Possible detection of low energy solar neutrons using boron based materials

Autor: I.M. Teslyuk, John W. McClory, Peter A. Dowben, Jeffry A. Kelber, Yaroslav Burak, Axel Enders, Bin Dong, Nicole Benker, Volodymyr Adamiv, G. P. Peterson, Robert J. Olesen, Ethiyal R. Wilson, James C. Petrosky, Jennifer Hamblin, Brant E. Kananen, Elena Echeverria, Ben Bradley, Jacques Doumani
Rok vydání: 2019
Předmět:
Zdroj: Radiation Measurements. 129:106190
ISSN: 1350-4487
DOI: 10.1016/j.radmeas.2019.106190
Popis: Solar neutrons have been detected aboard the International Space Station (ISS), using lithium tetraborate and boron carbide detector elements. We find that evidence of a solar neutron flux, as detected in a neutron calorimeter following subtraction of the proton background, with an energy of about 2 to 4 MeV. This solar neutron flux is likely no more than 250 to 375 neutrons cm−2sec−1, with a lower bound of 50–75 neutrons cm−2sec−1 at one au.
Databáze: OpenAIRE