Becquerel: Verskil tussen weergawes

Die '''becquerrel''' is die [[SI-stelsel|SI]] eenheid vir die aktiwiteit van 'n [[radio-aktiwiteit]] en het die simbool "Bq". Die naam "becquerel" is in 1975 deur die [[Internasionale Buro vir Mate en Gewigte|BIPM]] te ere van die Franse fisikus [[Henri Becquerel]] toegeken. Dit is gedefinieer as die gemiddelde aantal radio-aktiewe disintegrasies per sekonde. Dus het die becquerel die dimensie s^-1. Al is hierdie dimensie dieselfde as die dimensie van die SI-eenheid vir [[frekwensie]], die [[hertz]], word die eenheid "hertz" gebruik om gereelde gebeurtenisse te meet, maar 'n radio-aktiewe disintegrasie is 'n ewekansige gebeurtenis.<ref>{{cite web |title=Radioactivity : Radioactive Activity Doses |url=https://www.radioactivity.eu.com/site/pages/Activity_Doses.htm |website=www.radioactivity.eu.com |access-date=20 February 2020}}</ref><ref>{{cite web |title=Radiation Protection Guidance For Hospital Staff – Stanford Environmental Health & Safety |url=https://ehs.stanford.edu/manual/radiation-protection-guidance-hospital-staff/what-are-units-radiation-activity |website=ehs.stanford.edu |access-date=20 February 2020}}</ref><ref name="BIPMBecquerel">{{cite web|url=http://www.bipm.org/en/si/history-si/radioactivity/becquerel.html|title=BIPM - Becquerel|publisher=[[BIPM]]|access-date=2012-10-24}}</ref><ref name="Allisy">{{Citation|last=Allisy|first= A.|title=From the curie to the becquerel|journal=Metrologia|volume=32|issue=6|year=1995|pages=467–479|doi=10.1088/0026-1394/31/6/006|bibcode = 1995Metro..31..467A|s2cid= 250749337}}</ref><ref name="Allisy" /><ref name="BIPMtable3">{{cite web|url=http://www.bipm.org/en/publications/si-brochure/section2-2.html#section2-2-2|title=BIPM - Table 3|publisher=[[BIPM]]|quote=(d) The hertz is used only for periodic phenomena, and the becquerel is used only for stochastic processes in activity referred to a radionuclide.|access-date=2015-07-19}}</ref><ref name="pmid_1251122">{{Citation|last=Harder|first=D|year=1976|title=[The new radiologic units of measurement gray and becquerel (author's translation from the German original)]|journal=Röntgen-Blätter|volume=29|issue=1 |pages=49–52 |pmid=1251122 |postscript=.}}</ref><ref name="pmid_17836457">{{Citation|last=Lind|first=SC|year=1946|title=New units for the measurement of radioactivity|journal=Science|volume=103|issue=2687|pages=761–762|pmid=17836457|doi=10.1126/science.103.2687.761-a|postscript=.|bibcode=1946Sci...103..761L |s2cid=5343688 }}</ref>