ELIMINATION OF BREMSSTRAHLUNG IN ACTIVATION-ANALYSIS BY THE DEFLECTION OF BETA-PARTICLES IN A MAGNETIC-FIELD

The structureless "background" at X-ray and low energy γ-ray region, resulting from bremsstrahlung due to the stopping of β-radiations, causes serious problems in nuclear spectroscopy. In this study, in order to reduce the background and therefore to increase the sensitivity of the nuclear analytical technique and the number of elements observable, a methodology is developed to deflect the β-particles by a magnetic field. The experimental setup consists of a permanent magnet /≈1 kG/, Ge/Li/ solid-state detector, and multichannel analyzer. © 1990 Akadémiai Kiadó.