Effect of B2O3 on luminescence and scintillation properties of Ce3+-doped gadolinium aluminium–silicate glass

Tunable valence state and scintillation performance of dense Ce3+-doped borosilicate glasses prepared in ambient atmosphere

“…The PL QY of glasses added with Si 3 N 4 is more than 60%, with a maximum of 72.51%. Compared with the Ce 3+ -doped 20Gd 2 O 3 –20Al 2 O 3 –60SiO 2 and 15B 2 O 3 –17Gd 2 O 3 –17Al 2 O 3 –51SiO 2 glasses studied previously, 3,22 GABS x glasses have greater advantages in density and luminescent efficiency.…”

“…Both the light yield and energy resolution can be evaluated. The function of the light yield (LY) of the glass scintillator can be expressed as follows: 3 where LY is the light yield of a scintillator; M E is the channel number of the full-energy peak in the energy spectrum; S is the single photoelectron channel number; ε PDE is the weighted photo detection efficiency (PDE) of the SiPM, which depends on the XEL spectrum of the scintillator; and E is the energy of the γ source, with the unit keV. Moreover, the measured energy resolution (Δ E / E ) of a scintillator is recorded by fitting the 662 keV full-energy peak of 137 Cs γ source.…”

“…A new design for a highly granular HCAL with a glass scintillator was proposed, which can provide a higher energy sampling fraction and a more compact HCAL layout. 3 This requires that the glass scintillators must be featured with a high density (46 g/cm 3 ), considerable light yield (41000 ph MeV À1 ), and short scintillation decay time (o300 ns). 4,5 In the practical high-energy physics fields, Ce 3+ ions are considered an ideal luminescent center for scintillating materials due to their allowed 5d-4f transition.…”

“…A new design for a highly granular HCAL with a glass scintillator was proposed, which can provide a higher energy sampling fraction and a more compact HCAL layout. 3 This requires that the glass scintillators must be featured with a high density (>6 g/cm 3 ), considerable light yield (>1000 ph MeV −1 ), and short scintillation decay time (<300 ns). 4,5…”

Preliminary optimization study on the PFA-based GSHCAL for the CEPC

“…Thus, a glass scintillator R&D collaboration (GS collaboration), dedicated to the exploration of key technologies for producing high-performance and large-size glass scintillators, has been established in China since 2021. Currently, 2024 JINST 19 T06008 more than 700 glass samples of different compositions and cell sizes have been produced by the GS collaboration, including Gd-Al-B-Si-Ce 3+ glass [22], Gd-Al-Si-Ce 3+ glass [23], B-Gd-Al-Si-Ce 3+ glass [24] and Ce-doped glass ceramic [25].…”