Video: Dab tsi yog SI chav tsev ntawm qhov raug uas ntsuas hluav taws xob hauv huab cua?
2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
Nws txhais tau tias yog tus nqi hluav taws xob tso tawm los ntawm cov hluav taws xob zoo li no hauv ib lub ntim ntawm huab cua muab faib los ntawm huab cua. SI unit ntawm exposure yog lub coulomb per kilogram (C/ kg ), uas tau hloov pauv ntau qhov roentgen (R).
Kuj nug, dab tsi yog chav tsev rau hluav taws xob raug nyob rau hauv huab cua?
Cov units ntawm kev ntsuas rau radioactivity yog curie (Ci) thiab becquerel (Bq). Exposure piav qhia txog tus nqi hluav taws xob taug kev los ntawm huab cua. Ntau cov hluav taws xob ntsuas ntsuas qhov raug. Cov chav nyob rau kis yog roentgen (R) thiab coulomb/kilogram (C/kg).
Muaj pes tsawg Roentgen tuag? Yog tias 100 tus neeg tau txais 350 rems ntawm hluav taws xob tam sim ntawd, txog 3.5 sieverts, ces ib nrab ntawm lawv yuav tuag hauv 60 hnub. 350 rems suav tias yog LD50/60.
Yog li ntawd, dab tsi yog SI units rau cov xov tooj cua saum npoo av?
becquerel (Bq) yog tus SI unit ntawm radioactivity sib npaug rau ib qho kev puas tsuaj nuclear ib ob. 1 Bq = 1 / s. Yog li ntawd, tus nqi ntawm cov khoom siv uas ua rau ib qho tawg ntawm nuclear ib pliag, tau hais kom muaj radioactivity of 1. Bq exabecquerel (Ebq) = 1018 Bq.
Muaj hluav taws xob ntau npaum li cas hauv cov txiv tsawb?
Cov hluav taws xob raug los ntawm kev siv a txiv tsawb yog kwv yees li 1% ntawm qhov nruab nrab txhua hnub raug rau hluav taws xob , yog 100 txiv tsawb koob tshuaj sib npaug (BED). Qhov siab tshaj plaws tau tso cai hluav taws xob xau rau lub tshuab fais fab nuclear sib npaug rau 2, 500 BED (250 ΜSv) ib xyoos, thaum lub hauv siab CT scan xa 70, 000 BED (7 mSv).
Pom zoo:
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