PHOTON-EXCITED K X-RAY-FLUORESCENCE CROSS-SECTIONS FOR SOME LIGHT-ELEMENTS IN THE ENERGY-RANGE 20-60 KEV

被引:26
作者
RAO, DV [1 ]
CESAREO, R [1 ]
GIGANTE, GE [1 ]
机构
[1] CTR INTERDIPARTIMENTALE RIC ANALISI MODELLI INFORMAZIONE SISTEMI BIOMED,I-00186 ROME,ITALY
关键词
D O I
10.1002/xrs.1300220607
中图分类号
O433 [光谱学];
学科分类号
0703 ; 070302 ;
摘要
Kalpha and Kbeta x-ray fluorescence cross-sections were experimentally determined for elements in the range 26 less-than-or-equal-to Z less-than-or-equal-to 40 at various excitation energies using an x-ray tube with a secondary exciter system as the excitation source. The x-ray tube with a secondary target arrangement was used to obtain high intensity with a high degree of monochromatization. Experimental values were compared with the theoretical values calculated using I(Kbeta)/I(Kalpha) ratios based on Hartree-Fock and Hartree-Slater theories. The experimental values for all the elements at various excitation energies were in good agreement with the theoretical values.
引用
收藏
页码:406 / 409
页数:4
相关论文
共 9 条
[1]   MEASUREMENT OF K-ALPHA CROSS-SECTIONS AND FLUORESCENCE YIELDS FOR ELEMENTS IN THE RANGE 42-LESS-THAN-OR-EQUAL-TO-Z-LESS-THAN-OR-EQUAL-TO-57 USING RADIOISOTOPE X-RAY-FLUORESCENCE [J].
ALNASR, IA ;
JABR, IJ ;
ALSALEH, KA ;
SALEH, NS .
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING, 1987, 43 (01) :71-73
[2]  
CESAREO R, 1988, NUCLEAR ANAL TECHNIQ
[3]  
CHANG CN, 1978, NUCL INSTRUM METHODS, V148, P561
[4]  
GARG ML, 1985, XRAY SPECTROM, V14, P169
[5]  
KRAUSE MO, 1978, ORNL5399 REP
[6]  
Scofield J. H., 1974, Atomic Data and Nuclear Data Tables, V14, P121, DOI 10.1016/S0092-640X(74)80019-7
[7]   EXCHANGE CORRECTIONS OF K X-RAY-EMISSION RATES [J].
SCOFIELD, JH .
PHYSICAL REVIEW A, 1974, 9 (03) :1041-1049
[8]  
SCOFIELD JH, 1973, UCRL51326 LAWR LIV L
[9]  
Storm L, 1970, ATOM DATA NUCL DATA, V7, P565, DOI [DOI 10.1016/S0092-640X(70)80017-1, 10.1016/S0092-640X(70)80017-1]