Question 756
{"accessible":false,"alternatives":[{"id":3834,"text":"is useful to determine accurately incident area-exposure product for examination of the knee, cervical spine, wrist and fingers etc"},{"id":3835,"text":"may be used to estimate effective dose"},{"id":3836,"text":"is not related to the kerma-area product"},{"id":3837,"text":"measures integral dose to the patient"},{"id":3838,"text":"measures the product of x-ray output and x-ray beam cross-sectional area"}],"archived":false,"correctAlternativeId":3838,"explanation":"\u003cp\u003eDAP is defined as the absorbed dose multiplied by the cross-sectional area irradiated. Its units are expressed in Gy·cm\u003csup\u003e2\u003c/sup\u003e.\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":756,"imageUrl":null,"imageAttribution":null,"imageAttributionCaseInfo":null,"firstQuestionPath":"/questions/784","nextQuestionPath":"/articles/absorbed-dose/questions/700","relatedArticles":[],"alsoUsedIn":[],"stem":"\u003cp\u003eThe dose-area product (DAP)...\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/756"}],"attemptsPercentages":[{"alternativeId":"3837","percentage":8},{"alternativeId":"3836","percentage":4},{"alternativeId":"3834","percentage":15},{"alternativeId":"3838","percentage":44},{"alternativeId":"3835","percentage":28}],"promptToLogin":false,"questionManager":false,"articleId":"absorbed-dose"}