neutron pulse 中文意思是什麼
neutron pulse
解釋
中子脈沖-
Our results show that with the up to date experimental data, 13c can not sufficiently burn, the neutron number density decrease, the timescale of neutron source become long and these come into conflict with model of thermal pulse agb star
研究結果表明，在新實驗結果下， 』 3c不能充分燃燒，中子數密度降低，中子源持續的時標變長，這與熱脈沖agb星的現有模型出現矛盾。 -
( 2000 ). the neutron irradiation is assumed to derive primarily by the reaction 13c ( a, n ) i60 with a minor contribution from the marginal burning of 22ne through the channel 22ne ( a n ) 23mg in the final, high temprature phase of each flash. and we considered the influence of the various parameters such as the initial core mass, the envelope mass, the mass - loss rate, the overlap factor and the delution factor etc., and we vary their value with the pulse number
本文採用分叉s -過程反應通道，以~ （ 13 ） c （ ， n ） ~ （ 16 ） o 、 ~ （ 22 ） ne （ ， n ） ~ （ 25 ） mg為雙脈沖中子源，用最新的中子俘獲截面，利用gallino和busso等人給出的agb星三殼層核合成模型，考慮到核心質量、挖掘程度、重疊因子、稀釋因子及星風質量損失率隨脈沖數的變化，詳細計算和研究了各個金屬豐度情況下的3m 。 -
A new method of data processing used in pulse fast thermal neutron analysis technology is introduced
摘要介紹了一種應用於脈沖快熱中子分析技術中的新解譜方法。 -
But if we want to make it work normaly and make it work with electronic development to distinguish the neutron ' s inelastic scattering y spectra with the capture spectra, then we can get the element ' s inelastic scattering y spectra, we must research again the controlled circuit of the pulse neutron generator
而要使脈沖中子發生器正常工作並且能於我們自己研製的電控門配合，將中子與物質中所含元素的原子核相互作用的非彈性散射反應和俘獲反應區分丌來，從而得到能夠較好的表徵該元素的非彈性散射譜。 -
Adopting single pulse neutron exposure 22ne ( a, n ) 2dmg and the updated neutron cross section, making use of the core helium burning model of the single neutron exposure theory, we calculate the s - process nucleosynthesis in massive stars at different mettalicity and compare the results with the solar s - weak component
我們採用單脈沖中子源『 zne （ a ， n ） zsmg ，採用最新發表的中子俘獲截面，用中心氦燃燒模型計算了各金屬豐度情況下15m m叼0m 。的大質量星的s過程核合成，並將所得結果與太陽的s刁分量進行比較。 -
The let factors rlet ( rlet = 0. 05 ) of neutron response for liftld in various n + y mixed fields in the fast neutron reactor have been determined experimentally due to the existing let effects of the response for liftld to neutron absorbed dose. the experimental results show that the let factor for neutrons from thermal energy to 5mev energy is about 0. 050. so it is workable to measure the photon fluence in the pulse reactor with 7liftld
為確定liftld能否用於n 、混合場的區分測量，本文定義了let效應因子，並對liftld的let效應因子進行了實驗測定，測量結果表明： liftld對熱中子至5mev中子響應的let效應因子值約為0 . 050 ，因此，選用~ 7liftld用於脈沖堆光子注量測量是可行的。 -
The background of neutron is rejected by the technique of pulse shape discrimination
用脈沖形狀甄別技術去除中子本底。 -
By using this method, the measurement precision has reached the requirement of coal analysis, and a pulse neutron coal fast analyzer has been developed
利用此方法，已經使測量精度達到了煤質分析的要求，並且研製出脈沖中子煤質快速分析儀。 -
The y rays detecting system for physical diagnosis in nuclear exploding must be calibrated in the pulse radiation field according to field spots. so the 12mv pulse x rays accelerator and the fast neutron reactor are selected as radiation sources for calibrating
核爆物理診斷探測系統需要在脈沖輻射場中按場點光子注量進行標定，為模擬核爆產生的輻射場，選定12mv脈沖x射線加速器和快中子脈沖堆為標定用脈沖輻射源。 -
Utilizing the pulse neutron generator working with controlled circuit and time amplitude converter, the ash content in coal is measured, and we provides a safe and on line methods
通過該思路，利用脈沖中子發生器，控制電路，多道脈沖幅度分析器對煤中灰份的含量進行了測量，提出了一種實時、安全的快速檢測方法。 -
Using it, time amplitude converter and pulse neutron generator, the y spectra of 14mev pulse neutrons is measured. utilizing the time difference of several different reactions about the interaction of neutrons and nucleus, the whole spectra and the capture spectra are measured. a method that uses double gate subtracting background to gain the fast neutrons " inelastic scattering y spectra is introduced
研製了一種線性門電路，介紹了它與脈沖中子發生器、多道脈沖幅度分析器配合，進行14mev脈沖中子譜的測量，利用中子和原子核相互作用的幾種反應在時間上的差異，測量了總譜和俘獲譜，採用雙門減本底方法得到了快中子非彈性散射譜。 -
The pulse neutron generator " s delaying time are measured by the time - amplitude converter and multichannel pulse amplitude analyzer. according to these times, the linear gate circuit " s opening time can be adjusted
用它和多道脈沖幅度分析器配合測量脈沖中子發生器發射中子的滯后時間，據此調整線性門電路的開門時間。 -
The author of this paper has developed a controlled circuit of the pulse neutron generator
必須對脈沖中子發生器原來的控制電路重新研製。本論文對脈沖中子發生器控制電路進行了研究。 -
The pulse neutron generator can be used to analyze the elements in substance, because it can produce pulse neutrons which have the characteristics such as high energy, monohcrome, safe using and controlled easily
脈沖中子發生器具有產生的中子能量高、單色性好，可控、使用安全，可產生脈沖中子的特性，可用來對物質進行元素分析。
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