Video: Dab tsi yog cov txiaj ntsig lom ntawm hluav taws xob?
2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
Teeb meem lom ntawm Raug rau Hluav taws xob . Hluav taws xob tuaj yeem tsim kev puas tsuaj rau tag nrho lub cev (somatic puas tsuaj) lossis qe thiab phev (kev puas tsuaj ntawm caj ces). Nws teebmeem Nws muaj ntau tshaj tawm nyob rau hauv cov hlwb uas rov tsim dua sai, xws li lub plab hauv ob sab phlu, cov hauv paus plaub hau, pob txha pob txha, thiab embryos.
Tom qab ntawd, ib tug kuj yuav nug, dab tsi yog cov teebmeem lom?
Cov teebmeem lom . Qhov tshwm sim ntawm kev noj qab haus huv tshwj xeeb teebmeem los ntawm kev cuam tshuam rau hluav taws xob ionizing yog txoj haujlwm nyuaj ntawm ntau yam xws li: Hom hluav taws xob koom nrog. Txhua yam ionizing hluav taws xob tuaj yeem tsim kev noj qab haus huv teebmeem.
Ib yam li ntawd, qhov kev pheej hmoo ntawm kev puas tsuaj lom los ntawm hluav taws xob nyob ntawm seb dab tsi? Tus nqi ntawm hluav taws xob tau txais lub cev yog ib qho tseem ceeb heev rau kev txiav txim siab nws lom nyhuv. Qhov ntau dua qhov nyiaj ntawm ionizing hluav taws xob thiab qhov ntau dua tus naj npawb ntawm lub cev yog raug, ntau dua kev noj qab haus huv pheej hmoo yog tias koob tshuaj yog siab.
Ntxiv mus, dab tsi yog qhov cuam tshuam ntawm hluav taws xob rau tib neeg lub cev?
Tshaj tawm rau qib siab heev ntawm hluav taws xob , xws li ze rau qhov tawg atomic, tuaj yeem ua rau mob hnyav teebmeem kev noj qab haus huv xws li tawv nqaij kub hnyiab thiab mob hluav taws xob cov tsos mob (" hluav taws xob mob "). Nws kuj tseem tuaj yeem ua rau lub sijhawm ntev teebmeem kev noj qab haus huv xws li mob qog noj ntshav thiab kab mob plawv.
Dab tsi yog cov koog uas piav qhia txog kev cuam tshuam lom ntawm ntau hom hluav taws xob?
Peb siv ob peb chav ntsuas ntsuas hluav taws xob: becquerels lossis curies rau tus nqi ntawm cov tshuaj tawg tawg; grey los yog rads rau zog nqus tau; thiab rems lossis sieverts rau cov teebmeem lom ntawm hluav taws xob. Kev raug hluav taws xob tuaj yeem ua rau muaj ntau yam teebmeem kev noj qab haus huv, txij li menyuam yaus mus rau qhov hnyav, thiab suav nrog kev tuag.
Pom zoo:
Tus kws saib xyuas hluav taws xob hluav taws xob ua dab tsi?
Cov kws saib xyuas hluav taws xob oncology tau qhia tshwj xeeb hauv kev kho hluav taws xob thiab ua haujlwm ze nrog koj tus kws kho hluav taws xob hluav taws xob. Ib feem ntawm lawv lub luag haujlwm yog los tshuaj xyuas koj li cas thiab pab koj daws qhov kev hloov pauv hauv koj txoj kev kho mob. Lawv yuav piav qhia thiab pab koj los tswj cov kev mob tshwm sim
Thaum twg yog siv hluav taws xob hluav taws xob thawj zaug?
Keeb kwm ntawm kev siv hluav taws xob hluav taws xob pib nrog Wilhelm Roentgen xyoo 1895. Wilhelm muaj peev xwm ua thawj xoo hluav taws xob, uas yog nws tus poj niam thiab yeej qhov khoom plig Nobel hauv kev siv tshuaj hauv xyoo 1901 vim nws qhov kev tshawb pom tshiab
Dab tsi yog qhov txiaj ntsig ib txwm rau PaO 2 Dab tsi yog qhov txiaj ntsig rau kev txiav txim siab qhov hnyav ntawm hypoxemia?
Zoo li feem ntau qhov kev kho mob ib txwm muaj txiaj ntsig thiab ntau yam, lub ntsiab lus tuaj yeem sib txawv me ntsis, tab sis feem ntau cov ntsiab lus hauv qab no siv: Ua rau me me hypoxemia: PaO2 = 60 txog 79 mmHg. Qhov nruab nrab hypoxemia: PaO2 = 40 txog 59 mmHg. Hypoxemia hnyav: PaO2 <40 mmHg
Puas yog koj siv hluav taws xob tom qab kev kho hluav taws xob?
Qee cov neeg mob qog noj ntshav uas tau txais kev kho hluav taws xob txhawj xeeb tias lawv lub cev yuav dhau los ua "xov tooj cua" tom qab lawv tau txais kev kho hluav taws xob. "Kev siv hluav taws xob me me tuaj yeem siv tau txhua hnub nyob rau ib lub sijhawm txij li ob peb hnub mus rau ntau lub lis piam
Puas yog hluav taws xob hluav taws xob tsis yog ionizing?
Tsis-ionizing (lossis tsis-ionising) hluav taws xob yog hais txog txhua hom hluav taws xob hluav taws xob uas tsis muaj lub zog txaus rau quantum (photon zog) rau ionize atoms lossis molecules - uas yog, kom tshem tawm cov hluav taws xob los ntawm lub atom lossis molecule