软X射线能谱仪与透射光栅谱仪测量结果的对比

COMPARISON OF SOFT X-RAY SPECTROMETER AND TRANSMISSION GRATING SPECTROMETER

对软 X射线谱仪和透射光栅谱仪的测量结果进行了对比。它们的回推谱形大致符合 ,只是透射光栅谱仪的复原谱的 N带相对于 O带太小。其原因可能是 X射线 CCD受到靶室油沾污 ,在表面形成了碳膜 ,对 N带吸收较多。经过对透射光栅谱进行吸收补偿后 ,两种谱仪的复原谱基本一致。

Unfolded spectra measured by soft X ray spectrometer (SXS) and transmission grating spectrometer (TGS) respectively are compared. The unfolded spectra are roughly alike, but N band lines in the spectra unfolded by TGS are too small in comparison with O band lines. It is possibly because oil in the target clamber forms carbon foil on the CCD surface and contaminates the X ray CCD. This foil filter absorbs more rays with N band than those of O band. After absorptive compensation, SXSs and TGSs unfolded spectra are basically the same.