Question 2750
{"accessible":false,"alternatives":[{"id":13424,"text":"increasing anode angle"},{"id":13425,"text":"increasing magnification"},{"id":13426,"text":"increasing object to image distance"},{"id":13427,"text":"increasing source to object distance"}],"archived":false,"correctAlternativeId":13427,"explanation":"\u003cp\u003e\u003cstrong\u003eGeometric unsharpness = Effective focal spot * (OID/SOD)\u003c/strong\u003e\u003c/p\u003e\u003cp\u003eReduce effective focal spot size\u003c/p\u003e\u003cul\u003e\n\u003cli\u003e\u003cp\u003eDecrease anode angle\u003c/p\u003e\u003c/li\u003e\n\u003cli\u003e\u003cp\u003eUse smaller cathode filament\u003c/p\u003e\u003c/li\u003e\n\u003c/ul\u003e\u003cp\u003eDecrease object to image distance\u003cbr\u003eIncrease source to object distance\u003c/p\u003e","id":2750,"imageUrl":null,"imageAttribution":null,"imageAttributionCaseInfo":null,"firstQuestionPath":"/questions/2751","nextQuestionPath":"/articles/anode-angle/questions/2738","relatedArticles":[{"id":29771,"title":"Focal spot","link":"/articles/focal-spot?lang=us"},{"id":16209,"title":"Magnification view (mammography)","link":"/articles/magnification-view-mammography?lang=us"},{"id":80077,"title":"Blur","link":"/articles/blur?lang=us"}],"alsoUsedIn":[{"id":1563,"kind":"RestrictedPage","title":"Page 1563 (in no courses)","link":"https://radiopaedia.org/admin/restricted_pages/1563"},{"id":2007,"kind":"Course","title":"Imaging Physics: X-ray - page 2007","link":"https://radiopaedia.org/courses/imaging-physics-x-ray/pages/2007"},{"id":2007,"kind":"Course","title":"Imaging Physics: X-ray peer review - page 2007","link":"https://radiopaedia.org/courses/imaging-physics-x-ray-peer-review/pages/2007"}],"stem":"\u003cp\u003eWhich of the following reduces geometric blurring?\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/2750"}],"attemptsPercentages":[{"alternativeId":"13424","percentage":9},{"alternativeId":"13426","percentage":14},{"alternativeId":"13427","percentage":71},{"alternativeId":"13425","percentage":6}],"promptToLogin":false,"questionManager":false,"articleId":"anode-angle"}