Results 31 to 40 of about 27,496 (250)

Photon and Neutron Dose Estimation Using Monte Carlo Simulation in TrueBeam’s Room

open access: yesJournal of Medical Physics
Purpose: The distribution of neutron ambient dose equivalent within the TrueBeam 10 MV photon chamber was investigated. Materials and Methods: The research used particle and heavy ion transport code system (PHITS) code and JENDL-5.0 to simulate the ...
Soai Dang Quoc   +3 more
doaj   +1 more source

Stability of Calibration Factors of Survey Meters: A Five-Year Comparative Study [PDF]

open access: yesIranian Journal of Medical Physics
Introduction: Analysis of historical calibration data can reveal a lot about survey meters. The study aims to analyse a five-year historical calibration data of selected survey meters for the stability of indication or otherwise.
Collins AZAH   +8 more
doaj   +1 more source

A Study of Stray Neutron Field Measurements for the Neutron Scattering Instruments at CSNS

open access: yesApplied Sciences, 2022
Stray neutrons might cause several negative impacts. However, it is usually difficult to conduct precise stray neutron simulations using the Monte Carlo method.
Bin Zhou   +5 more
doaj   +1 more source

Using a portable gamma-ray spectrometer to estimate the external exposure for a subway passenger

open access: yesРадиационная гигиена
The subway (metro) is a popular form of public transportation system in many large cities. While in the subway territory (one of the locations in the city), a passenger is inevitably exposed to external irradiation from natural (terrigenous) sources of ...
V. P. Ramzaev, A. N. Barkovsky
doaj   +1 more source

EVALUATION OF AMBIENT DOSE EQUIVALENT SURROUNDING TRANSMISSION FULL-BODY SCANNERS

open access: yesRadiation Protection Dosimetry, 2020
Abstract This study analyses the ambient dose equivalent around transmission full-body scanners used in Brazilian prisons and airports. In order to achieve this goal, three transmission full-body scanners of the same model assembled by a Brazilian manufacturer were evaluated.
Caio Caraciolo Rodrigues Elias   +6 more
openaire   +2 more sources

Study of D-D neutron generator radiation protection based on Monte Carlo method

open access: yes四川大学学报. 自然科学版, 2023
The deuterium-deuterium(D-D) neutron generator is a common neutron source for fast neutron activation analysis. It has broad application prospects in the field of neutron technology applications, such as neutron photography, neutron activation analysis ...
XU Hao-Bo   +3 more
doaj  

Dosimetry and radioprotection evaluations of very high energy electron beams

open access: yesScientific Reports, 2021
Very high energy electrons (VHEEs) represent a promising alternative for the treatment of deep-seated tumors over conventional radiotherapy (RT), owing to their favourable dosimetric characteristics.
Thongchai A. M. Masilela   +2 more
doaj   +1 more source

Uniform Amorphization of Crystalline Silicon Surfaces Enabled by Deep Ultraviolet Femtosecond Laser Pulses

open access: yesAdvanced Engineering Materials, EarlyView.
Deep‐UV (258 nm) femtosecond pulses enable uniform amorphous silicon writing on Si(100)/(111) with a six‐fold larger fluence amorphization window than NIR methods. Optimized fluence and overlap yield 20–45 nm uniform and continuous amorphous layers. Microscopy shows sharp interfaces, and real‐time reflectivity reveals nanosecond melt–resolidification ...
Wissal Benali   +5 more
wiley   +1 more source

Ambient dose equivalent rate in the environment of objects and materials [PDF]

open access: yesProceedings 11th International Conference IcETRAN 2024
Measurement of ambient dose equivalent rate in the environment of objects and materials is a dosimetric measurement which is carried out by controlling the radioactivity of goods during import, export and transit. The procedure must be carried out in order to prevent illegal traffic of radioactive and nuclear material across the border.
Marija Janković   +5 more
openaire   +1 more source

Superlubricity and Corrosion Inhibition Properties of Solvate Ionic Liquids in Hybrid Carbon Fiber Reinforced Plastic–Steel Interfaces

open access: yesAdvanced Engineering Materials, EarlyView.
Solvate ionic liquids lubrication reduced the coefficient of friction by ∼60% compared to dry sliding, reaching steady‐state values as low as 0.04–0.05. Corrosion weight‐loss measurements in 1 M HCl further demonstrated significant inhibition behavior, with only 100 ppm of [Li(G3)][TFSI] (∼68.5 μL/L) reducing corrosion‐product weight loss by 63 ...
Sameh Dabees   +6 more
wiley   +1 more source

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