Short-range interactions in the N(4S)H+ and N+ (3P)H(2S) collisions: Cross sections and nuclear stopping power

IF 1.4 3区物理与天体物理 Q3 INSTRUMENTS & INSTRUMENTATION Nuclear Instruments & Methods in Physics Research Section B-beam Interactions With Materials and Atoms Pub Date : 2025-02-18 DOI:10.1016/j.nimb.2025.165645

M. Buchowiecki

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引用次数: 0

Abstract

The interactions between N(

^{4}

S)H

^{+}

and the N

^{+}

(

^{3}

P)H(²S) were calculated using the multireference configuration interaction (MRCI) method within the MOLPRO software. This study extends the previous research to short-range distances, reaching

1 0^{- 3}

bohr.

The results enable an analysis of the extrapolation of the short-range limits of colliding atoms and ions with the

a exp (- b r) / r

functional form. It was observed that at the shortest distances, atoms and ions interact with a Coulomb type potential. The high energy integrated cross sections (ICS), transport cross sections and nuclear stopping power (NSP) cross sections were calculated and differences from values derived from extrapolated potentials are discussed. The comparison with the SRIM code is performed.

Additionally, the long-range behavior of the N(

^{4}

S)H

^{+}

interaction from the previous study was corrected and the effect of neglecting potential energy curves in calculations of NSP cross sections was examined.

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来源期刊

Nuclear Instruments & Methods in Physics Research Section B-beam Interactions With Materials and Atoms 物理-核科学技术

CiteScore

2.80

自引率

7.70%

发文量

231

审稿时长

1.9 months

期刊介绍： Section B of Nuclear Instruments and Methods in Physics Research covers all aspects of the interaction of energetic beams with atoms, molecules and aggregate forms of matter. This includes ion beam analysis and ion beam modification of materials as well as basic data of importance for these studies. Topics of general interest include: atomic collisions in solids, particle channelling, all aspects of collision cascades, the modification of materials by energetic beams, ion implantation, irradiation - induced changes in materials, the physics and chemistry of beam interactions and the analysis of materials by all forms of energetic radiation. Modification by ion, laser and electron beams for the study of electronic materials, metals, ceramics, insulators, polymers and other important and new materials systems are included. Related studies, such as the application of ion beam analysis to biological, archaeological and geological samples as well as applications to solve problems in planetary science are also welcome. Energetic beams of interest include atomic and molecular ions, neutrons, positrons and muons, plasmas directed at surfaces, electron and photon beams, including laser treated surfaces and studies of solids by photon radiation from rotating anodes, synchrotrons, etc. In addition, the interaction between various forms of radiation and radiation-induced deposition processes are relevant.