1. Microwave is of non- ionizing energy from matter heated in electromagnetic field by high frequency. The change in granular properties of starches through microwave radiation is studied.

2. A filter may be provided for blocking ionizing energy from the source in regions other than a region proximate the characteristic emission peak.

3. Microwave is of non - ionizing energy from matter heated in electromagnetic field by high frequency.

4. The system also includes a source having a second atomic species for emitting an ionizing energy.

5. The model reflects the atomic properties, such as bulk work funtion, atomic radius and first ionizing energy value, and ignores the finer UFP structures.