出典:Wikipedia
出典:『Wikipedia』 (2011/04/26 22:37 UTC 版)
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.