| 摘要 |
A vapor deposition apparatus comprises as a vaporization assembly a container in form of a boat or crucible and a support for vapor depositing phosphor or scintillator material thereupon from raw materials present in said container, wherein said boat or crucible internally comprises an assembly of two perforated covers or lids, one of which is an outer lid (also called first lid) more close to the said support and the other cover is an inner lid (also called second lid) more close to the bottom of the said crucible; and wherein perforations present in said outer lid represent a total surface exceeding the total surface of perforations present in said inner lid more close to the bottom of the said crucible and wherein in said vapor deposition apparatus the said raw materials or the bottom of the said crucible cannot be directly seen through said perforations from any point of said support; thereby providing the manufacturing of a radiation image storage phosphor layer on a support or substrate, by a vapor depositing step of raw materials of an alkali metal halide salt and a lanthanide dopant salt or a combination thereof in order to ensure vapor deposition of a binderless needle-shaped storage phosphor layer in the said vapor deposition apparatus, so that a ratio between the total surface of perforations in said inner lid more close to the bottom of crucible and the total surface of perforations in said outer lid more close to the support is not more than 1.0.
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