Background Rejection of Charged Particles in the Simbol-X Telescope: Preliminary Study of Protons Scattering

Journal Article · Mon May 11 00:00:00 EDT 2009 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.3149469· OSTI ID:21308673

Dell'Orto, E ^[1]; Barbera, M ^[2]; Bulgarelli, A; Fioretti, V; Malaguti, G ^[3]; Mineo, T ^[4]; Pareschi, G; Spiga, D; Tagliaferri, G ^[5]; Rigato, V ^[6]

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1. INAF-OAB-Merate-Italy (Italy)
2. INAF-OAPa-Palermo (Italy)
3. INAF-IASF-Bo-Bologna (Italy)
4. INAF-IASF-Pa-Palermo (Italy)
5. INAF-OAB-Merate (Italy)
6. INFN-LNL-Legnar (Italy)

X-ray telescopes equipped with focusing optics in high eccentric orbit, as e.g. Newton-XMM and Chandra, showed a degradation of the detector performance and an important increase of the noise due to soft protons with energy between a few tens of keV and a few MeV, that are focused on the detector through the mirror module. It should be noted that the focusing of the protons by Wolter optics was an unexpected phenomenon. In Simbol-X a magnetic diverter will be implemented to deflect protons, in order to reduce the flux of charged particles impinging upon the focal plane. Obviously the design of the diverter should take into consideration the protons distribution at the exit of the mirror module; for this reason a detailed simulation about the interaction of particles with the mirror surface is necessary. Here we will present the scattering protons models currently under consideration, suggesting a preliminary solution for the design of the magnetic diverter. We will also discuss an ad hoc experiment to study this problem.

• OSTI ID: 21308673
• Journal Information: AIP Conference Proceedings, Vol. 1126, Issue 1; Conference: 2. international Simbol-X symposium, Paris (France), 2-5 Dec 2008; Other Information: DOI: 10.1063/1.3149469; (c) 2009 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
CHARGED PARTICLES
COSMIC X-RAY SOURCES
DESIGN
DIVERTORS
IRRADIATION
KEV RANGE
MEV RANGE
MIRRORS
NOISE
OPTICS
PERFORMANCE
PHYSICAL RADIATION EFFECTS
PROTONS
SATELLITES
SCATTERING
SOLID SCINTILLATION DETECTORS
TELESCOPE COUNTERS
X-RAY DETECTION