{"id":48553,"date":"2016-09-20T17:24:31","date_gmt":"2016-09-20T08:24:31","guid":{"rendered":"https:\/\/www.waseda.jp\/top\/en\/?p=48553"},"modified":"2017-02-09T09:36:52","modified_gmt":"2017-02-09T00:36:52","slug":"imaging-scattered-radionuclides-distribution-in-gamma-ray-shooting-using-a-drone","status":"publish","type":"post","link":"https:\/\/www.waseda.jp\/top\/en\/news\/48553","title":{"rendered":"Imaging scattered radionuclides distribution using a drone"},"content":{"rendered":"<p>A drone installed with portable Compton camera, a detector capable of visualizing a wide range of energy, succeeded in imaging the distribution of scattered radionuclides (137Cs) from the Fukushima nuclear disaster in just approximately 10 minutes. This gamma-ray shooting method using a drone, which has become rapidly widespread in recent years, is expected to be applied for effective decontamination operations. It will also play a significant role in surveying large areas, such as public facilities including schools and privately owned forests and woodlands.<\/p>\n<p>As of September 14, a team led by Professors Jun Kataoka and Hiroshi Okochi from the Faculty of Science and Engineering is conducting research on radionuclides in Namie Town, Fukushima. As a part of this survey, the team installed a laptop and their original Compton camera, weighing 1.9kg and developed by Professor Kataoka, onto a commercial drone (Da-Jiang Innovation Science and Technology Co., Ltd., S1000+: 4.4kg). Then, the drone flew 15 to 20m high in the sky, shooting images of an area of 70m in diameter at once. The acquired images were transmitted real time.<\/p>\n<p>Similar experiments have been conducted using large unmanned helicopters, but using a drone is the first of its kind in the world. The team was able to overcome various issues, such as the heavy weight of gamma-ray cameras and entire systems, in addition to the complexity of the interface. This experiment was possible because of the system weighing less than 5kg and the light weight, highly sensitive Compton camera, making it possible to quickly conduct surveys using an inexpensive drone.<\/p>\n\n\t\t<style type=\"text\/css\">\n\t\t\t#gallery-2 {\n\t\t\t\tmargin: auto;\n\t\t\t}\n\t\t\t#gallery-2 .gallery-item {\n\t\t\t\tfloat: left;\n\t\t\t\tmargin-top: 10px;\n\t\t\t\ttext-align: center;\n\t\t\t\twidth: 50%;\n\t\t\t}\n\t\t\t#gallery-2 img {\n\t\t\t\tborder: 2px solid #cfcfcf;\n\t\t\t}\n\t\t\t#gallery-2 .gallery-caption {\n\t\t\t\tmargin-left: 0;\n\t\t\t}\n\t\t\t\/* see gallery_shortcode() in wp-includes\/media.php *\/\n\t\t<\/style>\n\t\t<div id='gallery-2' class='gallery galleryid-48553 gallery-columns-2 gallery-size-thumbnail'><dl class='gallery-item'>\n\t\t\t<dt class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/www.waseda.jp\/top\/en\/2-42'><img loading=\"lazy\" decoding=\"async\" width=\"360\" height=\"270\" src=\"https:\/\/www.waseda.jp\/top\/en\/assets\/uploads\/2016\/09\/2-1-360x270.png\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" aria-describedby=\"gallery-2-44718\" srcset=\"https:\/\/www.waseda.jp\/top\/en\/assets\/uploads\/2016\/09\/2-1-360x270.png 360w, https:\/\/www.waseda.jp\/top\/en\/assets\/uploads\/2016\/09\/2-1-610x455.png 610w, https:\/\/www.waseda.jp\/top\/en\/assets\/uploads\/2016\/09\/2-1-768x573.png 768w, https:\/\/www.waseda.jp\/top\/en\/assets\/uploads\/2016\/09\/2-1-720x540.png 720w, https:\/\/www.waseda.jp\/top\/en\/assets\/uploads\/2016\/09\/2-1.png 882w\" sizes=\"auto, (max-width: 360px) 100vw, 360px\" \/><\/a>\n\t\t\t<\/dt>\n\t\t\t\t<dd class='wp-caption-text gallery-caption' id='gallery-2-44718'>\n\t\t\t\tDrone installed with Compton camera and laptop\n\t\t\t\t<\/dd><\/dl><dl class='gallery-item'>\n\t\t\t<dt class='gallery-icon portrait'>\n\t\t\t\t<a href='https:\/\/www.waseda.jp\/top\/en\/1-49'><img loading=\"lazy\" decoding=\"async\" width=\"360\" height=\"270\" src=\"https:\/\/www.waseda.jp\/top\/en\/assets\/uploads\/2016\/09\/1-1-360x270.png\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" aria-describedby=\"gallery-2-44717\" \/><\/a>\n\t\t\t<\/dt>\n\t\t\t\t<dd class='wp-caption-text gallery-caption' id='gallery-2-44717'>\n\t\t\t\tHow the drone takes images\n\t\t\t\t<\/dd><\/dl><br style=\"clear: both\" \/>\n\t\t<\/div>\n\n<h4>Experiment 1: From the Tsushima annex&#8217;s field of Namie High School<\/h4>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-44719 size-full\" src=\"https:\/\/www.waseda.jp\/top\/en\/assets\/uploads\/2016\/09\/3.png\" alt=\"3\" width=\"991\" height=\"504\" srcset=\"https:\/\/www.waseda.jp\/top\/en\/assets\/uploads\/2016\/09\/3.png 991w, https:\/\/www.waseda.jp\/top\/en\/assets\/uploads\/2016\/09\/3-610x310.png 610w, https:\/\/www.waseda.jp\/top\/en\/assets\/uploads\/2016\/09\/3-768x391.png 768w\" sizes=\"auto, (max-width: 991px) 100vw, 991px\" \/><br \/>\n<img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-44720 size-full\" src=\"https:\/\/www.waseda.jp\/top\/en\/assets\/uploads\/2016\/09\/4.png\" alt=\"4\" width=\"1376\" height=\"749\" srcset=\"https:\/\/www.waseda.jp\/top\/en\/assets\/uploads\/2016\/09\/4.png 1376w, https:\/\/www.waseda.jp\/top\/en\/assets\/uploads\/2016\/09\/4-610x332.png 610w, https:\/\/www.waseda.jp\/top\/en\/assets\/uploads\/2016\/09\/4-768x418.png 768w\" sizes=\"auto, (max-width: 1376px) 100vw, 1376px\" \/><\/p>\n<h4>Experiment 2: From the woodlands of Namie<\/h4>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-44722 size-full\" src=\"https:\/\/www.waseda.jp\/top\/en\/assets\/uploads\/2016\/09\/6.png\" alt=\"6\" width=\"756\" height=\"812\" srcset=\"https:\/\/www.waseda.jp\/top\/en\/assets\/uploads\/2016\/09\/6.png 756w, https:\/\/www.waseda.jp\/top\/en\/assets\/uploads\/2016\/09\/6-610x655.png 610w\" sizes=\"auto, (max-width: 756px) 100vw, 756px\" \/><\/p>\n<h4>Experiment 3: Measuring extreme change in dose rate<\/h4>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-44723 size-full\" src=\"https:\/\/www.waseda.jp\/top\/en\/assets\/uploads\/2016\/09\/7.png\" alt=\"7\" width=\"1484\" height=\"718\" srcset=\"https:\/\/www.waseda.jp\/top\/en\/assets\/uploads\/2016\/09\/7.png 1484w, https:\/\/www.waseda.jp\/top\/en\/assets\/uploads\/2016\/09\/7-610x295.png 610w, https:\/\/www.waseda.jp\/top\/en\/assets\/uploads\/2016\/09\/7-768x372.png 768w\" sizes=\"auto, (max-width: 1484px) 100vw, 1484px\" \/><\/p>\n","protected":false},"excerpt":{"rendered":"<p>A drone installed with portable Compton camera, a detector capable of visualizing a wide range of energy, succ [&hellip;]<\/p>\n","protected":false},"author":4,"featured_media":44768,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[81,117],"tags":[],"class_list":["post-48553","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news","category-topic"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.waseda.jp\/top\/en\/wp-json\/wp\/v2\/posts\/48553","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.waseda.jp\/top\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.waseda.jp\/top\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.waseda.jp\/top\/en\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/www.waseda.jp\/top\/en\/wp-json\/wp\/v2\/comments?post=48553"}],"version-history":[{"count":0,"href":"https:\/\/www.waseda.jp\/top\/en\/wp-json\/wp\/v2\/posts\/48553\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.waseda.jp\/top\/en\/wp-json\/wp\/v2\/media\/44768"}],"wp:attachment":[{"href":"https:\/\/www.waseda.jp\/top\/en\/wp-json\/wp\/v2\/media?parent=48553"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.waseda.jp\/top\/en\/wp-json\/wp\/v2\/categories?post=48553"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.waseda.jp\/top\/en\/wp-json\/wp\/v2\/tags?post=48553"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}