{"id":6053,"date":"2017-08-17T19:25:40","date_gmt":"2017-08-17T12:25:40","guid":{"rendered":"http:\/\/ttud.com.vn\/?p=6053"},"modified":"2017-10-03T09:39:17","modified_gmt":"2017-10-03T02:39:17","slug":"may-buc-xa-co-the-de-doa-suc-khoe-cua-hanh-khach-tren-may-bay","status":"publish","type":"post","link":"https:\/\/casta.ttud.com.vn\/index.php\/may-buc-xa-co-the-de-doa-suc-khoe-cua-hanh-khach-tren-may-bay\/","title":{"rendered":"M\u00e2y b\u1ee9c x\u1ea1 c\u00f3 th\u1ec3 \u0111e d\u1ecda s\u1ee9c kh\u1ecfe c\u1ee7a h\u00e0nh kh\u00e1ch tr\u00ean m\u00e1y bay"},"content":{"rendered":"

Nh\u1eefng v\u00f9ng nguy hi\u1ec3m tr\u00ean kh\u00f4ng, n\u01a1i m\u1ee9c \u0111\u1ed9 b\u1ee9c x\u1ea1 cao v\u1ed1n l\u00e0 kh\u00e1i ni\u1ec7m ch\u01b0a \u0111\u01b0\u1ee3c c\u00f4ng nh\u1eadn. Tuy nhi\u00ean, m\u00e1y bay ch\u1edf kh\u00e1ch trong t\u01b0\u01a1ng lai c\u00f3 th\u1ec3 s\u1ebd ph\u1ea3i tr\u00e1nh kh\u00f4ng bay v\u00e0o nh\u1eefng v\u00f9ng nh\u01b0 th\u1ebf n\u00e0y, t\u01b0\u01a1ng t\u1ef1 nh\u01b0 nh\u1eefng g\u00ec \u0111\u00e3 th\u1ef1c hi\u1ec7n v\u1edbi c\u00e1c \u0111\u00e1m m\u00e2y tro n\u00fai l\u1eeda, nh\u1eb1m h\u1ea1n ch\u1ebf t\u1ed1i \u0111a r\u1ee7i ro v\u1ec1 s\u1ee9c kh\u1ecfe \u0111\u1ed1i v\u1edbi du kh\u00e1ch c\u0169ng nh\u01b0 phi h\u00e0nh \u0111o\u00e0n.<\/strong><\/p>\n

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T\u1eeb l\u00e2u, ch\u00fang ta \u0111\u00e3 bi\u1ebft r\u1eb1ng vi\u1ec7c bay \u1edf \u0111\u1ed9 cao c\u00e0ng cao, kh\u1ea3 n\u0103ng c\u01a1 th\u1ec3 ti\u1ebfp x\u00fac v\u1edbi c\u00e1c tia v\u0169 tr\u1ee5 c\u00e0ng l\u1edbn. \u01af\u1edbc t\u00ednh l\u01b0\u1ee3ng b\u1ee9c x\u1ea1 h\u1ea5p th\u1ee5 tr\u00ean m\u1ed9t chuy\u1ebfn bay t\u1eeb London (Anh) \u0111\u1ebfn Tokyo (Nh\u1eadt B\u1ea3n) g\u1ea7n t\u01b0\u01a1ng \u0111\u01b0\u01a1ng v\u1edbi vi\u1ec7c ch\u1ee5p X-quang. Qua nghi\u00ean c\u1ee9u, c\u00e1c nh\u00e0 khoa h\u1ecdc x\u00e1c nh\u1eadn c\u00f3 s\u1ef1 t\u1ed3n t\u1ea1i c\u1ee7a nh\u1eefng \u201c\u0111\u00e1m m\u00e2y\u201d, n\u01a1i m\u1ee9c \u0111\u1ed9 b\u1ee9c x\u1ea1 c\u00f3 th\u1ec3 \u00edt nh\u1ea5t g\u1ea5p \u0111\u00f4i m\u1ee9c an to\u00e0n.<\/p>\n

Nh\u1eefng ph\u00e1t hi\u1ec7n n\u00e0y l\u00e0 m\u1ed9t ph\u1ea7n k\u1ebft qu\u1ea3 thu \u0111\u01b0\u1ee3c t\u1eeb ch\u01b0\u01a1ng tr\u00ecnh T\u1ef1 \u0111\u1ed9ng \u0111o l\u01b0\u1eddng m\u1ee9c ph\u00f3ng x\u1ea1 v\u0169 tr\u1ee5 cho s\u1ef1 an to\u00e0n (ARMAS) do NASA t\u00e0i tr\u1ee3, nh\u1eb1m m\u1ee5c \u0111\u00edch ph\u00e1t tri\u1ec3n c\u00e1c ph\u01b0\u01a1ng ph\u00e1p m\u1edbi \u0111\u1ec3 \u0111o l\u01b0\u1eddng v\u00e0 gi\u00e1m s\u00e1t b\u1ee9c x\u1ea1 t\u1ea7m cao. Trong s\u1ed1 265 chuy\u1ebfn bay \u0111\u01b0\u1ee3c ph\u00e2n t\u00edch, c\u01b0\u1eddng \u0111\u1ed9 b\u1ee9c x\u1ea1 nh\u00ecn chung kh\u00f4ng thay \u0111\u1ed5i so v\u1edbi d\u1ef1 \u0111o\u00e1n, nh\u01b0ng c\u00f3 \u00edt nh\u1ea5t 6 tr\u01b0\u1eddng h\u1ee3p b\u1ee9c x\u1ea1 t\u0103ng l\u00ean, l\u00e0m d\u1ea5y l\u00ean m\u1ed1i nghi ng\u1edd r\u1eb1ng m\u00e1y bay \u0111\u00e3 \u0111i qua c\u00e1c \u0111\u00e1m m\u00e2y ph\u00f3ng x\u1ea1.<\/p>\n

“Ch\u00fang t\u00f4i nh\u1eadn th\u1ea5y v\u00e0i tr\u01b0\u1eddng h\u1ee3p vi\u1ec7c ti\u1ebfp x\u00fac v\u1edbi b\u1ee9c x\u1ea1 t\u0103ng g\u1ea5p \u0111\u00f4i khi bay qua c\u00e1c \u0111\u00e1m m\u00e2y\u201d, W. Kent Tobiska, ng\u01b0\u1eddi \u0111\u1ee9ng \u0111\u1ea7u ch\u01b0\u01a1ng tr\u00ecnh ARMAS cho bi\u1ebft. Trong m\u1ed9t s\u1ed1 tr\u01b0\u1eddng h\u1ee3p, th\u1eadm ch\u00ed c\u01b0\u1eddng \u0111\u1ed9 b\u1ee9c x\u1ea1 ti\u1ebfp x\u00fac c\u00f2n cao h\u01a1n. Theo \u00f4ng Tobiska, c\u00f3 2 ngu\u1ed3n b\u1ee9c x\u1ea1 ch\u00ednh, bao g\u1ed3m c\u00e1c tia v\u0169 tr\u1ee5 v\u00e0 gi\u00f3 M\u1eb7t Tr\u1eddi. Tuy nhi\u00ean, k\u1ebft qu\u1ea3 \u0111o \u0111\u1ea1c trong nghi\u00ean c\u1ee9u m\u1edbi cho th\u1ea5y c\u00f3 th\u1ec3 c\u00f2n m\u1ed9t y\u1ebfu t\u1ed1 th\u1ee9 3 – b\u00e3o t\u1eeb. V\u1ea5n \u0111\u1ec1 n\u00e0y c\u00f3 li\u00ean quan \u0111\u1ebfn c\u00e1c electron c\u1ee7a v\u00e0nh \u0111ai b\u1ee9c x\u1ea1 Van Allen, n\u01a1i \u0111a ph\u1ea7n nh\u1eefng h\u1ea1t t\u1eeb gi\u00f3 M\u1eb7t Tr\u1eddi b\u1ecb gi\u1eef l\u1ea1i b\u1edfi t\u1eeb tr\u01b0\u1eddng c\u1ee7a Tr\u00e1i \u0111\u1ea5t.<\/p>\n

Tobiska tin r\u1eb1ng m\u1ed9t c\u01a1n b\u00e3o nh\u01b0 v\u1eady c\u00f3 th\u1ec3 l\u00e0m gi\u1ea3i ph\u00f3ng c\u00e1c electron b\u1ecb m\u1eafc k\u1eb9t trong v\u00e0nh \u0111ai Van Allen: “Nh\u1eefng electron n\u00e0y \u0111\u01b0\u1ee3c chuy\u1ec3n h\u01b0\u1edbng \u0111\u1ec3 \u0111i v\u00e0o th\u01b0\u1ee3ng t\u1ea7ng kh\u00ed quy\u1ec3n, va ch\u1ea1m v\u1edbi c\u00e1c nguy\u00ean t\u1eed – ph\u00e2n t\u1eed c\u1ee7a nit\u01a1 v\u00e0 oxy, sau \u0111\u00f3 t\u1ea1o ra c\u00e1c b\u1ee9c x\u1ea1 th\u1ee9 c\u1ea5p v\u00e0 c\u00f3 kh\u1ea3 n\u0103ng l\u00e0 d\u01b0\u1edbi d\u1ea1ng c\u00e1c tia gamma\u201d.<\/p>\n

Hi\u1ec7n nay, c\u00e1c quy \u0111\u1ecbnh v\u1ec1 an to\u00e0n b\u1ee9c x\u1ea1 trong h\u00e0ng kh\u00f4ng t\u1ea1i M\u1ef9 c\u0169ng nh\u01b0 c\u00e1c qu\u1ed1c gia kh\u00e1c v\u1eabn ch\u01b0a c\u00f3, nh\u01b0ng Tobiska cho r\u1eb1ng nh\u1eefng ti\u00eau chu\u1ea9n c\u00f3 th\u1ec3 s\u1ebd \u0111\u01b0\u1ee3c \u0111\u1eb7t ra trong v\u00e0i n\u0103m t\u1edbi. M\u1eb7c d\u00f9 c\u00e1c nguy c\u01a1 c\u1ee7a b\u1ee9c x\u1ea1 n\u00e0y \u0111\u1ebfn s\u1ee9c kh\u1ecfe con ng\u01b0\u1eddi kh\u00e1 th\u1ea5p, ch\u1eb3ng h\u1ea1n x\u00e1c su\u1ea5t b\u1ecb ung th\u01b0 m\u1ed7i l\u1ea7n ch\u1ee5p X-quang ch\u1ec9 l\u00e0 1\/200.000, nh\u01b0ng v\u1edbi vi\u1ec7c tham gia nhi\u1ec1u chuy\u1ebfn bay, v\u1eabn c\u1ea7n ph\u1ea3i c\u00f3 nh\u1eefng gi\u1ea3i ph\u00e1p \u0111\u1ec1 ph\u00f2ng nh\u1eb1m h\u1ea1n ch\u1ebf r\u1ee7i ro. \u201cVi\u1ec7c n\u00e0y ch\u1ee7 y\u1ebfu l\u00e0 d\u00e0nh cho c\u00e1c th\u00e0nh vi\u00ean c\u1ee7a phi h\u00e0nh \u0111o\u00e0n\u201d, theo \u00f4ng Tobiska.<\/p>\n

Hi\u1ec7n t\u1ea1i, ARMAS \u0111ang s\u1eed d\u1ee5ng d\u1eef li\u1ec7u thu \u0111\u01b0\u1ee3c t\u1eeb v\u1ec7 tinh v\u00e0 c\u00e1c c\u1ea3m bi\u1ebfn trong kh\u00f4ng kh\u00ed \u0111\u1ec3 theo d\u00f5i c\u00e1c “\u0111\u00e1m m\u00e2y\u201d b\u1ee9c x\u1ea1. Tobiska cho r\u1eb1ng trong t\u01b0\u01a1ng lai, c\u00e1c chuy\u1ebfn bay c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c chuy\u1ec3n h\u01b0\u1edbng ho\u1eb7c duy tr\u00ec \u1edf m\u1ed9t \u0111\u1ed9 cao th\u1ea5p h\u01a1n \u0111\u1ec3 tr\u00e1nh ch\u00fang khi c\u1ea7n thi\u1ebft.<\/p>\n

Tham kh\u1ea3o: NewScientist\u200b<\/em><\/p>\n

tinhte.vn<\/em><\/p>\n","protected":false},"excerpt":{"rendered":"

Nh\u1eefng v\u00f9ng nguy hi\u1ec3m tr\u00ean kh\u00f4ng, n\u01a1i m\u1ee9c \u0111\u1ed9 b\u1ee9c x\u1ea1 cao v\u1ed1n l\u00e0 kh\u00e1i ni\u1ec7m ch\u01b0a \u0111\u01b0\u1ee3c c\u00f4ng nh\u1eadn. Tuy nhi\u00ean, m\u00e1y bay ch\u1edf kh\u00e1ch trong t\u01b0\u01a1ng lai c\u00f3 th\u1ec3 s\u1ebd ph\u1ea3i tr\u00e1nh kh\u00f4ng bay v\u00e0o nh\u1eefng v\u00f9ng nh\u01b0 th\u1ebf n\u00e0y, t\u01b0\u01a1ng t\u1ef1 nh\u01b0 nh\u1eefng g\u00ec \u0111\u00e3 th\u1ef1c hi\u1ec7n v\u1edbi c\u00e1c \u0111\u00e1m m\u00e2y tro […]<\/p>\n","protected":false},"author":17,"featured_media":6343,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[47],"tags":[],"class_list":["post-6053","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-tin-tuc"],"_links":{"self":[{"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/posts\/6053","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/users\/17"}],"replies":[{"embeddable":true,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/comments?post=6053"}],"version-history":[{"count":2,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/posts\/6053\/revisions"}],"predecessor-version":[{"id":6380,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/posts\/6053\/revisions\/6380"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/media\/6343"}],"wp:attachment":[{"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/media?parent=6053"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/categories?post=6053"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/tags?post=6053"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}