abstract |
The performance of an analyzer is improved and maintenance is facilitated. A phosphor is a raw material containing alumina and at least one of Fe, Cr, Bi, Tl, Ce, Tb, Eu, and Mn, and sodium is contained in all raw materials in an amount of 6.1 to 15. It is manufactured by firing a raw material containing 9% by weight. [Selection] Figure 2 |