Characterization of mixed Bi.sub.4./sub.(Ge.sub.x./sub.Si.sub.1-x./sub.).sub.3./sub.O.sub.12./sub. for crystal calorimetry at future colliders

0558405 - FZÚ 2023 RIV NL eng J - Journal Article
Cala', R. - Kratochwil, N. - Martinazzoli, L. - Lucchini, M.T. - Gundacker, S. - Galenin, E. - Gerasymov, I. - Sidletskiy, O. - Nikl, Martin - Auffray, E.
Characterization of mixed Bi₄(Ge_xSi_1-x)₃O₁₂ for crystal calorimetry at future colliders.
Nuclear Instruments & Methods in Physics Research Section A. Roč. 1032, June (2022), č. článku 166527. ISSN 0168-9002. E-ISSN 1872-9576
R&D Projects: GA MŠMT(CZ) EF16_019/0000760
Grant - others:OP VVV - SOLID21(XE) CZ.02.1.01/0.0/0.0/16_019/0000760
Institutional support: RVO:68378271
Keywords : mixed crystals * dual-readout calorimetry * BGO * BSO * Cherenkov emission
OECD category: Condensed matter physics (including formerly solid state physics, supercond.)
Impact factor: 1.4, year: 2022
Method of publishing: Open access

The optical and scintillation properties of two sets of BGSO mixed crystals with Ge fraction varying from 0 to 100% were measured. A coincidence time resolution (CTR) at 511 keV of about 208 ps FWHM was measured for a 2x2x3 mm3 pixel with 40% Ge, while the optimum value obtained for the effective decay time is about 49.9 ns for a 6x6x0.7 mm3 plate-shaped sample with 30% Ge. Furthermore the smallest slow decay time component achieved is about 101 ns and is obtained for the plate-shaped sample with 30% Ge, while the largest is about 236 ns for a pure BGO sample with the same geometry.
Permanent Link: https://hdl.handle.net/11104/0336509