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Your search keyword '"Colón Santana, Juan A."' showing total 22 results
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22 results on '"Colón Santana, Juan A."'

1. Lithium Tetraborate as a Neutron Scintillation Detector: A Review

Author

Echeverria, Elena, primary, McClory, John, additional, Samson, Lauren, additional, Shene, Katherine, additional, Colón Santana, Juan A., additional, Burak, Yaroslav, additional, Teodorovych, ADAMIV Volodymyr, additional, Teslyuk, Ihor, additional, Wang, Lu, additional, Mei, Wai-Ning, additional, Nelson, Kyle A., additional, McGregor, Douglas, additional, Dowben, Peter A., additional, Ilie, Carolina C., additional, Petrosky, James, additional, and Dhingra, Archit, additional

Published
2023
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2. Lithium Tetraborate as a Neutron Scintillation Detector: A Review.

Author

Echeverria, Elena, McClory, John, Samson, Lauren, Shene, Katherine, Colón Santana, Juan A., Burak, Yaroslav, Adamiv, Volodymyr, Teslyuk, Ihor, Wang, Lu, Mei, Wai-Ning, Nelson, Kyle A., McGregor, Douglas S., Dowben, Peter A., Ilie, Carolina C., Petrosky, James, and Dhingra, Archit

Subjects
SCINTILLATION counters, NEUTRON counters, PHOTOELECTRON spectroscopy, NEUTRON capture, DENSITY functional theory, LITHIUM
Abstract

The electronic structure and translucent nature of lithium tetraborate (Li2B4O7) render it promising as a scintillator medium for neutron detection applications. The inherently large neutron capture cross-section due to 10B and 6Li isotopes and the ease with which Li2B4O7 can be enriched with these isotopes, combined with the facile inclusion of rare earth dopants (occupying the Li+ sites), are expected to improve the luminescent properties, as well as the neutron detection efficiency, of Li2B4O7. The electronic structure of both doped and undoped Li2B4O7 were explored, using photoemission and inverse photoemission spectroscopies, optical measurements, and theoretical computational studies such as density functional theory. The scintillation properties are further enhanced because of the wide bandgap, making Li2B4O7 extremely translucent, so that capturing the neutron scintillation output is neither hindered nor diminished. Therefore, in this review, demonstrations of the possible amplification of neutron capture efficiencies, courtesy of rare-earth dopants, along with insights into a significantly large charge production (associated with neutron capture), are presented. [ABSTRACT FROM AUTHOR]

Published
2024
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17. Gamma and X-ray sensitivity of Gd2O3 heterojunctions

Author

Colón Santana, Juan A., primary, Young, C.M., additional, McClory, J.W., additional, Petrosky, J.C., additional, Wang, X., additional, Liu, P., additional, Tang, Jinke, additional, Adamiv, V.T., additional, Burak, Ya.V., additional, Fukutani, Keisuke, additional, and Dowben, P.A., additional

Published
2013
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22. Gamma and X-ray sensitivity of Gd2O3 heterojunctions.

Author

Colón Santana, Juan A., Young, C.M., McClory, J.W., Petrosky, J.C., Wang, X., Liu, P., Tang, Jinke, Adamiv, V.T., Burak, Ya.V., Fukutani, Keisuke, and Dowben, P.A.

Subjects
*GAMMA rays, *X-rays, *GADOLINIUM compounds, *THIN films, *HETEROJUNCTIONS, *SENSITIVITY analysis
Abstract

Abstract: We find that Gd2O3 thin films strongly favor a (−402) texture growth on a variety of substrates and will form heterojunction diodes with silicon, especially when doped with oxygen vacancies. Even in the thin film limit, these heterojunction diodes appear to be sensitive to gamma radiation, likely from the X-rays created by scattering events, adding to the numerous hurdles that must be overcome if Gd based semiconductor devices are to be used for solid state neutron detection applications. [Copyright &y& Elsevier]

Published
2013
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