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Your search keyword '"Metzkes-Ng, J."' showing total 2 results
Start Over Author "Metzkes-Ng, J." Topic bremsstrahlung
2 results on '"Metzkes-Ng, J."'

1. Data publication: Calorimeter with Bayesian unfolding of spectra of high-flux broadband X-rays

Author

Laso García, A., Hannasch, A., Molodtsova, M., Ferrari, A., Couperus Cabadağ, J. P., Downer, M. C., Irman, A., Kraft, S., Metzkes-Ng, J., Naumann, L., Prencipe, I., Schramm, U., Zeil, K., Zgadzaj, R., Ziegler, T., and Cowan, T.

Subjects
ComputingMethodologies_PATTERNRECOGNITION, Bremsstrahlung, Astrophysics::High Energy Astrophysical Phenomena, X-rays, MathematicsofComputing_NUMERICALANALYSIS, Technique and instrumentation, Relativistic laser plasmas
Abstract

Data for the publication: Calorimeter with Bayesian unfolding of spectra of high-flux broadband X-rays Containing: - Raw datasets - Source code for extracting calibrated energy information from datasets - Source code for simulations - Source code for unfolding of spectra

Published
2022

2. Calorimeter with Bayesian unfolding of spectra of high-flux broadband x rays.

Author

Laso Garcia, A., Hannasch, A., Molodtsova, M., Ferrari, A., Couperus Cadabağ, J. P., Downer, M. C., Irman, A., Kraft, S. D., Metzkes-Ng, J., Naumann, L., Prencipe, I., Schramm, U., Zeil, K., Zgadzaj, R., Ziegler, T., and Cowan, T. E.

Subjects
ELECTRON temperature, X-ray spectra, CALORIMETERS, BREMSSTRAHLUNG, X-rays
Abstract

We report the development of a multipurpose differential x-ray calorimeter with a broad energy bandwidth. The absorber architecture is combined with a Bayesian unfolding algorithm to unfold high energy x-ray spectra generated in high-intensity laser–matter interactions. Particularly, we show how to extract absolute energy spectra and how our unfolding algorithm can reconstruct features not included in the initial guess. The performance of the calorimeter is evaluated via Monte Carlo generated data. The method accuracy to reconstruct electron temperatures from bremsstrahlung is shown to be 5% for electron temperatures from 1 to 50 MeV. We study bremsstrahlung generated in solid target interaction showing an electron temperature of 0.56 ± 0.04 MeV for a 700 μm Ti titanium target and 0.53 ± 0.03 MeV for a 50 μm target. We investigate bremsstrahlung from a target irradiated by laser-wakefield accelerated electrons showing an endpoint energy of 551 ± 5 MeV, inverse Compton generated x rays with a peak energy of 1.1 MeV, and calibrated radioactive sources. The total energy range covered by all these sources ranges from 10 keV to 551 MeV. [ABSTRACT FROM AUTHOR]

Published
2022
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