| 光谱学与光谱分析 |
|
|
|
|
|
| Measurement of Atomic Number of Alkali Vapor and Pressure of Buffer Gas Based on Atomic Absorption |
| ZHENG Hui-jie1, QUAN Wei1*, LIU Xiang2, CHEN Yao1, LU Ji-xi1 |
1. Science and Technology on Inertial Laboratory, Fundamental Science on Novel Instrument & Navigation System Technology Laboratory, Beihang University, Beijing 100191, China
2. Shanghai Aerospace Control Engineering Research Institute, Shanghai 200233, China |
|
|
|
|
Abstract High sensitivitymagnetic measurementscanbe achieved by utilizing atomic spinmanipulation in the spin-exchange-relaxation-free (SERF) regime, which uses an alkali cell as a sensing element. The atomic number density of the alkali vapor and the pressure of the buffer gasare among the most important parameters of the cell andrequire accurate measurement. A method has been proposed and developedto measure the atomic number density and the pressure based on absorption spectroscopy, by sweeping the absorption line and fittingthe experiment data with a Lorentzian profile to obtainboth parameters. Due to Doppler broadening and pressure broadening, which is mainly dominated by the temperature of the cell and the pressure of buffer gas respectively, this work demonstrates a simulation of the errorbetween the peaks of the Lorentzian profile and the Voigt profile caused by bothfactors. The results indicates that the Doppler broadening contribution is insignificantwith an error less than 0.015% at 313～513 K for a 4He density of 2 amg, and an error of 0.1% in the presence of 0.6～5 amg at 393 K. We conclude that the Doppler broadening could be ignored under above conditions, and that the Lorentzianprofile is suitably applied to fit the absorption spectrumobtainingboth parameters simultaneously. In addition we discuss the resolution and the instability due to thelight source, wavelength and the temperature of the cell. We find that the cell temperature, whose uncertainty is two orders of magnitude larger than the instability of the light source and the wavelength, is one of the main factors which contributes to the error.
|
|
Received: 2014-01-21
Accepted: 2014-04-08
|
|
|
|
Corresponding Authors:
QUAN Wei
E-mail: quanwei@buaa.edu.cn
|
|
[1] Auzinsh M, Budker D, Rochester S, et al. Optically Polarized Atoms: Understanding Light-Atom Interactions. Oxford: Oxford University Press, 2010.
[2] Ledbetter M P, Savukov I M, Acosta V M, et al. Physical Review A, 2008, 77(3): 033408.
[3] Budker D, Romalis M. Nature Physics, 2007, 3(4): 227.
[4] Forouhar S, Briggs R M, Frez C, et al. Applied Physics Letters, 2012, 100(3): 031107.
[5] Cui X, Lengignon C, Tao W, et al. Journal of Quantitative Spectroscopy and Radiative Transfer, 2012, 113(11): 1300.
[6] Wang J, Maiorov M, Jeffries J B, et al. Measurement Science and Technology, 2000, 11(11): 1576.
[7] Rui-Feng K, Wen-Qing L, Yu-Jun Z, et al. Acta Physica Sinica, 2005, 54(4): 1927.
[8] Couture A H, Clegg T B, Driehuys B. Journal of Applied Physics, 2008, 104(9): 094912.
[9] Romalis M V, Miron E, Cates G D. Physical Review A, 1997, 56(6): 4569.
[10] Kluttz K A, Averett T D, Wolin B A. Physical Review A, 2013, 87(3): 032516.
[11] Volz U, Schmoranzer H. Physica Scripta, 1996, T65: 48. |
| [1] |
WANG Peng1, GAO Yong-bao1*, KOU Shao-lei1, MEN Qian-ni1, ZHANG Min1, HE Tao1, YAO Wei2, GAO Rui1, GUO Wen-di1, LIU Chang-rui1. Multi-Objective Optimization of AAS Conditions for Determination of Gold Element Based on Gray Correlation Degree-RSM Model[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2023, 43(10): 3117-3124. |
| [2] |
HOU Ya-ru, LU Ji-long*, FAN Yu-chao, Abudusalamu·KADIER, TANG Xiao-dan, WEI Qiao-qiao, GUO Jin-ke, ZHAO Wei. Uncertainty Evaluation and Method Improvement of Determination of Copper, Lead, and Zinc in Rocks by Atomic Absorption Spectrometry[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2022, 42(07): 2101-2106. |
| [3] |
LI Ling1, 2, 3, NAI Xue-ying1, 2*, CHAI Xiao-li1, 2, 3, LIU Xin1, 2, GAO Dan-dan1, 2, DONG Ya-ping1, 2. Optimization of Determination Method of Lithium in Oil-Field Water Based on DOE[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2020, 40(08): 2617-2621. |
| [4] |
ZOU Feng, ZHANG Xu-hui, YUAN De-yi*, ZHU Zhou-jun, TAN Lu-man, LIU Dong-ming. The Different Pollination Combinations in Castean henryi Determined by Auto Discrete Analyzers and Atomic Absorption Spectrometry[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2019, 39(01): 286-291. |
| [5] |
LINGYUN Xia-fei1, 2, GAO Chao1, 2, FAN Jing-shuang1, 2, Lü Hai-xia1, 2*, YU Yan1, 2. Synthesis of Hyperbranched Polyamidoamine (PAMAM) Grafted Chitosan and Its Adsorption for Heavy Metal and Dyes Studied with Spectroscopy[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2018, 38(11): 3583-3587. |
| [6] |
ZHANG Han, XUE Ai-fang, CHEN Hao, LI Sheng-qing*. Low-Density Solvent Based Dispersive Liquid-Liquid Microextraction Combined with Graphite Furnace Atomic Absorption Spectrometry for the Determination of Trace Lead and Cadmium in Domestic Water[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2018, 38(10): 3264-3268. |
| [7] |
CHI Hao-tian, WANG Xu-lin*, QUAN Wei*. Pressure Measurement of Each Gas in Alkali-Metal Vapor Cell with a Mixed Gas Based on Saturated Absorption Spectrum[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2018, 38(03): 948-952. |
| [8] |
YAO Shi-xiang1, 2, XIE Jiao1, ZENG Kai-fang1, 2*. Comparative Analysis of Several Mineral Elements Contents in Vascular Bundle of Satsuma Mandarin and Ponkan Mandarin Fruit[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2017, 37(04): 1250-1253. |
| [9] |
QU Wei, ZHOU Cheng-ying, CAI Liu-lu, LI Wen-juan . Study on Determination of Molybdenum in Molybdenum Concentrate by Atomic Absorption Spectrometry Indirectly[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2017, 37(03): 984-989. |
| [10] |
FAN Chun-hui1, DU Bo1, ZHANG Ying-chao2, GAO Ya-lin1, CHANG Min1 . Determination of Lead and Cadmium in Calendula Officinalis Seedlings for Phytoremediation of Multi-Contaminated Loess by Using Flame Atomic Absorption Spectrometry with Wet Digestion[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2016, 36(08): 2625-2628. |
| [11] |
Lü Xiao-hua1, 2, ZHAO Meng-qi1, LI Jian-jun1, Ismayil Nurulla1*. Adsorption Behavior of Pb(Ⅱ) Ion Imprinted Magnetic Composite Adsorbent in Aqueous Solution by FAAS[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2016, 36(05): 1483-1487. |
| [12] |
ZU Wen-chuan1, 2, WANG Yu2*, ZHANG Yu-xiang2, LI Bing-ning2, LIU Cong2, REN Min2 . Detection of Sulfur Dioxide in Preserved Fruits with High Resolution Continuum Source Atomic Absorption Spectrometry Assisted with Distillation[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2016, 36(04): 1221-1224. |
| [13] |
SHANG Hui-ning, QUAN Wei*, CHEN Yao, LI Yang, LI Hong . The Measuring Method of Atomic Polarization of Alkali Metal Vapor Based on Optical Rotation and the Analysis of the Influence Factors [J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2016, 36(02): 305-309. |
| [14] |
HUANG Si-si, ZHANG Xu, QIAN Sha-hua* . Preconcentration of Trace Cu(Ⅱ) in Water Samples with Nano-Sized ZnO and Determination by GFAAS [J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2015, 35(09): 2420-2423. |
| [15] |
ZHAO Fang-biao2, SONG Nai-zhong1, NING Wei-kun2, JIA Qiong1* . Synthesis of Magnetic Metal Organic Framework Fe3O4@NH2-MIL-53(Al) Materials and Application to the Adsorption of Lead [J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2015, 35(09): 2439-2443. |
|
|
|
|
