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Updated: Jun 2, 2025

Irradiator Commissioning and Dosimetry for Assessment of LQ α and β Parameters, Radiation Dosing Schema, and in vivo Dose Deposition
Published on: March 11, 2021
Radiation efficiency varying equivalent radiated power
Kristian Kvist1, Sergey V Sorokin1, Jan Balle Larsen2
1Department of Materials and Production, Aalborg University, Aalborg, 9220, Denmark.
Abstract:
In this paper, an improved version of the classical equivalent radiated power (ERP) approximation is proposed based on principled physical arguments. A geometry-, frequency-, and vibration pattern-dependent approximation of radiation efficiency is developed and used as a corrective factor for the classical ERP approximation. The proposed method called "radiation efficiency varying equivalent radiated power" (revERP), is shown to greatly improve the accuracy of classical ERP at low Helmholtz numbers, while attaining the accuracy of classical ERP at high Helmholtz numbers. The revERP method is exemplified on several components of industrial complexity, and shows a valuable alternative to full vibro-acoustic finite element analysis for early-stage assessment of acoustic performance.
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