法測量的原理、基於pxi的-符合計數系統、軟體結構和功能、中子產額的計算與實驗刻度因子標定等，最後結合實驗測試結果對系統性能進行了分析。 -
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。 -
With the outer neutron source which can only induce 235u fission, it could possibly prove the presence of heu in a warhead by counting the coincidence neutrons. this method possibly provides one of necessary attributions in identifying the real nuclear warheads
本文研究了用中子符合探測方式測量能量低於1mev的外中子源在核彈頭中誘發的裂變數，以判別模型中是否含有高濃鈾，從而作為判斷核彈頭的真偽的可行性。 -
Standard test method for nondestructive assay of plutonium in scrap and waste by passive neutron coincidence counting
無源中子復合計數法測定廢棄物中鈈的無損檢驗的標準試驗方法 -
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
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