Effect of Chemical Combination on the Soft X-Ray K Emission Spectrum of Boron

Abstract
Major changes due to chemical combination are observed in the soft x‐ray K emission spectrum of boron. The largest changes occur between elemental boron (B), boron nitride (BN), and boron oxide (B2O3). Spectra obtained from these compounds using a stearate crystal are compared with results of previous workers from a ruled grating. Points of agreement and differences are noted. The spectra were obtained from a flat‐crystal vacuum spectrometer using a flow‐proportional counter and electron excitation.