{"term":{"id":"09175","title":"direct recoil spectroscopy","longtitle":"IUPAC Gold Book - direct recoil spectroscopy","doi":"10.1351\/goldbook.09175","code":"09175","status":"current","initialism":"<em>initialisms<\/em>: DRS, ERD, ERDA","synonym":"<em>synonyms<\/em>: elastic recoil detection, elastic recoil detection analysis","definitions":[{"id":1,"text":"Measurement method to elucidate composition and structure of the outermost atomic layers of a solid material, in which principally monoenergetic neutral atoms or singly charged probe ions are used to sputter atoms or ions out of the solid surface, their energy being recorded at one or more angle of scattering.","notes":{"1":"In the analysis, it is assumed that the recoiled atom or ion is from a single binary elastic scattering event. The energy is the complement of the primary ion scattered ion energy.","2":"The scattered primary ions can be removed from the spectrum by a suitable choice of angle of scattering.","3":"This method is often combined with rutherford backscattering spectrometry, as they share many concepts and instrumental items."},"links":[{"term":"Rutherford backscattering spectrometry","url":"https:\/\/goldbook.iupac.org\/\/terms\/view\/09178"},{"term":"probe ions","url":"https:\/\/goldbook.iupac.org\/\/terms\/view\/09378"}],"sources":["PAC, 2020, 92, 1781. 'Glossary of methods and terms used in surface chemical analysis (IUPAC Recommendations 2020)' on page 1784 (https:\/\/doi.org\/10.1515\/pac-2019-0404)"]}],"altoutputs":{"html":"https:\/\/goldbook.iupac.org\/terms\/view\/09175\/html","xml":"https:\/\/goldbook.iupac.org\/terms\/view\/09175\/xml","plain":"https:\/\/goldbook.iupac.org\/terms\/view\/09175\/plain"},"citation":"Citation: 'direct recoil spectroscopy' in IUPAC Compendium of Chemical Terminology, 5th ed. International Union of Pure and Applied Chemistry; 2025. Online version 5.0.0, 2025. 10.1351\/goldbook.09175","license":"The IUPAC Gold Book is licensed under Creative Commons Attribution-ShareAlike CC BY-SA 4.0 International (https:\/\/creativecommons.org\/licenses\/by-sa\/4.0\/) for individual terms.","collection":"If you are interested in licensing the Gold Book for commercial use, please contact the IUPAC Executive Director at executivedirector@iupac.org .","disclaimer":"The International Union of Pure and Applied Chemistry (IUPAC) is continuously reviewing and, where needed, updating terms in the Compendium of Chemical Terminology (the IUPAC Gold Book). Users of these terms are encouraged to include the version of a term with its use and to check regularly for updates to term definitions that you are using.","accessed":"2026-04-20T12:43:05+00:00"}}