6533b839fe1ef96bd12a5b7e
RESEARCH PRODUCT
A new beamline for energy-dispersive high-resolution PIXE analysis using polycapillary optics
Kai ArstilaMarko KäyhköIlari MaasiltaTimo SajavaaraMikko Laitinensubject
Nuclear and High Energy PhysicsMaterials scienceAstrophysics::High Energy Astrophysical PhenomenatutkimuslaitteetHigh resolutionAstrophysics::Cosmology and Extragalactic Astrophysics01 natural sciencesexternal-PIXElaw.inventionOpticsSensor arrayPolycapillary opticslaw0103 physical sciencesalkuaineanalyysiPIXE010306 general physicsHigh energy resolutionInstrumentationta114business.industrypolycapillary lens010401 analytical chemistrySolid angletransition-edge sensor0104 chemical sciencesLens (optics)BeamlineHigh Energy Physics::ExperimentbusinessEnergy (signal processing)description
Abstract A new beamline for high energy resolution PIXE measurements is presented. This new setup includes options for both in-air and vacuum measurements. For the high energy resolution transition-edge sensor array, a polycapillary lens is used for detecting low-energy X-rays down to 0.5 keV and to increase the effective solid angle. X-ray transmission of the polycapillary lens was characterized using two calibration standards. The gain obtained by adding a polycapillary lens was 1.6–2.3 at energies between 2.1 keV and 4.5 keV. From 1.04 to 1.74 keV the gain is increased to 2.1–3.0, and at energies 4.9–8.0 keV the gain is between 1.6 and 0.65. The measured gain agreed well with theoretical calculations. The lightest detectable element in the new setup is oxygen at 0.525 keV.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2019-05-01 | Nuclear Instruments and Methods in Physics Research. Section B: Beam Interactions with Materials and Atoms |