Question 807
{"accessible":false,"alternatives":[{"id":4082,"text":"as a collimation device"},{"id":4083,"text":"as a mechanism to reduce scattered radiation"},{"id":4084,"text":"as an alternate energy source during blackouts"},{"id":4085,"text":"for filtration of the x-ray beam"},{"id":4086,"text":"in lieu of a conventional video camera to look at the output of the image intensifier"}],"archived":false,"correctAlternativeId":4086,"explanation":"\u003cp\u003eSemiconductor Video Cameras are typically based on charged coupled device (CCD) technology and consist of a semiconductor chip that is sensitive to light. The chip contains many thousands of electronic sensors (e.g. photodiodes) each of which reacts to light and generates a signal that varies depending on the amount of light each receives.\u003c/p\u003e\u003cp\u003eAdapted from\u0026nbsp;\u003ca href=\"https://en.wikibooks.org/wiki/Basic_Physics_of_Digital_Radiography\"\u003eBasic Physics of Digital Radiography\u003c/a\u003e\u0026nbsp;by\u0026nbsp;Kieran Maher,\u0026nbsp;with author's permission (License:\u0026nbsp;\u003ca href=\"https://creativecommons.org/licenses/by-sa/3.0/\"\u003eCreative Commons\u0026nbsp;BY-SA 3.0\u003c/a\u003e).\u003c/p\u003e","id":807,"imageUrl":null,"imageAttribution":null,"imageAttributionCaseInfo":null,"firstQuestionPath":"/questions/807","nextQuestionPath":"/articles/beam-collimators/questions/766","relatedArticles":[{"id":29737,"title":"Filters","link":"/articles/filters?lang=us"},{"id":30308,"title":"Compton effect","link":"/articles/compton-effect?lang=us"},{"id":52641,"title":"Image intensifier","link":"/articles/image-intensifier?lang=us"}],"alsoUsedIn":[],"stem":"\u003cp\u003eA charge-coupled device can be used in digital fluoroscopy...\u003c/p\u003e","menuLinks":[{"text":"Report problem with question","url":"https://docs.google.com/forms/d/e/1FAIpQLSfO3soWYhOjJ7yErSysyCe5V4A1CqW7WK3rDA7MtAkecMGqNw/viewform?entry.1624461248\u0026entry.553583435=https://radiopaedia.org/questions/807"}],"attemptsPercentages":[{"alternativeId":"4085","percentage":15},{"alternativeId":"4084","percentage":7},{"alternativeId":"4086","percentage":56},{"alternativeId":"4082","percentage":10},{"alternativeId":"4083","percentage":11}],"promptToLogin":false,"questionManager":false,"articleId":"beam-collimators"}