Superconducting Quantum Interference Device Detection of Acoustic Nuclear Resonance of Slight Metal Oxidation of the Inner Surface of Enclosed Lead Metal Shield

doi:10.13209/j.0479-8023.2017.047

Acta Scientiarum Naturalium Universitatis Pekinensis ›› 2017, Vol. 53 ›› Issue (5): 801-809.DOI: 10.13209/j.0479-8023.2017.047

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Superconducting Quantum Interference Device Detection of Acoustic Nuclear Resonance of Slight Metal Oxidation of the Inner Surface of Enclosed Lead Metal Shield

Jibo ZHANG¹, Kehuan LINGHU¹, Qianhong WU¹, Ruijuan NIE¹, Fengmei YU², Furen WANG¹()

1. State Key Laboratory for Artificial Structure and Mesoscopic Physics, School of Physics, Peking University, Beijing 100871
2. Xi’an Research Institute of Hi-tech, Xi’an 710025;;

Received:2016-05-23 Revised:2016-06-06 Online:2017-07-27 Published:2017-09-20

超导量子干涉仪与声核共振现象相结合探测封闭铅金属壳内表面的微量氧化情况

张继波¹, 令狐克寰¹, 吴倩红¹, 聂瑞娟¹, 喻凤梅², 王福仁¹()

1. 北京大学物理学院人工微结构和介观物理国家重点实验室, 北京 100871
2. 西安高技术研究所, 西安 710025;

基金资助:
国家自然科学基金(11174010)、北京市自然科学基金(4152021)和高等学校博士学科点专项科研基金(20120001110065)资助

Abstract

Abstract:

This paper established enclosed cylinder and spherical Pb²⁰⁷ models to give formulas about acoustic nuclear dipole resonance detection of their inner surface oxide-massicot (β-Pb²⁰⁷O). Some calculations on the variations of SQUID-detected magnetic flux dependence of the mass of the metal oxide and the external magnetic field are done to study the feasibility and superiority of SQUID-detected ANR technique under metallic shield with inner surface oxidation. An experiment process was designed which can be used to detect ANR-related parameters using SQUID.

Key words: superconducting quantum interference device, acoustic nuclear resonance, magnetic dipole coupling

摘要：

设计内表面微量氧化的封闭 Pb²⁰⁷(I=1/2)金属圆筒模型与球壳模型, 在使用超导量子干涉仪测量内表面氧化物β-Pb²⁰⁷O声核信号的前提下, 分别进行公式推导与验证, 为后续实验测量半导体材料中的偶极矩耦合信号进行理论计算。在相应的条件下, 得到超导量子干涉仪磁通变化与可测量的氧化物质量范围以及所加外场之间的关系, 并探讨使用超导量子干涉仪探测封闭金属圆筒与球壳内表面氧化物的声核共振现象的可行性与优越性。最后, 设计了一套使用超导量子干涉仪测量声核参量的实验方案。

关键词: 超导量子干涉仪, 声核共振, 磁偶极矩耦合

Jibo ZHANG, Kehuan LINGHU, Qianhong WU, Ruijuan NIE, Fengmei YU, Furen WANG. Superconducting Quantum Interference Device Detection of Acoustic Nuclear Resonance of Slight Metal Oxidation of the Inner Surface of Enclosed Lead Metal Shield[J]. Acta Scientiarum Naturalium Universitatis Pekinensis, 2017, 53(5): 801-809.

张继波, 令狐克寰, 吴倩红, 聂瑞娟, 喻凤梅, 王福仁. 超导量子干涉仪与声核共振现象相结合探测封闭铅金属壳内表面的微量氧化情况[J]. 北京大学学报自然科学版, 2017, 53(5): 801-809.

Figures/Tables 8

Fig. 1 Cylinder model

Fig. 2 Variation of measure distance dependence of SQUID-detected magnetic flux in Ta181 experiment

Table 1 Correspondence between mass and thickness of β-PbO layer in cylinder model

m/mg	δ/μm
0.05	3.72 ╳10^-3
0.1	7.44 ╳10^-3
1	7.44 ╳10^-2
10	7.44 ╳10^-1
100	7.43 ╳10⁰
1000	7.27 ╳10¹

Fig. 3 Variation of SQUID-detected magnetic flux dependence of the mass of β-PbO in cylinder model

Fig. 4 Magnetic field versus SQUID-detected magnetic flux calculated with different mass of β-PbO in cylinder model

Table 2 Correspondence between mass and thickness of β-PbO layer in spherical shell

m/mg	δ′/μm
0.001	3.71 ╳10^-3
0.01	3.71 ╳10^-2
0.1	3.71 ╳10^-1
1	3.70 ╳10⁰
10	3.62 ╳10¹
100	3.05 ╳10²

Fig. 5 Variation of SQUID-detected magnetic flux dependence of the mass of β-PbO in spherical model

Fig. 6 Magnetic field versus SQUID-detected magnetic flux calculated with different mass of β-PbO in spherical model

References 21

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Superconducting Quantum Interference Device Detection of Acoustic Nuclear Resonance of Slight Metal Oxidation of the Inner Surface of Enclosed Lead Metal Shield

超导量子干涉仪与声核共振现象相结合探测封闭铅金属壳内表面的微量氧化情况

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