Chemical Sciences: A Manual for CSIR-UGC National Eligibility Test for Lectureship and JRF/Wien filter

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A Wien filter is a device consisting of perpendicular electric and magnetic fields that can be used as a velocity filter for charged particles, for example in electron microscopes and spectrometers.[1][2] It is named for Wilhelm Wien who developed it in 1898 for the study of anode rays.[3][4] It can be configured as a charged particle energy analyzer, monochromator, or mass spectrometer.[2][1]

References[edit | edit source]

  1. ↑ a b H. H. Rose (2008). "Optics of high-performance electron Microscopes". Science and Technology of Advanced Materials (free download review on electron optics). 9: 014107. doi:10.1088/0031-8949/9/1/014107. {{cite journal}}: |format= requires |url= (help)
  2. ↑ a b Galejs, A. (1978). "Focusing and dispersing properties of a stigmatic crossed-field energy analyzer" (free-download pdf). Journal of Vacuum Science and Technology. 15: 865. doi:10.1116/1.569615.
  3. ↑ Wien, W. Ann. der Physik. 65: 440. {{cite journal}}: Missing or empty |title= (help)
  4. ↑ Wien, Karl (1999). "100 years of ion beams: Willy Wien's canal rays" (free-download pdf). Brazilian Journal of Physics. 29. doi:10.1590/S0103-97331999000300002.
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