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            ______    _____      ___     __   __  
  ____     /_   _//  / ____||   / _ \\   \ \\/ // 
 |    \\    -| ||-  / //---`'  | / \ ||   \   //  
 | [] ||    _| ||_  \ \\___    | \_/ ||   / . \\  
 |  __//   /_____//  \_____||   \___//   /_//\_\\ 
 |_|`-`    `-----`    `----`    `---`    `-`  --` 
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Text this: Measurements of ion current from a corona-needle using a faraday cup electrometer