Terms: Pyroelectric Fusion (622), pyroelectric (180,000), pyro-electric (1,660), pyroelectric x-ray (91), piezoelectric fusion (6), piezoelectric x-ray (20),
Boolean: pyroelectric +fusion (6,560), pyroelectric +(neutron OR neutrons) (3,720), pyroelectric +"x-ray" (37,000), piezoelectric +(neutron OR neutrons) (70,000),
Terms: sonoluminescence (107,000), bubble fusion (41,700), crystal fusion (3,730), electrostatic fusion (913),