| 摘要 |
PROBLEM TO BE SOLVED: To provide an X-ray irradiation type ionizer utilizing X-ray. SOLUTION: In the X-ray irradiation type ionizer 1 equipped with a gas supply exhaust port capable of supplying and exhausting an outside gas and an irradiation window 3 capable of transmitting the X-ray in an airtight cabinet 4 in which the interior can be retained to have a low pressure airtight state, this X-ray irradiation type ionizer 1 is equipped with an insulator 5 arranged and installed inside the airtight cabinet 4 nearly in parallel to the irradiation window 3 and a filamentary electrode 6 which is arranged and installed between the insulator 5 and the irradiation window 3 so as to oppose to the insulator 5, applies voltage to the insulator 5 and electrifies its surface. According to necessity, it is equipped with a protecting member 7 for preventing scattering of the X-ray and protecting the irradiation window 3 which protrudes to the outside along the peripheral part of the irradiation window 3. COPYRIGHT: (C)2008,JPO&INPIT
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