塞曼效应原子吸收光谱仪中偏振辐射的测量

• 作 者: 杨啸涛
• 机 构: 江西省地质局中心实验室
• 出 处: 分析测试通报
• 发表日期: 1985年03期
• 关键词: 偏振辐射 塞曼效应 原子吸收光谱仪 偏振面 偏振方向 电矢量 量子效率 光学系统 栅槽 信号幅度

恒定磁场的塞曼效应原子吸收光谱(ZAAS)仪器通常采用P∥和P⊥的偏振辐射调制。检测器输出的电信号幅度随调制棱镜的旋转而周期地变化。这是因光学系统对不同偏振方向的辐射传输效率不同,而由光栅引起的,当偏振辐射的电矢量平行于光栅刻槽、且波长与光栅槽距相当时,能量损失较大;其次,检测器对不同偏振面的辐射量子效率

Zeeman effect atomic absorption spectroscopy (ZAAS) instruments for constant magnetic fields are typically modulated with P // and P⊥ polarized radiation. The amplitude of the electrical signal output by the detector periodically varies with the rotation of the modulation prism. This is due to the optical system for different polarization direction of the radiation transmission efficiency is different from the grating caused when the polarized radiation of the electrical vector parallel to the grating groove, and the grating length and grating pitch equivalent energy loss greater; Second, the detection Radiation Quantum Efficiency of Different Polarization Planes