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Optimization of the n-type HPGe detector parameters using the "design of experiments" technique

Arectout, A. (author)
Boukhal, H. (author)
Chakir, E. (author)
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Chham, E. (author)
Ferro-Garcia, M. A. (author)
Piñero-García, Francisco (author)
Gothenburg University,Göteborgs universitet,Institutionen för kliniska vetenskaper, Avdelningen för medicinsk strålningsvetenskap,Institute of Clinical Sciences, Department of Medical Radiation Sciences
Azahra, M. (author)
Makhloul, M. (author)
Azougagh, M. (author)
El Yaakoubi, H. (author)
Zidouh, I. (author)
Exposito-Suarez, V. M. (author)
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 (creator_code:org_t)
Elsevier BV, 2021
2021
English.
In: Radiation Physics and Chemistry. - : Elsevier BV. - 0969-806X. ; 189
  • Journal article (peer-reviewed)
Abstract Subject headings
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  • This paper presents a new procedure to optimize the geometric parameters of a n-type coaxial HPGe detector. It is based on a statistical technique called "Design of Experiments" (DoE). This technique aims to identify the most influential parameters and to determine the optimal configuration. In this work, The effects of each parameter on the detector responses have been investigated by a fractional factorial design. Only the most influential factors contributing to the detector response have been selected. Precise modeling of these factors was then performed using a full factorial design. Based on the results obtained from this design, the full energy peak efficiencies according to the geometric parameters were modeled by a multiple-linear regression. These models have been statistically validated by analysis of variance (ANOVA). The optimal combination of the geometric parameters has been identified using the desirability function approach, which is a useful tool to optimize multi-response problems. A verification test was performed to validate the results obtained. It was observed that the relative deviation found between experimental and simulated values was less than 5%.

Subject headings

MEDICIN OCH HÄLSOVETENSKAP  -- Klinisk medicin -- Radiologi och bildbehandling (hsv//swe)
MEDICAL AND HEALTH SCIENCES  -- Clinical Medicine -- Radiology, Nuclear Medicine and Medical Imaging (hsv//eng)

Keyword

GAMOS code
Detector response
Design of experiments
Multi-response
optimization
ANOVA test
Desirability function
monte-carlo-simulation
energy peak efficiency
dead layer thickness
Chemistry
Nuclear Science & Technology
Physics

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ref (subject category)
art (subject category)

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