Faraday cup

English Etymology Named after English scientist Michael Faraday (1791–1867), who first theorized ions around 1830. Noun A conductive metal cup designed to catch charged particles in vacuum. en 1996 IBM Journal of Research and Development, Volume 40 IBM International Business Machines Corporation https://books.google.com.au/books?id=d-VUAAAAMAAJ&q=%22Faraday+cup%22%7C%22Faraday+cups%22&dq=%22Faraday+cup%22%7C%22Faraday+cups%22&hl=en&newbks=1&newbks_redir=0&sa=X&ved=2ahUKEwjLy5uW2JjuAhVS7GEKHaPdCXoQ6AEwD3oECDkQAg 74 The inner cylinder of the Faraday cup is electrically connected to the brass plug, and is the electrically active part of the unit. en 2007 Sabine Becker Inorganic Mass Spectrometry: Principles and Applications https://books.google.com.au/books?id=z-YqpI3otNcC&pg=PA103&dq=%22Faraday+cup%22%7C%22Faraday+cups%22&hl=en&newbks=1&newbks_redir=0&sa=X&ved=2ahUKEwjLy5uW2JjuAhVS7GEKHaPdCXoQ6AEwCHoECC4QAg#v=onepage&q=%22Faraday%20cup%22%7C%22Faraday%20cups%22&f=false 103 Wiley In many mass spectrometers for electric ion detection a Faraday cup is generally used today for the direct and accurate measurement of ion currents of separated ion beams, especially if relatively high ion currents are to be measured. en 2014 Lothar Rottman; et al Chapter 4: Technical Background Thomas Prohaska; Johanna Irrgeher; Andreas Zitek; Norbert Jakubowski Sector Field Mass Spectrometry for Elemental and Isotopic Analysis w:Royal Society of Chemistry https://books.google.com.au/books?id=kEKlBQAAQBAJ&pg=PA88&dq=%22Faraday+cup%22%7C%22Faraday+cups%22&hl=en&newbks=1&newbks_redir=0&sa=X&ved=2ahUKEwjLy5uW2JjuAhVS7GEKHaPdCXoQ6AEwHnoECE8QAg#v=onepage&q=%22Faraday%20cup%22%7C%22Faraday%20cups%22&f=false 88 Faraday cups are the detectors of choice for precise and accurate isotope ratio measurements. Translations metal cup for catching charged particles German: de Faraday-Becher m, de Faraday-Auffänger m, de Faraday-Detektor m, de Faraday-Tasse f Italian: it coppa di Faraday f, it pozzo di Faraday m en Measuring instruments en eponyms