Wave numbers and Ar pressure-induced shifts of 198Hg atomic lines measured by Fourier transform spectroscopy
Wave numbers and Ar pressure-induced shifts of 198Hg atomic lines measured by Fourier transform spectroscopy
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傅里叶变换光谱测量 198Hg 原子谱线的波数和 Ar 压力引起的位移
DOI：
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发表时间：
2005
期刊：
影响因子：
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通讯作者：
J. Travis
中科院分区：
文献类型：
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作者：
D. Veẑa;M. Salit;C. Sansonetti;J. Travis
使用紫外/可见傅里叶变换光谱仪（FTS）的波数和氩气压力引起的汞发射线的位移进行了测量。用含有同位素纯198 Hg和氩缓冲气体的无电极灯在33 Pa（1/4 Torr）、400 Pa（3 Torr）、933 Pa（7 Torr）和1333 Pa（10 Torr）的压力下进行观察。FTS波数标度的校准是从四条最突出的198 Hg线获得的（546.2 nm处6p 3 P2 -7s 3S 1，436 nm处6p 3 P1 -7s 3S 1，404.8 nm处6p 3 P0 -7s 3S 1和365.1 nm处6p 3 P2 -6d 3D 3），使得能够以高精度测量其它UV和可见汞跃迁的波数和氩压力偏移。我们的测量提供了新的数据的波数和压力引起的位移的20汞线。从400 Pa（3 Torr）灯发射的汞线的波数可用作电感耦合等离子体（ICP）光谱化学分析或使用中等分辨率单色仪的实验中波长校准的标准。压力引起的位移的198汞发射线是在合理的协议与理论预测，并可能是感兴趣的验证计算的汞-氩相互作用。
Wave numbers and argon-pressure-induced shifts of mercury emission lines were measured using a UV/visible Fourier transform spectrometer (FTS). The observations were made with electrodeless lamps containing isotopically pure 198Hg and argon buffer gas at pressures of 33 Pa (1/4 Torr), 400 Pa (3 Torr), 933 Pa (7 Torr) and 1333 Pa (10 Torr). Calibration of the FTS wave number scale was obtained from the four most prominent 198Hg lines (6p 3P2–7s 3S1 at 546.2 nm, 6p 3P1–7s 3S1 at 436 nm, 6p 3P0–7s 3S1 at 404.8 nm and 6p 3P2–6d 3D3 at 365.1 nm), enabling measurements of wave numbers and argon pressure shifts of other UV and visible mercury transitions with high accuracy. Our measurements provide new data for the wave numbers and pressure-induced shifts of 20 mercury lines. The wave numbers of mercury lines emitted from the 400 Pa (3 Torr) lamp can be used as standards for wavelength calibration in inductively coupled plasma (ICP) spectrochemical analysis or in experiments where medium-resolution monochromators are used. The pressure-induced shifts of the 198Hg emission lines are in reasonable agreement with theoretical predictions and could be of interest for validating calculations of mercury–argon interactions.