27 citations · 76 across the 9 of their papers we have counts for
9 papers
Liquid argon purification and purity monitoring: apparatus and first results
Wenzhao Wei, I-see Warisa Jaidee, Spencer Dockal +14
We report results from a 13-liter purified liquid argon test stand at Wellesley College in Massachusetts, USA. The system includes a single-pass liquid-phase purification column th…
First operation of a multi-channel Q-Pix prototype: measuring transverse electron diffusion in a gas time projection chamber
Nora Hoch, Olivia Seidel, Varghese A. Chirayath +19
We report measurements of the transverse diffusion of electrons in P-10 gas (90% Ar, 10% CH4) in a laboratory-scale time projection chamber (TPC) utilizing a novel pixelated signal…
The Decay Q Value of Neutrinoless Double Beta Decay
Dongming Mei, Wenzhao Wei
An earlier publication "The implication of the atomic effects in neutrinoless double beta (0) decay" written by Mei and Wei has motivated us to compare the decay Q value ($Q_{…
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…