Egan, P.
and Stone, J.
(2011),
Temperature Stabilization System with Millikelvin Gradients for Air Refractometry Measurements Below the 10^-8 Level, NCSL International Measure, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=907214
(Accessed December 14, 2024)
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Temperature Stabilization System with Millikelvin Gradients for Air Refractometry Measurements Below the 10^-8 Level
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Abstract
Refractometry of air is a central problem for interferometer-based dimensional measurements. Refractometry at the 10−9 level is only valid if air temperature gradients are controlled at the millikelvin (mK) level. Very precise tests of secondgeneration National Institute of Standards and Technology (NIST) refractometers involve comparing two instruments (two optical cavities made from ultralow expansion glass) that are located in nominally the same environment; temperature gradients must be kept below a few millikelvin to achieve satisfactory precision of these tests. This paper describes a thermal stabilization scheme that maintainsCitation
NCSL International Measure
Volume
6
Issue
7
Pub Type
Journals
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Created March 1, 2011, Updated February 19, 2017