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Low energy tracking and particles identification in the MUNU Time Projection Chamber at 1 bar: possible application in low energy solar neutrino spectroscopy

Z Daraktchieva1, C Amsler2, M Avenier3, C Broggini4, J Busto1, C Cerna4, F Juget1, D-H Koang3, D Lebrun3, O Link2, G Puglierin4, A Stutz3, A Tadsen4, J-L Vuilleumier1, J-M Vuilleumier1 and V Zacek5 (The MUNU Collaboration)

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In this paper we present the results from the measurements made with the MUNU Time Projection Chamber (TPC) at 1 bar pressure of CF4 in the energy region below 1 MeV. Electron events down to 80 keV are successfully measured. The electron energy and direction are reconstructed for every contained single electron above 200 keV. As a test the 137Cs photopeak is reconstructed by measuring both the energy and direction of the Compton electrons in the TPC.


PACS

29.40.Gx Tracking and position-sensitive detectors

96.50.sb Composition, energy spectra and interactions

96.60.Vg Particle emission, solar wind

96.50.Vg Energetic particles

95.55.Vj Neutrino, muon, pion, and other elementary particle detectors; cosmic ray detectors

29.40.Cs Gas-filled counters: ionization chambers, proportional, and avalanche counters

Subjects

Accelerators, beams and electromagnetism

Nuclear physics

Instrumentation and measurement

Particle physics and field theory

Astrophysics and astroparticles

Dates

Issue 12 (December 2008)

Received 9 May 2008

Published 14 October 2008



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