Abstract
Differential cross sections for elastic scattering of the 59.54 keV γ-rays in elements with 22 ≤Z ≤92 have been measured over the angular range 10○–160○corresponding to the momentum transfer 0.4 ≤x ≤4.7 Å-1. The measurements at forward and backward angles were performed using the 241Am radioactive point-source, target and the Ge detectors in the transmission and reflection arrangements, respectively. The measured differential scattering cross sections are compared with those based on the form-factor (FF) formalism and state-of-the-art S-matrix calculations to differentiate between their relative efficacies and to check angular-dependence of the anomalous scattering factors (ASF) incorporated as correction to the modified form-factor (MF). The S-matrix values exhibit agreement with the measured data at backward angles and differences ∼10% at forward angles. The scattering cross sections based on the MF including ASF’s are in general lower at various angles by up to 20% for medium- and high-Z elements. The observed deviations being higher at the forward angles infer possibility of angular-dependence of ASF’s.
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P.P. Kane, L. Kissel, R.H. Pratt, S.C. Roy, Phys. Rep. 140, 75 (1986)
L. Kissel, B. Zhou, S.C. Roy, S.K. Sen Gupta, R.H. Pratt, Acta Crystallogr. A 51, 271 (1995)
L. Kissel, Radiat. Phys. Chem. 59, 185 (2000)
L. Kissel, R.H. Pratt, S.C. Roy, Phys. Rev. A 22, 1970 (1980)
B. Zhou, R.H. Pratt, S.C. Roy, L. Kissel, Phys. Scr. 41, 495 (1990)
L. Kissel, Lawrence Livermore National Laboratory, USA (1997), available from: http://www-phys.llnl.gov/Research/scattering/
D.T. Cromer, D.A. Liberman, Acta Crystallogr. A 37, 267 (1981)
L. Kissel, R.H. Pratt, Acta Crystallogr. A 46, 170 (1990)
S.C. Roy, L. Kissel, R.H. Pratt, Radiat. Phys. Chem. B 56, 3 (1999)
D. Bradley, O.D. Goncalves, P.P. Kane, Radiat. Phys. Chem. 56, 125 (1999)
G. Basavaraju, P.P. Kane, L. Kissel, R.H. Pratt, Phys. Rev. A 49, 3664 (1994)
G. Basavaraju, P.P. Kane, L. Kissel, R.H. Pratt, Pramana 44, 545 (1995)
J.S. Shahi, S. Puri, D. Mehta, M.L. Garg, N. Singh, P.N. Trehan, Phys. Rev. A 55, 3557 (1997)
J.S. Shahi, S. Puri, D. Mehta, M.L. Garg, N. Singh, P.N. Trehan, Phys. Rev. A 57, 4327 (1998)
A. Kumar, J.S. Shahi, M.L. Garg, S. Puri, D. Mehta, N. Singh, Nucl. Instrum. Meth. B 183, 178 (2001)
I.S. Elyaseery, A. Shukri, C.S. Chong, A.A. Tajuddin, D.A. Bradley, Phys. Rev. A 57, 3469 (1998)
M.L. Garg, R.R. Garg, F. Hennrich, D. Heimermann, Nucl. Instrum. Meth. B 73, 109 (1993)
D.V. Rao, T. Takeda1, Y. Itai, T. Akatsuka, S.M. Seltzer, J.H. Hubbell, R. Cesareo, A. Brunetti, G.E. Gigante, Phys. Scr. 65, 398, (2002)
E. Casnati, C. Baraldi, A. Tartari, Phys. Rev. A 42, 2627 (1990)
E. Browne, R.B. Firestone, Table of Radioactive Isotopes, edited by V.S. Shirley (Wiley, New York, 1986)
S. Kumar, V. Sharma, D. Mehta, N. Singh, Phys. Rev. A 77, 032510 (2008)
M.J. Berger, J.H. Hubbell, XCOM: NBSIR85-3597, National Bureau of Standards, Gaithersburg, MD, USA, version 3.1 (1999), available from: http://physics.nist.gov/
O.D. Goncalves, S.D. Magathaes, Radiat. Phys. Chem. 59, 201 (2000)
J. Singh, R. Singh, D. Mehta, N. Singh, P.N. Trehan, in Proceedings of the DAE symposium on Nuclear Physics, Nucl. Phys. B 37, 455 (1995)
J.H. Scofield, Lawrence Livermore Laboratory Report No. UCRL-51326, Lawrence Livermore Laboratory, CA (1973)
J.L. Campbell, At. Data Nucl. Data Tables 85, 291 (2003)
J.H. Hubbell, W.J. Veigele, E.A. Briggs, R.T. Brown, D.T. Cromer, R.J. Howerton, J. Phys. Chem. Ref. Data 4, 471 (1975); J.H. Hubbell, W.J. Veigele, E.A. Briggs, R.T. Brown, D.T. Cromer, R.J. Howerton, J. Phys. Chem. Ref. Data 6, 615(E) (1977)
P.R. Bavington, Data reduction and error analysis for the physical sciences (McGraw Hill, New York, 1969), p. 66
A. Kumar, J.S. Shahi, D. Mehta, N. Singh, Nucl. Instrum. Meth. B 194, 105 (2002)
M. Jung, R.W. Dunford, D.S. Gemmell, E.P. Kanter, B. Krässig, T.W. LeBrun, S.H. Southworth, L. Young, J.P. Carney, L. LaJohn, R.H. Pratt, P.M. Bergstrom, Phys. Rev. Lett. 81, 1596 (1998)
F. Smend, H. Czerwinski, Z. Phys. D 1, 139 (1996)
R.B. Taylor, P. Teansomprasong, I.B. Whittingham, Phys. Rev. A 32, 151 (1985)
O.D. Goncalves, C. Cusatis, I. Mazzaro, Phys. Rev. A 48, 4405 (1993)
S.S. Nandi, R. Dutta, N. Chaudhury, J. Phys. B: At. Mol. Phys. 20, 4027 (1987)
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Kumar, S., Sharma, V., Shahi, J. et al. Elastic scattering of \(\sf{59.54}\)-keV \(\sf{\gamma}\)-rays in elements with \(\sf{22 \leq {Z} \leq {92}}\) at momentum transfer \(\sf{0.4 \leq {x} \leq 4.7~{\AA}^{\sf -1}}\) . Eur. Phys. J. D 55, 23–33 (2009). https://doi.org/10.1140/epjd/e2009-00208-4
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DOI: https://doi.org/10.1140/epjd/e2009-00208-4