Technical Physics Letters

, Volume 44, Issue 2, pp 178–180 | Cite as

Field-Induced Desorption of Cesium from Rhenium

  • D. P. Bernatskii
  • V. G. Pavlov


Desorption of cesium atoms from a rhenium point emitter in an electric field has been studied by method of field-desorption microscopy (FDM). Dependence of the desorbing field on degree of emitter surface coverage with Cs atoms is established. The heat of Cs-atom adsorption, which is dependent on the surface concentration of adsorbate and work function of the surface, is estimated in the framework of the model of mirror-image forces for field-induced desorption. Saturation of the rhenium emitter with carbon leads to changes in the character of desorption and in the distribution of desorption zones on the emitter surface.


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© Pleiades Publishing, Ltd. 2018

Authors and Affiliations

  1. 1.Ioffe Physical Technical InstituteRussian Academy of SciencesSt. PetersburgRussia

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