紧凑型电子自旋共振(ESR)仪
收稿日期: 2015-09-02
修回日期: 2016-01-23
网络出版日期: 2016-03-05
Compact ESR Equipment
Received date: 2015-09-02
Revised date: 2016-01-23
Online published: 2016-03-05
描述了一种原创的紧凑型电子自旋共振(ESR)仪.该仪器具备高性能、低成本、简单可靠、结构紧凑、开放构架、多功能模块等一系列特点.分析了ESR谱仪的多个微波单位,研发并通过实验验证了自差ESR谱仪的最优双腔结构,并设计了一种可提供高均匀磁场的电、永磁混合磁体.最后介绍了这种新型紧凑型电子自旋共振仪的主要参数和应用.
关键词： 电子自旋共振(ESR); 零差和自差ESR谱仪; 磁体系统; 电子自旋共振应用
Yury V. BOGACHEV , Mikhail N. KNYAZEV , Yaroslav Yu. MARCHENKO . 紧凑型电子自旋共振(ESR)仪[J]. 波谱学杂志, 2016 , 33(1) : 27 -36 . DOI: 10.11938/cjmr20160102
In this paper we represent our original developments of a compact electron spin resonance (ESR) instrument, which is featured with high performance, low cost, reliability and simplicity, open architecture, small size, and a wide range of functional modules and units. Various constructions of the ESR spectrometer microwave units were analyzed. An optimal two-cavity construction for autodyne type ESR spectrometers were finally developed and investigated experimentally. The ESR instrumentation presented also involved compact magnet systems based on electromagnets and permanent magnets with high uniformity of magnetic field. The specifications of the compact ESR instrument developed, as well as a list of applications, are presented. Some special applications of compact ESR spectrometers are discussed.
[1] [OL] http://www.bruker.com
[2] [OL] http://www.activespectrum.com
[3] [OL] http://www.magnettech.de
[4] [OL] http://www.resonanceinstruments.com
[5] [OL] http://www.adani.by
[6] [OL] http://www.resonance-m.com
[7] Bogachev Yu V, Drapkin V Z, Knyazev M N, et al. Compact problem-oriented EPR equipment. (Rus.)[J]. Izvestia SPbSETU “LETI”, Russia, 2009, 7: 12－22.
[8] Hogg R D. A low cost X-band IMPATT diode marginal oscillator for EPR[J]. Am J Phys, 1973, 41(2): 224－229.
[9] Rupp L W, Walsh W M, Steinfeld A. Simplified microwave frequency electron spin resonance spectrometer[J]. Am J Phys, 1970, 38(2): 238－242.
[10] Bogachev Yu V, Drapkin V Z, Knyazev M N, et al. EPR and ENDOR investigations of isoprene polymerization catalysts. The EPR application in synthetic rubber industry. (Rus.)[J]. Izvestia SPbSETU “LETI”, Russia, 2009, 3: 9－14.
[11] Saakov V S, Drapkin V Z, Krivchenko A I, et al. Derivative Spectrophotometry and Electron Spin Resonance (ESR) Spectroscopy for Ecological and Biological Questions[M]. New York: Springer-Verlag Wien, 2013.
[12] Bogachev Yu V, Drapkin V Z, Knyazev M N, et al. Magnetic Resonance. Basics and Applications (Rus.)[M]. Russia: Saint-Petersburg, SPbSETU “LETI”, 2009.
[13] Gancheva V, Yordanov N D, Callens F, et al. An international intercomparison trial on “self-calibrated” alanine EPR dosimeters[J]. Radiat Phys Chem, 2008, 77(3): 357－364.
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