_diffrn_source.diffrn_id       's1'
    _diffrn_source.source          'rotating anode'
    _diffrn_source.type            'Rigaku RU-200'
    _diffrn_source.power           '50 kw, 180 mA'
    _diffrn_source.target          '8mm x 0.4 mm broad-focus'
       
    _diffrn_source.source          'rotating anode'
    _diffrn_source.type            'Rigaku RU-200'