PURPOSE: To analyze nondestructively a matrix by arranging a structure with slits at the transmission side of X-rays of the matrix for photofibers, moving the matrix relatively to the slit and detecting only X-rays transmitted through the matrix and the slits.
CONSTITUTION: The inspection device comprises an X-ray source 2 accommodated in a machine box made of lead or the like, a sample loading bedplate 7 movable in the radial direction of a photofiber matrix 10 and made of a material transmitting X-rays, a slit structure 8 made of a metal, an X-ray detector 3, an amplifier 4, and a recorder 5 such as a pen recorder or the like. The photofiber matrix 10 is constituted by a core glass layer 11 containing Ge for adjusting the refractive index and a cladding glass layer 12 containing no Ge. Since Ge has a large absorption coefficient especially to X-rays as compared with these glass main components, the variation of the transmission quantity of X-rays is displayed in the recorder 5 while moving the matrix in the horizontal direction shown by arrow, whereby the analysis of the matrix can be performed nondestructively.
TAKADA HISAO
TAKAHASHI HIROSHI
SHIBUYA TERUJI
FURUKAWA ELECTRIC CO LTD
| GB1384245A | 1975-02-19 |