TEST BEAM GENERATION DEVICE, AND NONDESTRUCTIVE TESTING DEVICE AND METHOD

摘要

PPROBLEM TO BE SOLVED: To provide a test beam generation device for efficiently and nondestructively testing an internal state of a concrete structure. PSOLUTION: The test beam generation device includes: a femtosecond laser generator 1a for generating femtosecond laser pulses; a movable mirror 1b for alternatively emitting femtosecond laser pulses entering from the femtosecond laser generator 1a in a first direction or a second direction; a photoconductive antenna 1j for converting femtosecond laser pulses emitted in a first direction by the movable mirror 1b to terahertz light before emitting to the outside as a test beam; an ion beam generator 1n for generating an ion beam of a specific element based on the femtosecond laser pulses emitted in a second direction by the movable mirror 1b; and a neutron ray generator 1s for generating neutron rays based on the ion beam entering from the electron beam generator 1n for emitting to the outside as the test beam. Thus, the test beam generation device can perform an efficient nondestructive test. PCOPYRIGHT: (C)2011,JPO&INPIT