Observations on the energy resolution of germanium detectors for 0.1-10 MeV gamma rays
- 1 June 1966
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Nuclear Science
- Vol. 13 (3) , 252-264
- https://doi.org/10.1109/TNS.1966.4324107
Abstract
The ratio of variance to yield was studied for γ-rays at energies up to 10.080 MeV in lithium-drifted germanium detectors. With detectors of thickness up to 14 mm this ratio was found to be as low as 0.13 /spl I.plusmn/ 0.02 at 122 and 356 keV. At energies between 1 and 10 MeV the ratio was found to be 0.16 ± 0.01, corresponding to a detector contribution of 4.8 /spl I.plusmn/ 0.1 keV (FWHM) at 10 MeV. Investigation of the dependence of the ratio of variance to yield on electric field intensity resulted in acceptance of F = 0.13 /spl I.plusmn/ 0.02 as the best experimental estimate of the Fano factor, and F = 0.16 is interpreted as an upper limit for γ-rays at energies between 1 and 10 MeV.Keywords
This publication has 2 references indexed in Scilit:
- Progress in the Application of Semiconductor Detectors to Nuclear Physics ExperimentsIEEE Transactions on Nuclear Science, 1965
- HIGH-RESOLUTION STUDIES OF GAMMA-RAY SPECTRA USING LITHIUM-DRIFT GERMANIUM GAMMA-RAY SPECTROMETERSCanadian Journal of Physics, 1964