Bulletin of the American Physical Society
APS April Meeting 2019
Volume 64, Number 3
Saturday–Tuesday, April 13–16, 2019; Denver, Colorado
Session L10: Tonne Scale Neutrinoless Double Beta Decay R&D V
3:30 PM–5:18 PM,
Sunday, April 14, 2019
Sheraton
Room: Governor's Square 12
Sponsoring
Units:
DNP DPF
Chair: Reina Maruyama, Yale University
Abstract: L10.00009 : Characterizing Germanium (Ge) Crystals for Developing Ge detectors*
5:06 PM–5:18 PM
View Presentation Abstract
Presenter:
Mathbar Singh Raut
(University Of South Dakota)
Authors:
Mathbar Singh Raut
(University Of South Dakota)
Sanjay Bhattarai
(University of South Dakota, University of South Dakota)
Jing Liu
(University of South Dakota, University of South Dakota)
Hao Mei
(University of South Dakota, University of South Dakota)
Dongming Mei
(University of South Dakota, University of South Dakota)
Gang Yang
(University of South Dakota)
Guojian Wang
(University of South Dakota, University of South Dakota)
Collaboration:
PIRE-GEMADARC
The carrier concentration, the mobility of the charge carriers and the resistivity are some of the key electrical properties which are used to determine the quality of the grown HPGe crystals in the laboratory. A Vander Pauw Hall - Effect measurement system is used to measure the above mentioned electrical properties. We study the systematic error in measuring electrical properties using the Hall Effect with samples cut into different shapes. An optical microscope (Nikon Eclipse LV150L) is used to observe and count dislocations to calculate the dislocation density. We report the systematic errors in Hall Effect measurements that will impact the detector performance. This work is supported by NSF OISE-1743790 and NSF PHY-1902577.
*NSF OISE-1743790 and NSF PHY-1902577.
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