Nghi\u00ean c\u1ee9u nh\u1eb1m \u0111\u00e1nh gi\u00e1 hi\u1ec7u \u1ee9ng chi\u1ebfu x\u1ea1 tia gamma ngu\u1ed3n Co60 \u0111\u1ed1i v\u1edbi m\u1ed9t s\u1ed1 m\u1eabu gi\u1ed1ng l\u00faa \u0111\u1ecba ph\u01b0\u01a1ng v\u00e0 nh\u1eadp n\u1ed9i. Th\u00ed nghi\u1ec7m \u0111\u01b0\u1ee3c b\u1ed1 tr\u00ed 3 li\u1ec1u l\u01b0\u1ee3ng (200Gy, 300Gy v\u00e0 400Gy) \u0111\u1ec3 x\u1eed l\u00fd cho 3 m\u1eabu gi\u1ed1ng l\u00faa (\u0111\u1ed9 \u1ea9m h\u1ea1t 12%). K\u1ebft qu\u1ea3 \u0111\u00e1nh gi\u00e1 cho th\u1ea5y \u1edf th\u1ebf h\u1ec7 M1, t\u1ec9 l\u1ec7 n\u1ea3y m\u1ea7m v\u00e0 t\u1ec9 l\u1ec7 s\u1ed1ng s\u00f3t c\u1ee7a c\u00e1c m\u1eabu gi\u1ed1ng l\u00faa \u0111\u1ec1u gi\u1ea3m khi t\u0103ng li\u1ec1u l\u01b0\u1ee3ng chi\u1ebfu x\u1ea1. Th\u1eddi gian sinh tr\u01b0\u1edfng ng\u1eafn, th\u1ea5p c\u00e2y, l\u00e1 \u0111\u00f2ng \u0111\u1ee9ng, \u0111\u1ebb nh\u00e1nh kh\u00e1, xu\u1ea5t hi\u1ec7n v\u1edbi t\u1ea7n su\u1ea5t \u0111\u1ed9t bi\u1ebfn cao \u1edf li\u1ec1u l\u01b0\u1ee3ng chi\u1ebfu x\u1ea1 200Gy, 300Gy tr\u00ean m\u1eabu gi\u1ed1ng l\u00faa nh\u1eadp n\u1ed9i NN1, NN3 \u1edf th\u1ebf h\u1ec7 M2. \u0110\u1ed9t bi\u1ebfn xu\u1ea5t hi\u1ec7n v\u1edbi t\u1ea7n su\u1ea5t r\u1ea5t th\u1ea5p khi chi\u1ebfu x\u1ea1 gi\u1ed1ng l\u00faa \u0111\u1ecba ph\u01b0\u01a1ng Kh\u1ea9u Mang. Ch\u1ecdn l\u1ecdc t\u1ea1i th\u1ebf h\u1ec7 M3 \u1edf li\u1ec1u l\u01b0\u1ee3ng 200Gy v\u00e0 300Gy tr\u00ean m\u1eabu gi\u1ed1ng l\u00faa nh\u1eadp n\u1ed9i NN1 v\u00e0 NN3 thu \u0111\u01b0\u1ee3c m\u1ed9t s\u1ed1 d\u00f2ng tri\u1ec3n v\u1ecdng c\u00f3 th\u1eddi gian sinh tr\u01b0\u1edfng ng\u1eafn, th\u1ea5p c\u00e2y, l\u00e1 \u0111\u00f2ng \u0111\u1ee9ng v\u00e0 \u0111\u1ebb nh\u00e1nh kh\u00e1. Nh\u01b0 v\u1eady, khi chi\u1ebfu tia gamma Co60 v\u1edbi li\u1ec1u l\u01b0\u1ee3ng chi\u1ebfu x\u1ea1 200-300Gy tr\u00ean h\u1ea1t l\u00faa kh\u00f4 c\u00f3 th\u1ec3 c\u1ea3i t\u1ea1o m\u1ed9t s\u1ed1 \u0111\u1eb7c \u0111i\u1ec3m n\u00f4ng h\u1ecdc nh\u01b0 th\u1eddi gian sinh tr\u01b0\u1edfng, chi\u1ec1u cao c\u00e2y, ki\u1ec3u l\u00e1 \u0111\u00f2ng, kh\u1ea3 n\u0103ng \u0111\u1ebb nh\u00e1nh c\u1ee7a hai gi\u1ed1ng l\u00faa nh\u1eadp n\u1ed9i NN1, NN3. <\/p>\n\n\n\n
T\u1eeb kh\u00f3a:<\/strong> M\u1eabu gi\u1ed1ng l\u00faa nh\u1eadp n\u1ed9i, m\u1eabu gi\u1ed1ng l\u00faa \u0111\u1ecba ph\u01b0\u01a1ng, \u0111\u1ed9t bi\u1ebfn, hi\u1ec7u \u1ee9ng chi\u1ebfu x\u1ea1, tia gamma Co60 . <\/p>\n\n\n\n