Results 71 to 80 of about 161,035 (283)

Comparison of different methods for post-therapeutic dosimetry in [177Lu]Lu-PSMA-617 radioligand therapy

EJNMMI Physics, 2021
Background Dosimetry is of high importance for optimization of patient-individual PSMA-targeted radioligand therapy (PSMA-RLT). The aim of our study was to evaluate and compare the feasibility of different approaches of image-based absorbed dose ...
Florian Rosar, Niklas Schön, Hendrik Bohnenberger, Mark Bartholomä, Tobias Stemler, Stephan Maus, Fadi Khreish, Samer Ezziddin, Andrea Schaefer-Schuler   +8 more
doaj   +1 more source

His+ reversions Caused in Salmonella typhimurium by different types of ionizing radiation [PDF]

, 1988
The yield of his+ reversions in the Ames Salmonella tester strain TA2638 has been determined for 60Co γ rays, 140 kV X rays, 5.4 keV characteristic X rays, 2.2 MeV protons, 3.1 MeV α particles, and 18 MeV/U Fe ions.
Fitzek, M., Kellerer, Albrecht M., Roos, H., Thomas, W.-H.   +3 more
core   +1 more source

Dental Rehabilitation After Bone Mandibular Reconstruction for Head and Neck Cancer: A GETTEC Multicenter Study

Head &Neck, EarlyView.
ABSTRACT Background The microvascular bone free flap (MBFF) is the preferred reconstruction after mandibular resection as it facilitates secondary dental rehabilitation. Methods In this multicenter study, patients were included if treated between January 2017 and January 2022 for head and neck cancer with MBFF reconstruction.
Roussel Lise‐Marie, Elaldi Roxane, Anquetil Marine, Lévêque Emilie, Babin Emmanuel, Bozec Alexandre, Lasne Cardon Audrey, Boulay Alexandre, Le Guyader Maud, Thureau Sébastien, Brenet Esteban, Clatot Florian   +11 more
wiley   +1 more source

Digital Twin and Physical Cyber Systems Applied to Ionizing Radiation: State of the Art in Metrology 4.0

Brazilian Journal of Radiation Sciences
The Fourth Industrial Revolution has brought society many benefits, such as technological advances, and many challenges to be overcome. To increase the synergy between physical and digital systems, most often used in the optimization processes of ...
Eric Matos Macedo, Igor Garcia, Fellipe Souza Silva, Jeovana Ferreira, Samuel Façanha Jr, Monaliza Almeida, José Guilherme Pereira Peixoto   +6 more
doaj   +1 more source

Radiological protection and certification for medical professionals in Brazil

Brazilian Journal of Radiation Sciences, 2018
Radiation protection is supported by three pillars: justification, optimization and dose limitation. The safe use of ionizing radiation is governed by the limits of public and occupational exposure, justification and optimization for medical exposures ...
CAMILLE Pinho Vieira DE CASTRO DA LUZ, Lidia Vasconcelos de Sá, José Ubiratan Delgado   +2 more
doaj   +1 more source

Nomogram for Predicting Osteoradionecrosis After Fibula Free Flap for Mandibular Reconstruction

Head &Neck, EarlyView.
ABSTRACT Background Osteoradionecrosis (ORN) is a severe complication following radiotherapy (RT), particularly after mandibular reconstruction with a fibula free flap. Risk prediction remains challenging due to limited data. Methods We conducted a multicenter retrospective study including 294 patients who underwent fibula free flap reconstruction and ...
Andrea Costantino, Bianca Festa, Filippo Marchi, Chung‐Kan Tsao, Raul Pellini, Luca Gazzini, Peter T. Dzięgielewski, Mario Ciniglio, Francesco Mazzola, Luca Calabrese, Antonio Sarno, Giampiero Parrinello, Linda Chow, Jyh‐Kwei Chen, Giorgio Peretti, Armando De Virgilio   +15 more
wiley   +1 more source

Operational intervention levels for reactor emergencies IAEA recommendations

Brazilian Journal of Radiation Sciences, 2018
The IAEA publication EPR-NPP-OILs-2017, OPERATIONAL INTERVENTION LEVELS FOR REACTOR EMERGENCIES AND METHODOLOGY FOR THEIR DERIVATION [1], provides selected default OIL values, describing a methodology for their derivation, as well as practical tools and ...
Lais Alencar de Aguiar, Arlene Alves dos Reis, Raul dos Santos   +2 more
doaj   +1 more source

Advanced dosimetry systems for the space transport and space station [PDF]

, 1972
Advanced dosimetry system concepts are described that will provide automated and instantaneous measurement of dose and particle spectra. Systems are proposed for measuring dose rate from cosmic radiation background to greater than 3600 rads/hr.
Clark, B. C., Schneider, M. F., Wailly, L. F.   +2 more
core   +1 more source

Deep learning–driven chromatic X‐ray imaging based on multicolor halide scintillation film stacks for quantitative densitometry

Information &Functional Materials, EarlyView.
The vapor‐deposited stacking strategy for multicolor halide scintillation films has been developed for chromatic X‐ray imaging, while enabling the systematic curation of a materials genome database. The effectiveness has been demonstrated through segmentation of complex circuit boards and 3D reconstruction of material density distributions.
Hao Wang, Shuai Zhang, Zhiguo Xia
wiley   +1 more source

Qualification of miniature fission chambers at high temperature in OSU Research Reactor [PDF]

EPJ Web of Conferences
With the renewed interest in Sodium Fast Reactors and Advanced Small modular reactors such as Molted Salt ones, there is a need for high temperature (600 °C) neutron instrumentation.
de Izarra Grégoire, Barbot Loïc, Tsai Kevin   +2 more
doaj   +1 more source