{"id":6276,"date":"2020-05-22T18:50:34","date_gmt":"2020-05-22T11:50:34","guid":{"rendered":"https:\/\/bacdau.vn\/?post_type=kb&p=6276"},"modified":"2020-05-22T18:50:34","modified_gmt":"2020-05-22T11:50:34","slug":"tia-x-nhung-dieu-ban-chua-biet-den","status":"publish","type":"kb","link":"https:\/\/bacdau.vn\/kb\/tia-x-nhung-dieu-ban-chua-biet-den\/","title":{"rendered":"Tia X – Nh\u1eefng \u0111i\u1ec1u b\u1ea1n ch\u01b0a bi\u1ebft \u0111\u1ebfn"},"content":{"rendered":"

\u0110\u01b0\u1ee3c bi\u1ebft \u0111\u1ebfn l\u00e0 m\u1ed9t trong nh\u1eefng ph\u00e1t hi\u1ec7n quan tr\u1ecdng trong l\u1ecbch s\u1eed y h\u1ecdc hi\u1ec7n \u0111\u1ea1i, vi\u1ec7c ph\u00e1t minh ra tia X v\u00e0 ph\u01b0\u01a1ng ph\u00e1p ch\u1ee5p X-quang<\/a> <\/strong>\u0111\u00e3 mang l\u1ea1i nh\u1eefng \u1ee9ng d\u1ee5ng tuy\u1ec7t v\u1eddi gi\u00fap ph\u00e1t hi\u1ec7n v\u00e0 h\u1ed7 tr\u1ee3 ch\u1ea9n \u0111o\u00e1n, \u0111i\u1ec1u tr\u1ecb b\u1ec7nh \u0111\u1ea1t hi\u1ec7u qu\u1ea3 v\u00e0 \u0111\u1ed9 ch\u00ednh x\u00e1c cao. Tuy nhi\u00ean tia X c\u0169ng c\u00f3 nh\u1eefng t\u00e1c h\u1ea1i \u1ea3nh h\u01b0\u1edfng tr\u1ef1c ti\u1ebfp \u0111\u1ebfn c\u01a1 th\u1ec3 con ng\u01b0\u1eddi. H\u00f4m nay ch\u00fang ta h\u00e3y c\u00f9ng t\u00ecm hi\u1ec3u k\u0129 h\u01a1n v\u1ec1 tia X nh\u00e9!<\/p>\n

\"\"<\/p>\n

    \n
  1. \n

    B\u1ea1n bi\u1ebft g\u00ec v\u1ec1 tia X?<\/h2>\n<\/li>\n<\/ol>\n

    – \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0Kh\u00e1i ni\u1ec7m, b\u1ea3n ch\u1ea5t tia X<\/h3>\n

    Tia X h\u00e3y c\u00f2n \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 X-ray hay b\u1ee9c x\u1ea1 X l\u00e0 m\u1ed9t d\u1ea1ng s\u00f3ng \u0111i\u1ec7n t\u1eeb.<\/p>\n

    H\u1ea7u h\u1ebft tia X c\u00f3 d\u1ea3i b\u01b0\u1edbc s\u00f3ng trong kho\u1ea3ng t\u1eeb 0,01 \u0111\u1ebfn 10 nano m\u00e9t t\u01b0\u01a1ng \u1ee9ng v\u1edbi d\u00e3y t\u1ea7n s\u1ed1 t\u1eeb 30 Petahertz \u0111\u1ebfn 30 Exahertz (3\u00d71016 Hz to 3\u00d71019 Hz) v\u00e0 c\u00f3 n\u0103ng l\u01b0\u1ee3ng t\u1eeb 120 eV \u0111\u1ebfn 120 keV. B\u01b0\u1edbc s\u00f3ng c\u1ee7a n\u00f3 ng\u1eafn h\u01a1n tia t\u1eed ngo\u1ea1i nh\u01b0ng d\u00e0i h\u01a1n tia gamma.<\/p>\n

    B\u1ea3n ch\u1ea5t, tia X l\u00e0 s\u00f3ng \u0111i\u1ec7n t\u1eeb c\u00f3 b\u01b0\u1edbc s\u00f3ng ng\u1eafn h\u01a1n b\u01b0\u1edbc s\u00f3ng c\u1ee7a tia t\u1eed ngo\u1ea1i.<\/p>\n

    \"\"
    CH\u01afA C\u00d3 B\u1eb0NG CH\u1ee8NG TIA X L\u00c0 NGUY\u00caN NH\u00c2N UNG TH\u01af<\/figcaption><\/figure>\n

    – \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0T\u00ednh ch\u1ea5t c\u1ee7a tia X:<\/h3>\n

    Tia X c\u00f3 kh\u1ea3 n\u0103ng \u0111\u00e2m xuy\u00ean l\u1edbn (d\u1ec5 d\u00e0ng \u0111i qua c\u00e1c v\u1eadt li\u1ec7u nh\u01b0 g\u1ed7, da, v\u1ea3i m\u1ec1m, c\u00e1c m\u00f4 m\u1ec1m, t\u1ea5m nh\u00f4m\u2026) B\u01b0\u1edbc s\u00f3ng c\u00e0ng ng\u1eafn th\u00ec \u0111\u1ed9 \u0111am xuy\u00ean c\u00e0ng l\u1edbn (ta g\u1ecdi l\u00e0 c\u00e0ng c\u1ee9ng).<\/p>\n

    L\u00e0m \u0111en k\u00ednh \u1ea3nh (ch\u1ee5p Xquang), l\u00e0m ph\u00e1t quang m\u1ed9t s\u1ed1 ch\u1ea5t, l\u00e0m ion h\u00f3a kh\u00f4ng kh\u00ed, c\u00f3 t\u00e1c d\u1ee5ng sinh l\u00fd \u1ea3nh h\u01b0\u1edfng tr\u1ef1c ti\u1ebfp \u0111\u1ebfn c\u01a1 th\u1ec3 con ng\u01b0\u1eddi (c\u1ea3 c\u00f3 l\u1ee3i \u0111\u1ebfn c\u00f3 h\u1ea1i)<\/p>\n

    – \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0C\u00e1ch t\u1ea1o ra tia X: \u0110\u1ec3 t\u1ea1o ra tia X c\u00e1c nh\u00e0 v\u1eadt l\u00fd s\u1eed d\u1ee5ng m\u1ed9t d\u1ee5ng c\u1ee5 mang t\u00ean \u1ed1ng Coolidge (Cu-l\u00edt-gi\u01a1) \u0111\u1eb7t theo t\u00ean nh\u00e0 v\u1eadt l\u00fd Coolidge: L\u00e0 m\u1ed9t \u1ed1ng th\u1ee7y tinh b\u00ean trong l\u00e0 ch\u00e2n kh\u00f4ng, g\u1ed3m m\u1ed9t d\u00e2y nung FF\u2019 b\u1eb1ng vonfram v\u00e0 hai \u0111i\u1ec7n c\u1ef1c.<\/p>\n

    \"\"
    Tia X c\u00f3 t\u00e1c \u0111\u1ed9ng th\u1ebf n\u00e0o \u0111\u1ebfn c\u01a1 th\u1ec3 con ng\u01b0\u1eddi?<\/figcaption><\/figure>\n
      \n
    1. \n

      Ph\u00e1t hi\u1ec7n quan tr\u1ecdng c\u1ee7a l\u1ecbch s\u1eed \u0111\u1ebfn t\u1eeb s\u1ef1 ng\u1eabu nhi\u00ean!<\/h2>\n<\/li>\n<\/ol>\n

      C\u1ed9ng \u0111\u1ed3ng khoa h\u1ecdc v\u00e0 y khoa th\u1ebf gi\u1edbi s\u1ebd m\u00e3i mang \u01a1n kh\u00e1m ph\u00e1 t\u00ecnh c\u1edd c\u1ee7a nh\u00e0 v\u1eadt l\u00fd ng\u01b0\u1eddi \u0110\u1ee9c, Wilhelm Conrad R\u00f6ntgen (\u1edf Vi\u1ec7t Nam th\u01b0\u1eddng \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 R\u01a1nghen) v\u00e0o ng\u00e0y 8\/11\/1895.<\/p>\n

      \"\"\"\"<\/p>\n

      Nh\u00e0 v\u1eadt l\u00fd h\u1ecdc ng\u01b0\u1eddi \u0110\u1ee9c t\u00ean l\u00e0 Wilhelm Roentgen khi \u00f4ng \u0111ang loay hoay t\u00ecm c\u00e1ch s\u1eeda ch\u1eefa l\u1ea1i thi\u1ebft b\u1ecb ca t\u1ed1t c\u1ee7a m\u00ecnh. Khi \u0111\u00f3, Roentgen \u0111\u00e3 \u0111\u1eb7t nh\u1eefng v\u1eadt th\u1ec3 kh\u00e1c nhau tr\u01b0\u1edbc m\u1ed9t thi\u1ebft b\u1ecb do \u00f4ng ch\u1ebf t\u1ea1o \u0111\u1ec3 \u0111o m\u1ee9c \u0111\u1ed9 hi\u1ec3n th\u1ecb h\u00ecnh \u1ea3nh c\u1ee7a ch\u00fang l\u00ean c\u00e1c t\u1ea5m phim.<\/p>\n

      B\u1ea5t ch\u1ee3t, Roentgen n\u1ea3y ra \u00fd t\u01b0\u1edfng m\u1edbi, \u00f4ng mu\u1ed1n xem b\u00e0n tay c\u1ee7a v\u1ee3 \u00f4ng tr\u00f4ng s\u1ebd ra sao khi ti\u1ebfp x\u00fac v\u1edbi nh\u1eefng tia s\u00e1ng b\u00ed \u1ea9n n\u00e0y. K\u1ebft qu\u1ea3 l\u00e0 t\u1ea5m phim ghi l\u1ea1i \u0111\u01b0\u1ee3c h\u00ecnh \u1ea3nh to\u00e0n b\u1ed9 c\u1ea5u t\u1ea1o x\u01b0\u01a1ng v\u00e0 c\u01a1 c\u1ee7a b\u00e0n tay gi\u1ed1ng nh\u01b0 h\u00ecnh \u1ea3nh m\u00e0 ch\u00fang ta nh\u00ecn th\u1ea5y trong c\u00e1c t\u1ea5m phim ch\u1ee5p X-quang ng\u00e0y nay.<\/p>\n

      Ng\u1ea1c nhi\u00ean tr\u01b0\u1edbc nh\u1eefng g\u00ec thu \u0111\u01b0\u1ee3c, Roentgen \u0111\u00e3 c\u00f4ng b\u1ed1 k\u1ebft qu\u1ea3 ph\u00e1t hi\u1ec7n c\u1ee7a m\u00ecnh v\u00e0 ph\u01b0\u01a1ng ph\u00e1p ch\u1ee5p X-quang nhanh ch\u00f3ng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i trong c\u00e1c l\u0129nh v\u1ef1c: t\u1eeb y h\u1ecdc, trong ph\u00e1t hi\u1ec7n b\u1ec7nh v\u00e0 c\u00e1c ch\u1ea5n th\u01b0\u01a1ng b\u00ean trong c\u01a1 th\u1ec3, cho t\u1edbi vi\u1ec7c \u1ee9ng d\u1ee5ng trong ki\u1ec3m tra \u0111\u1ed3 \u0111\u1ea1c, h\u00e0nh l\u00fd t\u1ea1i c\u00e1c s\u00e2n bay\u2026<\/p>\n

      Nh\u00ecn chung, tia X \u0111\u00e3 t\u1ea1o n\u00ean m\u1ed9t cu\u1ed9c c\u00e1ch m\u1ea1ng trong l\u0129nh v\u1ef1c y h\u1ecdc. V\u1edbi vi\u1ec7c ph\u00e1t hi\u1ec7n ra tia X, Roentgen \u0111\u00e3 \u0111\u01b0\u1ee3c trao gi\u1ea3i th\u01b0\u1edfng Nobel cho ph\u00e1t hi\u1ec7n c\u1ee7a m\u00ecnh.<\/p>\n

        \n
      1. \n

        \u00a0\u00a0\u00a0\u00a0Nh\u1eefng \u0111i\u1ec1u b\u1ea1n ch\u01b0a bi\u1ebft v\u1ec1 tia X<\/h2>\n<\/li>\n<\/ol>\n

        – \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u1ee8ng d\u1ee5ng c\u1ee7a tia X:<\/h3>\n

        Kh\u00f4ng ch\u1ec9 mang l\u1ea1i gi\u00e1 tr\u1ecb \u1ee9ng d\u1ee5ng l\u1edbn trong y h\u1ecdc, tia X c\u00f2n \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong vi\u1ec7c ki\u1ec3m tra an ninh t\u1ea1i c\u00e1c s\u00e2n bay. T\u1ea1i M\u1ef9, trong nhi\u1ec1u n\u0103m tr\u1edf l\u1ea1i \u0111\u00e2y, thi\u1ebft b\u1ecb qu\u00e9t X-quang \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng nh\u1eb1m ph\u00e1t hi\u1ec7n v\u0169 kh\u00ed v\u00e0 nh\u1eefng \u0111\u1ed3 v\u1eadt nguy hi\u1ec3m kh\u00f4ng \u0111\u01b0\u1ee3c ph\u00e9p mang l\u00ean m\u00e1y bay. Tia X c\u00f3 th\u1ec3 cho k\u1ebft qu\u1ea3 ph\u00e1t hi\u1ec7n c\u00e1c \u0111\u1ed3 v\u1eadt b\u1eb1ng kim lo\u1ea1i ch\u00ednh x\u00e1c.<\/p>\n

        B\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng thi\u1ebft b\u1ecb gia t\u1ed1c ph\u00e2n t\u1eed l\u00e0m t\u0103ng t\u1ed1c \u0111\u1ed9 chuy\u1ec3n \u0111\u1ed9ng c\u1ee7a c\u00e1c electron \u0111\u1ea1t m\u1ee9c t\u1ed1c \u0111\u1ed9 c\u1ee7a \u00e1nh s\u00e1ng cho t\u1edbi khi ch\u00fang ph\u00e1t ra c\u00e1c tia ph\u00f3ng x\u1ea1. C\u0169ng b\u1eb1ng c\u00e1ch chi\u1ebfu tia X n\u00e0y, c\u00e1c nh\u00e0 khoa h\u1ecdc c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng \u0111\u1ec3 ki\u1ec3m tra c\u1ea5u tr\u00fac nguy\u00ean t\u1eed c\u1ee7a c\u00e1c lo\u1ea1i v\u1eadt li\u1ec7u, k\u1ec3 c\u1ea3 ch\u1ea5t li\u1ec7u nh\u00e2n t\u1ea1o v\u00e0 v\u1eadt li\u1ec7u t\u1ef1 nhi\u00ean.<\/p>\n

        \"\"
        Ch\u1ee5p X quang l\u00e0 g\u00ec: T\u1ea5t c\u1ea3 nh\u1eefng \u0111i\u1ec1u c\u1ea7n bi\u1ebft<\/figcaption><\/figure>\n

        – \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0Nh\u1eefng t\u00e1c h\u1ea1i tr\u1ef1c ti\u1ebfp t\u1edbi c\u01a1 th\u1ec3 con ng\u01b0\u1eddi<\/h3>\n
          \n
        1. \u1ea2nh h\u01b0\u1edfng tr\u1ef1c ti\u1ebfp t\u1edbi da:<\/strong> Nh\u1eefng b\u1ee9c x\u1ea1 do tia X g\u00e2y ra t\u1ed5n th\u01b0\u01a1ng c\u1ee5c b\u1ed9 cho da v\u00e0 c\u00e1c m\u00f4 d\u01b0\u1edbi da. Bi\u1ec3u hi\u1ec7n \u0111\u1ea7u ti\u00ean d\u1ec5 th\u1ea5y nh\u1ea5t l\u00e0 nh\u1eefng v\u1ebft \u0111\u1ecf tr\u00ean da c\u00f2n \u0111\u01b0\u1ee3c g\u1ecdi v\u1edbi t\u00ean kh\u00e1c l\u00e0 erythema. Nh\u1eefng v\u1ebft \u0111\u1ecf \u0111\u00f3 xu\u1ea5t hi\u1ec7n sau khi chi\u1ebfu v\u00e0i gi\u1edd v\u00e0 s\u1eabm l\u1ea1i sau \u0111\u00f3 v\u00e0i ng\u00e0y, kh\u00f4ng \u0111\u1ec3 l\u1ea1i h\u1eadu qu\u1ea3 l\u00e2u d\u00e0i.<\/li>\n
        2. \u1ea2nh h\u01b0\u1edfng t\u1edbi s\u1ee9c kh\u1ecfe thai nhi<\/strong>: Theo m\u1ed9t s\u1ed1 nghi\u00ean c\u1ee9u, tia X c\u00f3 \u1ea3nh h\u01b0\u1edfng t\u1edbi thai nhi. Khi ch\u1ee5p X-quang b\u1ee5ng trong khi mang thai, thai nhi s\u1ebd ti\u1ebfp x\u00fac v\u1edbi b\u1ee9c x\u1ea1. N\u1ebfu c\u00e1c b\u1ee9c x\u1ea1 g\u00e2y ra nh\u1eefng thay \u0111\u1ed5i khi\u1ebfn c\u00e1c t\u1ebf b\u00e0o c\u1ee7a b\u00e9 ph\u00e1t tri\u1ec3n nhanh ch\u00f3ng, b\u00e9 c\u00f3 th\u1ec3 c\u00f3 nguy c\u01a1 cao h\u01a1n m\u1eafc khuy\u1ebft t\u1eadt, d\u1ecb d\u1ea1ng ho\u1eb7c b\u1ec7nh t\u1eadt, ch\u1eb3ng h\u1ea1n nh\u01b0 b\u1ec7nh b\u1ea1ch c\u1ea7u.<\/li>\n
        3. \u1ea2nh h\u01b0\u1edfng nhi\u1ec1u b\u1ed9 ph\u1eadn tr\u00ean c\u01a1 th\u1ec3:<\/strong> Nh\u1eefng tr\u01b0\u1eddng h\u1ee3p ph\u1ea3i ch\u1ee5p tia X qu\u00e1 nhi\u1ec1u v\u1edbi c\u01b0\u1eddng \u0111\u1ed9 m\u1ea1nh c\u00f2n t\u00e1c \u0111\u1ed9ng \u0111\u1ebfn c\u00e1c c\u01a1 quan kh\u00e1c c\u1ee7a c\u01a1 th\u1ec3 nh\u01b0: M\u1eaft: \u0111\u1ee5c th\u1ee7y tinh th\u1ec3.<\/li>\n
        4. Tim m\u1ea1ch<\/strong>: L\u00e0m h\u1ee7y ho\u1ea1i tr\u1ef1c ti\u1ebfp \u0111\u1ebfn c\u00e1c m\u1ea1ch m\u00e1u nh\u1ecf, c\u00f3 th\u1ec3 g\u00e2y suy tim v\u00e0 t\u1eed vong.<\/li>\n
        5. Sinh d\u1ee5c:<\/strong> Suy tho\u00e1i ti\u1ec1n li\u1ec7t tuy\u1ebfn, tinh ho\u00e0n, bu\u1ed3ng tr\u1ee9ng, ung th\u01b0 v\u00fa.<\/li>\n
        6. T\u1ee7y x\u01b0\u01a1ng: <\/strong>\u1ea2nh h\u01b0\u1edfng tr\u1ef1c ti\u1ebfp t\u1edbi t\u1ee7y x\u01b0\u01a1ng n\u01a1i s\u1ea3n xu\u1ea5t ra c\u00e1c t\u1ebf b\u00e0o m\u00e1u d\u1eabn t\u1edbi nguy c\u01a1 m\u1eafc c\u00e1c b\u1ec7nh nh\u01b0 m\u00e1u tr\u1eafng, ung th\u01b0 m\u00e1u<\/li>\n
        7. Ni\u00eam m\u1ea1c ru\u1ed9t<\/strong>: ti\u00eau ch\u1ea3y, s\u1ee5t c\u00e2n<\/li>\n
        8. Huy\u1ebft h\u1ecdc v\u00e0 mi\u1ec5n d\u1ecbch:<\/strong> S\u1ed1 l\u01b0\u1ee3ng t\u1ebf b\u00e0o lympho c\u1ee7a m\u00e1u s\u1ebd gi\u1ea3m \u0111i, d\u1ec5 b\u1ecb nhi\u1ec5m tr\u00f9ng h\u01a1n.<\/li>\n
        9. Gi\u1ea3m s\u1ee9c \u0111\u1ec1 kh\u00e1ng c\u1ee7a c\u01a1 th\u1ec3<\/strong><\/li>\n
        10. C\u00f3 kh\u1ea3 n\u0103ng g\u00e2y ung th\u01b0<\/strong><\/li>\n
        11. B\u1ee9c x\u1ea1 ion h\u00f3a c\u1ee7a tia X g\u00e2y \u0111\u1ee9t g\u00e3y ADN.<\/strong> Khi nh\u1eefng t\u1ebf b\u00e0o b\u1ecb t\u1ed5n th\u01b0\u01a1ng do tia X g\u00e2y ra ph\u00e2n chia v\u00e0 nh\u00e2n l\u00ean, nh\u1eefng t\u1ed5n th\u01b0\u01a1ng kh\u00f4ng \u0111\u01b0\u1ee3c s\u1eeda ch\u1eefa c\u0169ng nh\u00e2n l\u00ean theo. M\u1ed9t s\u1ed1 nh\u00e0 khoa h\u1ecdc \u0111\u00e3 c\u1ed1 t\u00ecnh chi\u1ebfu x\u1ea1 l\u00ean tay h\u1ecd \u0111\u1ec3 nghi\u00ean c\u1ee9u v\u00e0 th\u1ea5y r\u1eb1ng, tia X c\u00f3 th\u1ec3 g\u00e2y b\u1ecfng ho\u1eb7c ch\u00e1y da v\u00e0i tu\u1ea7n sau khi ti\u1ebfp x\u00fac, n\u1ebfu c\u01b0\u1eddng \u0111\u1ed9 m\u1ea1nh g\u00e2y ra c\u00e1c v\u1ebft lo\u00e9t v\u00e0 kh\u00f3 ph\u1ee5c h\u1ed3i. C\u00e1c t\u1ebf b\u00e0o ung th\u01b0 c\u0169ng c\u00f3 th\u1ec3 ph\u00e1t tri\u1ec3n t\u1eeb c\u00e1c m\u00f4 da \u0111\u00e3 \u0111\u01b0\u1ee3c ch\u1eefa l\u00e0nh.<\/em><\/li>\n<\/ol>\n
          \"\"
          \u1ea2nh h\u01b0\u1edfng c\u1ee7a tia X l\u00ean thai nhi<\/figcaption><\/figure>\n

          \u00a0\u00a0\u00a0\u00a0L\u1eddi k\u1ebft:<\/h2>\n

          Tia X l\u00e0 m\u1ed9t d\u1ea1ng b\u1ee9c x\u1ea1 n\u0103ng l\u01b0\u1ee3ng cao kh\u00f4ng nh\u00ecn th\u1ea5y \u0111\u01b0\u1ee3c b\u1eb1ng m\u1eaft th\u01b0\u1eddng. Lo\u1ea1i tia n\u00e0y c\u00f3 th\u1ec3 xuy\u00ean th\u1ea5u qua nhi\u1ec1u v\u1eadt th\u1ec3, \u0111\u1eb7c bi\u1ec7t l\u00e0 c\u00e1c v\u1eadt th\u1ec3 s\u1ed1ng. B\u1edfi th\u1ebf n\u00ean k\u1ef9 thu\u1eadt \u1ee9ng d\u1ee5ng c\u1ee7a tia X \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i trong nhi\u1ec1u l\u0129nh v\u1ef1c \u0111\u1eb7c bi\u1ec7t l\u00e0 y t\u1ebf. Nh\u01b0ng \u0111\u1ed3ng th\u1eddi, tia ph\u00f3ng x\u1ea1 n\u00e0y c\u0169ng mang r\u1ea5t nhi\u1ec1u nguy h\u1ea1i t\u1edbi c\u01a1 th\u1ec3 con ng\u01b0\u1eddi.<\/p>\n","protected":false},"excerpt":{"rendered":"

          Tia X l\u00e0 m\u1ed9t d\u1ea1ng b\u1ee9c x\u1ea1 n\u0103ng l\u01b0\u1ee3ng cao kh\u00f4ng nh\u00ecn th\u1ea5y \u0111\u01b0\u1ee3c b\u1eb1ng m\u1eaft th\u01b0\u1eddng. Lo\u1ea1i tia n\u00e0y c\u00f3 th\u1ec3 xuy\u00ean th\u1ea5u qua nhi\u1ec1u v\u1eadt th\u1ec3, \u0111\u1eb7c bi\u1ec7t l\u00e0 c\u00e1c v\u1eadt th\u1ec3 s\u1ed1ng. B\u1edfi th\u1ebf n\u00ean k\u1ef9 thu\u1eadt \u1ee9ng d\u1ee5ng c\u1ee7a tia X \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i trong nhi\u1ec1u l\u0129nh v\u1ef1c \u0111\u1eb7c bi\u1ec7t l\u00e0 y t\u1ebf. Nh\u01b0ng \u0111\u1ed3ng th\u1eddi, tia ph\u00f3ng x\u1ea1 n\u00e0y c\u0169ng mang r\u1ea5t nhi\u1ec1u nguy h\u1ea1i t\u1edbi c\u01a1 th\u1ec3 con ng\u01b0\u1eddi.<\/p>\n","protected":false},"author":1,"featured_media":6277,"comment_status":"open","ping_status":"closed","template":"","meta":{"site-sidebar-layout":"default","site-content-layout":"default","ast-site-content-layout":"","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""}}},"kbtopic":[764],"kbtag":[998],"_links":{"self":[{"href":"https:\/\/bacdau.vn\/wp-json\/wp\/v2\/kb\/6276"}],"collection":[{"href":"https:\/\/bacdau.vn\/wp-json\/wp\/v2\/kb"}],"about":[{"href":"https:\/\/bacdau.vn\/wp-json\/wp\/v2\/types\/kb"}],"author":[{"embeddable":true,"href":"https:\/\/bacdau.vn\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/bacdau.vn\/wp-json\/wp\/v2\/comments?post=6276"}],"version-history":[{"count":0,"href":"https:\/\/bacdau.vn\/wp-json\/wp\/v2\/kb\/6276\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/bacdau.vn\/wp-json\/wp\/v2\/media\/6277"}],"wp:attachment":[{"href":"https:\/\/bacdau.vn\/wp-json\/wp\/v2\/media?parent=6276"}],"wp:term":[{"taxonomy":"kbtopic","embeddable":true,"href":"https:\/\/bacdau.vn\/wp-json\/wp\/v2\/kbtopic?post=6276"},{"taxonomy":"kbtag","embeddable":true,"href":"https:\/\/bacdau.vn\/wp-json\/wp\/v2\/kbtag?post=6276"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}