Video: Kev kawm txog hluav taws xob yog dab tsi?
2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
Radiobiology (tseem hu ua hluav taws xob biology) yog ib thaj chaw kho mob thiab kev kho mob yooj yim uas koom nrog kawm ntawm kev ua ntawm ionizing hluav taws xob ntawm cov khoom muaj sia, tshwj xeeb tshaj yog cov teebmeem kev noj qab haus huv ntawm hluav taws xob . Cov tshuaj tswj tau siv rau kev kho mob thiab kho hluav taws xob.
Ib yam li ntawd, tej zaum koj yuav nug, qhov yooj yim txhais ntawm hluav taws xob yog dab tsi?
Hauv physics, hluav taws xob yog emission los yog kis ntawm lub zog nyob rau hauv daim ntawv ntawm nthwv dej los yog hais los ntawm qhov chaw los yog los ntawm ib tug khoom nruab nrab. Qhov no suav nrog: electromagnetic hluav taws xob xws li xov tooj cua tsis, pom lub teeb, thiab x-rays. particle hluav taws xob xws li α, β, thiab neutron hluav taws xob.
Ib qho ntxiv, cov qib hluav taws xob yog dab tsi? Cov teebmeem ntawm Radiation Levels rau tib neeg lub cev
| Dose-rem | Cov teebmeem |
|---|---|
| 200-300 | Cov teeb meem mob hnyav hnyav xws li hauv 100-200 rem thiab ntshav tawm; Kev kis tus kab mob yog ib qho Lethal Dose rau 10-35% ntawm cov pejxeem tom qab 30 hnub (LD 10-35/30). |
| 300-400 | Mob hnyav hluav taws xob; kuj mob plab thiab plab hnyuv puas tsuaj; LD 50-70/30. |
Hais txog qhov no, qhov teeb meem ntawm hluav taws xob yog dab tsi?
Tshaj tawm rau qib siab heev ntawm hluav taws xob , xws li nyob ze rau qhov tawg atomic, tuaj yeem ua rau mob hnyav xws li tawv nqaij kub hnyiab thiab mob hnyav. hluav taws xob cov tsos mob (" hluav taws xob mob"). Nws kuj tuaj yeem ua rau muaj kev noj qab haus huv mus ntev xws li mob qog noj ntshav thiab kab mob plawv.
Cov hluav taws xob tsim tau li cas?
Ionizing hluav taws xob yog ua los ntawm unstable atoms. Cov atoms tsis ruaj khov txawv ntawm cov atoms ruaj khov vim tias cov atoms tsis ruaj khov muaj ntau dhau ntawm lub zog lossis loj lossis ob qho tib si. Hluav taws xob tuaj yeem yog ua los ntawm cov cuab yeej siv hluav taws xob siab (piv txwv li, tshuab xoo hluav taws xob). Yuav kom ncav cuag stability, cov atoms muab tawm, los yog emit, lub zog los yog loj.
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
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
Ntev npaum li cas qhov chaw nyob rau hluav taws xob hluav taws xob?
Tom qab koj ua tiav kev xyaum ua haujlwm ib xyoos, koj yuav tsum ua kom tiav 4 xyoo nyob hauv kev kuaj mob. Thaum lub sijhawm koj nyob, koj yuav tsum tau zaum rau ntau qhov kev xeem ua los ntawm American Boardof Radiology. Qhov no suav nrog kev sau ntawv thiab kev hais lus ntawm rooj sab laj thiab kev tshuaj xyuas lub cev
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