0000000000460222

AUTHOR

J.w. Beeman

showing 3 related works from this author

A microcalorimeter spectrometer for the investigation of laboratory plasmas

2002

We describe a cryostat and 2-stage ADR specifically designed for making measurements at the NIST EBIT (Electron Beam Ion Trap) facility. The design is compact and consists of a single helium bath with two vapor-cooled shields. The 2-stage ADR has two separate magnets and two heat switches. The interface between the EBIT and microcalorimeter array will also be described.

PhysicsCryostatSpectrometerbusiness.industryLiquid heliumchemistry.chemical_elementShieldslaw.inventionNuclear physicsOpticschemistrylawADR cryostat EBIT x-ray microcalorimeters AstrophysicsNISTPlasma diagnosticsbusinessHeliumElectron beam ion trapAIP Conference Proceedings
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High Energy, High Resolution X-Ray Spectroscopy: Microcalorimeters For Nuclear Line Astrophysics

2005

We introduce focusing optics and microcalorimeter spectroscopy to nuclear line emission astrophysics with a balloon payload concept called, B‐MINE. It is designed to probe the deepest regions of a supernova explosion by detecting 44Ti emission at 68 keV with spatial and spectral resolutions that are sufficient to determine the velocity distribution of the 44Ti emitting region. B‐MINE has a thin plastic foil telescope multilayered to maximize the reflectivity in a 20 keV band centered at 68 keV and a microcalorimeter array optimized for the same energy band. This combination provides a reduced background, an energy resolution of 50 eV and a 3σ sensitivity in 106 s of 6 × 10−8 ph cm−2 s−1 at …

PhysicsX-ray spectroscopySpectrometerPhysics::Instrumentation and Detectorsbusiness.industryAstrophysics::High Energy Astrophysical PhenomenaResolution (electron density)Astrophysicslaw.inventionTelescopeSupernovaOpticslawEmission spectrumSpectroscopybusinessX- and gamma-ray telescopes and instrumentation Photometric polarimetric and spectroscopic instrumentationLine (formation)
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Latest results from CUPID-0

2022

International audience; CUPID-0 is a pilot experiment in scintillating cryogenic calorimetry for the search of neutrino-less double beta decay. 26 ZnSe crystals were operated continuously in the first project phase (March 2017 - December 2018), demonstrating unprecedented low levels of background in the region of interest at the Q-value of $^{82}\rm{Se}$. From this successful experience comes a demonstration of full alpha to beta/gamma background separation, the most stringent limits on the $^{82}\rm{Se}$ neutrino-less double beta decay, as well as the most precise measurement of the $^{82}$Se half-life. After a detector upgrade, CUPID-0 began its second and last phase (June 2019 - February…

backgroundSettore FIS/04scintillation counter cryogenicstutkimuslaitteetdouble-beta decay[PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex]hiukkasfysiikkaBayesiandecay modescrystalilmaisimetdetector upgrade[PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex]spectralground stateydinfysiikkacalorimeter cryogenicsCUPID-0 Double beta decay cryogenic calorimeters scintillation exotic decay modes
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