scholarly journals MeV-scale performance of water-based and pure liquid scintillator detectors

2021 ◽  
Vol 103 (5) ◽  
Author(s):  
B. J. Land ◽  
Z. Bagdasarian ◽  
J. Caravaca ◽  
M. Smiley ◽  
M. Yeh ◽  
...  
Keyword(s):  
Liquid Scintillator ◽  
Pure Liquid ◽  
Water Based ◽  
Scintillator Detectors

scholarly journals Characterization of water-based liquid scintillator for Cherenkov and scintillation separation

2020 ◽  
Vol 80 (9) ◽  
Author(s):  
J. Caravaca ◽  
B. J. Land ◽  
M. Yeh ◽  
G. D. Orebi Gann
Keyword(s):  
Large Scale ◽  
Liquid Scintillator ◽  
Light Yield ◽  
Time Profile ◽  
Pure Liquid ◽  
Scintillation Light ◽  
Linear Alkylbenzene ◽  
Water Based ◽  
Measured Time ◽  
Simple Extrapolation

AbstractThis paper presents measurements of the scintillation light yield and time profile for a number of concentrations of water-based liquid scintillator, formulated from linear alkylbenzene (LAB) and 2,5-diphenyloxazole (PPO). We find that the scintillation light yield is linear with the concentration of liquid scintillator in water between 1 and 10% with a slope of $$127.9\pm 17.0$$ 127.9 ± 17.0 ph/MeV/concentration and an intercept value of $$108.3\pm 51.0$$ 108.3 ± 51.0 ph/MeV, the latter being illustrative of non-linearities with concentration at values less than 1%. This is larger than expected from a simple extrapolation of the pure liquid scintillator light yield. The measured time profiles are consistently faster than that of pure liquid scintillator, with rise times less than 250 ps and prompt decay constants in the range of 2.1–2.85 ns. Additionally, the separation between Cherenkov and scintillation light is quantified using cosmic muons in the CHESS experiment for each formulation, demonstrating an improvement in separation at the centimeter scale. Finally, we briefly discuss the prospects for large-scale detectors.

scholarly journals Performance of Water-Based Liquid Scintillator: An Independent Analysis

2014 ◽  
Vol 2014 ◽  
pp. 1-8 ◽  
Author(s):  
D. Beznosko ◽  
A. Batyrkhanov ◽  
A. Duspayev ◽  
A. Iakovlev ◽  
M. Yessenov
Keyword(s):  
Liquid Scintillator ◽  
National Laboratory ◽  
Light Yield ◽  
Brookhaven National Laboratory ◽  
Pure Liquid ◽  
Scintillation Light ◽  
Detection Techniques ◽  
Measurement Analysis ◽  
Water Based ◽  
Large Water

The water-based liquid scintillator (WbLS) is a new material currently under development. It is based on the idea of dissolving the organic scintillator in water using special surfactants. This material strives to achieve the novel detection techniques by combining the Cerenkov rings and scintillation light, as well as the total cost reduction compared to pure liquid scintillator (LS). The independent light yield measurement analysis for the light yield measurements using three different proton beam energies (210 MeV, 475 MeV, and 2000 MeV) for water, two different WbLS formulations (0.4% and 0.99%), and pure LS conducted at Brookhaven National Laboratory, USA, is presented. The results show that a goal of ~100 optical photons/MeV, indicated by the simulation to be an optimal light yield for observing both the Cerenkov ring and the scintillation light from the proton decay in a large water detector, has been achieved.

scholarly journals Neutrinos: Detection and Interpretation

1989 ◽  
Vol 8 ◽  
pp. 229-237
Author(s):  
L.N. Alexeyeva
Keyword(s):  
Liquid Scintillator ◽  
Theoretical Description ◽  
Time Profile ◽  
Individual Characteristics ◽  
Angular Distributions ◽  
Supernova 1987A ◽  
The Galaxy ◽  
Supernova Explosions ◽  
Scintillator Detectors ◽  
Water Cherenkov Detectors

AbstractObservations of the neutrino burst from Supernova 1987A by water Cherenkov detectors (KAMIOKANDE II, IMB) and liquid scintillator detectors (Baksan, Mont Blanc) are reviewed. It is shown that neutrino signal from SN 1987A was observed. There are 24 events in three detectors (KAMIOKANDE II, IMB, Baksan) recorded at 7:35 UT. The average properties of the signal (effective neutrino temperature, total energy of neutrino emission, burst duration) are consistent with the general theoretical description of supernova explosions. Special attention is concentrated on individual characteristics of the signals detected and the available discrepancies of the model estimates. Time profile of the neutrino burst, estimates of effective neutrino temperatures and total neutrino energies, angular distributions of the events are discussed. These properties point out, probably, a more compound picture of the phenomenon. The more detail analysis of the experimental data is needed and all possibilities must be at least considered. Based upon the Baksan observations, an upper limit of 0.35 core collapse in the Galaxy per year (90% C.L.) is shown.

scholarly journals Time response of water-based liquid scintillator from X-ray excitation

2020 ◽  
Vol 1 (1) ◽  
pp. 71-76 ◽  
Author(s):  
Drew R. Onken ◽  
Federico Moretti ◽  
Javier Caravaca ◽  
Minfang Yeh ◽  
Gabriel D. Orebi Gann ◽  
...  
Keyword(s):  
Decay Time ◽  
Liquid Scintillator ◽  
Luminescence Decay ◽  
Time Response ◽  
Luminescence Decay Time ◽  
X Ray ◽  
Water Based ◽  
The Impact

The impact of PPO concentration in LAB micelles on the luminescence decay time is determined.

scholarly journals Measurement of radiation damage of water-based liquid scintillator and liquid scintillator

2015 ◽  
Vol 10 (10) ◽  
pp. P10027-P10027 ◽  
Author(s):  
L.J. Bignell ◽  
M.V. Diwan ◽  
S. Hans ◽  
D.E. Jaffe ◽  
R. Rosero ◽  
...  
Keyword(s):  
Radiation Damage ◽  
Liquid Scintillator ◽  
Water Based
Sign in / Sign up

Export Citation Format

Share Document