Results 61 to 70 of about 727,683 (238)

Advances in Halide Perovskites for Photon Radiation Detectors

open access: yesAdvanced Materials Technologies, EarlyView.
This work highlights recent progress in perovskite‐based photon radiation detectors, covering organic–inorganic hybrid, inorganic, lead‐free double, and vacancy‐ordered halide perovskites. Their detection performance is compared, material‐specific advantages and challenges are examined, and provides insight into current limitations and future ...
Liangling Wang   +3 more
wiley   +1 more source

First Images of a Three-layer Compton Telescope Prototype for Treatment Monitoring in Hadron Therapy

open access: yesFrontiers in Oncology, 2016
A Compton telescope for dose monitoring in hadron therapy is under development at IFIC. The system consists of three layers of LaBr3 crystals coupled to silicon photomultiplier arrays.
Gabriela eLlosa   +9 more
doaj   +1 more source

Structure‐Function Integration in 2D Hybrid Perovskite for Fast Neutron and Gamma Ray Discrimination

open access: yesAdvanced Science, EarlyView.
Using an in situ seed‐assisted cooling method, large (28 × 7 × 3 mm3) (GABA)2PbBr4 single crystals are grown, featuring hydrogen‐rich organic layers and a dense PbBr4 framework. This architecture enables efficient γ‐ray absorption, fast‐neutron sensitivity, and clear n/γ pulse‐shape discrimination (FOM up to 1.74), highlighting its potential as a ...
Yingming Wang   +15 more
wiley   +1 more source

Portable Compton Camera for Enhanced Radioactive Waste Management [PDF]

open access: yesEPJ Web of Conferences
The accurate characterization and management of radioactive waste are critical for the safe operation and decommissioning of nuclear facilities. This proceeding summarizes the development, validation, and performance evaluation of a novel Compton-imaging
Babiano-Suárez Víctor   +4 more
doaj   +1 more source

Very High-Energy Gamma-Ray Observations of PSR B1509-58 with the CANGAROO 3.8m Telescope [PDF]

open access: yes, 2000
The gamma-ray pulsar PSR B1509-58 and its surrounding nebulae have been observed with the CANGAROO 3.8m imaging atmospheric Cherenkov telescope. The observations were performed from 1996 to 1998 in Woomera, South Australia, under different instrumental ...
A. Kawachi   +43 more
core   +2 more sources

Quantitative Stain Mapping in X‐Ray Virtual Histology

open access: yesAdvanced Science, EarlyView.
Virtual histology promises 3D tissue examination without physical sectioning, yet has lacked the tissue‐specificity of conventional pathology. This work demonstrates the first quantitative three‐dimensional stain mapping at histologically relevant resolution, separating contrast agent from tissue to reveal cellular features such as nuclei. The approach
Dominik John   +16 more
wiley   +1 more source

Visualization of radioactive contamination around the startup transformer of the Fukushima Daiichi Nuclear Power Station Unit 3 using an integrated Radiation Imaging System based on a Compton camera

open access: yesJournal of Nuclear Science and Technology
Understanding the distribution of radioactive substances and dose-equivalent rates during the decommissioning of the Fukushima Daiichi Nuclear Power Station (FDNPS) is crucial for developing detailed decontamination plans and minimizing worker exposure ...
Y. Sato, Y. Terasaka, Y. Ichiba
semanticscholar   +1 more source

Radiation measurement and imaging using 3D position sensitive pixelated CZT detector

open access: yesNuclear Engineering and Technology, 2019
In this study, we evaluated the performance of a commercial pixelated cadmium zinc telluride (CZT) detector for spectroscopy and identified its feasibility as a Compton camera for radiation monitoring in a nuclear power plant.
Younghak Kim, Taewoong Lee, Wonho Lee
doaj   +1 more source

Non-parametric deprojection of NIKA SZ observations: Pressure distribution in the Planck-discovered cluster PSZ1 G045.85+57.71 [PDF]

open access: yes, 2016
The determination of the thermodynamic properties of clusters of galaxies at intermediate and high redshift can bring new insights into the formation of large-scale structures.
Adam, R.   +40 more
core   +5 more sources

SPEIR: A Ge Compton Camera

open access: yes, 2004
The SPEctroscopic Imager for {gamma}-Rays (SPEIR) is a new concept of a compact {gamma}-ray imaging system of high efficiency and spectroscopic resolution with a 4-{pi} field-of-view. The system behind this concept employs double-sided segmented planar Ge detectors accompanied by the use of list-mode photon reconstruction methods to create a sensitive,
Mihailescu, L   +4 more
openaire   +3 more sources

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