摘要
计算了合肥光源软Ｘ射线光束线中光子通量与波长的关系；利用ＡＸＵＶ硅光电二极管测量了当单色仪使用（ＣＺＰ３２波带片和３０μｍ针孔时光电流与波长的关系曲线；根据光电流及光电二极管的量子效率得到了在真空隔离窗外２．８～３．９ｎｍ波长范围内的光子通量绝对数值为２．７ ×１０５－８．０ × １０５ｐｈｏｔｏｎｓ／（ｓ·ｍＡ·０．１ｎｍＢＷ），并由理论估算得到真空室中光子通量比真空室外高两个量级，约为 １０７ｐｈｏｔｏｎｓ（ｓ· ｍＡ· ０．１ｎｍＢＷ）。
The relationship between the photon flux and the wave length of the soft X - ray beamline in Hefei Light Source (HLS) was calculated. The photocurrent was measured by an AXUV photo diode when a condense zone plate of CZP32 type and a pinhole of 30 microns were adopted by the monochromator. Accoding to the photocurrent and the quantum efficiency of the diode, the absolute photon flux outside the vacuum separation window in a range of 2. 8 nm to 3. 9 nm was measured to be 2. 7 ×105-8. 0 ×105 photons/(s. mA·0. 1nmBW). By theoretical calculation, It was found that the photon flux inside the vacuum chamber was about 107 photons(s·mA·0. 1nmBW), which was two orders higher than the value outside.
出处
《核技术》
CAS
CSCD
北大核心
2001年第7期529-533,共5页
Nuclear Techniques
基金
国家自然科学基金(39770195)
