@article{oai:repo.qst.go.jp:00043988, author = {Ohsawa, Daisuke and Satou, Yukio and Okada, Yuki and Shevelko, Viatcheslava and Soga, Fuminori and 大澤 大輔 and 佐藤 幸夫 and 岡田 裕樹 and 曽我 文宣}, issue = {6}, journal = {Physical Review A}, month = {Oct}, note = {In this paper, we discuss absolute doubly differential cross sections (DDCS) for the energy and angular distributions (20˚~160˚) of secondary electrons produced in the collisions of 6.0 and 10.0 MeV/u He2+ ions with water vapor. Details of our experiments were reported in our previous paper [Ohsawa, Nucl. Instrum. and Meth. B 227 (2005) 431], which mainly considered the total uncertainty ( 13%), as well as absolute DDCS data (7~10000 eV) by 6.0 MeV/u He2+ ions. All DDCS data, including the newly obtained (20~12000 eV) by 10.0 MeV/u He2+ ions, are compared with classical theories after being corrected for relativistic effects. Based on the Rudd model and the Rutherford cross section, the experimental results are discussed by taking account of the momentum spread of the bound electrons. This paper mainly describes the analysis of low-energy electrons and binary encounter peaks at high energies, as well as details of relativistic corrections.}, pages = {062710-1--062710-13}, title = {6.0-10.0-MeV/u He2+-ion-induced electron emission from water vapor}, volume = {72}, year = {2005} }