A germanium detector may give resolution of 560 eV at 122 keV, yielding a relative resolution of 0.46%.
Relative efficiency values greater than one hundred percent can therefore be encountered when working with very large germanium detectors.
Cryogenic temperatures are vital to the operation of germanium detectors.
For extra sensitive measurements high-pure germanium detectors are used under a liquid nitrogen environment.
When germanium detectors were first developed, only very small crystals were available.
The major drawback of germanium detectors is that they must be cooled to liquid nitrogen temperatures to produce spectroscopic data.
It consists of 108 Compton-suppressed large volume, high-purity germanium detectors arranged in a spherical shell.
Many semiconductor radiation detectors are based on this fact (e.g., avalanche photodiode, germanium detector).
Various physics methods are used, including gamma spectroscopy with high-resolution germanium detectors.
The Pandemonium effect is a problem that may appear when high resolution detectors (usually germanium detectors) are used in beta decay studies.