SAMPLE FOR QUALITY EVALUATION OF QUARTZ GLASS CRUCIBLE, PRODUCTION METHOD OF THE SAME, EVALUATION METHOD USING THE SAMPLE, AND PRODUCTION APPARATUS OF THE SAMPLE

PROBLEM TO BE SOLVED: To provide a sample for the quality evaluation of a quartz glass crucible, a production method of the sample, an evaluation method of the quality and the like using the sample, and a production apparatus of the sample. SOLUTION: A quartz glass crucible is cut out into a U shape or J shape in the direction containing the center of the crucible to make a primary sample. The primary sample is cut out in the direction perpendicular to the cutting-out direction of the primary sample and in the thickness direction of the primary sample to make a secondary sample. While the inner wall surface and the outer wall surface of the crucible are left, a plurality of grooves are cut between the inner wall surface and the outer wall surface, whereby a sample for the quality evaluation having a plurality of strip-shaped portions thus provided is produced, and is used for the evaluation. COPYRIGHT: (C)2011,JPO&INPIT