Abstract
The performance of a superheated alkali vapor cell, with a geometry suitable for x-ray photoionization experiments, is described. An internal heater was used to superheat sodium vapor in a split-wick heat pipe. At a Na pressure of 20 Torr, the transmission through the cell in the region of theC−X molecular band of Na2 increased to 50% from the 5% observed when the cell was operated in a conventional heat-pipe mode. In the presence of a Na atom density of 2×1017 cm−3, the average molecule density over the length of the cell was measured to be 2.5×1015 cm−3. In the hot central region of the superheated cell, the molecule density was predicted to have been reduced by a factor of 50 to 3×1014 cm−3.
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J.C. Wang, R.G. Caro, S.E. Harris: Phys. Rev. Lett.51, 767 (1983)
R.G. Caro, J.C. Wang, R.W. Falcone, J.F. Young, S.E. Harris: Appl. Phys. Lett.42, 9 (1983)
R.G. Caro, J.C. Wang, J.F. Young, S.E. Harris: Phys. Rev. A (to be published)
S.A. Mani, H.A. Hyman, J.D. Daugherty: J. Appl. Phys.47, 3099 (1976)
S.E. Harris: Opt. Lett.5, 1 (1980)
J.E. Rothenberg, S.E. Harris: IEEE J. QE-17, 418 (1981)
D.R. Stull, G.C. Sinke:Thermodynamic Properties of the Elements, Adv. Chem. Ser. No. 18 (American Chemical Society, Washington, DC 1956) pp. 188–189
R. Wyatt, D. Cotter: Appl. Phys.21, 199 (1980)
C.R. Vidal, M.M. Hessel: J. Appl. Phys.43, 2776 (1972)
A.L. Harris, J.K. Brown, M. Berg, C.B. Harris: Opt. Lett.9, 47 (1984)
R.W.B. Pearse, A.G. Gaydon:The Identification of Molecular Spectra, 4th edn. (Chapman and Hall, London 1976) pp. 247–248
R.D. Hudson: J. Chem. Phys43, 1790 (1965)