Calculation of energy-loss straggling of C, Al, Si, and Cu for fast H, He, and Li ions

Energy loss straggling of 5.486 MeV alpha particles in Melinex, Al, Ni and Cu.

Energy loss straggling of 5.486 MeV alpha particles passing through Melinex, Al, Ni and Cu has been studied as a function of energy loss. The reduction in straggling towards the end of the particle range is predicted by considering the reduction of the stopping power and of the effective charge in the capture and loss of electrons at lower energies. These measurements are compared with theoreti...

Convolution approximation for the energy loss, ionization probability and straggling of fast ions

First-Principles Calculation of He–H Interaction in c-Si

We used the density functional theory and ab initio pseudopotentials to investigate He–H interaction in crystalline silicon. It was shown that both hydrogen and helium stimulate the formation of vacancy complexes. The presence of hydrogen decreases the vacancy and divacancy formation energies by about 2 eV. The presence of one or two helium atoms reduces the divacancy formation energy by 0.3 an...

Calculation of the total cross section for the ionization of H, He, Ne and Ar atoms by bare ions at the high energy range

In the present work, the total cross-section for the ionization of  H, He, Ne and Ar atoms by +He2+ ، H+ ، Li3 ions has been calculated. In these calculations, a binary encounter approximation in the form of a two-body process between projectile ions and atomic electrons at the high energy range has been implemented. In order to enter the nuclear role of the target atom, the atomic electron vel...

application and construction of carbon paste modified electrodes developed for determination of metal ions in some real samples

ساخت الکترودهاِی اصلاح شده ِیکِی از چالشهاِی همِیشگِی در دانش شیمِی بوِیژه شیمِی تجزیه مِی باشد ،که با در نظر گرفتن سادگِی ساخت، کاربردی بودن و ارزان بودن روش مِی توان به باارزش بودن چنِین سنسورهاِی پِی برد.آنچه که در ادامه آورده شده به ساخت و کاربرد الکترودهاِی اصلاح شده با استفاده از نانو ذرات در اندازه گِیرِی ولتامترِی آهن وکادمِیم اشاره دارد. کار اول اختصاص دارد به ساخت الکترود خمِیر کربن اصلاح شده با لِیگاند داِ...