Luminescence and Scintillation Properties of YAl3(BO3)4 Single Crystal for Thermal Neutron Detection
Source abstract
Abstract
A single crystal of YAl3(BO3)4 was grown using the top-seeded solution growth method. The vacuum ultraviolet (VUV) excitation spectrum, monitored at the emission wavelength of 312 and 372 nm, showed a narrow excitation band at around 162 nm, which is located near the absorption edge of the YAl3(BO3)4 host. Upon VUV excitation at 162 nm, the characteristic self-trapped exciton (STE) emission bands were observed at 312 and 372 nm. The X-ray excited scintillation spectrum shows a broad emission band peaking at 310 nm with a weak shoulder band at around 375 nm, which is consistent with photoluminescence, and can thus be assigned to the STE emission. The scintillation light yield under irradiation at a 252Cf-thermal neutron reached 2700 photons/thermal neutron.
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Research context
OpenAlex topics: Radiation Detection and Scintillator Technologies · Luminescence Properties of Advanced Materials · Nuclear Physics and Applications
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Department of Applied Chemistry, Graduate School of Engineering, Tohoku University, 6-6-07 Aramaki Aza Aoba, Aoba-ku, Sendai 980-8579, Miyagi, Japan
Research Institute of Electronics, Shizuoka University, 3-5-1 Johoku, Naka-ku, Hamamatsu 432-8011, Shizuoka, Japan
Faculty of Engineering, Kyushu University, 744 Motooka, Nishi-ku, Hamamatsu 432-8011, Shizuoka, Japan
OXIDE Corporation, 1747-1 Maginohara, Mukawa, Hokuto 408-0302, Yamanashi, Japan
Funding
a Grant-in-Aid for Scientific Research (A) · Grant-in-Aid for Challenging Research (Exploratory) · Japan Society for the Promotion of Science · Amano Institute of Technology 2024 research grant · Research Foundation for the Electrotechnology of Chubu 2023 research grant · National Institute of Advanced Industrial Science and Technology (AIST) · Tohoku University · Cooperative Research Program of “Network Joint Research Center for Materials and Devices” (MEXT) · Iketani Science and Technology Foundation 2024 research grant
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