Effect of Gamma Irradiation on Nutritional Value of Dry Field Beans (Phaseolus vulgaris) for Chicks

A receiving layer of a radiant energy concentrator has a set of collecting members arranged on a same level. In one embodiment upper edges of the members form a hexagonal honeycomb structure in a plane, and in another embodiment the members form an orthogonal matrix of square shaped elements. In the hexagonal honeycomb structure the collecting members are made in the form of funnels with reflective internal surfaces, and in the orthogonal matrix the collecting members are optical lenses or made in the form of paraboloidal-hyperboloidal concentrators. Layers having reflectors are provided under the receiving layer. Light beams from peripheral collecting members are transmitted by reflectors disposed under the receiving layer to a center of a central member. Successive layers further concentrate receiving light beams in a similar manner.