Experience of gas purification and radon control in BOREXINO

  title={Experience of gas purification and radon control in BOREXINO},
  author={Grzegorz Zuzel},
  • G. Zuzel
  • Published 2018
  • Environmental Science
The BOREXINO detector, located in the Gran Sasso National Laboratory in Italy, has been designed for real-time spectroscopy of low energy solar neutrinos. Extremely low background rates required to successfully accomplish this goal triggered a very extensive R&D program focused on developments of novel background reduction and assay techniques. This has been achieved and, in many cases, these techniques are still the most sensitive world-wide. Extremely low background of the BOREXINO detector… Expand
1 Citations
Evaluation of radon adsorption efficiency values in xenon with activated carbon fibers
The radioactive noble gas radon-222 ($\mathrm{^{222}Rn}$, or Rn) produced in the uranium series is a crucial background source in many underground experiments. We have estimated the adsorptionExpand


The Borexino detector at the Laboratori Nazionali del Gran Sasso
Abstract Borexino, a large volume detector for low energy neutrino spectroscopy, is currently running underground at the Laboratori Nazionali del Gran Sasso, Italy. The main goal of the experiment isExpand
Test of Electric Charge Conservation with Borexino.
A new limit on the stability of the electron for decay into a neutrino and a single monoenergetic photon was obtained, and this new bound, τ≥6.6×10^{28}  yr at 90% C.L. Expand
222Rn emanation measurements at extremely low activities
  • Rau, Heusser
  • Physics, Medicine
  • Applied radiation and isotopes : including data, instrumentation and methods for use in agriculture, industry and medicine
  • 2000
For the solar neutrino experiment Borexino, a system has been set up to measure emanation of 222Rn in samples of up to 80 litres volume and the low blank activity together with a highly sensitive detection method for the extracted Rn leads to a sensitivity level in the range 70-100 microBq 222 Rn. Expand
Ultra-traces of 226Ra in nylon used in the BOREXINO solar neutrino experiment
Abstract Borexino is a large-scale liquid scintillator detector for solar neutrinos with a low expected event rate, therefore requiring an extremely low radioactive background. In this paper weExpand
Analysis of radioactive trace impurities with μBq-sensitivity in Borexino
BOREXINO has set new standards in the field of ultra-low background experiments. Such a success was only possible by a strict quality control program during the construction phase of the experiment.Expand
Final results of Borexino Phase-I on low-energy solar neutrino spectroscopy
Borexino has been running since May 2007 at the Laboratori Nazionali del Gran Sasso laboratory in Italy with the primary goal of detecting solar neutrinos. The detector, a large, unsegmented liquidExpand
The water purification system for the low background counting test facility of the Borexino experiment at Gran Sasso
The Borexino experiment, for the study of solar neutrino physics, requires radiopurity at the level of 5 × 10−16 g/g 238U equivalent (or 6 × 10−9 Bq/kg) on a detector mass of many tons ofExpand
222Rn detection at the microBq/m3 range in nitrogen gas and a new Rn purification technique for liquid nitrogen
For the Borexino solar neutrino experiment a concentration line for 222Rn from a large volume of nitrogen gas has been constructed based on cryo-adsorption in a charcoal trap of very low intrinsic 226Ra contamination, allowing the detection of Rn at concentrations below the microBq/m3 level in gaseous nitrogen. Expand
Muon and cosmogenic neutron detection in Borexino
Borexino, a liquid scintillator detector at LNGS, is designed for the detection of neutrinos and antineutrinos from the Sun, supernovae, nuclear reactors, and the Earth. The feeble nature of theseExpand
Cosmogenic Backgrounds in Borexino at 3800 m water-equivalent depth
The solar neutrino experiment Borexino, which is located in the Gran Sasso underground laboratories, is in a unique position to study muon-induced backgrounds in an organic liquid scintillator. InExpand