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Description:
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By x -ray bombardment of metal monocrystals (Fe , Co , Ni , and Cu ) , x -rays of KLL radiative Auger electrons (KLL RAE ) can be observed on the low energy side of the Ka lines . The energies of the KLL RAE x -rays of each monocrystal are the same for different lattice planes and when different kinds of x -ray tubes . Mo , W , and Cu target tubes , are used . Therefore , the peak energies detected within the KLL Auger electron energy limit are interpreted as KLL RAE x -rays . The measured intensity ratios of KLL /Ka are about 0 .3 % . Additionally , the ratio of I (K /9 ) /I (Ka ) and I (Si escape peak ) /I (Ka ) are measured . All of these values agree well with theoretical values . The beam shapes of KLL RAE x -rays are studied by taking pictures on x -ray films . The intensity distribution for Ni and Cu are measured by changing the crystal angle with respect to the incident x -ray beam near the Bragg angles of the KLL RAE x -rays . It is shown that the KLL RAE x -rays are very sharp and stimulated when the crystal is set at the Bragg angle of the KLL RAE with respect to the incident beam , which contains both the pumping radiation and Bremsstrahlung of frequencies in the KLL RAE range in which the KLL x -rays stimulation is achieved . |