{"id":6197,"date":"2020-10-16T16:06:27","date_gmt":"2020-10-16T09:06:27","guid":{"rendered":"https:\/\/vinatom.gov.vn\/?p=6197"},"modified":"2020-10-16T16:06:27","modified_gmt":"2020-10-16T09:06:27","slug":"nghien-cuu-thiet-ke-che-tao-thanh-cong-he-do-notron-su-dung-dau-do-nhap-nhay-va-ky-thuat-xu-ly-tin-hieu-so","status":"publish","type":"post","link":"https:\/\/vinatom.gov.vn\/nghien-cuu-thiet-ke-che-tao-thanh-cong-he-do-notron-su-dung-dau-do-nhap-nhay-va-ky-thuat-xu-ly-tin-hieu-so\/","title":{"rendered":"Nghi\u00ean c\u1ee9u thi\u1ebft k\u1ebf ch\u1ebf t\u1ea1o th\u00e0nh c\u00f4ng h\u1ec7 \u0111o n\u01a1tron s\u1eed d\u1ee5ng \u0111\u1ea7u d\u00f2 nh\u1ea5p nh\u00e1y v\u00e0 k\u1ef9 thu\u1eadt x\u1eed l\u00fd t\u00edn hi\u1ec7u s\u1ed1"},"content":{"rendered":"<p style=\"text-align: justify\">V\u1edbi mong mu\u1ed1n n\u1ed9i \u0111\u1ecba h\u00f3a c\u00e1c thi\u1ebft b\u1ecb ghi \u0111o b\u1ee9c x\u1ea1 m\u00e0 trong \u0111\u00f3, ghi \u0111o n\u01a1tron v\u1edbi hi\u1ec7u su\u1ea5t cao v\u00e0 t\u00e1ch \u0111\u01b0\u1ee3c c\u00e1c b\u1ee9c x\u1ea1 \u0111i k\u00e8m l\u00e0 c\u00f4ng vi\u1ec7c kh\u00f3 kh\u0103n, nh\u00f3m nghi\u00ean c\u1ee9u g\u1ed3m c\u00e1c th\u00e0nh vi\u00ean ch\u00ednh l\u00e0 TS. Phan V\u0103n Chu\u00e2n (\u0110\u1ea1i h\u1ecdc \u0110\u00e0 L\u1ea1t), PGS. TS. Nguy\u1ec5n Xu\u00e2n H\u1ea3i, TS. Nguy\u1ec5n Ng\u1ecdc Anh (Vi\u1ec7n Nghi\u00ean c\u1ee9u h\u1ea1t nh\u00e2n) v\u00e0 PGS. TS. Ph\u1ea1m \u0110\u00ecnh Khang (\u0110\u1ea1i h\u1ecdc B\u00e1ch khoa H\u00e0 N\u1ed9i) \u0111\u00e3 thi\u1ebft k\u1ebf v\u00e0 ch\u1ebf t\u1ea1o th\u00e0nh c\u00f4ng m\u1ed9t h\u1ec7 \u0111o \u0111\u1ed3ng th\u1eddi n\u01a1tron v\u00e0 gamma s\u1eed d\u1ee5ng ch\u1ea5t nh\u1ea5p nh\u00e1y l\u1ecfng EJ-301.<\/p>\n<p>&nbsp;<\/p>\n<p style=\"text-align: justify\"><em>H\u1ec7 \u0111o g\u1ed3m c\u00e1c th\u00e0nh ph\u1ea7n: <\/em><\/p>\n<p style=\"text-align: justify\">+ \u0110\u1ea7u d\u00f2 n\u01a1tron s\u1eed d\u1ee5ng ch\u1ea5t nh\u1ea5p nh\u00e1y EJ-301 gh\u00e9p v\u1edbi \u1ed1ng nh\u00e2n quang \u0111i\u1ec7n PMT R9420 c\u1ee7a h\u00e3ng Hamamatsu, ti\u1ec1n khu\u1ebfch \u0111\u1ea1i \u0111\u01b0\u1ee3c ch\u1ebf t\u1ea1o ph\u00f9 h\u1ee3p v\u1edbi ki\u1ec3u c\u1ee7a \u1ed1ng nh\u00e2n quang sao cho c\u00e1c th\u00e0nh ph\u1ea7n \u0111\u1eb7c tr\u01b0ng c\u1ee7a xung \u0111\u01b0\u1ee3c khu\u1ebfch \u0111\u1ea1i v\u00e0 b\u1ea3o to\u00e0n, ph\u1ea7n v\u1ecf \u0111\u1ea7u d\u00f2 \u0111\u01b0\u1ee3c gia c\u00f4ng t\u1eeb nh\u00f4m nguy\u00ean kh\u1ed1i. C\u00e1c \u0111\u1eb7c tr\u01b0ng c\u1ee7a \u0111\u1ea7u d\u00f2 \u0111\u00e3 \u0111\u01b0\u1ee3c c\u00f4ng b\u1ed1 tr\u00ean t\u1ea1p ch\u00ed <em>Nuclear Engineering and Technology<\/em><\/p>\n<p style=\"text-align: justify\"><a href=\"https:\/\/www.sciencedirect.com\/science\/article\/pii\/S1738573317307209\">https:\/\/www.sciencedirect.com\/science\/article\/pii\/S1738573317307209<\/a>.<\/p>\n<p style=\"text-align: justify\">+ Ph\u1ea7n thi\u1ebft b\u1ecb x\u1eed l\u00fd t\u00edn hi\u1ec7u \u0111\u01b0\u1ee3c l\u1eadp tr\u00ecnh tr\u00ean c\u01a1 s\u1edf c\u1ee7a vi m\u1ea1ch l\u1ea5y m\u1eabu nhanh DRS4 do Vi\u1ec7n nghi\u00ean c\u1ee9u Paul Scherrer ph\u00e1t tri\u1ec3n. Nh\u00f3m nghi\u00ean c\u1ee9u \u0111\u00e3 th\u1eed nghi\u1ec7m 4 thu\u1eadt to\u00e1n t\u00e1ch xung n\u01a1tron\/gamma v\u1edbi \u0111\u1ea7u d\u00f2 \u0111\u01b0\u1ee3c ch\u1ebf t\u1ea1o. K\u1ebft qu\u1ea3 so s\u00e1nh gi\u1eefa m\u00f4 ph\u1ecfng v\u00e0 th\u1ef1c nghi\u1ec7m \u0111\u01b0\u1ee3c c\u00f4ng b\u1ed1 tr\u00ean t\u1ea1p ch\u00ed <a href=\"https:\/\/link.springer.com\/journal\/10470\"><em>Analog Integrated Circuits and Signal Processing<\/em><\/a> <a href=\"https:\/\/link.springer.com\/article\/10.1007\/s10470-018-1324-0\">https:\/\/link.springer.com\/article\/10.1007\/s10470-018-1324-0<\/a>. C\u00e1c thu\u1eadt to\u00e1n \u0111\u00e3 \u0111\u01b0\u1ee3c t\u00edch h\u1ee3p v\u00e0o ph\u1ea7n m\u1ec1m \u0111o v\u00e0 \u0111i\u1ec1u khi\u1ec3n, h\u1ec7 \u0111o \u0111\u00e3 \u0111\u01b0\u1ee3c \u0111o th\u1eed nghi\u1ec7m tr\u00ean ngu\u1ed3n n\u01a1tron v\u00e0 tr\u00ean k\u00eanh n\u01a1tron c\u1ee7a l\u00f2 ph\u1ea3n \u1ee9ng h\u1ea1t nh\u00e2n \u0110\u00e0 L\u1ea1t. C\u00e1c \u0111\u00e1nh gi\u00e1 cho th\u1ea5y h\u1ec7 \u0111\u1ea1t \u0111\u1ed9 ch\u00ednh x\u00e1c tr\u00ean 95% v\u1edbi c\u00e1c s\u1ef1 ki\u1ec7n t\u1eeb n\u0103ng l\u01b0\u1ee3ng 75 keV tr\u1edf l\u00ean.<\/p>\n<p>&nbsp;<\/p>\n<p style=\"text-align: justify\">So v\u1edbi c\u00e1c h\u1ec7 \u0111o kh\u00e1c, ngo\u00e0i kh\u1ea3 n\u0103ng nh\u1eadn di\u1ec7n ch\u00ednh x\u00e1c c\u00e1c s\u1ef1 ki\u1ec7n \u1edf ng\u01b0\u1ee1ng n\u0103ng l\u01b0\u1ee3ng th\u1ea5p, h\u1ec7 \u0111o c\u00f3 th\u1ec3 t\u00e1ch c\u00e1c s\u1ef1 ki\u1ec7n n\u01a1tron v\u00e0 gamma th\u00e0nh hai ph\u1ed5 ri\u00eang bi\u1ec7t v\u1edbi \u0111\u1ed9 ch\u00ednh x\u00e1c cao, do \u0111\u00f3 c\u00f3 th\u1ec3 \u1ee9ng d\u1ee5ng m\u1ed9t c\u00e1ch hi\u1ec7u qu\u1ea3 trong c\u00e1c thi\u1ebft b\u1ecb \u0111o li\u1ec1u v\u00e0 c\u1ea3nh b\u00e1o b\u1ee9c x\u1ea1 li\u00ean quan \u0111\u1ebfn ngu\u1ed3n n\u01a1tron v\u00e0 gamma.<\/p>\n<p>&nbsp;<\/p>\n<p style=\"text-align: justify\">Th\u00e0nh c\u00f4ng ban \u0111\u1ea7u c\u1ee7a nh\u00f3m l\u00e0 ngu\u1ed3n \u0111\u1ed9ng vi\u00ean l\u1edbn \u0111\u1ec3 nh\u00f3m ti\u1ebfp t\u1ee5c thi\u1ebft k\u1ebf ch\u1ebf t\u1ea1o nh\u1eefng h\u1ec7 \u0111o m\u1edbi c\u00f3 hi\u1ec7u su\u1ea5t cao, kh\u1ea3 n\u0103ng ph\u00e2n bi\u1ec7t t\u1ed1t n\u01a1tron\/gamma \u1edf c\u00e1c n\u0103ng l\u01b0\u1ee3ng th\u1ea5p.<\/p>\n<p>&nbsp;<\/p>\n<p style=\"text-align: center\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-6198\" src=\"https:\/\/vinatom.gov.vn\/wp-content\/uploads\/2020\/10\/17.10.20.5.jpg\" alt=\"\" width=\"750\" height=\"269\" \/><em>H\u00ecnh 1: \u0110\u1ea7u d\u00f2 nh\u1ea5p nh\u00e1y EJ-301 \u0111\u01b0\u1ee3c nh\u00f3m nghi\u00ean c\u1ee9u ch\u1ebf t\u1ea1o cho m\u1ee5c \u0111\u00edch \u0111o \u0111\u1ed3ng th\u1eddi \u00a0n\u01a1tron v\u00e0 gamma<\/em><\/p>\n<p>&nbsp;<\/p>\n<p style=\"text-align: center\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-6199\" src=\"https:\/\/vinatom.gov.vn\/wp-content\/uploads\/2020\/10\/17.10.20.6.png\" alt=\"\" width=\"750\" height=\"381\" \/><em>H\u00ecnh 2: Ph\u00e2n b\u1ed1 tham s\u1ed1 nh\u1eadn d\u1ea1ng n\u01a1tron\/gamma c\u1ee7a b\u1ed1n thu\u1eadt to\u00e1n \u0111\u01b0\u1ee3c t\u00edch h\u1ee3p v\u00e0o ch\u01b0\u01a1ng tr\u00ecnh \u0111o<\/em><\/p>\n<p>&nbsp;<\/p>\n<p style=\"text-align: center\"><strong><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-6200\" src=\"https:\/\/vinatom.gov.vn\/wp-content\/uploads\/2020\/10\/17.10.20.7.jpg\" alt=\"\" width=\"750\" height=\"248\" \/><\/strong><em>H\u00ecnh 3: Th\u1eed nghi\u1ec7m h\u1ec7 \u0111o tr\u00ean ngu\u1ed3n <sup>252<\/sup>Cf v\u00e0 tr\u00ean k\u00eanh n\u01a1tron <\/em><\/p>\n<p style=\"text-align: center\"><em>c\u1ee7a l\u00f2 ph\u1ea3n \u1ee9ng h\u1ea1t nh\u00e2n \u0110\u00e0 L\u1ea1t<\/em><\/p>\n<p>&nbsp;<\/p>\n<p style=\"text-align: right\"><strong>Nguy\u1ec5n Ng\u1ecdc Anh, Vi\u1ec7n Nghi\u00ean c\u1ee9u h\u1ea1t nh\u00e2n<\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"<p>V\u1edbi mong mu\u1ed1n n\u1ed9i \u0111\u1ecba h\u00f3a c\u00e1c thi\u1ebft b\u1ecb ghi \u0111o b\u1ee9c x\u1ea1 m\u00e0 trong \u0111\u00f3, ghi \u0111o n\u01a1tron v\u1edbi hi\u1ec7u su\u1ea5t cao v\u00e0 t\u00e1ch \u0111\u01b0\u1ee3c c\u00e1c b\u1ee9c x\u1ea1 \u0111i k\u00e8m l\u00e0 c\u00f4ng vi\u1ec7c kh\u00f3 kh\u0103n, nh\u00f3m nghi\u00ean c\u1ee9u g\u1ed3m c\u00e1c th\u00e0nh vi\u00ean ch\u00ednh l\u00e0 TS. Phan V\u0103n Chu\u00e2n (\u0110\u1ea1i h\u1ecdc \u0110\u00e0 L\u1ea1t), PGS. TS. [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":6199,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[24],"tags":[],"class_list":["post-6197","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-tin-hoat-dong-cua-vien"],"_links":{"self":[{"href":"https:\/\/vinatom.gov.vn\/wp-json\/wp\/v2\/posts\/6197","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/vinatom.gov.vn\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/vinatom.gov.vn\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/vinatom.gov.vn\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/vinatom.gov.vn\/wp-json\/wp\/v2\/comments?post=6197"}],"version-history":[{"count":0,"href":"https:\/\/vinatom.gov.vn\/wp-json\/wp\/v2\/posts\/6197\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/vinatom.gov.vn\/wp-json\/"}],"wp:attachment":[{"href":"https:\/\/vinatom.gov.vn\/wp-json\/wp\/v2\/media?parent=6197"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vinatom.gov.vn\/wp-json\/wp\/v2\/categories?post=6197"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vinatom.gov.vn\/wp-json\/wp\/v2\/tags?post=6197"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}