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Drop of differential resistance results from the effect of photocurrent multiplication,which is due to the electron impact ionization when photocurrent-generation proliferates. 关键词光电倍增；
In this paper, By using R matrix method the electron impact ionization cross sections of atom Mg from near the threshold to 100eV have been calculated in the distorted Coulomb Born no exchange approximation. 使用R－矩阵方法，在扭曲库仑－玻恩非交换近似下（DCBNX）采用二态密耦图象，计算了原子镁从电离阈值附近到100eV范围的电子碰撞电离截面。
ELECTRON IMPACT IONIZATION OF ATOM Mg 原子镁的电子碰撞电离
The electron impact ionization cross sections for different energy assignment on two final-state electrons (energy differential cross sections) of heliumlike ions have been calculated by using a disrored-wave Born exchange approximation. 本文主要利用扭曲波玻恩交换近似方法(DBE)计算类氦离子在电子碰撞下,相应不同的末态电子能量分配的电离截面(能量微分截面)。
ELECTRON IMPACT IONIZATION CROSS SECTIONS FOR THE Na-LIKE IONS 类钠离子的电子碰撞电离截面
gas chromatography-mass spectrometry with electron impact ionization (GC-EI/MS) 气相色谱-电子轰击离子源质谱法
Low-energy triple-differential cross sections for electron impact ionization of hydrogen 低能电子离化氢原子的三重微分截面
MS Characteristics of Aliphatic Diacyl Adipyl Dihydrazides under Electron Impact Ionization 己二酰肼脂肪族双酰基衍生物的电子轰击电离质谱特征
Keywords gas chromatography-mass spectrometry（GC-MS）;negative chemical ionization（NCI）;electron impact ionization（EI）;acetanilide herbicides;tea-leaves; 气相色谱-质谱;负化学离子源;电子轰击离子源;酰胺类除草剂;茶叶;
electron impact ionization (EI) 电子轰击离子源
electron impact ionization 电子碰撞电离
Collisional ionization rate coefficients of electron impact ionization in a highly ionized Au plasma 激光金等离子体的电子离子碰撞电离速率系数
The study of atomic inner-shell ionization cross-sections by low-energy electron impact is significant in both theoretical researches and practical applications. 低能电子碰撞原子内壳层电离截面测量的研究在理论和实际应用方面都具有重要意义。
The He 2+ +H Impact Ionization process is investigated using a continuum distorted wave method with the eikonal initial_state(CDW_EIS) approximation. 利用初态程函近似的连续扭曲波方法研究了He2+离子与H原子的碰撞电离过程.
The cross section of inner-shell excitation followed by auto-ionization and total ionization cross section of lithium-like ions by electron impact have been calculated by using a distorted wave Born exchange approximation. 利用扭曲波玻恩交换近似,计算了类锂离子的电子碰撞激发-自电离截面和总电离截面,与紧耦合计算及实验数据比较,得到了比较令人满意的结果。
The severe impact ionization effects in polycrystalline silicon thin-film transistors are investigated and characterized. 为了研究与分析复晶矽薄膜电晶体下严重的碰撞游离效应所造成的元件特性。
In this paper, a fivefold differential cross section(FDCS) for electron impact double ionization of helium is calculated in the case of high incident energy(E 05.6 keV) and low ejection energies(E 1=E 2=10 eV). 完成了高入射能 (E0 5 .;6keV);低敲出能 (E1=E2 =10eV)情形下;电子入射双电离He原子五重微分截面 (FDCS)的理论计算。
The electron impact mass spectral fragmentations of Hainansensine analogs werereported. 本文对17个海南新碱类似物的电子轰击质谱裂解机理进行了探讨。
By using a distorted-wave Born exchange approximation, the direct ionizarion cross section of boron-like ions by electron impact have been calculated. 运用扭曲波玻恩交换近似对处于Hartree-Fock基态的类硼离子的电子碰撞直接电离截面进行了计算。
Abstract : The electron impact mass spectra of ten new C2-symmetric chiral bis(oxazoline) and bis(thiazoline) have been studied. 摘要：本文研究了十个新的C2对称的手性双恶唑啉和双噻唑啉等两个系列的电子轰击质谱。