A control center receives, from the first bank, a first request with a first set of requirements for placement of reciprocal deposits. The apparatus comprises a xenon flash unit, an optical filter and a Y-shaped optical fiber-bundle, one branch of the fiber-bundle being coupled to the flash unit and the other branch of the fiber-bundle being coupled to a detection unit and the merged part of the fiber-bundle being adapted to couple the apparatus to the tissue to be tested. The process of the present Invention results in the formation of metal nitrates and more particularly aqueous solutions of metal nitrates containing reduced amounts of ammonium nitrate. The processor and the memory are adapted to cooperate to provide an address that is proximate to the device. Padding is arranged on the outer side of the plates and the panels.