Investigations on compton scattering: New directions

Chatterjee, B.; LaJohn, L.A.; Roy, S.C.

doi:10.1016/j.radphyschem.2006.03.073

Cited by 10 publications

(16 citation statements)

References 42 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…One of such areas is low energy Compton scattering, which is presented when low energy (20-35 keV) X-ray photons interact with human tissue [28]. It is impossible to measure directly absorbed dose in tissue.…”

Section: Resultsmentioning

confidence: 99%

See 1 more Smart Citation

Modelling of low energy X-ray scattering in radiation detectors with protective coatings

Cibulskaitė¹

2008

Lithuanian J. Phys.

View full text Add to dashboard Cite

The results of Monte Carlo modelling of the low energy X-ray photon interaction processes in Si detector coated by different materials of different thickness are presented in this paper. Detector constructions containing free standing polymer-like carbon coatings and diamond-like carbon (DLC) coatings deposited onto detector surface were investigated. Total and scatter doses in coated samples were calculated and the influence of the coating material, composition, and thickness on the X-ray photon scattering processes in Si detector was evaluated. Evaluation of the detector construction with protective coating corresponding to the lowest fraction of scattered photons as compared to the calculated total dose is discussed in the paper. It is shown that nano-thick DLC coatings directly deposited onto detector surface are promising materials in the construction of radiation detectors due to their suitable mechanical properties, resistance against chemicals and against radiation damage of DLC films.

show abstract

Section: Resultsmentioning

confidence: 99%

“…where k is the energy of the interacting photon, k c is the energy of a photon scattered at angle θ by free electron at rest, X KN is Klein-Nishina function [27], and S(k, cos θ) is the so-called S-matrix [28], which identifies incoherent scattering function:…”

Section: Theoretical Model For the Description Of Photon Scattering Pmentioning

confidence: 99%

Modelling of low energy X-ray scattering in radiation detectors with protective coatings

Cibulskaitė¹

2008

Lithuanian J. Phys.

View full text Add to dashboard Cite

show abstract

“…due to momentum conservation during the scattering process. This is possible at high photon energies and large photon momentum transfers where the "impulse approximation" is well justified [22]. In the "impulse approximation" for Compton ionization the ejected electron is treated as a quasi-unbound electron and thus the momentum change of the whole atom by Compton ionization is rather small and the remaining ion acts only as a spectator.…”

Section: Discussionmentioning

confidence: 99%

The Precision Limits in a Single-Event Quantum Measurement of Electron Momentum and Position

Schmidt‐Böcking

Eckart

Lüdde

et al. 2021

Molecular Beams in Physics and Chemistry

View full text Add to dashboard Cite

A modern state-of-the-art “quantum measurement” [The term “quantum measurement” as used here implies that parameters of atomic particles are measured that emerge from a single scattering process of quantum particles.] of momentum and position of a single electron at a given time [“at a given time” means directly after the scattering process. (It should be noticed that the duration of the reaction process is typically extremely short => attoseconds).] and the precision limits for their experimental determination are discussed from an experimentalists point of view. We show—by giving examples of actually performed experiments—that in a single reaction between quantum particles at a given time only the momenta of the emitted particles but not their positions can be measured with sub-atomic resolution. This fundamental disparity between the conjugate variables of momentum and position is due to the fact that during a single-event measurement only the total momentum but not position is conserved as function of time. We highlight, that (other than prevalently perceived) Heisenberg’s “Uncertainty Relation” UR [1] does not limit the achievable resolution of momentum in a single-event measurement. Thus, Heisenberg’s statement that in a single-event measurement only either the position or the momentum (velocity) of a quantum particle can be measured with high precision contradicts a real experiment. The UR states only a correlation between the mean statistical fluctuations of a large number of repeated single-event measurements of two conjugate variables. A detailed discussion of the real measurement process and its precision with respect to momentum and position is presented.

show abstract

“…Firstly, the ISF approach based on equation ( 27) can only be used to calculate the angular distribution for Compton scattering process, information coming from the more differential quantities, such as doubly-differential cross section d 2 σ/dω f dΩ f , is lost in the integration. Secondly, in the ab initio numerical calculations of ISF, contributions from Compton scattering with those from Raman scattering cannot be effectively distinguished [29,40]. In numerical tabulations, the contributions from these two processes are adding together to give a total result.…”

Section: Incoherent Scattering Factor / Incoherent Scattering Functionmentioning

confidence: 99%

“…Recently, the SM formulation has revealed many nontrivial properties of Compton scattering, and it has attracted lots of interests in interdisciplinary studies [29,32]. Furthermore, there are several experiments which give supporting to the SM predictions [35][36][37][38][39][40][41]. Recently, Max Kircher et al conducted an kinematically complete Compton scattering experiment utilizing X-rays produced from accelerators with energy about 2.1 keV.…”

Section: Introductionmentioning

confidence: 99%

An Overview of the Compton Scattering Calculation

Qiao,

Wei,

Chen

2021

Preprint

View full text Add to dashboard Cite

The Compton scattering process plays a significant role in atomic, condensed matter, nuclear physics and material science. It could provide us useful information on the electromagnetic interaction between light and matter. Several aspects of many-body physics, such us electronic structures, electron momentum distributions, many-body interactions between bound electrons, and other properties, can be revealed by virtue of Compton scattering experiments. In this work, we give an review on ab initio calculation of Compton scattering process. We shall focus on several approachesfree electron approximation (FEA), impulse approximation (IA), incoherent scattering function / incoherent scattering factor (ISF) and scattering matrix (SM) -and discuss the main features as well as the available ranges for each approach. Furthermore, in this work, we also briefly introduce the databases and applications for Compton scattering.

show abstract

Investigations on compton scattering: New directions

Cited by 10 publications

References 42 publications

Modelling of low energy X-ray scattering in radiation detectors with protective coatings

Modelling of low energy X-ray scattering in radiation detectors with protective coatings

The Precision Limits in a Single-Event Quantum Measurement of Electron Momentum and Position

An Overview of the Compton Scattering Calculation

Contact Info

Product

Resources

About