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Performance assessment study of the balloon-borne astronomical soft gamma-ray polarimeter PoGOLite
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2007 (English)In: Physica. E, Low-Dimensional systems and nanostructures, ISSN 1386-9477, E-ISSN 1873-1759, Vol. 40, no 2, 438-441 p.Article in journal (Refereed) Published
Abstract [en]

Measurements of polarization play a crucial role in the understanding of the dominant emission mechanism of astronomical sources. Polarized Gamma-ray Observer-Light version (PoGOLite) is a balloon-borne astronomical soft gamma-ray polarimeter at the 25-80 keV band. The PoGOLite detector consists of a hexagonal close-packed array of 217 Phoswich detector cells (PDCs) and side anti-coincidence shields (SASs) made of BGO crystals surrounding PDCs. Each PDC consists of a slow hollow scintillator, a fast scintillator and a BGO crystal that connects to a photomultiplier tube at the end. To examine the PoGOLite's capability and estimate the performance, we conducted experiments with the PDC using radioisotope 241Am. In addition, we compared this result with performance expected by Monte Carlo simulation with Geant4. As a result, we found that the actual PDC has the capability to detect a 100 m Crab source until 80 keV.

Place, publisher, year, edition, pages
2007. Vol. 40, no 2, 438-441 p.
Keyword [en]
polarization, gamma-ray, X-ray, balloon experiment
National Category
Physical Sciences
URN: urn:nbn:se:kth:diva-40735DOI: 10.1016/j.physe.2007.06.051ISI: 000251886200056ScopusID: 2-s2.0-36049025220OAI: diva2:443018
2nd International Symposium on Nanometer-Scale Quantum Physics Location: Tokyo Inst Technol, Tokyo, Japan, Date: JAN 24-26, 2007 Available from: 2011-09-23 Created: 2011-09-20 Last updated: 2011-09-23Bibliographically approved

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Axelsson, MagnusKiss, MózsiMarini Bettolo, CeciliaCarlson, PerKlamra, WlodzimierzPearce, MarkRyde, Felix
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