0000000000011719

AUTHOR

Daniel S. Swetz

showing 3 related works from this author

Broadband Ultrahigh-Resolution Spectroscopy of Particle-Induced X Rays: Extending the Limits of Nondestructive Analysis

2016

Nondestructive analysis (NDA) based on x-ray emission is widely used, for example, in the semiconductor and concrete industries. Here, we demonstrate significant quantitative and qualitative improvements in broadband x-ray NDA by combining particle-induced emission with detection based on superconducting microcalorimeter arrays. We show that the technique offers great promise in the elemental analysis of thin-film and bulk samples, especially in the difficult cases where tens of different elements with nearly overlapping emission lines have to be identified down to trace concentrations. We demonstrate the efficiency and resolving capabilities by spectroscopy of several complex multielement …

010302 applied physicsSuperconductivityPhysicsspectroscopyta114nondestructive analysisspektroskopiaNondestructive analysisGeneral Physics and Astronomyx-rays01 natural sciencesImaging phantomTheoretical physicsUltrahigh resolution0103 physical sciencesParticleAtomic physics010306 general physicsSpectroscopyPhysical Review Applied
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Transition-Edge Sensors for Particle Induced X-ray Emission Measurements

2013

In this paper we present a new measurement setup, where a transitionedge sensor detector array is used to detect X-rays in particle induced X-ray emission measurements with a 2 MeV proton beam. Transition-edge sensors offer orders of magnitude improvement in energy resolution compared to conventional silicon or germanium detectors, making it possible to recognize spectral lines in materials analysis that have previously been impossible to resolve, and to get chemical information from the elements. Our sensors are cooled to the operation temperature (65 mK) with a cryogen-free adiabatic demagnetization refrigerator, which houses a specially designed X-ray snout that has a vacuum tight window…

Accelerator Physics (physics.acc-ph)Physics - Instrumentation and DetectorsMaterials scienceProtonPhysics::Instrumentation and DetectorsOrders of magnitude (temperature)FOS: Physical scienceschemistry.chemical_elementGermaniumRadiationSpectral lineOpticsGeneral Materials Scienceparticle induced X-ray emission (PIXE)Emission spectrumbusiness.industryDetectorInstrumentation and Detectors (physics.ins-det)transition-edge sensorCondensed Matter PhysicsAtomic and Molecular Physics and OpticsFull width at half maximumchemistryPhysics - Accelerator PhysicsbusinessTESJournal of Low Temperature Physics
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Beating Darwin-Bragg losses in lab-based ultrafast x-ray experiments

2017

The use of low temperature thermal detectors for avoiding Darwin-Bragg losses in lab-based ultrafast experiments has begun. An outline of the background of this new development is offered, showing the relevant history and initiative taken by this work. (C) 2017 Author(s). Funding Agencies|Knut and Alice Wallenberg Foundation; ERC [226136]; Finnish Funding Agency for Technology and Innovation TEKES; Academy of Finland [260880]; NIST Innovations in Measurement Science program; DOE Office of Basic Energy Sciences

Atom and Molecular Physics and OpticsPhysics::OpticsNanotechnology02 engineering and technology01 natural sciencesThermal detectorOpticsDarwin-Bragg loss0103 physical scienceslcsh:QD901-999010306 general physicsInstrumentationSpectroscopyPhysicsRadiationbusiness.industryArticleskidetiede021001 nanoscience & nanotechnologyCondensed Matter Physicsultrafast x-raysUltrafast Structural Dynamics—A Tribute to Ahmed H. ZewailDarwin (spacecraft)Atom- och molekylfysik och optiklcsh:Crystallography0210 nano-technologybusinessUltrashort pulseStructural Dynamics
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