6533b835fe1ef96bd129ea77

RESEARCH PRODUCT

High Energy, High Resolution X-Ray Spectroscopy: Microcalorimeters For Nuclear Line Astrophysics

Roland DiehlC. JonesD.a. LandisWilliam R. FormanSuzanne RomaineJ.w. BeemanB. RamseyEric H. SilverM. BarberaHerbert W. SchnopperS. E. WoosleyEugene E. HallerNorman W. MaddenFinn Erland Christensen

subject

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)

description

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 68 keV. During the course of a long duration balloon flight, B‐MINE could carry out a detailed study of the 44Ti emission line centroids and width in CAS A. Details of the spectrometer and simulated results are presented.

yearjournalcountryeditionlanguage
2005-01-01
10.1063/1.1960959http://hdl.handle.net/10447/24523