Inelastic Scattering of Gamma Rays by Bound Electrons

Varma, J. Siddartha; Eswaran, Mukesh

doi:10.1103/physrev.127.1197

Cited by 32 publications

(4 citation statements)

References 12 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…8 A source of these false events is detector-todetector scattering 5,7 (which gave a significant spectral feature in Ref. 5).…”

Section: Inelastic X-ray Scattering From Copper A>shell Electrons At mentioning

confidence: 99%

Inelastic x-ray scattering from copperK-shell electrons at intermediate momentum transfers

Marchetti¹,

Franck²

1987

Phys. Rev. Lett.

View full text Add to dashboard Cite

We give experimental spectra for 70-and 62-keV x rays inelastically scattered from the A^-shell electrons of copper. The x rays scattered from the K shell were selected by fluorescence coincidence. The scattering is in a momentum-transfer regime in which the impulse approximation is not valid, and atomic binding effects are important. The data are in agreement within experimental uncertainties in absolute scattering strength and spectra shape with a Hartree-Fock-Slater calculation. In contrast to previous work we do not see separate spectral features attributable to Compton and Raman scattering.PACS numbers: 32.80.Cy, 32.80.Hd At high momentum transfers inelastic x-ray scattering is well described by the impulse approximation x in which the spectrum of scattered x rays is determined by the momentum distribution of the electronic initial state. The aim of this work was to examine the x-ray scattering process beyond the impulse-approximation regime by inelastically scattering x-rays from deeply bound A'-shell electrons of orbital radius a at intermediate momentum transfers (qo^\/a). 2 In this momentum-transfer regime, unlike the limit qoa^>\, the electron is excited to a state which is not well described as a free-electron plane wave. Furthermore, we are sensitive to electricdipole-forbidden transitions, which are not revealed in x-ray photoabsorption spectroscopy (which is spectroscopically equivalent to the limit qa

show abstract

“…8 A source of these false events is detector-todetector scattering 5,7 (which gave a significant spectral feature in Ref. 5).…”

Section: Inelastic X-ray Scattering From Copper A>shell Electrons At mentioning

confidence: 99%

Inelastic x-ray scattering from copperK-shell electrons at intermediate momentum transfers

Marchetti¹,

Franck²

1987

Phys. Rev. Lett.

View full text Add to dashboard Cite

show abstract

“…On the other hand, the experimental curves at larger scattering angles agree, within experimental errors, with the theoretical ones obtained by the use of Eqs. (10)- (15), which are applicable to free electrons with nonzero initial velocity. The small difference between the experimental and calculated curves for each of the scatterer elements are probably not attributable to the effect of the scatterer thickness (see Sec.…”

Section: Scattering Of Gamma Rays By K-shell Electronsmentioning

confidence: 99%

“…(5) and (6), applied to the model of the hydrogen-like atom. The curve B represents the theoretical curve for a large-angle approximation calculated from the Compton cross section (do-K/d£l) &v , defined by Eq (15),. for an electron initially free with a velocity (/3=0.522) corresponding to the iC-shell binding energy of lead.…”

mentioning

confidence: 99%

Incoherent Scattering of Gamma Rays byK-Shell Electrons

1965

View full text Add to dashboard Cite

The differential cross section for the incoherent scattering of 662-keV gamma rays by the i£-shell electrons of tin, tantalum, and lead was determined by experiment. The scattered photons were selected in coincidence with accompanying K x rays from the scatterer foil, using the Nal(Tl) scintillation detectors and the slow-fast coincidence method. The cross section daic/dtl was compared with that predicted by the KleinNishina formula, daF/d£l, at scattering angles 20°, 35°, 50°, 65°, and 100°. The experimental results show that for all cases with these scatterer elements the cross-section ratio d

show abstract

“…If it overlaps with the region of interest, a proper correction has to be applied. This problem was realised long ago [37] and has been reexamined by Alexandropoulos et al [38] with particular attention to the low-energy spectrum from inelastic scattering. Mittal et al [39] have recently examined this problem in detail using different schemes of calculating the spectral distribution of BS.…”

Section: Experimental Difficultiesmentioning

confidence: 99%

Compton Scattering from Heavier Metals

Sharma

1993

Zeitschrift Für Naturforschung A

View full text Add to dashboard Cite

The use of Compton scattering in the determination of electronic structure has grown considerably in the last two decades. With the advent of synchrotron radiation it has become possible, even with good resolution, to measure several single-crystal orientations to determine three-dimensional electron momentum distributions. Although most of the earlier work has been directed to low-Z materials, in the last few years medium and high-Z metals have also been investigated with this technique. In this paper we present a review of these studies on heavier metals with particular attention to the difficulties encountered. Compton profile measurements from techniques based on energetic ion beams are also considered briefly.

show abstract

Inelastic Scattering of Gamma Rays by Bound Electrons

Cited by 32 publications

References 12 publications

Inelastic x-ray scattering from copperK-shell electrons at intermediate momentum transfers

Inelastic x-ray scattering from copperK-shell electrons at intermediate momentum transfers

Incoherent Scattering of Gamma Rays byK-Shell Electrons

Compton Scattering from Heavier Metals

Contact Info

Product

Resources

About