Blackbody-radiation correction to the polarizability of helium
- Missouri University of Science and Technology, Rolla, Missouri 65409-0640 (United States)
- National Institute of Standards and Technology, Gaithersburg, Maryland 20899-8420 (United States)
The correction to the polarizability of helium due to blackbody radiation is calculated near room temperature. A precise theoretical determination of the blackbody radiation correction to the polarizability of helium is essential for dielectric gas thermometry and for the determination of the Boltzmann constant. We find that the correction, for not too high temperature, is roughly proportional to a modified hyperpolarizability (two-color hyperpolarizability), which is different from the ordinary hyperpolarizability of helium. Our explicit calculations provide a definite numerical result for the effect and indicate that the effect of blackbody radiation can be excluded as a limiting factor for dielectric gas thermometry using helium or argon.
- OSTI ID:
- 21544615
- Journal Information:
- Physical Review. A, Vol. 83, Issue 4; Other Information: DOI: 10.1103/PhysRevA.83.042508; (c) 2011 American Institute of Physics; ISSN 1050-2947
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ARGON
BLACKBODY RADIATION
COLOR MODEL
CORRECTIONS
DIELECTRIC MATERIALS
HELIUM
POLARIZABILITY
TEMPERATURE MEASUREMENT
TEMPERATURE RANGE 0273-0400 K
TEMPERATURE RANGE 0400-1000 K
THEORETICAL DATA
COMPOSITE MODELS
DATA
ELECTRICAL PROPERTIES
ELECTROMAGNETIC RADIATION
ELEMENTS
FLUIDS
GASES
INFORMATION
MATERIALS
MATHEMATICAL MODELS
NONMETALS
NUMERICAL DATA
PARTICLE MODELS
PHYSICAL PROPERTIES
QUARK MODEL
RADIATIONS
RARE GASES
TEMPERATURE RANGE