RTAB: the Rayleigh scattering database

RTAB data files are available at:

A published account of RTAB is also available:

Also see:

Contents:

• Abstract and dedication
  
• 1. Introduction
  
• 2. Calculating Rayleigh amplitudes and cross sections
  
• 3. Directory structure of the RTAB database
  
• 4. UFO library-structured files and (x,y) data tables
  
• 5. Dirac-Slater atomic potentials (data_SCF)
  
• 6. Differential elastic-scattering cross-section tables (tables_SM, tables_MFASF, tables_RFASF, tables_MF, tables_RF, tables_NF)
  
• 7. Anomalous scattering factors (tables_ASF, data_ASF)
  
• 8. Atomic form factors (data_MF, data_RF, data_NF)
  
• 9. Photoeffect cross sections. 0-50 MeV (data_PE)
  
• 10. Bound-bound oscillator strengths (data_BBT, data_SRBBT)
  
• 11. Selected source codes (code)
  
• 12. Selected work of other authors (others)
  
• 13. Interpolating S-matrix cross sections
  
• 14. Conclusions
  
• Acknowledgements
  
• References
  

Tables:

• Table 1. Contents of the RTAB database (version 2.0).
• Table 2. Explicit values (in degrees) for 97-point angle grid for differential cross-section tabulations.
• Table 3. Explicit values (in keV) for 56-point photon-energy grid for differential-cross section tabulations.
• Table 4. Values of the unpolarized differential elastic-scattering cross section for 59.54-keV photons scattered through 90° by Lead (Pb, Z=82) in various approximations, as stored in the specified data files of the Rayleigh scattering database.
• Table 5. Values of the anomalous scattering factors for selected atoms at 8.04778 keV from the RTAB database.
• Table 6. Selected zero-momentum-transfer (x=0 1/Å) form-factor values for Pb from the RTAB database.
• Table 7. Selected total-atom photoeffect cross sections for Pb are extracted from the file 'data_PE/082_pe0slx' in the RTAB database.
• Table 8. Selected occupied-to-unoccupied bound-bound oscillator strengths for Pb are extracted from the file 'data_BBT/082_bbt0sl' in the RTAB database.
• Table 9. Selected spurious-resonance bound-bound oscillator strengths for Pb are extracted from the file 'data_SRBBT/082_srbbt0sl' in the RTAB database.
• Table 10. SM/MFASF ratio of unpolarized differential scattering cross sections at selected energies and angles for Pb. While the SM/MFASF ratio varies by about a factor of 5 in this table, the underlying differential cross sections vary by a factor of 107.

Figures:

• Figure 1. The resonant structure of elastic scattering through 90° for Lead (Pb, Z=82), observed in our SM and ASF calculations, is usually ignored in simpler approximations.

Contacts

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Information date: Sep. 2, 2000 lk