en

half-life

1

Terminological databases

EKI terminibaas Esterm

ID 695315 Last modified 08.03.2026
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Domain foodstuffs - production - products - tradepublic safety servicesstandardisation
half-life preferred
half-life period
half-life value
  • ajavahemik, mille vältel laguneb pool radioaktiivse aine ebastabiilsetest osakestest
  • for a single radioactive decay process,the mean time required for the activity to decrease to half its value by that process
  • Temps nécessaire pour que l'activité d'un radionucléide donné diminue jusqu'a la moitié de sa valeur par suite d'un processus de désintégration détermine.terme a proscrire:demi-vie.En effet,la période radioactive n'est pas égale a la moitié de la vie moyenne.
half-life preferred
Usage examples
  • Maximum permitted levels for foodstuffs and feedingstuffs ... all other nuclides of half-life greater than 10 days ...
half-life period
half-life value
halflife

Geoloogia terminibaas

ID 456231 Last modified 22.06.2023
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Domain geochemistry
  • aeg, mis kulub radioaktiivse elemendi/isotoobi lagunemiseks tütar-elementideks

Meteoroloogia ja klimatoloogia terminibaas

ID 515892 Last modified 22.06.2023
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Domain atmosphere - climatology - meteorology - magnetosphere
poolestusperiood

Militerm | riigikaitseterminite andmebaas

ID 526514 Last modified 22.06.2023
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Domain Weapons and Weapon Systems -> Nuclear Weapons
poolestusaeg preferred
poolnemisaeg deprecated
half-life preferred
  • aeg, mis kulub, et teatud radioaktiivse aine aktiivsus väheneks radioaktiivse lagunemise tõttu poole võrra
  • the time required for the activity of a given radioactive species to decrease to half of its initial value due to radioactive decay
Good to know
  • Poolestusaeg on iga radioaktiivse aine iseloomulik tunnus, mis ei sõltu selle hulgast ega seisundist. Teatud isotoobi efektiivne poolestusaeg on aeg, mis kulub, et selle hulk organismis väheneks poole võrra nii radioaktiivse lagunemise kui ka bioloogilise eritamise tagajärjel.
Good to know
  • The half-life is a characteristic property of each radioactive species and is independent of its amount or condition. The effective half-life of a given isotope is the time in which the quantity in the body will decrease to half as a result of both radioactive decay and biological elimination.
poolestusaeg preferred
poolnemisaeg deprecated
half-life preferred
Good to know
  • Approval status:
  • 2015
période radioactive preferred
Good to know
  • Approval status:
  • 2015

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