Cryogenic design and operation of liquid helium in an electron bubble chamber towards low energy solar neutrino detectors

Cryogenics ◽  
2007 ◽  
Vol 47 (2) ◽  
pp. 81-88 ◽  
Author(s):  
Y.L. Ju ◽  
J. Dodd ◽  
R. Galea ◽  
M. Leltchouk ◽  
W. Willis ◽  
...  
Keyword(s):  
Liquid Helium ◽  
Solar Neutrino ◽  
Bubble Chamber ◽  
Low Energy ◽  
Neutrino Detectors ◽  
Electron Bubble

(6Li,6He) measurements as an alternative calibration for solar neutrino detectors

1991 ◽  
Vol 44 (6) ◽  
pp. 2771-2775 ◽  
Author(s):  
E. Aschenauer ◽  
H. Dennert ◽  
W. Eyrich ◽  
A. Lehmann ◽  
M. Moosburger ◽  
...  
Keyword(s):  
Solar Neutrino ◽  
Neutrino Detectors

The Scattering of Low-Energy Helium Atoms at the Surface of Liquid Helium

1974 ◽  
pp. 518-521 ◽  
Author(s):  
J. Eckardt ◽  
D. O. Edwards ◽  
F. M. Gasparini ◽  
S. Y. Shen
Keyword(s):  
Liquid Helium ◽  
Low Energy ◽  
Helium Atoms

scholarly journals Solar Neutrinos Spectroscopy with Borexino Phase-II

2018 ◽  
Author(s):  
Lino Miramonti ◽  
M. Agostini ◽  
K. Altenmueller ◽  
S. Appel ◽  
V. Atroshchenko ◽  
...  
Keyword(s):  
Phase Ii ◽  
Solar Neutrino ◽  
Wide Band ◽  
Solar Neutrinos ◽  
Low Energy ◽  
Fusion Reactions ◽  
Oscillation Mechanism ◽  
Upper Limits ◽  
Flux Measurements ◽  
Neutrino Fluxes

Solar neutrinos have played a central role in the discovery of the neutrino oscillation mechanism. They still are proving to be a unique tool to help investigate the fusion reactions that power stars and further probe basic neutrino properties. The Borexino neutrino observatory has been operationally acquiring data at Laboratori Nazionali del Gran Sasso in Italy since 2007. Its main goal is the real-time study of low energy neutrinos (solar or originated elsewhere, such as geo-neutrinos). The latest analysis of experimental data, taken during the so-called Borexino Phase-II (2011-present), will be showcased in this talk - yielding new high-precision, simultaneous wide band flux measurements of the four main solar neutrino components belonging to the "pp" fusion chain (pp, pep, 7Be, 8B), as well as upper limits on the remaining two solar neutrino fluxes (CNO and hep).

scholarly journals Solar neutrino flare, megaton neutrino detectors and human space journey

2019 ◽  
Author(s):  
Daniele Fargion ◽  
Pietro Oliva ◽  
P. G. De Sanctis Lucentini ◽  
Silvia Pietroni ◽  
Fabio La Monaca ◽  
...  
Keyword(s):  
Solar Neutrino ◽  
Neutrino Detectors

STUDIES OF THE ENERGY SPECTRUM AND THE WAVE FUNCTION FOR LOW ENERGY EXCITED STATES IN LIQUID HELIUM II

2007 ◽  
Vol 21 (21) ◽  
pp. 1383-1390
Author(s):  
DE-HUA LIN ◽  
PING ZOU ◽  
ZHONG-WEI ZHANG ◽  
HONG-LEI WANG ◽  
JUN PAN ◽  
...  
Keyword(s):  
Experimental Data ◽  
Wave Function ◽  
Energy Spectrum ◽  
Liquid Helium ◽  
Excited States ◽  
Low Energy ◽  
Large Wave ◽  
Helium Ii ◽  
Wave Numbers ◽  
Specific Temperature

In this paper, we study the elementary excitations and energy spectrum proposed by L. D. Landau in liquid helium II. On the basis of the energy spectrum for the phonons and rotons, we put forward a uniform expression of energy spectrum in liquid helium II, which is limited in a specific temperature range. By using the wave function for low energy excited states proposed by R. P. Feynman or the modified one proposed by Feynman and Cohen, it can be found that the estimated energy spectrum is quite different from the experimental data, especially for the region with large wave numbers. By proposing an improved form for the wave function, we re-analyze the energy spectrum in liquid helium II, and our results show a better agreement with the experimental data.

Properties of an electron bubble approaching the surface of liquid helium

1994 ◽  
Vol 50 (17) ◽  
pp. 12820-12830 ◽  
Author(s):  
Francesco Ancilotto ◽  
Flavio Toigo
Keyword(s):  
Liquid Helium ◽  
Electron Bubble
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