416 citations · 1k across the 15 of their papers we have counts for
16 papers
Double-GEM based thermal neutron detector prototype
L. A. Serra Filho, R. Felix dos Santos, G. G. A. de Souza +11
The Helium-3 shortage and the growing interest in neutron science constitute a driving factor in developing new neutron detection technologies. In this work, we report the developm…
Effect of substrate roughness and material selection on the microstructure of sputtering deposited boron carbide thin films
Chung-Chuan Lai, Robert Boyd, Per-Olof Svensson +4
Amorphous boron carbide (B4C) thin films are by far the most popular form for the neutron converting layers in the 10B-based neutron detectors, which are a rising trend in detector…
Towards high-rate RPC-based thermal neutron detectors using low-resistivity electrodes
L. M. S. Margato, A. Morozov, A. Blanco +12
We present experimental results on the counting rate measurements for several single-gap B lined resistive plate chambers (B-RPCs) with anodes made from standard floa…
Multi-Grid Detector for Neutron Spectroscopy: Results Obtained on Time-of-Flight Spectrometer CNCS
M. Anastasopoulos, R. Bebb, K. Berry +23
The Multi-Grid detector technology has evolved from the proof-of-principle and characterisation stages. Here we report on the performance of the Multi-Grid detector, the MG.CNCS pr…
Neutron reflectometry on highly absorbing films and its application to 10B4C-based neutron detectors
F. Piscitelli, A. Khaplanov, A. Devishvili +7
Neutron reflectometry is a powerful tool used for studies of surfaces and interfaces. In general the absorption in the typical studied materials can be neglected and this technique…
First Measurements with New High-Resolution Gadolinium-GEM Neutron Detectors
Dorothea Pfeiffer, Filippo Resnati, Jens Birch +12
European Spallation Source instruments like the macromolecular diffractometer, NMX, require an excellent neutron detection efficiency, high-rate capabilities, time resolution, and…
Investigation of background in large-area neutron detectors due to alpha emission from impurities in aluminium
J. Birch, J. -C. Buffet, J. -F. Clergeau +9
Thermal neutron detector based on films of BC have been developed as an alternative to He detectors. In particular, The Multi-Grid detector concept is considered for…
The uTPC Method: Improving the Position Resolution of Neutron Detectors Based on MPGDs
Dorothea Pfeiffer, Filippo Resnati, Jens Birch +8
Due to the Helium-3 crisis, alternatives to the standard neutron detection techniques are becoming urgent. In addition, the instruments of the European Spallation Source (ESS) requ…
Neutron Position Sensitive Detectors for the ESS
Oliver Kirstein, Richard Hall-Wilton, Irina Stefanescu +17
The European Spallation Source (ESS) in Lund, Sweden will become the world's leading neutron source for the study of materials. The instruments are being selected from conceptual p…
Multi-Grid Boron-10 detector for large area applications in neutron scattering science
Ken Andersen, Thierry Bigault, Jens Birch +12
The present supply of 3He can no longer meet the detector demands of the upcoming ESS facility and continued detector upgrades at current neutron sources. Therefore viable alternat…
The electronic structure of GaN and Ga investigated by soft x-ray spectroscopy and first-principles methods
Martin Magnuson, Maurizio Mattesini, Carina Höglund +2
The electronic structure and chemical bonding of wurtzite-GaN investigated by N 1s soft x-ray absorption spectroscopy and N K, Ga M1, and Ga M2,3 emission spectroscopy is compared…
Bonding mechanism in the nitrides Ti2AlN and TiN: an experimental and theoretical investigation
M. Magnuson, M. Mattesini, S. Li +4
The electronic structure of nanolaminate Ti2AlN and TiN thin films has been investigated by bulk-sensitive soft x-ray emission spectroscopy. The measured Ti L, N K, Al L1 and Al L2…
Electronic structure and chemical bonding anisotropy investigation of wurtzite AlN
M. Magnuson, M. Mattesini, C. Höglund +2
The electronic structure and the anisotropy of the Al - N π and σ chemical bonding of wurtzite AlN has been investigated by bulk-sensitive total fluorescence yield absorption and s…
Electronic structure investigation of the cubic inverse perovskite Sc3AlN
Martin Magnuson, Maurizio Mattesini, Carina Höglund +3
The electronic structure and chemical bonding of the recently discovered inverse perovskite Sc3AlN, in comparison to ScN and Sc metal have been investigated by bulk-sensitive soft…
Origin of the anomalous piezoelectric response in wurtzite ScAlN alloys
Ferenc Tasnádi, Björn Alling, Carina Höglund +4
The origin of the anomalous, 400% increase of the piezoelectric coefficient in ScAlN alloys is revealed. Quantum mechanical calculations show that the effect is intrins…
Managing the supercell approximation for charged defects in semiconductors: finite size scaling, charge correction factors, the bandgap problem and the ab initio dielectric constant
C. W. M. Castleton, A. Hoglund, S. Mirbt
The errors arising in ab initio density functional theory studies of semiconductor point defects using the supercell approximation are analyzed. It is demonstrated that a) the lead…