@article{342c68f6b8e241cfb70d27b91f9a5a72,
title = "On the heating of a field ion microscope specimen",
abstract = "The temperature distribution in a field ion microscope (FIM) specimen heated simultaneously by thermal radiation, the imaging gas, and an energetic beam of charged particles was calculated in the steady-state approximation employing a realistic model for the FIM specimen. The variation in crosssectional area of the specimen with distance along the shank was taken into full account. The possibility of a temperature change caused by the thermoelastic effect was also considered and shown not to be of importance. The value of ∆Tmax (maximum temperature difference along the length of the specimen) was ~2·5×10–3°k at the best image field (4·4 v {\AA}–1) for tungsten imaged at 15°k with helium gas. Hence, it was concluded that the act of observing a specimen by field ion microscopy did not perturb appreciably the temperature of the tip. It was also shown that a rather high energy density beam of energetic particles was required to produce a significant value of ∆Tmax.",
author = "Seidman, {D. N.} and Scanlan, {R. M.}",
note = "Funding Information: Q 1. INTRODUCTION THE use of the field ion microscope (FIM) for problems such as the direct observation of defects, desorption studies, fundamental experiments concerning image contrast, field evaporation, and field ionization requires an accurate knowledge of the temperature distribution in the specimen. In the present work we have calculated the steady-state temperature dis- tribution in a FIM specimen heated simultaneously by thermal radiation, the imaging gas, and an energetic beam of charged particles$. A realistic model for the FIM specimen was employed, and the variation in the cross-sectional area of the specimen with position along the specimen was taken into full account. In addition the possibility of a heating (cooling) effect Contract AT(30-1)-3604. Additional support was received from the Advanced Research Projects Agency through the use of the Central Facilities of the Materials Science Center at Cornell University. $ The problem of heating of field electron emitters, in connection with the subject of electrical breakdown in high vacuum, has been considered by Charbonnier, Bennette and Swanson (1967) for short cylindrical and conical protrusions heated resistively and also heated (or cooled) by the Nottingham effect. But to date no detailed discussion of the heating effects encountered commonly in FIM specimens has appeared in the literature.",
year = "1971",
month = jun,
doi = "10.1080/14786437108217012",
language = "English (US)",
volume = "23",
pages = "1429--1437",
journal = "Philosophical Magazine",
issn = "0031-8086",
publisher = "Taylor and Francis Ltd.",
number = "186",
}