Geiger-Nuttall law

Geiger-Nuttall law

In nuclear physics, the Geiger-Nuttall law or Geiger-Nuttall rule relates the decay constant of a radioactive isotope with the energy of the alpha particles emitted. Roughly speaking, it states that short lived isotopes emit more energetic alpha particles than long lived ones.

Formulated in 1911 by Hans Geiger and John Mitchell Nuttall, in its modern form the Geiger-Nuttall law is:lnlambda=-a_1frac{Z}{sqrt{E+a_2where "λ" is the decay constant, "Z" the atomic number, "E" the total kinetic energy (of the alpha particle and the daughter nucleus), and "a"1 and "a"2 are constants.

References

*


Wikimedia Foundation. 2010.

Игры ⚽ Поможем написать курсовую

Look at other dictionaries:

  • geiger-nuttall law — noun also geiger nuttall relation | ̷ ̷ ̷ ̷|nəd.ˌȯl Usage: usually capitalized G&N Etymology: after H. Geiger and John M. Nuttall died 1958 British physicist : a statement in nuclear physics: for an alpha emitting radioactive substance the… …   Useful english dictionary

  • geiger-nuttall relation — noun see geiger nuttall law …   Useful english dictionary

  • Nuttall — may refer to: People: Amy Nuttall (b. 1982), British actress Anthony Nuttall (1937 2007), English literary critic Carrie Nuttall, photographer Charles Nuttall (1872 1934), Australian artist David Nuttall (b. 1962), British politician Enos Nuttall …   Wikipedia

  • Hans Geiger — Infobox Scientist name = Hans Geiger birth date = September 30, 1882 birth place = Neustadt an der Haardt death date = September 24, 1945 death place = Potsdam residence = citizenship = nationality = German ethnicity = field = physics work… …   Wikipedia

  • John Mitchell Nuttall — (July 21, 1890 – January 28, 1958) was an English physicist, born in Todmorden. He is best remembered for his work with the physicist Hans Geiger, which resulted in the Geiger Nuttall law of radioactive decay …   Wikipedia

  • Scientific phenomena named after people — This is a list of scientific phenomena and concepts named after people (eponymous phenomena). For other lists of eponyms, see eponym. NOTOC A* Abderhalden ninhydrin reaction Emil Abderhalden * Abney effect, Abney s law of additivity William de… …   Wikipedia

  • Todmorden — Coordinates: 53°42′47″N 2°05′46″W / 53.713°N 2.096°W / 53.713; 2.096 …   Wikipedia

  • George Gamow — Born March 4, 1904(1904 03 04) …   Wikipedia

  • radioactivity — /ray dee oh ak tiv i tee/, n. Physics, Chem. the phenomenon, exhibited by and being a property of certain elements, of spontaneously emitting radiation resulting from changes in the nuclei of atoms of the element. Also called activity. [1895… …   Universalium

  • Dounreay — in 2006 …   Wikipedia

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”