Results 81 to 90 of about 200,100 (292)

Dual-mode operation of a neutron source, a concept [PDF]

open access: yes, 1969
Pulsed neutron source operates in conjunction with a photomultiplier tube coupled to a gamma ray scintillation crystal. This allows measurements of gamma radiation from both inelastic scattering and thermal neutron capture in a single ...
Givens, W. W., Mills, W. R., Jr.
core   +1 more source

Flexible and High‐Performance Perovskite‐Polymer Composites for Dual X‐Ray and Proton Direct Detection

open access: yesAdvanced Optical Materials, EarlyView.
A polymer–perovskite composite obtained by mechanochemical synthesis enables thick, tunable active layers for efficient absorption of highly penetrating ionizing radiation. Vertical‐electrode detectors achieve low X‐ray detection limits and high sensitivity direct 5 MeV proton sensing.
Camilla Bordoni   +9 more
wiley   +1 more source

The microscopic origin of thermal cracking in rocks: An investigation by simultaneous time-of-flight neutron diffraction and acoustic emission monitoring [PDF]

open access: yes, 2001
We demonstrate that neutron diffraction measurements make it possible to quantify elastic strains within the interior of solid samples, and thus have great potential for addressing a wide range of problems connected with the characterization of the ...
Boon, SA   +3 more
core  

Deep VLT infrared observations of X-ray Dim Isolated Neutron Stars

open access: yes, 2007
X-ray observations have unveiled the existence of a family of radio-quiet Isolated Neutron Stars whose X-ray emission is purely thermal, hence dubbed X-ray Dim Isolated Neutron Stars (XDINSs). While optical observations have allowed to relate the thermal
Curto, G. Lo   +3 more
core   +1 more source

Nanocrystal Quality–Controlled Scintillation in Porous YAG:Ce Aerogels

open access: yesAdvanced Optical Materials, EarlyView.
High‐temperature thermal treatment of YAG:Ce nanoscintillator aerogels increases light yield under ionizing radiation by up to eightfold without affecting timing performance. Additionally, low‐temperature atmospheric treatments reversibly modify the cerium oxidation state, revealing strong defect sensitivity and offering new strategies to optimize ...
Pavlo Mai   +11 more
wiley   +1 more source

A new active thermal neutron detector

open access: yesRadiation Protection Dosimetry, 2013
This communication presents the main results about the design and in-house fabrication of a new solid-state neutron detector, which produces a DC output signal proportional to the thermal neutron fluence rate. The detector has been developed within the framework of the 3-y project NESCOFI@BTF of INFN (CSN V).
Bedogni, R.   +8 more
openaire   +2 more sources

Displacive In‐Plane Ferroelectricity with Domain‐Specific Curie Temperature in Van der Waals Semiconductors

open access: yesAdvanced Science, EarlyView.
Temperature‐dependent electron diffraction on tin monochalcogenides demonstrates a gradual displacive transformation between ferroelectric and paraelectric phases with significant variability in lattice constants and Curie temperature (TC). Periodic variations exist even between domains in individual crystals, implying a domain‐specific Curie ...
Peter Sutter, Eli Sutter
wiley   +1 more source

Fabrication and Performance of Single-crystal Diamond Neutron Detector with 6LiF Thermal Neutron Converter

open access: yesYuanzineng kexue jishu
Neutron detectors with excellent resolution, responsiveness, and radiation tolerance are desperately needed in the field of neutron monitoring. Diamond material has several advantages such as a wide bandgap, strong radiation tolerance, and high carrier ...
WANG Libin1, 2, ZHANG Yiyun3, LI Haijun2, MA Zhihai2, XI Shanxue2, LIU Huilan1, SONG Yushou1, , ZHOU Chunzhi2
doaj   +1 more source

Delayed neutron yield measurement on thermal neutron induced fission of 237Np using cross-correlation technique [PDF]

open access: yesЯдерна фізика та енергетика, 2009
The measurement procedure based on the continuous thermal neutron beam modulation with a mechanical chopper was developed for delayed neutron yield measurement of the thermal neutron induced fission of 237Np. The idea of the procedure is similar to that,
Sh. S. Zeynalov   +2 more
doaj  

Measurement of neutron spectra in liquid hydrogen Quarterly progress report, period ending Dec. 17, 1965 [PDF]

open access: yes
Neutron spectra measurement in liquid hydrogen, water cooled fast neutron source, thermal neutron measurements, and liquid hydrogen facility checkout using ...
Profio, A. E., Trimble, G. D.
core   +1 more source

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