Li2Se:Te as a neutron scintillator

Shi, Hongliang; Du, Mao-Hua; Singh, David J.

doi:10.1016/j.jallcom.2015.06.184

Title: Li2Se:Te as a neutron scintillator

Abstract

We show that Li₂Se:Te is a potential neutron scintillator material based on density functional calculations. Li₂Se exhibits a number of properties favorable for efficient neutron detection, such as a high Li concentration for neutron absorption, a small effective atomic mass and a low density for reduced sensitivity to background gamma rays, and a small band gap for a high light yield. Our calculations show that Te doping should lead to the formation of deep acceptor complex V_Li-Te_Se, which can facilitate efficient light emission, similar to the emission activation in Te doped ZnSe.

Authors:: Shi, Hongliang; Du, Mao-Hua; Singh, David J.

Publication Date:: Thu Oct 01 00:00:00 EDT 2015

Research Org.:: Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)

Sponsoring Org.:: USDOE Office of Science (SC), Basic Energy Sciences (BES)

OSTI Identifier:: 1252096

Alternate Identifier(s):: OSTI ID: 1210148

Grant/Contract Number:: AC05-00OR22725

Resource Type:: Published Article

Journal Name:: Journal of Alloys and Compounds

Additional Journal Information:: Journal Name: Journal of Alloys and Compounds Journal Volume: 647 Journal Issue: C; Journal ID: ISSN 0925-8388

Publisher:: Elsevier

Country of Publication:: Netherlands

Language:: English

Subject:: 36 MATERIALS SCIENCE; 73 NUCLEAR PHYSICS AND RADIATION PHYSICS

Citation Formats


                    Shi, Hongliang, Du, Mao-Hua, and Singh, David J. Li2Se:Te as a neutron scintillator.  Netherlands: N. p., 2015. 
Web.  doi:10.1016/j.jallcom.2015.06.184.

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                    Shi, Hongliang, Du, Mao-Hua, & Singh, David J. Li2Se:Te as a neutron scintillator.  Netherlands.  https://doi.org/10.1016/j.jallcom.2015.06.184

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                    Shi, Hongliang, Du, Mao-Hua, and Singh, David J. Thu .  
"Li2Se:Te as a neutron scintillator".  Netherlands.  https://doi.org/10.1016/j.jallcom.2015.06.184.

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@article{osti_1252096,

  title        = {Li2Se:Te as a neutron scintillator},

  author       = {Shi, Hongliang and Du, Mao-Hua and Singh, David J.},

  abstractNote = {We show that Li2Se:Te is a potential neutron scintillator material based on density functional calculations. Li2Se exhibits a number of properties favorable for efficient neutron detection, such as a high Li concentration for neutron absorption, a small effective atomic mass and a low density for reduced sensitivity to background gamma rays, and a small band gap for a high light yield. Our calculations show that Te doping should lead to the formation of deep acceptor complex VLi-TeSe, which can facilitate efficient light emission, similar to the emission activation in Te doped ZnSe.},

  doi          = {10.1016/j.jallcom.2015.06.184},

  journal      = {Journal of Alloys and Compounds},

  number       = C,

  volume       = 647,

  place        = {Netherlands},

  year         = {Thu Oct 01 00:00:00 EDT 2015},

  month        = {Thu Oct 01 00:00:00 EDT 2015}

}

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Title: Li2Se:Te as a neutron scintillator

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