The response of lead-tungstate scintillators (PWO) to photons with energies in the range 13 MeV-64 MeV

K. Marcks von Wurtemberg; L. Geren; O. Lundberg; P-E. Tegner; K. Fransson; S. Grape; T. Johansson; E. Thome; M. Wolke; Jason Brudvik; Kevin Fissum; Kurt Hansen; Lennart Isaksson; Magnus Lundin; Bent Schröder

doi:10.1016/j.nima.2012.03.030

The response of lead-tungstate scintillators (PWO) to photons with energies in the range 13 MeV-64 MeV

K. Marcks von Wurtemberg, L. Geren, O. Lundberg, P-E. Tegner, K. Fransson, S. Grape, T. Johansson, E. Thome, M. Wolke, Jason Brudvik, Kevin Fissum, Kurt Hansen, Lennart Isaksson, Magnus Lundin, Bent Schröder

MAX IV Laboratory

Research output: Contribution to journal › Article › peer-review

Abstract

The response of a matrix of 25 lead tungstate (PWO) scintillator detectors, operated at -25 degrees C, to photons in the range 13 MeV-64 MeV has been measured at the tagged-photon facility at MAX-lab, Lund. The tapered PWO crystals, each with a length of 200 mm and a cross-section of 24.4 x 24.4 mm(2) in the front end, read out by 19 mm photomultiplier tubes, were arranged in a 5 x 5 matrix. The response was measured for photons directed towards the centre of the central crystal as well as for photons directed towards the corner of the central crystal, where four crystals meet. The obtained energy resolution surpasses what has been published so far and is close to the limit given by Poisson statistics and escaped energy. For photons directed towards the centre(corner) of the central crystal the relative energy resolution, defined as (FWHM/2.35)/E-gamma, decreases from 7.3%(11.0%) at E-gamma = 13 MeV to 3.3%(3.6%) at E-gamma = 64 MeV. The reconstructed point of impact of a photon in this energy range is determined with an uncertainty (one standard deviation) of 7.3 +/- 0.1 mm. (C) 2012 Elsevier B.V. All rights reserved.

Original language	English
Pages (from-to)	36-43
Journal	Nuclear Instruments & Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment
Volume	679
DOIs	https://doi.org/10.1016/j.nima.2012.03.030
Publication status	Published - 2012

Subject classification (UKÄ)

Subatomic Physics

Free keywords

Lead tungstate
PWO scintillators
Electromagnetic calorimeter
PANDA
Tagged photons

Access to Document

10.1016/j.nima.2012.03.030

Development of Radiation Detectors and Radiation-Detection Techniques
Fissum, K. (Researcher), Perrey, H. (Researcher), Scherzinger, J. (Researcher), Messi, F. (Researcher) & Mauritzson, N. (Researcher)
1996/01/01 → …
Project: Research

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von Wurtemberg, K. M., Geren, L., Lundberg, O., Tegner, P.-E., Fransson, K., Grape, S., Johansson, T., Thome, E., Wolke, M., Brudvik, J., Fissum, K., Hansen, K., Isaksson, L., Lundin, M., & Schröder, B. (2012). The response of lead-tungstate scintillators (PWO) to photons with energies in the range 13 MeV-64 MeV. Nuclear Instruments & Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment, 679, 36-43. https://doi.org/10.1016/j.nima.2012.03.030

@article{9d37e1d721d446fda57607c3b9460c93,

title = "The response of lead-tungstate scintillators (PWO) to photons with energies in the range 13 MeV-64 MeV",

abstract = "The response of a matrix of 25 lead tungstate (PWO) scintillator detectors, operated at -25 degrees C, to photons in the range 13 MeV-64 MeV has been measured at the tagged-photon facility at MAX-lab, Lund. The tapered PWO crystals, each with a length of 200 mm and a cross-section of 24.4 x 24.4 mm(2) in the front end, read out by 19 mm photomultiplier tubes, were arranged in a 5 x 5 matrix. The response was measured for photons directed towards the centre of the central crystal as well as for photons directed towards the corner of the central crystal, where four crystals meet. The obtained energy resolution surpasses what has been published so far and is close to the limit given by Poisson statistics and escaped energy. For photons directed towards the centre(corner) of the central crystal the relative energy resolution, defined as (FWHM/2.35)/E-gamma, decreases from 7.3%(11.0%) at E-gamma = 13 MeV to 3.3%(3.6%) at E-gamma = 64 MeV. The reconstructed point of impact of a photon in this energy range is determined with an uncertainty (one standard deviation) of 7.3 +/- 0.1 mm. (C) 2012 Elsevier B.V. All rights reserved.",

keywords = "Lead tungstate, PWO scintillators, Electromagnetic calorimeter, PANDA, Tagged photons",

author = "{von Wurtemberg}, {K. Marcks} and L. Geren and O. Lundberg and P-E. Tegner and K. Fransson and S. Grape and T. Johansson and E. Thome and M. Wolke and Jason Brudvik and Kevin Fissum and Kurt Hansen and Lennart Isaksson and Magnus Lundin and Bent Schr{\"o}der",

year = "2012",

doi = "10.1016/j.nima.2012.03.030",

language = "English",

volume = "679",

pages = "36--43",

journal = "Nuclear Instruments & Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment",

issn = "0167-5087",

publisher = "Elsevier",

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von Wurtemberg, KM, Geren, L, Lundberg, O, Tegner, P-E, Fransson, K, Grape, S, Johansson, T, Thome, E, Wolke, M, Brudvik, J, Fissum, K, Hansen, K, Isaksson, L, Lundin, M & Schröder, B 2012, 'The response of lead-tungstate scintillators (PWO) to photons with energies in the range 13 MeV-64 MeV', Nuclear Instruments & Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment, vol. 679, pp. 36-43. https://doi.org/10.1016/j.nima.2012.03.030

The response of lead-tungstate scintillators (PWO) to photons with energies in the range 13 MeV-64 MeV. / von Wurtemberg, K. Marcks; Geren, L.; Lundberg, O. et al.
In: Nuclear Instruments & Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment, Vol. 679, 2012, p. 36-43.

Research output: Contribution to journal › Article › peer-review

TY - JOUR

T1 - The response of lead-tungstate scintillators (PWO) to photons with energies in the range 13 MeV-64 MeV

AU - von Wurtemberg, K. Marcks

AU - Geren, L.

AU - Lundberg, O.

AU - Tegner, P-E.

AU - Fransson, K.

AU - Grape, S.

AU - Johansson, T.

AU - Thome, E.

AU - Wolke, M.

AU - Brudvik, Jason

AU - Fissum, Kevin

AU - Hansen, Kurt

AU - Isaksson, Lennart

AU - Lundin, Magnus

AU - Schröder, Bent

PY - 2012

Y1 - 2012

N2 - The response of a matrix of 25 lead tungstate (PWO) scintillator detectors, operated at -25 degrees C, to photons in the range 13 MeV-64 MeV has been measured at the tagged-photon facility at MAX-lab, Lund. The tapered PWO crystals, each with a length of 200 mm and a cross-section of 24.4 x 24.4 mm(2) in the front end, read out by 19 mm photomultiplier tubes, were arranged in a 5 x 5 matrix. The response was measured for photons directed towards the centre of the central crystal as well as for photons directed towards the corner of the central crystal, where four crystals meet. The obtained energy resolution surpasses what has been published so far and is close to the limit given by Poisson statistics and escaped energy. For photons directed towards the centre(corner) of the central crystal the relative energy resolution, defined as (FWHM/2.35)/E-gamma, decreases from 7.3%(11.0%) at E-gamma = 13 MeV to 3.3%(3.6%) at E-gamma = 64 MeV. The reconstructed point of impact of a photon in this energy range is determined with an uncertainty (one standard deviation) of 7.3 +/- 0.1 mm. (C) 2012 Elsevier B.V. All rights reserved.

AB - The response of a matrix of 25 lead tungstate (PWO) scintillator detectors, operated at -25 degrees C, to photons in the range 13 MeV-64 MeV has been measured at the tagged-photon facility at MAX-lab, Lund. The tapered PWO crystals, each with a length of 200 mm and a cross-section of 24.4 x 24.4 mm(2) in the front end, read out by 19 mm photomultiplier tubes, were arranged in a 5 x 5 matrix. The response was measured for photons directed towards the centre of the central crystal as well as for photons directed towards the corner of the central crystal, where four crystals meet. The obtained energy resolution surpasses what has been published so far and is close to the limit given by Poisson statistics and escaped energy. For photons directed towards the centre(corner) of the central crystal the relative energy resolution, defined as (FWHM/2.35)/E-gamma, decreases from 7.3%(11.0%) at E-gamma = 13 MeV to 3.3%(3.6%) at E-gamma = 64 MeV. The reconstructed point of impact of a photon in this energy range is determined with an uncertainty (one standard deviation) of 7.3 +/- 0.1 mm. (C) 2012 Elsevier B.V. All rights reserved.

KW - Lead tungstate

KW - PWO scintillators

KW - Electromagnetic calorimeter

KW - PANDA

KW - Tagged photons

U2 - 10.1016/j.nima.2012.03.030

DO - 10.1016/j.nima.2012.03.030

M3 - Article

SN - 0167-5087

VL - 679

SP - 36

EP - 43

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

ER -

The response of lead-tungstate scintillators (PWO) to photons with energies in the range 13 MeV-64 MeV

Abstract

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Development of Radiation Detectors and Radiation-Detection Techniques

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