TY - JOUR
T1 - Prototype scintillator cell for an In-based solar neutrino detector
AU - Motta, D.
AU - Buck, C.
AU - Hartmann, F. X.
AU - Lasserre, Th
AU - Schönert, S.
AU - Schwan, U.
N1 - Funding Information:
We would like to thank the technical support of our mechanical and glassblowing workshops, especially F. Kleinbongardt, P. Mögel and E. Borger for their help in the realization of the light piping measurements and of the prototype set-up. The contribution of notable amounts of BPO fluor from our Russian colleagues, Dr. Leonid Bezrukov and group is acknowledged. We also thank all the members of the LENS collaboration for stimulating and helpful discussions. C. Buck thanks the Graduiertenkolleg, Ruprecht-Karls-Universität Heidelberg, for fellowship support.
PY - 2005/8/1
Y1 - 2005/8/1
N2 - We describe the work carried out at MPIK to design, model, build and characterize a prototype cell filled with a novel indium-loaded scintillator of interest for real-time low energy solar neutrino spectroscopy. First, light propagation in optical modules was studied with experiments and Monte Carlo simulations. Subsequently a 5cm×5cm×100cm prototype detector was set-up and the optical performances of several samples were measured. We first tested a benchmark PXE-based scintillator, which performed an attenuation length of ∼4.2m and a photo-electron yield of ∼730pe/MeV. Then we measured three In-loaded samples. At an In-loading of 44g/l, an energy resolution of ∼11.6% and a spatial resolution of ∼7cm were attained for 477keV recoil electrons. The long-range attenuation length in the cell was ∼1.3m and the estimated photo-electron yield ∼200pe/MeV. Light attenuation and relative light output of all tested samples could be reproduced reasonably well by MC. All optical properties of this system have remained stable over a period of >1year.
AB - We describe the work carried out at MPIK to design, model, build and characterize a prototype cell filled with a novel indium-loaded scintillator of interest for real-time low energy solar neutrino spectroscopy. First, light propagation in optical modules was studied with experiments and Monte Carlo simulations. Subsequently a 5cm×5cm×100cm prototype detector was set-up and the optical performances of several samples were measured. We first tested a benchmark PXE-based scintillator, which performed an attenuation length of ∼4.2m and a photo-electron yield of ∼730pe/MeV. Then we measured three In-loaded samples. At an In-loading of 44g/l, an energy resolution of ∼11.6% and a spatial resolution of ∼7cm were attained for 477keV recoil electrons. The long-range attenuation length in the cell was ∼1.3m and the estimated photo-electron yield ∼200pe/MeV. Light attenuation and relative light output of all tested samples could be reproduced reasonably well by MC. All optical properties of this system have remained stable over a period of >1year.
KW - Indium experiment
KW - Indium loaded scintillator
KW - Optical performances
KW - Prototype detector
KW - Solar neutrinos
UR - http://www.scopus.com/inward/record.url?scp=22344451970&partnerID=8YFLogxK
U2 - 10.1016/j.nima.2005.03.166
DO - 10.1016/j.nima.2005.03.166
M3 - Article
AN - SCOPUS:22344451970
SN - 0168-9002
VL - 547
SP - 368
EP - 388
JO - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
JF - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
IS - 2-3
ER -