| abstract |
In a filter which absorbs radiology emissions for medical applications using a controlled matrix contained within a housing, and directing the emissions (2) at a liquid within the housing the novelty is that: (a) the housing (7) has a first and second chamber (9, 10) separated from each other by a sealed flexible membrane (8); (b) the two chambers each contain different fluids (13, 14) which have different responses to radiological emissions; (c) one fluid is a magneto-rheological or electro-rheological fluid, and one of which is subjected to at least a given minimum pressure; (d) the matrix is constructed to generate a magnetic or electro-magnetic field, independent of the rheological fluid; (e) the membrane can be displaced as required, adjusting the thickness ratio of the two fluids contained in their respective chambers (9, 10). |