Meitner–Hahn experiments

E159821

The Meitner–Hahn experiments were pioneering nuclear physics investigations in the 1930s that led to the discovery and explanation of nuclear fission in uranium.

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Predicate Object
instanceOf nuclear physics experiment
physics experiment
scientific experiment
aim study neutron-induced radioactivity in heavy elements
understand transuranium element formation
associatedConcept E = mc² in nuclear processes
fission fragments
mass defect
concluded 1938
contributor Fritz Strassmann
country Germany
discoverer Lise Meitner
Otto Hahn
field nuclear physics
radioactivity
hasPart chemical separation of reaction products
identification of barium among uranium reaction products
neutron irradiation of uranium
inception 1934
influencedBy Enrico Fermi’s neutron irradiation work
keyFinding large energy release accompanies uranium fission
uranium can split into two roughly equal-mass nuclei
ledTo development of nuclear reactor concepts
explanation of nuclear fission
foundations of nuclear weapons development
location Berlin
Kaiser Wilhelm Institute for Chemistry
mainSubject neutron-induced reactions
nuclear fission
uranium
notableDate December 1938
partOf history of atomic energy
history of nuclear physics
preceded first controlled nuclear chain reaction
publication Meitner–Hahn experiments self-linksurface differs
surface form: Die Deutung der bei der Bestrahlung des Urans mittels Neutronen entstehenden Aktivitäten

Meitner–Hahn experiments self-linksurface differs
surface form: Über den Nachweis und das Verhalten der bei der Bestrahlung des Urans mittels Neutronen entstehenden Erdalkalimetalle
recognizedAs pioneering work in nuclear fission
result discovery of nuclear fission of uranium
evidence that uranium nuclei can split into lighter elements
observation of barium as a fission product
theoreticalInterpretationBy Lise Meitner
Otto Frisch
surface form: Otto Robert Frisch
timePeriod 1930s
used radiochemical analysis
slow neutrons
uranium targets

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Lise Meitner knownFor Meitner–Hahn experiments
Meitner–Hahn experiments publication Meitner–Hahn experiments self-linksurface differs
this entity surface form: Die Deutung der bei der Bestrahlung des Urans mittels Neutronen entstehenden Aktivitäten
Meitner–Hahn experiments publication Meitner–Hahn experiments self-linksurface differs
this entity surface form: Über den Nachweis und das Verhalten der bei der Bestrahlung des Urans mittels Neutronen entstehenden Erdalkalimetalle