发明名称 |
Apparatus and method for detection of vacuum ultraviolet radiation |
摘要 |
Vacuum ultraviolet radiation detection apparatus (10) comprises a radiation detector (30) in a chamber (12). The detector (30) receives ultraviolet radiation from a radiation source (36). The chamber is evacuated using a dry vacuum pump (18) to a relatively poor vacuum of no less than 5 Pa. UV transparent gas is supplied from a gas supply (26), into the chamber (12) at a relatively low flow rate (around 0.1 liters/minute) so as to provide an overall pressure in the chamber (12) of between 100 and 1,000 Pa. The use of a relatively inexpensive pump coupled with a lower gas flow rate provides significant cost savings.
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申请公布号 |
US7476866(B2) |
申请公布日期 |
2009.01.13 |
申请号 |
US20060570863 |
申请日期 |
2006.03.07 |
申请人 |
THERMO FISHER SCIENTIFIC INC. |
发明人 |
VINCENT FRANCOIS;CABRAS ANTONIO |
分类号 |
G01J1/42;G01J3/443 |
主分类号 |
G01J1/42 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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