Precision Measurements of Time Characteristics of ETL9351 Photomultipliers O.Ju.Smirnov, P.Lombardi, G.Ranucci Instruments and Experimental Techniques Volume 47, issue 1, pp. 69–80, January 2004 doi:10.1023/B:INET.0000017255.60520.e0 [local copy] Abstract The measured characteristics of 2200 photomultiplier tubes (PMTs) for the future Borexino experiment
Energy and Spatial Resolution of a Large-Volume Liquid-Scintillator Detector
Energy and Spatial Resolution of a Large-Volume Liquid-Scintillator Detector O. Ju. Smirnov Instruments and Experimental Techniques Vol.46 No.2, 327–344 (2003) doi:10.1023/A:1024458203966 [local copy] Abstract The energy and spatial resolution of a large-volume liquid-scintillator detector has been investigated. The relations have
Search for solar pp neutrinos with an upgrade of CTF detector
The possibility of using ultrapure liquid organic scintillator as a low-energy solar neutrino detector is discussed. The detector can be build at the LNGS underground laboratory as an upgrade of the CTF detector using already developed technologies.
Ultra-traces of 226Ra in nylon used in the Borexino solar neutrino experiment
Method to measure the surface and bulk activities of 226Ra in thin nylon foils to be used in Borexino, based on high-sensitivity 222Rn emanation detection, taking advantage of strongly enhanced nylon permeability in the presence of water.
A multiplexed optical-fiber system for the PMT calibration of the Borexino experiment
We illustrate the PMT calibration system design for the Borexino experiment and the results of various feasibility tests performed.
Search for neutrino radiative decay with a prototype Borexino detector
Borexino prototype (CTF) results were used to obtain bounds on the lifetime of radiative neutrino decay. New lower limit is more than an order of magnitude stronger than the previous ones.
Effects of absorption and reemission of photons in large scintillation counters on the quantities measured by an observing phototubes
Effects of absorption and reemission of photons in large scintillation counters on the quantities measured by an observing phototubes.
Setting of the Predefined Multiplier Gain of a Photomultiplier
Method for setting the predefined gain of a photomultiplier with high precision and minimal operator participation, used for Borexino.
Methods for precise photoelectron counting with photomultipliers
Measurements has been performed on a THORN EMI 9351 phototube in order to investigate its response to a low light intensity. Precise procedures to determine the intensity of the incident photon flux have been developed and compared. The data show that the various approaches give consistent and reliable results, thus allowing the precise calibration of the device for applications of photon counting.
Radon diffusion through polymer membranes used in the solar neutrino experiment Borexino
Radon diffusion through polymer membranes used in the solar neutrino experiment Borexino M. Wójcik, W. Wlazlo, G. Zuzel and G. Heusser. NIM-A Volume 449, Issues 1–2, 2000, Pages 158-171. ISSN 0168-9002 doi:10.1016/S0168-9002(99)01450-3 [local copy] Abstract We have measured the radon
An analytical approach to the description of absorption and reemission effects in large scintillation counters
An analytical approach to the description of absorption and reemission effects in large scintillation counters Gioacchino Ranucci Nuclear Instruments and Methods – A Volume 440, Issue 2, 1 February 2000, Pages 388-396 – ISSN 0168-9002 doi:10.1016/S0168-9002(99)00927-4 [local copy] Abstract It
A Scintillator Purification System for a Large Scale Solar Neutrino Experiment
A Scintillator Purification System for a Large Scale Solar Neutrino Experiment J. Benziger, M. Johnson, F. P. Calaprice, M. Chen, N. Darnton, F. Loeser and R.B. Vogelaar. Nuclear Instruments and Methods – A Volume 417, Issues 2–3, 11 November 1998,
A Rn-222 Source for Low-background Liquid Scintillation Detectors
A Rn-222 Source for Low-background Liquid Scintillation Detectors M. Johnson, J. Benziger, C. Stoia, F. P. Calaprice, M. Chen, N. Darnton, F. Loeser and R.B. Vogelaar. Nuclear Instruments and Methods – A Volume 414, Issues 2–3, 11 September 1998, Pages
Pulse shape discrimination of liquid scintillators
Results of different techniques applied to characterize experimentally the pulse shape discrimination capability of liquid scintillators.
A neural network approach to spatial reconstruction in the CTF detector
A neural network approach to spatial reconstruction in the CTF detector G.Alimonti and S.Magni. Nuclear Instruments and Methods – A Volume 411, Issues 2–3, 11 July 1998, Pages 467-474 doi:10.1016/S0168-9002(98)00295-2 [local copy] Abstract Artificial neural networks may in some cases
Measuring the Global Radioactivity in the Earth by Multidetector Antineutrino Spectroscopy
Bearing directly on the interior of the whole Earth, such data can test, for the first time, the conceptual foundations of the geophysical structure, dynamics, and evolution of the present Earth.
The water purification system for the low background Counting Test Facility of the Borexino experiment at Gran Sasso
The water purification system for the low background counting test facility of the Borexino experiment at Gran Sasso M. Balata, L. Cadonati, M. Laubenstein, G. Heusser, M.G. Giammarchi, R. Scardaoni, V. Torri, G. Cecchet, A. de Bari, A. Perotti Nuclear
Solar Neutrinos — From Puzzle to Paradox
Solar Neutrinos — From Puzzle to Paradox R. S. Raghavan SCIENCE Vol. 267, Issue 5194, pp. 45-51 (Jan 6, 1995) doi:10.1126/science.267.5194.45 Abstract The solar neutrino puzzle is deepening into a paradox that refutes the basic logic of the reaction chain