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Measurement of the two-photon absorption cross-section of liquid argon with a time projection chamber
I. Badhrees, A. Ereditato, I. Kreslo +9
This paper reports on laser-induced multiphoton ionization at 266 nm of liquid argon in a time projection chamber (LAr TPC) detector. The electron signal produced by the laser beam…
30 kV coaxial vacuum-tight feedthrough for operation at cryogenic temperatures
I. Kreslo, I. Badhrees, S. Delaquis +6
In this paper we describe the technology of building a vacuum-tight high voltage feedthrough which is able to operate at voltages up to 30 kV. The feedthrough has a coaxial structu…
Ionization signals from electrons and alpha-particles in mixtures of liquid Argon and Nitrogen - perspectives on protons for Gamma Resonant Nuclear Absorption applications
M. Zeller, I. Badhrees, S. Delaquis +6
In this paper we report on a detailed study of ionization signals produced by Compton electrons and alpha-particles in a Time Projection Chamber (TPC) flled with different mixtures…
First results on proton radiography with nuclear emulsion detectors
S. Braccini, A. Ereditato, I. Kreslo +6
We propose an innovative method for proton radiography based on nuclear emulsion film detectors, a technique in which images are obtained by measuring the position and the residual…
Measurement of the atmospheric muon charge ratio with the OPERA detector
OPERA Collaboration, N. Agafonova, A. Anokhina +182
The OPERA detector at the Gran Sasso underground laboratory (LNGS) was used to measure the atmospheric muon charge ratio in the TeV energy region. We analyzed 403069 atmospheric mu…
Nuclear Emulsion Film Detectors for Proton Radiography: Design and Test of the First Prototype
S. Braccini, A. Ereditato, I. Kreslo +4
Proton therapy is nowadays becoming a wide spread clinical practice in cancer therapy and sophisticated treatment planning systems are routinely used to exploit at best the ballist…