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    Becquerel - Wikipedia

    https://en.wikipedia.org/wiki/Becquerel

    The becquerel is the SI derived unit of radioactivity. One becquerel is defined as the activity of a quantity of radioactive material in which one nucleus decays per second. For applications relating to human health this is a small quantity, and SI multiples of the unit are commonly used. The becquerel is

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    1 Bq = 1 s
    A special name was introduced for the reciprocal second(s ) to represent radioactivity to avoid potentially dangerous mistakes with prefixes. For example, 1 µs would mean

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    As with every International System of Units (SI) unit named for a person, the first letter of its symbol is uppercase (Bq). However, when an SI unit is spelled

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    For practical applications, 1 Bq is a small unit. For example, the roughly 0.0169 g of potassium-40 present in a typical human body produces approximately 4,400 disintegrations per second or 4.4 kBq of activity.
    The global inventory of

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    The becquerel succeeded the curie (Ci), an older, non-SI unit of radioactivity based on the activity of 1 gram of radium-226. The curie is defined as 3.7×10 s , or 37 GBq.
    Conversion factors:
    1 Ci = 3.7×10 Bq = 37 GBq 1 μCi = 37,000 Bq = 37 kBq 1 Bq = 2.7×10

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    The following table shows radiation quantities in SI and non-SI units. WR(formerly 'Q' factor) is a factor that scales the biological effect for

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  2. Henri Becquerel - Wikipedia

    https://en.wikipedia.org/wiki/Henri_Becquerel

    Antoine Henri Becquerel was a French engineer, physicist, Nobel laureate, and the first person to discover evidence of radioactivity. For work in this field he, along with Marie Skłodowska-Curie (Marie Curie) and Pierre Curie, received the 1903 Nobel Prize in Physics. The SI unit for radioactivity, the becquerel (Bq), is named after him.

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  3. Becquerel — Wikipédia

    https://fr.wikipedia.org/wiki/Becquerel
    • Calcul de la radioactivité d'une masse donnée
      L'activité en becquerels de N atomes radioactifs de demi-vie t 1 / 2 {\displaystyle t_{1/2}} est[a]: 1. A = − d N d t = ln ⁡ 2 t 1 / 2 N {\displaystyle A=-{\frac {\mathrm {d} N}{\mathrm {d} t}}={\frac {\ln 2}{t_{1/2}}}N} . Une masse m {\displaystyle m} d'un isotope de masse molaire M {\displaystyle M…
    • Utilisation pour exprimer une quantité de matière
      Comme on l'a vu, une masse m d'un élément radioactif a une radioactivité A exprimée en Bq. Il arrive couramment que l'on utilise la relation inverse dans le domaine du nucléaire : partant d'une activité A en Bq, et connaissant les isotopes en jeu, on peut en déduire la masse m d'un élément …
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  4. Becquerel – Wikipédia

    https://hu.wikipedia.org/wiki/Becquerel
    • A becquerel a radioaktivitás korábban használatos nem-SI-mértékegységét, a curie-t (Ci) váltotta fel, amelyet egy gramm rádium-226 aktivitása alapján definiáltak. A curie a meghatározás szerint 3,7·1010 s−1, azaz 37 GBq.
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    • Becquerel (jednotka) – Wikipédia

      https://sk.wikipedia.org/wiki/Becquerel_(jednotka)

      Becquerel (Bq) je odvodená jednotka SI rádioaktivity, definovaná ako aktivita množstva rádioaktívneho materiálu, v ktorom prebehne jeden rozpad atómového jadra za jednu sekundu.Jej rozmer je teda s −1.Staršia jednotka rádioaktivita bol curie (Ci) – aktivita 1 gramu izotopu 226 Ra. 1 Ci je 3,7.10 10 Bq (37 GBq). Jednotka je pomenovaná na počesť A. H. Becquerela, nositeľa ...

    • Becquerel - Wikipedia

      https://ro.wikipedia.org/wiki/Becquerel

      Becquerel (pronunțat [], simbol: Bq) este o unitate de măsură în SI a radioactivității. Această unitate a fost denumită după fizicianul francez Antoine Henri Becquerel, care în anul 1903 a primit împreună cu Marie Curie premiul Nobel pentru descoperirea fenomenului de radioactivitate. Unitatea becquerel stabilește numărul de nuclee care se dezintegrează pe secundă:

      • Sistem: SI
      • Simbol: Bq
    • Becquerel – Wikipedie

      https://cs.wikipedia.org/wiki/Becquerel

      Becquerel (značka Bq) je jednotka intenzity záření zdroje radioaktivního záření v soustavě SI.Je pojmenovaná po francouzském fyzikovi Henrim Becquerelovi, který radioaktivitu objevil.Také je možné ji označit zjednodušeně jako aktivitu zdroje. Definice 1 Bq = 1 s −1. nebo také 1 Bq = 1 jaderný rozpad / 1 s,

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      • Becquerel – Wikipédia, a enciclopédia livre

        https://pt.wikipedia.org/wiki/Becquerel

        Becquerel (símbolo Bq) é a unidade de medida no Sistema Internacional (SI) para atividade de um radionuclídeo.O nome becquerel foi adotado pela 15ª Conferência Geral de Pesos e Medidas em 1975. [1]É definido como: 1 Bq = 1s −1, ou seja um becquerel corresponde a uma desintegração nuclear por segundo.. O nome dessa unidade é uma homenagem ao físico Antoine Henri …

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        • Henri Becquerel – Wikipedie

          https://cs.wikipedia.org/wiki/Henri_Becquerel
          Image
          Henri Becquerel se narodil v budově pařížského Muzea přírodních dějin (Muséum national d'histoire naturelle), kde byl profesorem jeho otec, fyzik Edmond Becquerel, i jeho děd, Antoine César Becquerel. Studoval v lyceu Ludvíka Velikého (Lycée Louis-le-Grand), kde ho mj. vyučoval matematice Gaston Darboux. V roce …
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        • Becquerel – Wikipédia

          https://sk.wikipedia.org/wiki/Becquerel

          Becquerel môže byť: jednotka rádioaktivity podľa sústavy SI, pozri becquerel (jednotka) impaktný kráter Marsu, pozri Becquerel (kráter) priezvisko, napr.: Antoine Henri Becquerel, fyzik. Toto je rozlišovacia stránka. Obsahuje rozličné významy uvedeného hesla.



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