Application of the method and device to a water well will permanently seal the well casing in order to prevent hydraulic cross-contamination with other water wells in the area. The apparatus includes a sample reservoir for receiving a liquid sample and a pressure regulator for applying hyperbaric pressure to a sample within the reservoir. The difference between each of line widths is obtained, from which the flare rate is calculated. The first audio output device is an earphone and the second audio output device is an external speaker. Repairing of the irradiation region and similar repairing is then performed with respect to matching processing for a pattern for a normal secondary ion image or secondary electron image for the ion beam defect repairing apparatus and extraction is performed by the AFM.