Simulations of light collection in long tapered CsI(Tl) scintillators using real crystal surface data and comparisons to measurement

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Simulations of light collection in long tapered CsI(Tl) scintillators using real crystal surface data and comparisons to measurement. / Knyazev, A.; Park, J.; Golubev, P.; Cederkäll, J.; Alvarez-Pol, H.; Benlliure, J.; Cabanelas, P.; Casarejos, E.; Causeret, L.; Cortina-Gil, D.; Díaz Fernández, P.; Feijoo, M.; Galaviz, D.; Galiana, E.; Gernhäuser, R.; Gonzalez, D.; Hartig, A.-L.; Heinz, A.; Heiss, B.; Johansson, H.T.; Klenze, P.; Kröll, T.; Perea, A.; Ponnath, L.; Ren, Z.; Rhee, H.-B.; Rodríguez-Sánchez, J.L.; Rondeau, G.; Tengblad, O.; Scheblykin, I.G.; Teubig, P.; Timm, R.

I: Nuclear Instruments & Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment, Vol. 1003, 165302, 01.04.2021.

Forskningsoutput: TidskriftsbidragArtikel i vetenskaplig tidskrift

Harvard

Knyazev, A, Park, J, Golubev, P, Cederkäll, J, Alvarez-Pol, H, Benlliure, J, Cabanelas, P, Casarejos, E, Causeret, L, Cortina-Gil, D, Díaz Fernández, P, Feijoo, M, Galaviz, D, Galiana, E, Gernhäuser, R, Gonzalez, D, Hartig, A-L, Heinz, A, Heiss, B, Johansson, HT, Klenze, P, Kröll, T, Perea, A, Ponnath, L, Ren, Z, Rhee, H-B, Rodríguez-Sánchez, JL, Rondeau, G, Tengblad, O, Scheblykin, IG, Teubig, P & Timm, R 2021, 'Simulations of light collection in long tapered CsI(Tl) scintillators using real crystal surface data and comparisons to measurement', Nuclear Instruments & Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment, vol. 1003, 165302. https://doi.org/10.1016/j.nima.2021.165302

APA

Knyazev, A., Park, J., Golubev, P., Cederkäll, J., Alvarez-Pol, H., Benlliure, J., Cabanelas, P., Casarejos, E., Causeret, L., Cortina-Gil, D., Díaz Fernández, P., Feijoo, M., Galaviz, D., Galiana, E., Gernhäuser, R., Gonzalez, D., Hartig, A-L., Heinz, A., Heiss, B., ... Timm, R. (2021). Simulations of light collection in long tapered CsI(Tl) scintillators using real crystal surface data and comparisons to measurement. Nuclear Instruments & Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment, 1003, [165302]. https://doi.org/10.1016/j.nima.2021.165302

CBE

Knyazev A, Park J, Golubev P, Cederkäll J, Alvarez-Pol H, Benlliure J, Cabanelas P, Casarejos E, Causeret L, Cortina-Gil D, Díaz Fernández P, Feijoo M, Galaviz D, Galiana E, Gernhäuser R, Gonzalez D, Hartig A-L, Heinz A, Heiss B, Johansson HT, Klenze P, Kröll T, Perea A, Ponnath L, Ren Z, Rhee H-B, Rodríguez-Sánchez JL, Rondeau G, Tengblad O, Scheblykin IG, Teubig P, Timm R. 2021. Simulations of light collection in long tapered CsI(Tl) scintillators using real crystal surface data and comparisons to measurement. Nuclear Instruments & Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment. 1003:Article 165302. https://doi.org/10.1016/j.nima.2021.165302

MLA

Vancouver

Author

Knyazev, A. ; Park, J. ; Golubev, P. ; Cederkäll, J. ; Alvarez-Pol, H. ; Benlliure, J. ; Cabanelas, P. ; Casarejos, E. ; Causeret, L. ; Cortina-Gil, D. ; Díaz Fernández, P. ; Feijoo, M. ; Galaviz, D. ; Galiana, E. ; Gernhäuser, R. ; Gonzalez, D. ; Hartig, A.-L. ; Heinz, A. ; Heiss, B. ; Johansson, H.T. ; Klenze, P. ; Kröll, T. ; Perea, A. ; Ponnath, L. ; Ren, Z. ; Rhee, H.-B. ; Rodríguez-Sánchez, J.L. ; Rondeau, G. ; Tengblad, O. ; Scheblykin, I.G. ; Teubig, P. ; Timm, R. / Simulations of light collection in long tapered CsI(Tl) scintillators using real crystal surface data and comparisons to measurement. I: Nuclear Instruments & Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment. 2021 ; Vol. 1003.

RIS

TY - JOUR

T1 - Simulations of light collection in long tapered CsI(Tl) scintillators using real crystal surface data and comparisons to measurement

AU - Knyazev, A.

AU - Park, J.

AU - Golubev, P.

AU - Cederkäll, J.

AU - Alvarez-Pol, H.

AU - Benlliure, J.

AU - Cabanelas, P.

AU - Casarejos, E.

AU - Causeret, L.

AU - Cortina-Gil, D.

AU - Díaz Fernández, P.

AU - Feijoo, M.

AU - Galaviz, D.

AU - Galiana, E.

AU - Gernhäuser, R.

AU - Gonzalez, D.

AU - Hartig, A.-L.

AU - Heinz, A.

AU - Heiss, B.

AU - Johansson, H.T.

AU - Klenze, P.

AU - Kröll, T.

AU - Perea, A.

AU - Ponnath, L.

AU - Ren, Z.

AU - Rhee, H.-B.

AU - Rodríguez-Sánchez, J.L.

AU - Rondeau, G.

AU - Tengblad, O.

AU - Scheblykin, I.G.

AU - Teubig, P.

AU - Timm, R.

PY - 2021/4/1

Y1 - 2021/4/1

N2 - Simulation results for light transport in long tapered CsI(Tl) crystals using look-up tables (LUTs) are presented. The LUTs were derived from the topography of a polished and a lapped surface of a CsI(Tl) crystal measured with atomic force microscopy. Simulations with different combinations of polished and lapped surfaces were performed, to extract the non-uniformity of light collection depending on the interaction point, and compared to experimental results. The simulations reproduce the general trend given by the measurements, and show that more homogeneous light collection is attained when all lateral sides of the crystal are lapped. For the lapped crystal the simulation model is most sensitive to the reflectivity of the enhanced specular reflector (ESR) foil surrounding the crystal, which is one of several properties influencing the light transport examined in this study. The sensitivity of the light-output non-uniformity to variations in the absorption length observed in a batch of CsI(Tl) crystals in a previous study is also discussed. Residual differences between the simulation and the measurements can potentially be attributed to the scattering of scintillation photons inside the materials used. Additional measurements to further advance the construction of the simulation model are suggested.

AB - Simulation results for light transport in long tapered CsI(Tl) crystals using look-up tables (LUTs) are presented. The LUTs were derived from the topography of a polished and a lapped surface of a CsI(Tl) crystal measured with atomic force microscopy. Simulations with different combinations of polished and lapped surfaces were performed, to extract the non-uniformity of light collection depending on the interaction point, and compared to experimental results. The simulations reproduce the general trend given by the measurements, and show that more homogeneous light collection is attained when all lateral sides of the crystal are lapped. For the lapped crystal the simulation model is most sensitive to the reflectivity of the enhanced specular reflector (ESR) foil surrounding the crystal, which is one of several properties influencing the light transport examined in this study. The sensitivity of the light-output non-uniformity to variations in the absorption length observed in a batch of CsI(Tl) crystals in a previous study is also discussed. Residual differences between the simulation and the measurements can potentially be attributed to the scattering of scintillation photons inside the materials used. Additional measurements to further advance the construction of the simulation model are suggested.

KW - Calorimeters

KW - Scintillators

KW - Absorption length

KW - Surface topography

KW - Simulation of light transport

U2 - 10.1016/j.nima.2021.165302

DO - 10.1016/j.nima.2021.165302

M3 - Article

VL - 1003

JO - Nuclear Instruments & Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment

JF - Nuclear Instruments & Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment

SN - 0168-9002

M1 - 165302

ER -