Detection System for Neutron $\beta$ Decay Correlations in the UCNB and Nab experiments

L. J. Broussard; B. A. Zeck; E. R. Adamek; S. Baeßler; N. Birge; M. Blatnik; J. D. Bowman; A. E. Brandt; M. Brown; J. Burkhart; N. B. Callahan; S. M. Clayton; C. Crawford; C. Cude-Woods; S. Currie; E. B. Dees; X. Ding; N. Fomin; E. Frlez; J. Fry; F. E. Gray; S. Hasan; K. P. Hickerson; J. Hoagland; A. T. Holley; T. M. Ito; A. Klein; H. Li; C. -Y. Liu; M. F. Makela; P. L. McGaughey; J. Mirabal-Martinez; C. L. Morris; J. D. Ortiz; R. W. Pattie; S. I. Penttilä; B. Plaster; D. Počanić; J. C. Ramsey; A. Salas-Bacci; D. J. Salvat; A. Saunders; S. J. Seestrom; S. K. L. Sjue; A. P. Sprow; Z. Tang; R. B. Vogelaar; B. Vorndick; Z. Wang; W. Wei

doi:10.1016/j.nima.2016.12.030

Detection System for Neutron $\beta$ Decay Correlations in the UCNB and Nab experiments

Instrumentation and Detectors 2017-01-10 v2 Nuclear Experiment

Authors: L. J. Broussard , B. A. Zeck , E. R. Adamek , S. Baeßler , N. Birge , M. Blatnik , J. D. Bowman , A. E. Brandt , M. Brown , J. Burkhart , N. B. Callahan , S. M. Clayton , C. Crawford , C. Cude-Woods , S. Currie , E. B. Dees , X. Ding , N. Fomin , E. Frlez , J. Fry , F. E. Gray , S. Hasan , K. P. Hickerson , J. Hoagland , A. T. Holley , T. M. Ito , A. Klein , H. Li , C. -Y. Liu , M. F. Makela , P. L. McGaughey , J. Mirabal-Martinez , C. L. Morris , J. D. Ortiz , R. W. Pattie , S. I. Penttilä , B. Plaster , D. Počanić , J. C. Ramsey , A. Salas-Bacci , D. J. Salvat , A. Saunders , S. J. Seestrom , S. K. L. Sjue , A. P. Sprow , Z. Tang , R. B. Vogelaar , B. Vorndick , Z. Wang , W. Wei , J. Wexler , W. S. Wilburn , T. L. Womack , A. R. Young

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Abstract

We describe a detection system designed for precise measurements of angular correlations in neutron $\beta$ decay. The system is based on thick, large area, highly segmented silicon detectors developed in collaboration with Micron Semiconductor, Ltd. The prototype system meets specifications for $\beta$ electron detection with energy thresholds below 10 keV, energy resolution of $\sim$ 3 keV FWHM, and rise time of $\sim$ 50 ns with 19 of the 127 detector pixels instrumented. Using ultracold neutrons at the Los Alamos Neutron Science Center, we have demonstrated the coincident detection of $\beta$ particles and recoil protons from neutron $\beta$ decay. The fully instrumented detection system will be implemented in the UCNB and Nab experiments, to determine the neutron $\beta$ decay parameters $B$ , $a$ , and $b$ .

Keywords

neutron beta decay angular correlations silicon detector UCNB experiment Nab experiment coincident detection

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@article{arxiv.1607.02656,
  title  = {Detection System for Neutron $\beta$ Decay Correlations in the UCNB and Nab experiments},
  author = {L. J. Broussard and B. A. Zeck and E. R. Adamek and S. Baeßler and N. Birge and M. Blatnik and J. D. Bowman and A. E. Brandt and M. Brown and J. Burkhart and N. B. Callahan and S. M. Clayton and C. Crawford and C. Cude-Woods and S. Currie and E. B. Dees and X. Ding and N. Fomin and E. Frlez and J. Fry and F. E. Gray and S. Hasan and K. P. Hickerson and J. Hoagland and A. T. Holley and T. M. Ito and A. Klein and H. Li and C. -Y. Liu and M. F. Makela and P. L. McGaughey and J. Mirabal-Martinez and C. L. Morris and J. D. Ortiz and R. W. Pattie and S. I. Penttilä and B. Plaster and D. Počanić and J. C. Ramsey and A. Salas-Bacci and D. J. Salvat and A. Saunders and S. J. Seestrom and S. K. L. Sjue and A. P. Sprow and Z. Tang and R. B. Vogelaar and B. Vorndick and Z. Wang and W. Wei and J. Wexler and W. S. Wilburn and T. L. Womack and A. R. Young},
  journal= {arXiv preprint arXiv:1607.02656},
  year   = {2017}
}

Detection System for Neutron $\beta$ Decay Correlations in the UCNB and Nab experiments

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