6 papers
Characterization of High-Purity Germanium Detectors with Amorphous Germanium Contacts in Cryogenic Liquids
R. Panth, J. Liu, I. Abt +6
For the first time, planar high-purity germanium detectors with thin amorphous germanium contacts were successfully operated directly in liquid nitrogen and liquid argon in a cryos…
Investigation of the Electrical Conduction Mechanisms in P-type Amorphous Germanium (a-Ge) Used as a-Ge Contacts for Ge Detectors
S. Bhattarai, R. Panth, W. -Z. Wei +5
Electrical conduction mechanisms in the disordered material system is experimentally studied for p-type amorphous germanium (a-Ge) used for high-purity Ge detector contacts. The lo…
Characterization of High-Purity Germanium (Ge) Crystals for Developing Novel Ge Detectors
M. -S. Raut, H. Mei, D. -M. Mei +5
High-purity germanium (HPGe) crystals are required to be well-characterized before being fabricated into Ge detectors. The characterization of HPGe crystals is often performed with…
The Impact of the Charge Barrier Height on Germanium (Ge) Detectors with Amorphous-Ge Contacts for Light Dark Matter Searches
W. -Z. Wei, R. Panth, J. Liu +3
Germanium (Ge) detectors with ability of measuring a single electron-hole (e-h) pair are needed in searching for light dark matter (LDM) down to the MeV scale. We investigate the f…
Fabrication and Characterization of High-Purity Germanium Detectors with Amorphous Germanium Contacts
X. -H. Meng, G. -J. Wang, M. -D. Wagner +5
Large, high-purity, germanium (HPGe) detectors are needed for neutrinoless double-beta decay and dark matter experiments. Currently, large (> 4 inches in diameter) HPGe crystals ca…
Investigation of Amorphous Germanium Contact Properties with Planar Detectors Made from Home-Grown Germanium Crystals
W. -Z. Wei, X. -H. Meng, Y. -Y. Yang +6
The characterization of detectors fabricated from home-grown crystals is the most direct way to study crystal properties. We fabricated planar detectors from high-purity germanium…