The design and flight performance of the PoGOLite Pathfinder balloon-borne hard X-ray polarimeter
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- 作者：M. Chauvin ; H.-G. Florén ; M. Jackson ; T. Kamae ; T. Kawano…
- 关键词：X ; ray polarimetry ; Scientific ballooning ; Crab
- 刊名：Experimental Astronomy
- 出版年：2016
- 出版时间：February 2016
- 年：2016
- 卷：41
- 期：1-2
- 页码：17-41
- 全文大小：3,106 KB
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H.-G. Florén (3)
M. Jackson (1) (2)
T. Kamae (4)
T. Kawano (5)
M. Kiss (1) (2)
M. Kole (1) (2) (9)
V. Mikhalev (1) (2)
E. Moretti (1) (10) (2)
G. Olofsson (3)
S. Rydström (1) (2)
H. Takahashi (5)
J. Lind (6)
J.-E. Strömberg (6)
O. Welin (6)
A. Iyudin (7)
D. Shifrin (8)
M. Pearce (1) (2)
1. Department of Physics, KTH Royal Institute of Technology, SE-106 91, Stockholm, Sweden
2. The Oskar Klein Centre for Cosmoparticle Physics, AlbaNova University Centre, 106 91, Stockholm, Sweden
3. Department of Astronomy, Stockholm University, AlbaNova University Centre, SE-106 91, Stockholm, Sweden
4. Department of Physics, University of Tokyo, 113-0033, Tokyo, Japan
5. Department of Physical Science, Hiroshima University, 739-8526, Hiroshima, Japan
9. Geneva University, CH-1211, Geneva, Switzerland
10. Max-Planck-Institut für Physik, D-80805, München, Germany
6. DST Control, Åkerbogatan 10, 582 54, Linköping, Sweden
7. Skobeltsyn Institute of Nuclear Physics, Moscow State University by M. V. Lomonosov, 119991, Moscow, Russia
8. Russian Federal Service for Hydrometeorology and Environmental Monitoring, Central Aerological Observatory, Moscow, Russia - 刊物类别：Physics and Astronomy
- 刊物主题：Physics
Astronomy
Statistics for Engineering, Physics, Computer Science, Chemistry and Geosciences - 出版者：Springer Netherlands
- ISSN：1572-9508
文摘
In the 50 years since the advent of X-ray astronomy there have been many scientific advances due to the development of new experimental techniques for detecting and characterising X-rays. Observations of X-ray polarisation have, however, not undergone a similar development. This is a shortcoming since a plethora of open questions related to the nature of X-ray sources could be resolved through measurements of the linear polarisation of emitted X-rays. The PoGOLite Pathfinder is a balloon-borne hard X-ray polarimeter operating in the 25-240 keV energy band from a stabilised observation platform. Polarisation is determined using coincident energy deposits in a segmented array of plastic scintillators surrounded by a BGO anticoincidence system and a polyethylene neutron shield. The PoGOLite Pathfinder was launched from the SSC Esrange Space Centre in July 2013. A near-circumpolar flight was achieved with a duration of approximately two weeks. The flight performance of the Pathfinder design is discussed for the three Crab observations conducted. The signal-to-background ratio for the observations is shown to be 0.25 ±0.03 and the Minimum Detectable Polarisation (99 % C.L.) is (28.4 ±2.2) %. A strategy for the continuation of the PoGOLite programme is outlined based on experience gained during the 2013 maiden flight. Keywords X-ray polarimetry Scientific ballooning Crab