AbstractFrom the viewpoint of plasma particle measurements in the radiation belt, background noise is a serious problem. High-energy particles penetrating the sensor shielding generate spurious signals, and their count rate often can be comparable to the true signals. In order to attenuate such background noise during medium-energy (5–83keV) electron measurements, we propose the double energy analyses (DEA) method. DEA is conducted by a combination of an electrostatic analyser (ESA) and avalanche photo-diodes (APDs); ESA and APD independently determine the energy of each incoming particle. By using the DEA method, therefore, the penetrating particles can be rejected when the two energy determinations are inconsistent; spurious noise are caused only when the deposited energy at an APD is by chance consistent with the measured energy by ESA. We formulate the noise count rate and show the advantage of DEA method quantitatively.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    A noise attenuation method for medium-energy electron measurements in the radiation belt


    Contributors:
    Kasahara, S. (author) / Asamura, K. (author) / Ogasawara, K. (author) / Kazama, Y. (author) / Takashima, T. (author) / Hirahara, M. (author) / Saito, Y. (author)

    Published in:

    Advances in Space Research ; 43 , 5 ; 792-801


    Publication date :

    2008-11-12


    Size :

    10 pages




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English







    NOISE ATTENUATION PANEL

    ROGGEVEEN MARCEL / GIJSEMAN REMCO / WONG WILSON | European Patent Office | 2019

    Free access

    NOISE ATTENUATION PANEL

    ROGGEVEEN MARCEL / GIJSEMAN REMCO / WONG WILSON | European Patent Office | 2020

    Free access