THEME02-7-1017-96/2003

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02-7-1017-96/2003

Priority:
Status:

2
Extended

Proposal for a Real-Time Detector for Low-Energy Solar Neutrino
(Project BOREXINO)

Leader:

O. Zaimidoroga

Scientific Programme:

Direct solar neutrino flux measurements, precise Be-7 neutrino flux measurements.
Spectral measurements of solar high-energy neutrinos.
Study of neutrino elastic scattering on the electron with an artificial neutrino source of high intensity.
Search for solar neutrino vacuum oscillations.
Expected rate: 60 events/day (11 ev/d-background).

Expected main results in 2001:

Stainless steel sphere installation 12 meter in diameter;
The PMT assembling, laser testing and controlling;
Finishing the electronics in VME standard for data-taking;
Calibration and monitoring of PMT;
Nylon vessel installation;
Muon veto system installation;
Completion of the scintillating liquid purification system;
Liquid handling system installation and purity testing;
The CTF2 running for testing and controlling the scintillator for Borexino;
Finalization of the off-lines code for data processing;
Study of properties of deionized water and its interaction with materials.

List of Activities
	Activity or project	Spokespersons	Status
	Detector BOREXINO Underground Gran Sasso Laboratory	O. Zaimidoroga	Preparation

Participating Institutes and Organizations

Belgium	IRMM (Geel)
Czech Republic	Charles Univ. (Prague)
France	College de France (Paris)
Germany	MPIP (Munich), MPIK (Heidelberg)
Hungary	KFKI (Budapest)
Italy	Univ., INFN (Genoa, Milan, Pavia, Perugia)
Russia	SRC-RRC KI (Moscow), NPI (Gatchina)
USA	AT&T BELL LAB (Murray), MIT (Cambridge) PU (Princeton)

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