{"id":687565,"date":"2024-08-04T03:20:16","date_gmt":"2024-08-04T02:20:16","guid":{"rendered":"https:\/\/www.thermal-engineering.org\/?p=687565"},"modified":"2024-08-04T03:20:16","modified_gmt":"2024-08-04T02:20:16","slug":"heli-long-ung-dung-nam-cham-sieu-dan-may-mri","status":"publish","type":"post","link":"https:\/\/www.thermal-engineering.org\/vi\/heli-long-ung-dung-nam-cham-sieu-dan-may-mri\/","title":{"rendered":"Heli L\u1ecfng | \u1ee8ng D\u1ee5ng Nam Ch\u00e2m Si\u00eau D\u1eabn, M\u00e1y MRI"},"content":{"rendered":"<p class=\"sidekick\">Heli l\u1ecfng: \u1ee8ng d\u1ee5ng c\u1ee7a nam ch\u00e2m si\u00eau d\u1eabn v\u00e0 m\u00e1y MRI, t\u00ednh ch\u1ea5t \u0111\u1ed9c \u0111\u00e1o trong k\u1ef9 thu\u1eadt nhi\u1ec7t v\u00e0 vai tr\u00f2 quan tr\u1ecdng trong y h\u1ecdc hi\u1ec7n \u0111\u1ea1i.<\/p>\n<p><img src=\"https:\/\/www.thermal-engineering.org\/wp-content\/uploads\/2024\/07\/heli_long_ung_dung_nam_cham_sieu_dan_may_mri.png\" alt=\"Heli L\u1ecfng | \u1ee8ng D\u1ee5ng Nam Ch\u00e2m Si\u00eau D\u1eabn, M\u00e1y MRI\" style=\"display: block; margin-left: auto; margin-right: auto;\"\/><\/p>\n<h2>Heli L\u1ecfng | \u1ee8ng D\u1ee5ng Nam Ch\u00e2m Si\u00eau D\u1eabn, M\u00e1y MRI<\/h2>\n<p>Trong l\u0129nh v\u1ef1c k\u0129 thu\u1eadt nhi\u1ec7t, heli l\u1ecfng l\u00e0 m\u1ed9t ch\u1ea5t l\u1ecfng quan tr\u1ecdng \u0111\u00f3ng vai tr\u00f2 ch\u1ee7 y\u1ebfu trong nhi\u1ec1u \u1ee9ng d\u1ee5ng kh\u00e1c nhau. \u0110i\u1ec1u n\u00e0y m\u1ed9t ph\u1ea7n nh\u1edd v\u00e0o nhi\u1ec7t \u0111\u1ed9 s\u00f4i c\u1ef1c k\u1ef3 th\u1ea5p c\u1ee7a heli, kho\u1ea3ng -268.9\u00b0C (4.2 K), gi\u00fap n\u00f3 tr\u1edf th\u00e0nh m\u1ed9t dung m\u00f4i l\u00fd t\u01b0\u1edfng trong c\u00e1c h\u1ec7 th\u1ed1ng y\u00eau c\u1ea7u l\u00e0m m\u00e1t c\u1ef1c k\u1ef3 th\u1ea5p.<\/p>\n<h2>Heli L\u1ecfng v\u00e0 Nam Ch\u00e2m Si\u00eau D\u1eabn<\/h2>\n<p>Nam ch\u00e2m si\u00eau d\u1eabn ho\u1ea1t \u0111\u1ed9ng \u1edf nhi\u1ec7t \u0111\u1ed9 c\u1ef1c th\u1ea5p, \u0111i\u1ec3n h\u00ecnh d\u01b0\u1edbi 10 K, \u0111\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c tr\u1ea1ng th\u00e1i si\u00eau d\u1eabn, n\u01a1i \u0111i\u1ec7n tr\u1edf c\u1ee7a ch\u00fang tr\u1edf v\u1ec1 b\u1eb1ng kh\u00f4ng. Heli l\u1ecfng th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 l\u00e0m m\u00e1t c\u00e1c nam ch\u00e2m n\u00e0y, gi\u00fap duy tr\u00ec t\u00ednh ch\u1ea5t si\u00eau d\u1eabn c\u1ee7a ch\u00fang. C\u00f4ng ngh\u1ec7 nam ch\u00e2m si\u00eau d\u1eabn c\u00f3 nhi\u1ec1u \u1ee9ng d\u1ee5ng, bao g\u1ed3m trong c\u00e1c m\u00e1y gia t\u1ed1c h\u1ea1t v\u00e0 h\u1ec7 th\u1ed1ng l\u01b0u tr\u1eef n\u0103ng l\u01b0\u1ee3ng t\u1eeb.<\/p>\n<ul>\n<li><b>M\u00e1y Gia T\u1ed1c H\u1ea1t:<\/b> Trong c\u00e1c m\u00e1y gia t\u1ed1c h\u1ea1t, nh\u01b0 Large Hadron Collider (LHC) t\u1ea1i CERN, nam ch\u00e2m si\u00eau d\u1eabn \u0111\u01b0\u1ee3c l\u00e0m m\u00e1t b\u1edfi heli l\u1ecfng \u0111\u1ec3 t\u1ea1o ra t\u1eeb tr\u01b0\u1eddng c\u1ef1c m\u1ea1nh, c\u1ea7n thi\u1ebft \u0111\u1ec3 \u0111i\u1ec1u khi\u1ec3n c\u00e1c h\u1ea1t c\u00f3 n\u0103ng l\u01b0\u1ee3ng cao.<\/li>\n<li><b>H\u1ec7 Th\u1ed1ng L\u01b0u Tr\u1eef N\u0103ng L\u01b0\u1ee3ng:<\/b> Nam ch\u00e2m si\u00eau d\u1eabn c\u0169ng \u0111\u01b0\u1ee3c d\u00f9ng trong c\u00e1c h\u1ec7 th\u1ed1ng l\u01b0u tr\u1eef n\u0103ng l\u01b0\u1ee3ng t\u1eeb, gi\u00fap l\u01b0u tr\u1eef v\u00e0 th\u1ea3 n\u0103ng l\u01b0\u1ee3ng m\u1ed9t c\u00e1ch hi\u1ec7u qu\u1ea3.<\/li>\n<\/ul>\n<h2>Heli L\u1ecfng v\u00e0 M\u00e1y MRI<\/h2>\n<p>M\u00e1y ch\u1ee5p c\u1ed9ng h\u01b0\u1edfng t\u1eeb (MRI &#8211; Magnetic Resonance Imaging) l\u00e0 m\u1ed9t thi\u1ebft b\u1ecb y khoa quan tr\u1ecdng s\u1eed d\u1ee5ng nam ch\u00e2m si\u00eau d\u1eabn \u0111\u1ec3 t\u1ea1o ra t\u1eeb tr\u01b0\u1eddng m\u1ea1nh c\u1ea7n thi\u1ebft cho qu\u00e1 tr\u00ecnh ch\u1ee5p \u1ea3nh. \u0110\u1ec3 duy tr\u00ec t\u1eeb tr\u01b0\u1eddng m\u1ea1nh n\u00e0y, nam ch\u00e2m si\u00eau d\u1eabn trong m\u00e1y MRI c\u0169ng c\u1ea7n \u0111\u01b0\u1ee3c l\u00e0m m\u00e1t \u0111\u1ebfn nhi\u1ec7t \u0111\u1ed9 c\u1ef1c th\u1ea5p, v\u00e0 heli l\u1ecfng l\u00e0 ch\u1ea5t l\u00e0m m\u00e1t l\u00fd t\u01b0\u1edfng cho nhi\u1ec7m v\u1ee5 n\u00e0y.<\/p>\n<ol>\n<li><b>L\u00e0m M\u00e1t Nam Ch\u00e2m Si\u00eau D\u1eabn:<\/b> Trong m\u00e1y MRI, heli l\u1ecfng \u0111\u00f3ng vai tr\u00f2 kh\u00f4ng th\u1ec3 thay th\u1ebf trong vi\u1ec7c l\u00e0m m\u00e1t nam ch\u00e2m si\u00eau d\u1eabn, duy tr\u00ec nhi\u1ec7t \u0111\u1ed9 d\u01b0\u1edbi 4.2 K \u0111\u1ec3 gi\u1eef cho nam ch\u00e2m ho\u1ea1t \u0111\u1ed9ng trong tr\u1ea1ng th\u00e1i si\u00eau d\u1eabn.<\/li>\n<li><b>\u1ed4n \u0110\u1ecbnh M\u00f4i Tr\u01b0\u1eddng Ho\u1ea1t \u0110\u1ed9ng:<\/b> Heli l\u1ecfng gi\u00fap \u1ed5n \u0111\u1ecbnh nhi\u1ec7t \u0111\u1ed9 v\u00e0 m\u00f4i tr\u01b0\u1eddng ho\u1ea1t \u0111\u1ed9ng c\u1ee7a nam ch\u00e2m si\u00eau d\u1eabn, t\u1eeb \u0111\u00f3 \u0111\u1ea3m b\u1ea3o \u0111\u1ed9 ch\u00ednh x\u00e1c v\u00e0 \u0111\u1ed9 tin c\u1eady c\u1ee7a m\u00e1y MRI trong qu\u00e1 tr\u00ecnh ch\u1ee5p \u1ea3nh.<\/li>\n<\/ol>\n<p>T\u00f3m l\u1ea1i, heli l\u1ecfng l\u00e0 m\u1ed9t th\u00e0nh ph\u1ea7n kh\u00f4ng th\u1ec3 thi\u1ebfu trong c\u00f4ng ngh\u1ec7 c\u1ee7a nam ch\u00e2m si\u00eau d\u1eabn v\u00e0 m\u00e1y MRI, c\u1ea3 hai \u0111\u1ec1u \u0111\u00f2i h\u1ecfi m\u00f4i tr\u01b0\u1eddng nhi\u1ec7t \u0111\u1ed9 c\u1ef1c k\u1ef3 th\u1ea5p. S\u1ef1 \u1ee9ng d\u1ee5ng c\u1ee7a heli l\u1ecfng kh\u00f4ng ch\u1ec9 gi\u00fap duy tr\u00ec ho\u1ea1t \u0111\u1ed9ng c\u1ee7a c\u00e1c h\u1ec7 th\u1ed1ng n\u00e0y m\u00e0 c\u00f2n g\u00f3p ph\u1ea7n quan tr\u1ecdng v\u00e0o s\u1ef1 ph\u00e1t tri\u1ec3n c\u1ee7a nhi\u1ec1u l\u0129nh v\u1ef1c khoa h\u1ecdc v\u00e0 y t\u1ebf.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Heli l\u1ecfng: \u1ee8ng d\u1ee5ng c\u1ee7a nam ch\u00e2m si\u00eau d\u1eabn v\u00e0 m\u00e1y MRI, t\u00ednh ch\u1ea5t \u0111\u1ed9c \u0111\u00e1o trong k\u1ef9 thu\u1eadt nhi\u1ec7t v\u00e0 vai tr\u00f2 quan tr\u1ecdng trong y h\u1ecdc hi\u1ec7n \u0111\u1ea1i.<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[132],"tags":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v15.4 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Heli L\u1ecfng | \u1ee8ng 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