Coherent X-ray scattering data for plastics

Aysun Böke

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Coherent x-ray scattering data including molecular interference effects are obtained for plastics.  To determine the effect of molecular interference, the molecular form factors are calculated.  The theoretical results of molecular form factors are compared with experimental values in literature.  The molecular form factors varies importantly for low momentum transfer values.  As a result of this, for very low photon energies, a significant change in the coherent scattering cross sections is observed.  The interference effects are the main cause of form factor and coherent scattering coefficient differences.  The results obtained in this study will provide remarkable data for use by others to model photon transport problems.


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Ghammraoui, B., Badal, A., Popescu, L.M., Maximum-likelihood estimation of scatter components algorithm for x-ray coherent scatter computed tomography of the breast, Physics in Medicine and Biology, 61, 3164-3179, (2016).

Poletti, M.E., Gonçalves, O.D., Mazzaro, I., Measurements of X-ray scatter signatures for some tissue-equivalent materials, Nuclear Instruments and Methods in Physics Research B, 213, 595-598, (2004).

Lakshmanan, M.N., Kapadia, A.J., Harrawood, B.P., Brady, D., Samei, E., X-ray Coherent scatter imaging for surgical margin detection: A Monte Carlo study, Medical Imaging, 9033, 903361, 1-8, (2014).

Lakshmanan, M.N., Harrawood, B.P., Samei, E., Kapadia, A.J., Volumetric x-ray coherent scatter imaging of cancer in resected breast tissue: a Monte Carlo study using virtual anthropomorphic phantoms, Physics in Medicine and Biology, 60, 6355-6370, (2015).

Leliveld, C.J., Maas, J.G., Bom, V.R., van Eijk, C.W.E., Monte Carlo modelling of coherent scattering: Influence of interference, IEEE Transactions on Nuclear Science, 43, 3315-3321, (1996).

King, B.W., Landheer, K.A., Johns, P.C., X-ray coherent scattering form factors of tissues, water and plastics using energy dispersion, Physics in Medicine and Biology, 56, 4377-4397, (2011).

Schaupp, D., Schumacher, M., Smend, F., Rullhusen, P., Hubbell, J.H., Small-angle Rayleigh Scattering of Photons at High Energies: Tabulations of Relativistic HFS Modified Atomic Form Factors, Journal of Physical and Chemical Reference Data, 12, 467-512, (1983).

Böke, A., Calculation of the total Rayleigh scattering cross sections of photons in the energy range of 30-50 keV for Nb and Mo elements, Radiation Physics and Chemistry, 80, 609-613, (2011).

Bradley, D.A., Chong, C.S., Ghose, A.M., Photon absorptiometric studies of elements, mixtures and substances of biomedical interest, Physics in Medicine and Biology, 31, 267-273, (1986).

Eichler, J., de Barros, S., Gonçalves, O., Gaspar, M., Comparison of Compton and Rayleigh scattering at 145 keV, Physical Review A, 28, 3656-3658, (1983).

Kane, P.P., Mahajani, J., Basavaraju, G., Priyadarsini, A.K., Scattering of 1.1732-and 1.3325 MeV gamma rays through small angles by carbon, aluminum, copper, tin, and lead, Physical Review A, 28, 1509-1516, (1983).

Hubbell, J.H., Veigele, W.J., Briggs, E.A., Brown, R.T., Cromer, D.T., Howerton, R.J., Atomic form factors, incoherent scattering functions, and photon scattering cross sections, Journal of Physical and Chemical Reference Data, 4, 471-538, (1975).

Kissel, L., RTAB: the Rayleigh scattering database, Radiation Physics and Chemistry, 59, 185-200, (2000).

Kissel, L., Pratt, R.H., Roy, S.C., Rayleigh scattering by neutral atoms, 100 eV–10 MeV, Physical Review A, 22, 1970-2004, (1980).

Roy, S.C., Zhou, B., Kissel, L., Pratt, R.H., Rayleigh scattering and form factors, Indian Journal of Physics B, 67, 481-496 , (1993).

Roy, S.C., Kissel, L., Pratt, R.H., Elastic scattering of photons, Radiation Physics and Chemistry, 56, 3-26, (1999).

Zhou, B., Pratt, R.H., Calculation of Anomalous scattering for ions and atoms, Physica Scripta, 41, 495-498, (1990).

Berger, M.J., Hubbell, J.H., XCOM:photon cross sections on a personal computer, NBSIR 87-3597, Washington, DC:NBS, (1987).

Hubbell, J.H., Seltzer, S.M., Tables of X-ray mass attenuation coefficients and mass energy absorption coefficients 1 keV to 20 MeV for elements Z=1 to 92 and 48 additionalsubstances of dosimetric interest, Report NISTIR 5632, (1995)

Tartari, A., Casnati, E., Bonifazzi, C., Baraldi, C., Molecular differential cross sections for x-ray coherent scattering in fat and polymethyl methacrylate, Physics in Medicine and Biology, 42, 2551-2560, (1997).

Theodorakou, C., Farquharson, M.J., Human soft tissue analysis using x-ray or gamma-ray techniques, Physics in Medicine and Biology, 53, R111-R149, (2008)

Thomson, J.J., Conduction of electricity through gases, Cambridge University Press, Cambridge, (1906).


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