source fission 中文意思是什麼
source fission
解釋
源裂變-
At the first start up of a new reactor, primary source rods consisted of californium - 252 are inserted into the reactor to produce sufficient neutrons to initiate the first fission
反應堆在首次啟動時，會放入含有- 252 cf - 252的一次中子源棒，以提供足夠數量的中子進行初次核裂變。 -
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。 -
The error source in measuring neutron fluence rate is gived. the efficiency of u - fission chamber is studied. the effect factors to detector are analyzed and experimentally studied
開展了鈾裂變室探測器效率的研究，對影響探測器對期望中子或非期望中子探測的各種因素進行了分析和實驗研究。 -
The target studied in this paper is one of the most important components in the ads. coupling the two innovative fields in the nuclear scientific and technological circles that are accelerator and sub - critical reactor. the physical function of this part is be as the neutron source, accepting the medium or high energy proton, breeding spallation reaction, arising the self - sustaining nuclear fission and generating the power
本文所研究的靶件作為該系統最重要的關鍵部件之一，耦合核科技界的兩大創新領域-高功率質子加速器和次臨界堆，該靶件的物理作用主要是接受中、高能質子，發生散裂反應，產生中子源，引發持續鏈式反應，產生能量。 -
It is not, however, the source of a modern bomb ' s main explosive power, for just as the chemical explosives trigger a fission explosion by compressing the plutonium, that fission explosion is used to ignite the third stage, a still - larger fusion explosion, by compressing and heating the main part of the bomb
然而，該連鎖反應並不是核彈主要爆炸能的源頭，因為它只是化學爆炸物通過壓縮鈈而引發分裂性爆炸，並將進一布引發核彈爆炸的第三個階段，即通過壓縮並加熱核彈主體部位而引起的一種更大范圍的分裂性爆炸。 -
The department ' s programs are at the forefront of nuclear science and technology leading to improved performance of fission - powered reactors, the technological applications of nuclear and radiation phenomena in biomedical, industrial, and environmental fields, and the development of nuclear fusion as an energy source
本系的課程走在核子科學和科技的最尖端，目的在提高核裂變反應爐的效能、核子和輻射在生物醫學、工業和環境領域的應用，以及研發核融合成為穩定的能源。 -
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。 -
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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