arXiv Open Access 2021

Bayesian inference of 1D activity profiles from segmented gamma scanning of a heterogeneous radioactive waste drum

Eric Laloy Bart Rogiers An Bielen Sven Boden

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Abstrak

We present a Bayesian approach to probabilistically infer vertical activity profiles within a radioactive waste drum from segmented gamma scanning (SGS) measurements. Our approach resorts to Markov chain Monte Carlo (MCMC) sampling using the state-of-the-art Hamiltonian Monte Carlo (HMC) technique and accounts for two important sources of uncertainty: the measurement uncertainty and the uncertainty in the source distribution within the drum. In addition, our efficiency model simulates the contributions of all considered segments to each count measurement. Our approach is first demonstrated with a synthetic example, after which it is used to resolve the vertical activity distribution of 5 nuclides in a real waste package.

Topik & Kata Kunci

physics.data-an physics.ins-det

Penulis (4)

Eric Laloy

Bart Rogiers

An Bielen

Sven Boden

Format Sitasi

APA MLA BibTeX

Laloy, E., Rogiers, B., Bielen, A., Boden, S. (2021). Bayesian inference of 1D activity profiles from segmented gamma scanning of a heterogeneous radioactive waste drum. https://arxiv.org/abs/2101.02112

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Informasi Jurnal

Tahun Terbit: 2021
Bahasa: en
Sumber Database: arXiv
Akses: Open Access ✓