Tables and graphs of photon interaction cross sections from 1.0 keV to 100 MeV derived from the LLL Evaluated Nuclear Data Library

Plechaty, E.F.; Cullen, D.E.; Howerton, R.J.

doi:10.2172/4033019

Cited by 86 publications

(88 citation statements)

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“…Photoatomic interaction cross-sections from Scofield, 64 Hubbell et al, 65 and Hubbell and Øverbø 66 were used. The MC code uses NIST XCOM mass-energy absorption coefficients from Hubbell and Seltzer, 56 and atomic data from Plechaty et al 67 were used for characteristic x-ray generation. Both Anagnostopoulos et al and Karaiskos et al used CON L = 0.34 cm for their derivations of brachytherapy dosimetry parameters.…”

Section: A33 Model I25s18 Anisotropy Functionsmentioning

confidence: 99%

Supplement 2 for the 2004 update of theAAPMTask Group No. 43 Report: Joint recommendations by theAAPMandGEC‐ESTRO

et al. 2017

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Cs (IsoRay Medical model CS-1 Rev2). Observations are included on the behavior of these dosimetry parameters as a function of radionuclide. Recommendations are presented on the selection of dosimetry parameters, such as from societal reports issuing consensus datasets (e.g., TG-43U1, AAPM Report #229), the joint AAPM/IROC Houston Registry, the GEC-ESTRO website, the Carleton University website, and those included in software releases from vendors of treatment planning systems. Aspects such as timeliness, maintenance, and rigor of these resources are discussed.Links to reference data are provided for radionuclides (radiation spectra and half-lives) and dose scoring materials (compositions and mass densities). The recent literature is examined on photon energy response corrections for thermoluminescent dosimetry of low-energy photon-emitting brachytherapy sources. Depending upon the dosimetry parameters currently used by individual physicists, use of these recommended consensus datasets may result in changes to patient dose calculations. These changes must be carefully evaluated and reviewed with the radiation oncologist prior to their implementation.

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Section: A33 Model I25s18 Anisotropy Functionsmentioning

confidence: 99%

Supplement 2 for the 2004 update of theAAPMTask Group No. 43 Report: Joint recommendations by theAAPMandGEC‐ESTRO

et al. 2017

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“…where 0.324 is the value of J.L'(Jl+T\) for BGO which preserves the normalization of 1000 for BGO, f is the packing fraction of the powder (the ratio of the powder density to the crystal density), and x is the depth in the powder. Note that the relationship between I and 10 does not depend on f. We used known x-ray cross sections [7] and densities to determine Jl and p, and chose a value of T\ for best agreement between the intensity of the known scintillators and their accepted values relative to BGO. Although T\ undoubtedly varies from sample to sample, we used the value T\-l = 0.01 mm for all the inorganic powders and the agreement was within a factor of three for BaF2, CeF3, and CaW04.…”

Section: Correcting the Total Fluorescent Output For Absorptionmentioning

confidence: 99%

Prospects for new inorganic scintillators

Derenzo

Moses

Cahoon

et al. 1990

IEEE Trans. Nucl. Sci.

109

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[ [ ) . frJ r;y;)Prepared for the U.S. Department of Energy under Contract Number DE-AC03-76SF00098..... DISCLAIMERThis document was prepared as an account of work sponsored by the United States Government. While this document is believed to contain correct information, neither the United States Government nor any agency thereof, nor the Regents of the University of California, nor any of their employees, makes any warranty, express or implied, or assumes any legal responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, or represents that its use would not infringe privately owned rights. Reference herein to any specific commercial product, process, or service by its trade name, trademark, manufacturer, or otherwise, does not necessarily constitute or imply its endorsement, recommendation, or favoring by the United States Government or any agency thereof, or the Regents of the University of California. ABSTRACTAlthough scintillation has been discovered in many inorganic crystals during the past 40 years, there is continued interest in finding compounds with improved scintillation properties. However, the testing of candidate compounds has thus far been limited to those available as crystals of suitable quality and size. We describe a method using synchrotron x-radiation for measuring the fluorescence properties of powders, which makes accessible a much larger number of compounds. We present results for 85 compounds tested by this method. Scintillation from several compounds was discovered, notably CeF3 and PbC03.

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“…In the high field limit, it was found that the resulting cross section for the nonlinear process had a value slightly greater than the total single-photon cross section [26,27] [29].…”

mentioning

confidence: 98%

Limiting cross sections for multiphoton coupling

Boyer

Jara

Luk

et al. 1987

Rev. Phys. Appl. (Paris)

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The availability of extraordinarily bright femtosecond ultraviolet sources is rapidly extending the study of nonlinear atomic responses into an unexplored regime involving intensities in the range of ∼ 10^20 W/cm 2. An estimate is made, covering approximately ten orders of magnitude in intensity, of the effective cross section <σNγ> for nonlinear energy transfer to atoms undergoing subpicosecond irradiation. This treatment, which includes : (a) threshold measurements for low stages of ionization in the low intensity regime (< 10^14 W/cm 2), (b) the experimentally determined average cross section for total energy transfer at an intermediate intensity (∼ 10^16 W/cm 2), and (c) theoretical estimates for the strong field regime (> 10^19 W/cm2), indicates that the cross section for energy transfer in the high intensity (> 10^19 W/cm2) high Z limit falls in a relatively narrow range between simply established upper and lower bounds. The values of these limits are σm = 8 π λ2 c (upper) and the magnitude of the total photoabsorption cross section of Cf at the K edge (lower). Based on this analysis, the maximum cross section for heavy atoms in the high intensity limit is expected to be approximately <σ Nγ> max ∼ 10^-20 cm2, a value which represents an energy transfer rate of ∼ 1 W/atom for an assumed intensity of 10^20 W/cm2. Coupling of this strength would enable the creation of highly energetic and strongly nonequilibrium states of matter and motivates the conclusion that stimulated emission in the X-ray range can be generated by these means

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Tables and graphs of photon interaction cross sections from 1.0 keV to 100 MeV derived from the LLL Evaluated Nuclear Data Library

Cited by 86 publications

References 0 publications

Supplement 2 for the 2004 update of theAAPMTask Group No. 43 Report: Joint recommendations by theAAPMandGEC‐ESTRO

Supplement 2 for the 2004 update of theAAPMTask Group No. 43 Report: Joint recommendations by theAAPMandGEC‐ESTRO

Prospects for new inorganic scintillators

Limiting cross sections for multiphoton coupling

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