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Correlated fluctuations between luminescence and ionization in liquid xenon
Author(s) -
E. Conti,
R. DeVoe,
G. Gratta,
T. Koffas,
S. J. Waldman,
J. Wodin,
D. Akimov,
G. R. Bower,
M. Breidenbach,
R. Conley,
M. Danilov,
Z. Djurcic,
A. Dolgolenko,
C. Hall,
A. Odian,
A. Piepke,
C.Y. Prescott,
P.C. Rowson,
K. Skarpaas,
J-L. Vuilleumier,
K. Wamba,
O. Zeldovich
Publication year - 2003
Publication title -
physical review. b, condensed matter
Language(s) - English
Resource type - Journals
eISSN - 1095-3795
pISSN - 0163-1829
DOI - 10.1103/physrevb.68.054201
Subject(s) - xenon , ionization , luminescence , atomic physics , scintillation , ion , physics , electron , nuclear physics , optics , detector , quantum mechanics
The ionization of liquefied noble gases by radiation is known to beaccompanied by fluctuations much larger than predicted by Poisson statistics.We have studied the fluctuations of both scintillation and ionization in liquidxenon and have measured, for the first time, a strong anti-correlation betweenthe two at a microscopic level, with coefficient $ -0.80 < \rho_{ep} < -0.60 $.This provides direct experimental evidence that electron-ion recombination ispartially responsible for the anomalously large fluctuations and at the sametime allows substantial improvement of calorimetric energy resolution.Comment: 6 pages, 7 figure

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