TY - JOUR
T1 - Photoluminescence and scintillation properties of Eu-doped strontium aluminate crystals
AU - Nakauchi, Daisuke
AU - Okada, Go
AU - Masanori, Koshimizu
AU - Kawano, Naoki
AU - Kawaguchi, Noriaki
AU - Yanagida, Takayuki
N1 - Funding Information:
This work was supported by Grant-in-Aid for Scientific Research (A) (17H01375), Grant-in-Aid for Young Scientists (B) (17K14911) and Grant-in-Aid for Research Activity Start-up (16H06983) from the Ministry of Education, Culture, Sports, Science and Technology of the Japanese government ( MEXT ) as well as A-STEP from Japan Science and Technology Agency ( JST ). The Cooperative Research Project of Research Institute of Electronics, Shizuoka University, Mazda Foundation, Konica Minolta Science and Technology Foundation, NAIST Foundation and TEPCO Memorial Foundation are also acknowledged.
Publisher Copyright:
© 2018 Elsevier B.V.
PY - 2018/11/15
Y1 - 2018/11/15
N2 - Eu-doped SrAl12O19, SrAl4O7, Sr4Al14O25 and SrAl2O4 bulk crystals were successfully synthesized by the floating zone method. The samples exhibit photoluminescence and scintillation with an intense broad emission due to the 5d-4f transitions of Eu2+ in the visible range, and Eu:SrAl12O19 shows additional several sharp emissions owing to Eu3+. The Eu2+ emission blue-shifts as the Al-ratio increases. Pulse height spectrum measurements under 137Cs γ-ray irradiation demonstrated a clear photoabsorption peak, in which the scintillation light yields were estimated to be 6,900 (Eu:SrAl12O19), 700 (Eu:SrAl4O7), 6,500 (Eu:Sr4Al14O25) and 42,000 (Eu:SrAl2O4) photons/MeV.
AB - Eu-doped SrAl12O19, SrAl4O7, Sr4Al14O25 and SrAl2O4 bulk crystals were successfully synthesized by the floating zone method. The samples exhibit photoluminescence and scintillation with an intense broad emission due to the 5d-4f transitions of Eu2+ in the visible range, and Eu:SrAl12O19 shows additional several sharp emissions owing to Eu3+. The Eu2+ emission blue-shifts as the Al-ratio increases. Pulse height spectrum measurements under 137Cs γ-ray irradiation demonstrated a clear photoabsorption peak, in which the scintillation light yields were estimated to be 6,900 (Eu:SrAl12O19), 700 (Eu:SrAl4O7), 6,500 (Eu:Sr4Al14O25) and 42,000 (Eu:SrAl2O4) photons/MeV.
KW - Photoluminescence
KW - Scintillation
KW - Single crystal
KW - Strontium aluminate
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U2 - 10.1016/j.nimb.2018.01.007
DO - 10.1016/j.nimb.2018.01.007
M3 - Article
AN - SCOPUS:85040565391
VL - 435
SP - 273
EP - 277
JO - Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
JF - Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
SN - 0168-583X
ER -