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2022-12-07
16:17
[IMPULSE-2022-00321] Contribution to a conference proceedings/Contribution to a book
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Discovery of a 12th-Century Enamelled Reliquary Pendant: Elemental Analysis and Content Visualisation Using Prompt Gamma Neutron Activation Analysis and Neutron Tomography
METAL2022 - PROCEEDINGS OF THE INTERIM MEETING OF THE ICOM-CC METALS WORKING GROUP
INTERIM MEETING OF THE ICOM-CC METALS WORKING GROUP, HelsinkiHelsinki, Finland, 5 Sep 2022 - 9 Sep 20222022-09-052022-09-09
184-191 ()
In October 2008, a heavily corroded pendant was found during an excavation campaign in the historic district of Mainz, Germany, in an ancient dump. The reliquary pendant, made of gilded copper, is in the shape of a quatrefoil, also referred to as a phylacterion, and dates from the late 12th century. [...]
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2022-12-07
16:10
[IMPULSE-2022-00320] Bachelor Thesis

Analytical calculation of thetransmission of a polychromaticneutron beam through polycrystallinematerials
38p. () = Bachelorarbeit, Hochschule für angewandte Wissenschaften München, 2022
The aim of this work is to determine the neutron transmission of polycrystalline sampleswith a polychromatic neutron beam. The focus was to include the wavelengthdependent effects and to make a statement about their influence on the transmission.The transmission of neutrons through different materials was evaluated at differentthicknesses for a polychromatic spectrum. [...]
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2022-12-07
13:41
[IMPULSE-2022-00319] Journal Article
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Aging‐Driven Composition and Distribution Changes of Electrolyte and Graphite Anode in 18650‐Type Li‐Ion Batteries
A series of low-temperature studies on LiNi$_{0.80}$Co$_{0.15}$Al$_{0.05}$O$_2$ 18650-type batteries of high-energy type with different stabilized states of fatigue is carried out using spatially resolved neutron powder diffraction, infrared/thermal imaging, and quasi-adiabatic calorimetry. In-plane distribution of lithium in the graphite anode and frozen electrolyte in fully charged state is determined non-destructively with neutron diffraction and correlated to the introduced state of fatigue. [...]
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2022-12-02
13:39
DBCoverage [IMPULSE-2022-00318] Journal Article
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High-resolution neutron imaging of salt precipitation and water transport in zero-gap CO2 electrolysis
The electrochemical reduction of CO2 is a pivotal technology for the defossilization of the chemical industry. Although pilot-scale electrolyzers exist, water management and salt precipitation remain a major hurdle to long-term operation. [...]
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2022-12-01
11:09
[IMPULSE-2022-00317] Journal Article
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Optimization of the neutron monochromator shielding for a cold triple-axis spectrometer at the FRM-II research reactor by Monte Carlo simulations
The former neutron monochromator shielding of the FLEXX-instrument at the research reactor BER-II (Berlin) will be moved to the research reactor in Munich (FRM-II) in order to reuse it for a new cold-neutron triple-axis spectrometer. The neutron flux at the monochromator position at FRM-II is roughly 20 times higher compared to its former application. [...]

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2022-11-30
10:58
DBCoverage [IMPULSE-2022-00314] Journal Article/Contribution to a conference proceedings
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MIASANS at the longitudinal neutron resonant spin-echo spectrometer RESEDA
QENS/WINS 2022 – 15th Edition of the QENS Series and 10th of the WINS Workshops, QENS/WINS 2022, San SebastianSan Sebastian, Spain, 22 May 2022 - 27 May 20222022-05-222022-05-27 The European physical journal / Web of Conferences 272, 02008 - () [10.1051/epjconf/202227202008]
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2022-11-30
10:39

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2022-11-16
17:16
[IMPULSE-2022-00311] Journal Article
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Fast neutron induced gamma rays from (n,n’), (n,p) and (n,α) reactions on CaCO3
J Radional Nucl Chem online first, online first () [10.1007/s10967-022-08594-6]
Emission of prompt gamma rays following (n,n'), (n,p) and (n,alpha) reactions induced by irradiation of a calcium carbonate (CaCO3) sample with a beam of fission neutrons was investigated with a modified version of the FaNGaS (Fast Neutron-induced Gamma-ray Spectrometry) instrument operated at the Heinz Maier-Leibnitz Zentrum (MLZ) in Garching. The neutron spectrum has an average energy of 2.30 MeV and at sample position the fast neutron flux was (1.13 +/- 0.04) x 10(8) cm(-2) s(-1). [...]
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2022-11-07
09:07
DBCoverage [IMPULSE-2022-00306] Journal Article
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Comparison on crack propagation under tension at 150 °C of Mg-2Zn-1.5Mn alloy sheets with and without crack notch
Generally, edge crack of rolled magnesium alloy sheets initiates in the RD (rolling direction)-ND (normal direction) plane and then propagate in the RD-TD (transverse direction) plane. Hence, the Mg-2Zn-1.5Mn (ZM21) alloy sheets with and without crack notch were designed to carry out in-situ tensile experiments under 150 °C (the same temperature of rolling), with the aim to understand their crack propagation mechanism. [...]
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2022-11-07
08:31

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