{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"A 20-MeV betatron for x-ray therapy (Metropolitan;Vickers Electrical Co., Ltd. Research series;no.23)","author_name":"Donald Major","thumbnail_url":"https://www.ebooknetworking.net/books/noimage.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-B0000CJJG5.html\">A 20-MeV betatron for x-ray therapy (Metropolitan;Vickers Electrical Co., Ltd. Research series;no.23)</a>","width":400,"height":300}