e/Bonner sphere

Information
has gloss	eng: Bonner spheres are used to determine the energy spectrum of a neutron beam. The methodology, which was first described in 1960 by Rice University's Bramblett, Ewing and Bonner, employs thermal neutron detectors embedded in moderating spheres of different sizes. Comparison of the neutrons detected by each sphere allows accurate determination of the neutron energy.
lexicalization	eng: Bonner sphere
instance of	(noun) spectroscope for obtaining a mass spectrum by deflecting ions into a thin slit and measuring the ion current with an electrometer mass spectrometer, spectrometer