Abstract The effect of the external mechanical noise on energy dispersive X-ray fluorescence (EDXRF) spectra has been investigated. A Nd2O3 sample was bombarded by the gamma-rays of 59.54 keV energy. The annular radioactive source (americium-241) with intensity equal to 1 Curie was used. The intensities of characteristic x-rays emitted from the Nd2O3 sample were measured using a high purity germanium detector. The mechanical noise applied to the experimental system had intensity values of 50 dB, 60 dB, 70 dB, 80 dB, 90 dB, and 100 dB. A sound level meter (Model 8928) was used to measure the external mechanical noise levels. The net area (P), background intensity (B), peak-to-background ratio (P/B), and full width at half-maximum (FWHM) of the characteristic peaks were determined in the energy dispersive X-ray fluorescence spectra obtained from Nd2O3 sample. It was observed that the background intensities of and peaks of the sample increased with the increasing mechanical noise level. The peak-to-background ratios (P/B) and the peak resolution decreased with increasing mechanical noise level.

中文翻译：

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机械噪声对 X 射线荧光分析的影响

摘要 研究了外部机械噪声对能量色散 X 射线荧光 (EDXRF) 光谱的影响。Nd2O3 样品被 59.54 keV 能量的伽马射线轰击。使用了强度等于 1 居里的环形放射源 (americ-241)。使用高纯度锗探测器测量从 Nd2O3 样品发出的特征 X 射线的强度。应用于实验系统的机械噪声的强度值为 50 dB、60 dB、70 dB、80 dB、90 dB 和 100 dB。声级计（8928 型）用于测量外部机械噪声水平。净面积 (P)、背景强度 (B)、峰背景比 (P/B)、从 Nd2O3 样品获得的能量色散 X 射线荧光光谱中确定了特征峰的半峰全宽 (FWHM)。观察到样品的背景强度和峰值随着机械噪声水平的增加而增加。峰背比 (P/B) 和峰分辨率随着机械噪声水平的增加而降低。