نتایج جستجو برای: stopping power

تعداد نتایج: 499755  

Journal: :Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms 2014

Journal: :Acta Physica Polonica B 2021

This paper reviews our recent findings on the dynamics of transport baryon number in proton-induced reactions at CERN SPS. These are put a more general context present understanding stopping phenomena up to LHC and cosmic ray energies. The implications studies, advantages be provided by modern high quality experimental data, perspectives new measurements shortly discussed.

Journal: :Journal of environmental radioactivity 2002
D Nikezic A K M M Haque K N Yu

The present work aims to develop a semi-analytical method to calculate the absorbed dose delivered by alpha particles in a cylindrical geometry. This method will be employed to reproduce the dose conversion coefficients or absorbed fraction of alpha particles in sensitive cells of the tracheobronchial tree obtained by NRC and ICRP, respectively. The difference caused by using water stopping pow...

2015
R. Amblard W. Sauerwein

The use of high-energy proton beams enables to delivering high doses to target volumes, while sparing organs at risk compared to X-ray radiotherapy. However, the protons advantages cannot be fully exploited because the range (i.e the stopping powers) of protons in matter is not accurately known. Indeed, the proton stopping powers are obtained by an empirical conversion of X-CT Hounsfield Units ...

2012
Donald Winston

Scanning-electron-beam lithography (SEBL) is the workhorse of nanoscale lithography in part because of the high brightness of the Schottky source of electrons, but also benefiting from decades of incremental innovation and engineering of apparatus around the Schottky source. Light ions are an attractive intermediary between electrons and heavy ions in terms of exposure efficiency and resolution...

Journal: :Journal of Physics: Conference Series 2020

Journal: :Journal of the Franklin Institute 1861

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