Selenium
      Akahama Y, Kobayashi M, Kawamura H
      Japanese Journal of Applied Physics 31 (1992) 1621-1624
      Structural study on pressure-induced phase transition from beta-Po type to bcc in selenium at 140 GP
      Locality: synthetic
      Sample: at P = 110 GPa
      Note: structure known as beta-Po type, phase Se V
      _database_code_amcsd 0012745

      CELL PARAMETERS:    3.8340   3.8340   2.8480   90.000   90.000  120.000
      SPACE GROUP: R-3m      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:     36.256
      Density (g/cm3):     10.848
      MAX. ABS. INTENSITY / VOLUME**2:      333.1486942    
      RIR:     10.000
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                41.79        100.00        2.1617    1   0   1         6
                47.43         67.78        1.9170    1   1   0         6
                65.03         24.50        1.4343    0   2   1         6
                72.18         17.51        1.3087    0   1   2         6
                84.33         22.25        1.1484    2   1   1        12
                88.30          9.93        1.1068    3   0   0         6
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       XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs
  For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.