_diffrn_radiation.diffrn_id            'set1'
    _diffrn_radiation.collimation          '0.3 mm double pinhole'
    _diffrn_radiation.monochromator        'graphite'
    _diffrn_radiation.type                 'Cu K\a'
    _diffrn_radiation.wavelength_id         1
       
    _diffrn_radiation.wavelength_id    1
    _diffrn_radiation.type             'Cu K\a'
    _diffrn_radiation.monochromator    'graphite'
       
    _diffrn_radiation.diffrn_id            '1'
    _diffrn_radiation.wavelength_id        '1'
    _diffrn_radiation.monochromator        'graphite'