Energy dispersive X-ray spectroscopy with microcalorimeters

Hollerith, Christian; Wernicke, D.; Bühler, M.; Feilitzsch, F. von; Huber, M.; Höhne, J.; Hertrich, T.; Jochum, J.; Phelan, K.; Stark, M.; Simmnacher, B.; Weiland, W.; Westphal, W.

doi:10.1016/j.nima.2003.11.327

Cited by 22 publications

(6 citation statements)

References 2 publications

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“…Figure 3b and 3c indicates the presence of the Ta and Si elements detected by measuring the characteristic peaks of the -Ta L  (8.145 KeV) and -Si K series lines, respectively. Note that since -Ta M  (1.709 KeV) and -Si K  (1.739 KeV) were separated by only 30 eV, the detector could not resolve these lines [31,32] . The detection results of both the Si and Ta elements overlapped, as seen in Figure 3c.…”

Section: Resultsmentioning

confidence: 99%

Heterogeneous Memristive Devices Enabled by Magnetic Tunnel Junction Nanopillars Surrounded by Resistive Silicon Switches

Lin

Adam

Agnus

et al. 2018

Adv Elect Materials

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Emerging nonvolatile memories (NVMs) have currently attracted great interest for their potential applications in advanced low‐power information storage and processing technologies. Conventional NVMs, such as magnetic random access memory and resistive random access memory, suffer from limitations of low tunnel magnetoresistance, low access speed, or finite endurance. NVMs with synergetic advantages are still highly desired for future computer architectures. This study reports a heterogeneous memristive device composed of a magnetic tunnel junction (MTJ) nanopillar surrounded by resistive silicon switches, named resistively enhanced MTJ (Re‐MTJ), which may be utilized for novel memristive memories, enabling new functionalities that are inaccessible for conventional NVMs. The Re‐MTJ device features a high ON/OFF ratio of >1000% and multilevel resistance behavior by combining magnetic switching together with resistive switching mechanisms. The magnetic switching originates from the MTJ, while the resistive switching is induced by a point‐switching filament process that is related to the mobile oxygen ions. Microscopic evidence of silicon aggregated as nanocrystals along the edges of the nanopillars verifies the synergetic mechanism of the heterogeneous memristive device. This device may provide new possibilities for advanced memristive memory and computing architectures, e.g., in‐memory computing and neuromorphics.

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Section: Resultsmentioning

confidence: 99%

Heterogeneous Memristive Devices Enabled by Magnetic Tunnel Junction Nanopillars Surrounded by Resistive Silicon Switches

Lin

Adam

Agnus

et al. 2018

Adv Elect Materials

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“…Cryogenic x-ray detector arrays, such as the microcalorimeter [181][182][183] , transition-edgesensor (TES) microcalorimeter [184][185][186] , and superconducting tunnel junction (STJ) detector 187 , are…”

Section: Challenges For Burning Plasmasmentioning

confidence: 99%

Passive Spectroscopic Diagnostics for Magnetically-confined Fusion Plasmas

Stratton¹,

Bitter²,

Hill³

et al. 2007

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Spectroscopy of radiation emitted by impurities and hydrogen isotopes plays an important role in the study of magnetically-confined fusion plasmas, both in determining the effects of impurities on plasma behavior and in measurements of plasma parameters such as electron and ion temperatures and densities, particle transport, and particle influx rates. This paper reviews spectroscopic diagnostics of plasma radiation that are excited by collisional processes in the plasma, which are termed 'passive' spectroscopic diagnostics to distinguish them from 'active' spectroscopic diagnostics involving injected particle and laser beams. A brief overview of the ionization balance in hot plasmas and the relevant line and continuum radiation excitation mechanisms is given. Instrumentation in the soft X-ray, vacuum ultraviolet, ultraviolet, visible, and near-infrared regions of the spectrum is described and examples of measurements are given.Paths for further development of these measurements and issues for their implementation in a burning plasma environment are discussed.

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“…• Des détecteurs cryogéniques sont actuellement commercialisés pour l'analyse de matériaux par fluorescence X (Hollerith et al, 2004). Les résolutions en énergie sont de l'ordre de 20 eV à 6 keV et 10 eV à 1,5 keV apportant une sensibilité remarquable, appréciée entre autres, par les constructeurs de semi-conducteurs pour l'analyse d'impuretés.…”

Section: Applications Dans L'industrieunclassified

Développements récents sur les détecteurs cryogéniques, applications dans la recherche et l’industrie

Leblanc

2004

Radioprotection

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RÉSUMÉLes performances remarquables des détecteurs fonctionnant à très basse température ont franchi les limites inhérentes aux détecteurs conventionnels à semiconducteur ou à scintillateur. Ceci s'explique par les principes physiques de détection exploités par les différentes technologies développées aujourd'hui. L'élégance de ces technologies est de mettre en jeu la The performance of low temperature detectors has far exceeded the inherent limits of conventional semiconductor and scintillation detectors. This stems from the detection physics used by the different technologies being developed nowadays. The neat idea behind these technologies is to split the energy of an incident photon or particle over a very large number of quanta, larger by several orders of magnitude than in classical detectors. Hence low statistical fluctuations on the energy determination for an individual interaction lead to energy detection thresholds and energy resolutions better by one or two orders of magnitude. An additional asset is that detection efficiency is not limited at low energies as it is the case for germanium or silicon detectors. Low temperature detectors are being developed and used in numerous applications (imaging arrays for astrophysics, dark matter and neutrino physics, atomic, nuclear and particle physics, material science, biology and medical science, …) covering detection of different nature of particles over a very large energy range (sub-millimetre, infra-red, UV, X-rays, gamma photons, but also beta, alpha particles, and bio-molecules). Introduction of automated cryogen-free refrigerators on the market opens new prospects of industrial applications for these detectors of hitherto unequalled performance.

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Energy dispersive X-ray spectroscopy with microcalorimeters

Cited by 22 publications

References 2 publications

Heterogeneous Memristive Devices Enabled by Magnetic Tunnel Junction Nanopillars Surrounded by Resistive Silicon Switches

Heterogeneous Memristive Devices Enabled by Magnetic Tunnel Junction Nanopillars Surrounded by Resistive Silicon Switches

Passive Spectroscopic Diagnostics for Magnetically-confined Fusion Plasmas

Développements récents sur les détecteurs cryogéniques, applications dans la recherche et l’industrie

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