核电子学与探测技术
覈電子學與探測技術
핵전자학여탐측기술
NUCLEAR ELECTRONICS & DETECTION TECHNOLOGY
2014年
6期
689-693
,共5页
谢希成%赖万昌%李军%吴和喜
謝希成%賴萬昌%李軍%吳和喜
사희성%뢰만창%리군%오화희
X荧光%铅黄铜合金%滤光片%最佳峰背比%经验系数-基本参数法定量%定量分析
X熒光%鉛黃銅閤金%濾光片%最佳峰揹比%經驗繫數-基本參數法定量%定量分析
X형광%연황동합금%려광편%최가봉배비%경험계수-기본삼수법정량%정량분석
X fluorescence%lead brass alloy%filter%the best peak to background ratio%Quantitative empirical coefficient -the fundamental parameter method%Quantitative analysis
讨论了便携式能量色散X荧光仪在测量铜合金中主元素的研究应用中[1],便携式能量色散X荧光仪测量铜合金中主量元素的最佳条件。通过实验研究证明,在测量运用中采用0.2 mm纯Al的滤片能够大大改善原级谱低能射线产生的本底,过滤效果良好。当X光管管压和管流分别选择22 kV和8μA时可获得最佳峰背比,得到最佳激发电压和管电流。此外,针对经验系数法和基本参数法各自缺陷,利用经验系数法计算出基本参数法中的荧光相对强度和迭代所需的首次元素含量值后代入到基本参数法的流程中进行迭代。实验结果表明,应用此法进行定量分析Cu、Zn、Pb的平均相对误差1.04%、3.3%、6.22%,可见该方法能得到较好的定量结果。
討論瞭便攜式能量色散X熒光儀在測量銅閤金中主元素的研究應用中[1],便攜式能量色散X熒光儀測量銅閤金中主量元素的最佳條件。通過實驗研究證明,在測量運用中採用0.2 mm純Al的濾片能夠大大改善原級譜低能射線產生的本底,過濾效果良好。噹X光管管壓和管流分彆選擇22 kV和8μA時可穫得最佳峰揹比,得到最佳激髮電壓和管電流。此外,針對經驗繫數法和基本參數法各自缺陷,利用經驗繫數法計算齣基本參數法中的熒光相對彊度和迭代所需的首次元素含量值後代入到基本參數法的流程中進行迭代。實驗結果錶明,應用此法進行定量分析Cu、Zn、Pb的平均相對誤差1.04%、3.3%、6.22%,可見該方法能得到較好的定量結果。
토론료편휴식능량색산X형광의재측량동합금중주원소적연구응용중[1],편휴식능량색산X형광의측량동합금중주량원소적최가조건。통과실험연구증명,재측량운용중채용0.2 mm순Al적려편능구대대개선원급보저능사선산생적본저,과려효과량호。당X광관관압화관류분별선택22 kV화8μA시가획득최가봉배비,득도최가격발전압화관전류。차외,침대경험계수법화기본삼수법각자결함,이용경험계수법계산출기본삼수법중적형광상대강도화질대소수적수차원소함량치후대입도기본삼수법적류정중진행질대。실험결과표명,응용차법진행정량분석Cu、Zn、Pb적평균상대오차1.04%、3.3%、6.22%,가견해방법능득도교호적정량결과。
The experiment uses the IED-2000T portable X ray fluorescence spectrometer.Digital probe IED-2000T portable X-ray fluorescence spectrometer consists of the host and separable components, probe and the host using Bluetooth communication, measuring results can be stored in real-time on the host.This design, can avoid the inconvenience caused by cable to connect the mobile host, or cable connection is interrupted data loss.This paper mainly discusses the application of portable energy dispersive X ray fluorescence analyzer in the measurements of the copper alloy, discussed in the practical application of the process rather than the laboratory conditions, the optimum conditions of main portable energy dispersive X ray fluorescence measurement of copper alloy element.In the light tube window, a 0.2 mm aluminum filter is added, measurements at different voltage and current and the different conditions of the samples are conducted.According to the measured peak to back-ground ratio the best elements excited pipe pressure and flow is determined.Through the experiments, the filter of a 0.2 mm pure Al can greatly improve the primary spectrum.The X light tube which can obtain the best peak to background ratio are with the setting at 22kV and 8μA respectively.Application study in the determination of the main elements of lead brass alloy in the use of portable X fluorescence analyzer shows that, using the experi-ence coefficient method to calculate the relative strength is needed in the first element content value determina-tion, and the fundamental parameter method process can be used in the following iterations.The experimental results show that, using this method for quantitative analysis of Cu, Zn, Pb, the average relative error of 1. 04%, 3.3%, 6.22%, can be obtained.