Astronomy and Astrophysics – Astrophysics
Scientific paper
2007-04-09
Phys. Rev. B 76, 014115 (2007)
Astronomy and Astrophysics
Astrophysics
Scientific paper
10.1103/PhysRevB.76.014115
A strong anti-correlation between ionization and scintillation signals produced by MeV gamma-rays in liquid xenon has been measured and used to improve the energy resolution by combining the two signals. The improvement is explained by reduced electron-ion recombination fluctuations of the combined signal compared to fluctuations of the individual signals. Simultaneous measurements of ionization and scintillation signals were carried out with Cs-137, Na-22 and Co-60 gamma rays, as a function of electric field in the liquid. A resolution of 1.7%(sigma) at 662 keV was measured at 1 kV/cm, significantly better than the resolution from either scintillation or ionization alone. A detailed analysis indicates that further improvement to less than 1%(sigma) is possible with higher light collection efficiency and lower electronic noise.
Aprile Elena
Giboni Karl Ludwig
Majewski P. P.
Ni Kaixuan
Yamashita Mamoru
No associations
LandOfFree
Observation of Anti-correlation between Scintillation and Ionization for MeV Gamma-Rays in Liquid Xenon does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Observation of Anti-correlation between Scintillation and Ionization for MeV Gamma-Rays in Liquid Xenon, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Observation of Anti-correlation between Scintillation and Ionization for MeV Gamma-Rays in Liquid Xenon will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-387610