Characterization of Large Area, Thick, and Segmented Silicon Detectors for Neutron β-Decay Experiments

Americo Salas-Bacci; Patrick L. McGaughey; Stephan Baeßler; Leah Broussard; Mark F. Makela; J. Mirabal; Robert W. Pattie; Dinko Počanić; Sky K.L. Sjue; Seppo I. Penttila; Wesley S. Wilburn; Albert R. Young; B.A. Zeck; Zhehui Wang

doi:10.1016/j.nima.2013.09.059

Characterization of Large Area, Thick, and Segmented Silicon Detectors for Neutron β-Decay Experiments

Americo Salas-Bacci, Patrick L. McGaughey, Stephan Baeßler, Leah Broussard, Mark F. Makela, J. Mirabal, Robert W. Pattie, Dinko Počanić, Sky K.L. Sjue, Seppo I. Penttila, Wesley S. Wilburn, Albert R. Young, B.A. Zeck, Zhehui Wang

Research output: Contribution to journal › Article › peer-review

Abstract

The “Nab” and “UCNB” collaborations have proposed to measure the correlation parameters in neutron β-decay at Oak Ridge and Los Alamos National Laboratory, using a novel detector design. Two large area, thick, hexagonal-segmented silicon detectors containing 127 pixels per detector will be used to detect the proton and electron from neutron decay. Both silicon detectors are connected by magnetic field lines of a few Tesla field strength, and set on an electrostatic potential, such that protons can be accelerated up to 30 keV in order to be detected. Characteristics of the detector response to low energy conversion electrons and protons from 15 keV to 35 keV, including the evaluation of the dead layer thickness and other contributions to the pulse height defect for proton detection are presented for Si detectors of 0.5 mm and 1 mm of thickness.

Original language	American English
Journal	Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment
Volume	735
DOIs	https://doi.org/10.1016/j.nima.2013.09.059
State	Published - Jan 1 2014
Externally published	Yes

Keywords

Dead layer
Neutron beta decay
Nuclear defect
Pulse height defect
Silicon detector

Disciplines

Atomic, Molecular and Optical Physics
Physics

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Cite this

Salas-Bacci, A., McGaughey, P. L., Baeßler, S., Broussard, L., Makela, M. F., Mirabal, J., Pattie, R. W., Počanić, D., Sjue, S. K. L., Penttila, S. I., Wilburn, W. S., Young, A. R., Zeck, B. A., & Wang, Z. (2014). Characterization of Large Area, Thick, and Segmented Silicon Detectors for Neutron β-Decay Experiments. Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment, 735. https://doi.org/10.1016/j.nima.2013.09.059

Characterization of Large Area, Thick, and Segmented Silicon Detectors for Neutron β-Decay Experiments. / Salas-Bacci, Americo; McGaughey, Patrick L.; Baeßler, Stephan et al.
In: Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment, Vol. 735, 01.01.2014.

Research output: Contribution to journal › Article › peer-review

Salas-Bacci, A, McGaughey, PL, Baeßler, S, Broussard, L, Makela, MF, Mirabal, J, Pattie, RW, Počanić, D, Sjue, SKL, Penttila, SI, Wilburn, WS, Young, AR, Zeck, BA & Wang, Z 2014, 'Characterization of Large Area, Thick, and Segmented Silicon Detectors for Neutron β-Decay Experiments', Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment, vol. 735. https://doi.org/10.1016/j.nima.2013.09.059

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abstract = " The “Nab” and “UCNB” collaborations have proposed to measure the correlation parameters in neutron β-decay at Oak Ridge and Los Alamos National Laboratory, using a novel detector design. Two large area, thick, hexagonal-segmented silicon detectors containing 127 pixels per detector will be used to detect the proton and electron from neutron decay. Both silicon detectors are connected by magnetic field lines of a few Tesla field strength, and set on an electrostatic potential, such that protons can be accelerated up to 30 keV in order to be detected. Characteristics of the detector response to low energy conversion electrons and protons from 15 keV to 35 keV, including the evaluation of the dead layer thickness and other contributions to the pulse height defect for proton detection are presented for Si detectors of 0.5 mm and 1 mm of thickness. ",

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