Abstract The Neutron, Gamma ray, and X-ray Spectrometer (NGXS) is a compact instrument designed to detect neutrons, gamma-rays, and hard X-rays. The original goal of NGXS was to detect and characterize neutrons, gamma-rays, and X-rays from the Sun as part of the Solar Probe Plus mission in order to provide direct insight into particle acceleration, magnetic reconnection, and cross-field transport processes that take place near the Sun. Based on high-energy neutron detections from prompt solar flares, it is estimated that the NGXS would detect neutrons from 15 to 24 impulsive flares. The NGXS sensitivity to 2.2MeV gamma rays would enable a detection of ∼50–60 impulsive flares. The NGXS is estimated to measure ∼120counts/s for a GOES C1-type flare at 0.1AU, which allows for a large dynamic range to detect both small and large flares.

    Highlights ► The NGXS is designed to detect near-Sun neutrons, gamma-rays, and hard X-rays. ► NGXS data gives insight to solar acceleration, reconnection, and transport processes. ► For a near-Sun mission NGXS would detect neutrons from 15 to 24 impulsive flares. ► The gamma-ray sensitivity enables a detection of ∼50–60 impulsive flares.


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    Titel :

    The neutron, gamma-ray, X-ray spectrometer (NGXS): A compact instrument for making combined measurements of neutrons, gamma-rays, and X-rays


    Beteiligte:

    Erschienen in:

    Acta Astronautica ; 93 ; 524-529


    Erscheinungsdatum :

    2012-06-21


    Format / Umfang :

    6 pages




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch





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