Detection efficiency calculation for photons, electrons and positrons in a well detector.: Part II: Analytical model versus simulations

Stefaan Pommé; Goedele Sibbens; Tim Vidmar; Johan Camps; Virginia Peyres

doi:10.1016/j.nima.2009.04.007

Detection efficiency calculation for photons, electrons and positrons in a well detector. Part II: Analytical model versus simulations

Stefaan Pommé, Goedele Sibbens, Tim Vidmar, Johan Camps, Virginia Peyres

Research output › peer-review

Abstract

A comparison is made between the results of Monte Carlo simulations and a new analytical model (cf. Part I) for the detection efficiency of a well-type NaI detector for photons, electrons and positrons in the energy range of 0.01 MeV-10 MeV. Using MCNP 5.1.40, GEANT3 and PENELOPE simulation results as benchmark, it was found that the analytical model was quite successful at reproducing the total detection efficiency for photons and positrons, and at giving rough indications on the photon peak-to-total ratio and the electron detection efficiency. It was also able to deal with cylindrical volume sources and vials, eccentric positioning of the source inside the detector well and the possible contribution of scattering or pair production in the surrounding lead shield.

Original language	English
Pages (from-to)	501-507
Number of pages	7
Journal	Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume	606
Issue number	3
DOIs	https://doi.org/10.1016/j.nima.2009.04.007
State	Published - Jul 2009

ASJC Scopus subject areas

Nuclear and High Energy Physics
Instrumentation

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Cite this

Pommé, S., Sibbens, G., Vidmar, T., Camps, J., & Peyres, V. (2009). Detection efficiency calculation for photons, electrons and positrons in a well detector. Part II: Analytical model versus simulations. Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 606(3), 501-507. https://doi.org/10.1016/j.nima.2009.04.007

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abstract = "A comparison is made between the results of Monte Carlo simulations and a new analytical model (cf. Part I) for the detection efficiency of a well-type NaI detector for photons, electrons and positrons in the energy range of 0.01 MeV-10 MeV. Using MCNP 5.1.40, GEANT3 and PENELOPE simulation results as benchmark, it was found that the analytical model was quite successful at reproducing the total detection efficiency for photons and positrons, and at giving rough indications on the photon peak-to-total ratio and the electron detection efficiency. It was also able to deal with cylindrical volume sources and vials, eccentric positioning of the source inside the detector well and the possible contribution of scattering or pair production in the surrounding lead shield.",

keywords = "Efficiency, Modelling, Nuclear, Photons, Simulation, Well detector",

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Pommé, S, Sibbens, G, Vidmar, T , Camps, J & Peyres, V 2009, 'Detection efficiency calculation for photons, electrons and positrons in a well detector. Part II: Analytical model versus simulations', Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, vol. 606, no. 3, pp. 501-507. https://doi.org/10.1016/j.nima.2009.04.007

Detection efficiency calculation for photons, electrons and positrons in a well detector. Part II: Analytical model versus simulations. / Pommé, Stefaan; Sibbens, Goedele; Vidmar, Tim et al.
In: Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 606, No. 3, 07.2009, p. 501-507.

Research output › peer-review

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T1 - Detection efficiency calculation for photons, electrons and positrons in a well detector.

T2 - Part II: Analytical model versus simulations

AU - Pommé, Stefaan

AU - Sibbens, Goedele

AU - Vidmar, Tim

AU - Camps, Johan

AU - Peyres, Virginia

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AB - A comparison is made between the results of Monte Carlo simulations and a new analytical model (cf. Part I) for the detection efficiency of a well-type NaI detector for photons, electrons and positrons in the energy range of 0.01 MeV-10 MeV. Using MCNP 5.1.40, GEANT3 and PENELOPE simulation results as benchmark, it was found that the analytical model was quite successful at reproducing the total detection efficiency for photons and positrons, and at giving rough indications on the photon peak-to-total ratio and the electron detection efficiency. It was also able to deal with cylindrical volume sources and vials, eccentric positioning of the source inside the detector well and the possible contribution of scattering or pair production in the surrounding lead shield.

KW - Efficiency

KW - Modelling

KW - Nuclear

KW - Photons

KW - Simulation

KW - Well detector

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Pommé S, Sibbens G, Vidmar T , Camps J, Peyres V. Detection efficiency calculation for photons, electrons and positrons in a well detector. Part II: Analytical model versus simulations. Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 2009 Jul;606(3):501-507. doi: 10.1016/j.nima.2009.04.007