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Akademický článek

Geographic Information System (GIS) as a basis for the next generation of hydrogeological models to manage the geothermal area Waiwera (New Zealand)

Autor: M. Kühn, M. Präg, I. Becker, C. Hilgers, A. Grafe, T. Kempka

Publikováno v: Advances in Geosciences, Vol 58, Pp 31-39 (2022)

The geothermal hot water reservoir below the small town of Waiwera in New Zealand has been known to the indigenous Māori for many centuries. Overproduction by European immigrants led to a water level decrease and consequently artesian flow from the

Externí odkaz: https://doaj.org/article/36c171128a5b40e784dadfc4ff0052fd

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Akademický článek

Thermal UAS survey of reactivated hot spring activity in Waiwera, New Zealand

Autor: M. Präg, I. Becker, C. Hilgers, T. R. Walter, M. Kühn

Publikováno v: Advances in Geosciences, Vol 54, Pp 165-171 (2020)

The utilization of geothermal reservoirs as alternative energy source is becoming increasingly important worldwide. Through close-range aerial photogrammetry realized by unmanned aircraft systems (UAS), this study investigates the surface expression

Externí odkaz: https://doaj.org/article/7262046ebdcc4e4586c1a2d0812ba33d

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Akademický článek

Characterization of the on-board megavoltage imager in a magnetic resonance-guided radiotherapy machine for beam output checks

Autor: Guido C. Hilgers, Marijke Ikink, Ilona Potters, Danny Schuring, André W. Minken

Publikováno v: Physics and Imaging in Radiation Oncology, Vol 29, Iss , Pp 100558- (2024)

We characterized the on-board megavoltage imager (MVI) of a magnetic resonance-guided radiotherapy machine for beam output checks. Linearity and repeatability of its dose response were investigated. Alignment relative to the beam under clinical circu

Externí odkaz: https://doaj.org/article/7326e319237f4ffc955771e757841cd3

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Akademický článek

Survey on fan-beam computed tomography for radiotherapy: Current implementation and future perspectives of motion management and surface guidance devices

Autor: Chrysi Papalazarou, Sima Qamhiyeh, Robert Kaatee, Joke De Rouck, Esther Decabooter, Guido C. Hilgers, Koen Salvo, Jacobus van Wingerden, Hilde Bosmans, Brent van der Heyden, Geert Pittomvils, Evelien Bogaert

Publikováno v: Physics and Imaging in Radiation Oncology, Vol 29, Iss , Pp 100523- (2024)

Background and purpose: This work reports on the results of a survey performed on the use of computed tomography (CT) imaging for motion management, surface guidance devices, and their quality assurance (QA). Additionally, it details the collected us

Externí odkaz: https://doaj.org/article/564e767dea6c40fe9293eb09eb2fda47

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Akademický článek

Survey on fan-beam computed tomography for radiotherapy: Imaging for dose calculation and delineation

Autor: Esther Decabooter, Guido C. Hilgers, Joke De Rouck, Koen Salvo, Jacobus Van Wingerden, Hilde Bosmans, Brent van der Heyden, Sima Qamhiyeh, Chrysi Papalazarou, Robert Kaatee, Geert Pittomvils, Evelien Bogaert

Publikováno v: Physics and Imaging in Radiation Oncology, Vol 29, Iss , Pp 100522- (2024)

Background and purpose: To obtain an understanding of current practice, professional needs and future directions in the field of fan-beam CT in RT, a survey was conducted. This work presents the collected information regarding the use of CT imaging f

Externí odkaz: https://doaj.org/article/ac10b642efba489d9946272ff0b209fc

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Akademický článek

Beam output checks of a commercial high-field magnetic resonance-guided radiotherapy machine with its on-board megavoltage imager

Autor: Guido C. Hilgers, Marijke Ikink, Ilona Potters, Danny Schuring

Publikováno v: Physics and Imaging in Radiation Oncology, Vol 25, Iss , Pp 100411- (2023)

Beam output checks of a commercial high-field magnetic resonance-guided radiotherapy machine can be performed with its on-board megavoltage imager (MVI). This is a fast and efficient method, but only recommended for daily checks. The aim of our study

Externí odkaz: https://doaj.org/article/82a48ee3a65d4489a4f201766f5aceac

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