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

Marco Barbera, Christine Jones, Eugene Haller, Silver, Herbert W. Schnopper, Suzanne Romaine, Jeffery Beeman, William Forman, Norman Madden, Woosley, Barbera, Landis, Ramsey, Finn Christensen, Diehl

Risultato della ricerca: Otherpeer review


We introduce focusing optics and microcalorimeter spectroscopy to nuclear line emissionastrophysics with a balloon payload concept called, B-MINE. It is designed to probe the deepestregions of a supernova explosion by detecting 44Ti emission at 68 keV with spatial and spectralresolutions that are sufficient to determine the velocity distribution of the 44Ti emitting region. BMINEhas a thin plastic foil telescope multilayered to maximize the reflectivity in a 20 keV bandcentered at 68 keV and a microcalorimeter array optimized for the same energy band. Thiscombination provides a reduced background, an energy resolution of 50 eV and a 3F sensitivity in106 s of 6 × 10-8 ph cm-2 s-1 at 68 keV. During the course of a long duration balloon flight, B-MINEcould carry out a detailed study of the 44Ti emission line centroids and width in CAS A. Details ofthe spectrometer and simulated results are presented.
Lingua originaleEnglish
Numero di pagine9
Stato di pubblicazionePublished - 2005

All Science Journal Classification (ASJC) codes

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