Average energies, W, required to form an ion pair in liquefied rare gases

Journal Article · Tue Jan 01 04:00:00 EST 1974 · J. Phys., C (London), v. 7, no. 1, pp. 230-240

DOI:https://doi.org/10.1088/0022-3719/7/1/029· OSTI ID:4306918

Takahashi, T; Konno, S; Doke, T

The average energies, W, required to form an ion pair in liquid argon, krypton and xenon were determined by measuring steady conduction currents produced by a /sup 63/Ni BETA -source and are found to be 23.7 plus or minus 0.7, 20.5 plus or minus 1.5 and 16.4 plus or minus 1.4 eV, respectively, which are clearly lower than the corresponding W-values in the gaseous state. The W-value of liquid argon obtained by the present experiment is in good agreement with that obtained recently by the pulse method. Applying Platzman's theory, W-values of the liquid rare gases are explained by the band-gap energies or by the polarization energies which are assumed to be nearly equal to those of the solid rare gases. The extrapolation method, often used to evaluate W-values in the liquid state is also discussed. (auth)

• Research Organization: Inst. of Physical and Chemical Research, Wako, Japan
• NSA Number: NSA-29-025141
• OSTI ID: 4306918
• Journal Information: J. Phys., C (London), v. 7, no. 1, pp. 230-240, Journal Name: J. Phys., C (London), v. 7, no. 1, pp. 230-240; ISSN JPCPA
• Country of Publication: United Kingdom
• Language: English

Related Subjects

*ARGON-- ION PAIRS
*KRYPTON-- ION PAIRS
*XENON-- ION PAIRS
BAND THEORY
BETA PARTICLES
DIELECTRIC PROPERTIES
ELECTRIC CURRENTS
ENERGY DEPENDENCE
IONIZATION
LIQUIDS
N60200* --Physics (Atomic & Molecular)--Atomic & Molecular Properties
PAIR PRODUCTION
POLARIZATION