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

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).

• Tuning of electronics in full scale in VME standard.
  
  
• Creation of the 3-storeyed "clean" rooms near the detector for personal.
  
  
• Tuning of the PMT's, calibration and testing with a radiosource.
  
  
• Tuning and calibration of the muon veto system.
  
  
• Assembling of internal nylon bags, control of their quality and mechanical stability.
  
  
• Control of the quality and stability of purification of the scintillator.
  
  
• Filling of the inner nylon vessel with deionized water by using a plant of water production, control of its parameters and quality.
  
  
• Control and permanent monitoring of radioimpurity in the detector.
  
  
• Filling of the buffer volume with pseudocumene and control of the radon diffusion inside the detector.
  
  
• Confimation of measuring the quality of the scintillator with the CTF2 detector.
  
  
• Overall calibration of the system with lasers and radioactive sources.
  
  
• Start-up of data taking by means of the detector filled with water.

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