6533b859fe1ef96bd12b6fb8

RESEARCH PRODUCT

Precision measurement of the conversion electron spectrum of 83mKr with a solenoid retarding spectrometer

M. PrzyrembelM. SchraderHartmut BackeJ. BonnMichael SteiningerChristian WeinheimerB. DegenA. PicardR. HaidA. OsipowiczPaul LeidererPaul LeidererA. HermanniErnst-wilhelm Otten

subject

PhysicsNuclear and High Energy PhysicsLuminosity (scattering theory)SpectrometerSolenoidElectronpacs:29.30.Dnpacs:27.50.+eElectron spectroscopySpectral lineNuclear physicsNuclear fusionddc:530NeutrinoAtomic physics

description

This paper reports on precision measurements of conversion lines in the decay of 83mKr with nuclear transition energies of 32.1 keV and 9.4 keV, respectively. The spectra were taken from a submonolayer surface of 83mKr frozen onto a cold backing, using the new Mainz solenoid retarding spectrometer. The high luminosity and resolution of this instrument enables the observation of all allowed conversion lines up to the N-shell and to fully separate the elastic component from inelastic satellites. The combined analysis of the data yields the transition energies Ey=32151.5±1.1 eV and 9405.9±0.8 eV, respectively. The experiment served also to pilot the application of this spectrometer to the question of a finite neutrino rest mass, searched for in the beta-decay spectrum of tritium and to problems in precision electron spectroscopy in general.

yearjournalcountryeditionlanguage
1992-03-01
10.1007/bf01294491