Electron-impact ionization cross sections for excited states of the rare gases (Ne, Ar, Kr, Xe), cadmium, and mercury

Calculated Electron Impact Ionization Cross Sections of Excited Ne Atoms Using the DM Formalism

“…The DM cross section lies consistently slightly above the experimental data, but the discrepancy is within the quoted roughly 40% error margin of the measured data. Hyman [29] using a symmetric binary encounter model in conjunction with a semi-empirically determined momentum distribution function for the bound excited electron calculated electron impact ionization cross sections for the lowest excited states of the rare gases, cadmium, and mercury. His results in Ne are in good agreement with our data for the 3s level, but are smaller than our data for the 3p level (shown below in fig.…”

“…Much less effort has been devoted to the ionization of atoms in excited states. Ionization cross sections have been measured for the metastable rare gas atoms He [4,5], Ne [6,7], and Ar [6] and several calculations using different approximations have been carried out for these targets [8,9,10] including an earlier calculation based on the semi-classical Deutsch-Märk (DM) formalism [11].…”

Theoretical potential energy surfaces for excited mercury trimers

“…Retaining only the lowest-order term of the overlap integrals Q z h/ i 6p z j/ j 6s i and S h/ i 6s j/ j 6s i for large r ij , we arrive at an expression, [22] for / iðjÞ 6s and those by Hyman [23] for / iðjÞ 6p z . Eq.…”

Влияние Температуры На Ионизационный Коэффициент И Напряжение Зажигания Таунсендовского Разряда В Смеси Аргона С Парами Ртути

“…Для моделирования движения электронов в настоящей работе применяется методи-ка, основанная на использовании метода Монте-Кар-ло [20][21][22]. Учитывается упругое рассеяние электронов на атомах компонент смеси, а также возбуждение и ионизация ими невозбужденных и метастабильных ато-мов с использованием зависимостей сечений этих про-цессов от скорости электрона, приведенных в [23][24][25]. В процессе расчета траекторий первичных и вторичных электронов (эмитируемых с катода и образующихся в разрядном промежутке при ионизации атомов компо-нент смеси) формируется функция их распределения по…”