Astronomy and Astrophysics – Astrophysics – Instrumentation and Methods for Astrophysics
Scientific paper
2009-09-30
Astronomy and Astrophysics
Astrophysics
Instrumentation and Methods for Astrophysics
To be published in the proceedings of DPF-2009, Detroit, MI, July 2009, eConf C090726
Scientific paper
Modification of large water Cherenkov detectors by addition of gadolinium has been proposed. The large cross section for neutron capture on Gd will greatly improve the sensitivity to antielectron neutrinos from supernovae and reactors. A five-year project to build and develop a prototype detector based on Super-Kamiokande (SK) has started. We are performing various studies, including a material soak test in Gd solution, light attenuation length measurements, purification system development, and neutron tagging efficiency measurements using SK data and a Geant4-based simulation. We present an overview of the project and the recent R&D results.
for the Super-Kamiokande Collaboration
Kibayashi Atsuko
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