Range-Energy Relations for Electrons and the Determination of Beta-Ray End-Point Energies by Absorption

Katz, L.; Penfold, A. S.

doi:10.1103/revmodphys.24.28

Cited by 598 publications

(150 citation statements)

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“…Table 1 correspond fairly closely with the value quoted by Birch and Marshall, which are used in several x-ray spectra models. [7][8][9][10] It is 495 unsurprising that their values are somewhat different to those of this work, as they were derived from the extrapolated range data summarised by Katz and Penfold 13 based on low-Z materials, predominantly aluminium. Fig.…”

Section: Discussionmentioning

confidence: 63%

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Calculation of x‐ray spectra emerging from an x‐ray tube. Part I. Electron penetration characteristics in x‐ray targets

2007

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Section: Discussionmentioning

confidence: 63%

“…12 The values for the Thomson-Whiddington constants used in these latter cases were those calculated by Birch and Marshall, 7 using the extrapolated 45 transmission range data of Katz and Penfold. 13 The distribution in the energies of electrons at depth was ignored and backscatter was neglected.…”

Section: Introductionmentioning

confidence: 99%

Calculation of x‐ray spectra emerging from an x‐ray tube. Part I. Electron penetration characteristics in x‐ray targets

2007

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“…Alessio et al 98 proposed an alternative framework, based on a formula fit to empirical beta decay data by Katz and Penfold 99 to compute 1D positron annihilation distributions for a range of densities, and the corresponding attenuation coefficients μ. A biexponential function was fit to the distributions, and its parameters were plotted as a function of μ.…”

Section: Iiib1 Space-variant Modelingmentioning

confidence: 99%

Resolution modeling in PET imaging: Theory, practice, benefits, and pitfalls

2013

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In this paper, the authors review the field of resolution modeling in positron emission tomography (PET) image reconstruction, also referred to as point-spread-function modeling. The review includes theoretical analysis of the resolution modeling framework as well as an overview of various approaches in the literature. It also discusses potential advantages gained via this approach, as discussed with reference to various metrics and tasks, including lesion detection observer studies. Furthermore, attention is paid to issues arising from this approach including the pervasive problem of edge artifacts, as well as explanation and potential remedies for this phenomenon. Furthermore, the authors emphasize limitations encountered in the context of quantitative PET imaging, wherein increased intervoxel correlations due to resolution modeling can lead to significant loss of precision (reproducibility) for small regions of interest, which can be a considerable pitfall depending on the task of interest.

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“…Recombination of the ions and secondary electrons takes place rapidly as they diffuse from the path of the x-ray beam. The high concentration of charged species can be detected over distances of the order of a few 0.1 mm and depend on pressure and gas composition [8,9,10].…”

Section: Scanning Volt a Potential Measurementsmentioning

confidence: 99%