skip to main content

DOE PAGESDOE PAGES

Title: Measurement of α -particle quenching in LAB based scintillator in independent small-scale experiments

The α -particle light response of liquid scintillators based on linear alkylbenzene (LAB) has been measured with three different experimental approaches. In the first approach, α -particles were produced in the scintillator via 12C(n,α) 9 Be reactions. In the second approach, the scintillator was loaded with 2 % of natSm providing an α-emitter, 147Sm, as an internal source. In the third approach, a scintillator flask was deployed into the water-filled SNO+ detector and the radioactive contaminants 222Rn, 218Po and 214Po provided the α -particle signal. The behavior of the observed α -particle light outputs are in agreement with each case successfully described by Birks’ law. The resulting Birks parameter kB ranges from (0.0066±0.0016) to (0.0076±0.0003) cm/MeV. In the first approach, the α -particle light response was measured simultaneously with the light response of recoil protons produced via neutron–proton elastic scattering. This enabled a first time a direct comparison of kB describing the proton and the α -particle response of LAB based scintillator. The observed kB values describing the two light response functions deviate by more than 5σ . The presented results are valuable for all current and future detectors, using LAB based scintillator as target, since they depend on anmore » accurate knowledge of the scintillator response to different particles.« less
Authors:
 [1] ;  [2] ;  [3] ;  [4] ;  [5] ;  [6] ;  [7] ;  [2] ;  [8] ;  [9] ;  [10] ;  [11] ;  [2] ;  [3] ;  [12]
  1. Technical Univ. Dresden (Germany); Univ. of British Columbia, Vancouver, BC (Canada)
  2. Queen's Univ., Kingston, ON (Canada)
  3. Brookhaven National Lab. (BNL), Upton, NY (United States)
  4. Helmholtz-Zentrum Dresden-Rossendorf (Germany)
  5. Helmholtz-Zentrum Dresden-Rossendorf (Germany); Technical Univ. Dresden (Germany)
  6. Queen's Univ., Kingston, ON (Canada); Laurentian Univ., Sudbury, ON (Canada)
  7. Technical Univ. Dresden (Germany); Karlsruhe Inst. of Technology (KIT) (Germany)
  8. Physikalisch-Technische Bundesanstalt, Braunschweig (Germany)
  9. Queen's Univ., Kingston, ON (Canada); Lancaster Univ. (United Kingdom)
  10. Univ. of Washington, Seattle, WA (United States)
  11. Univ. of London (United Kingdom)
  12. Technical Univ. Dresden (Germany)
Publication Date:
Report Number(s):
BNL-112083-2016-JAAM
Journal ID: ISSN 1434-6044
Grant/Contract Number:
SC0012704
Type:
Published Article
Journal Name:
European Physical Journal. C, Particles and Fields
Additional Journal Information:
Journal Volume: 76; Journal Issue: 3; Journal ID: ISSN 1434-6044
Publisher:
Springer
Research Org:
Brookhaven National Laboratory (BNL), Upton, NY (United States)
Sponsoring Org:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY
OSTI Identifier:
1251763
Alternate Identifier(s):
OSTI ID: 1439848

von Krosigk, B., Chen, M., Hans, S., Junghans, A. R., Kogler, T., Kraus, C., Kuckert, L., Liu, X., Nolte, R., O?Keeffe, H. M., Tseung, H. Wan Chan, Wilson, J. R., Wright, A., Yeh, M., and Zuber, K.. Measurement of α -particle quenching in LAB based scintillator in independent small-scale experiments. United States: N. p., Web. doi:10.1140/epjc/s10052-016-3959-2.
von Krosigk, B., Chen, M., Hans, S., Junghans, A. R., Kogler, T., Kraus, C., Kuckert, L., Liu, X., Nolte, R., O?Keeffe, H. M., Tseung, H. Wan Chan, Wilson, J. R., Wright, A., Yeh, M., & Zuber, K.. Measurement of α -particle quenching in LAB based scintillator in independent small-scale experiments. United States. doi:10.1140/epjc/s10052-016-3959-2.
von Krosigk, B., Chen, M., Hans, S., Junghans, A. R., Kogler, T., Kraus, C., Kuckert, L., Liu, X., Nolte, R., O?Keeffe, H. M., Tseung, H. Wan Chan, Wilson, J. R., Wright, A., Yeh, M., and Zuber, K.. 2016. "Measurement of α -particle quenching in LAB based scintillator in independent small-scale experiments". United States. doi:10.1140/epjc/s10052-016-3959-2.
@article{osti_1251763,
title = {Measurement of α -particle quenching in LAB based scintillator in independent small-scale experiments},
author = {von Krosigk, B. and Chen, M. and Hans, S. and Junghans, A. R. and Kogler, T. and Kraus, C. and Kuckert, L. and Liu, X. and Nolte, R. and O?Keeffe, H. M. and Tseung, H. Wan Chan and Wilson, J. R. and Wright, A. and Yeh, M. and Zuber, K.},
abstractNote = {The α -particle light response of liquid scintillators based on linear alkylbenzene (LAB) has been measured with three different experimental approaches. In the first approach, α -particles were produced in the scintillator via 12C(n,α)9 Be reactions. In the second approach, the scintillator was loaded with 2 % of natSm providing an α-emitter, 147Sm, as an internal source. In the third approach, a scintillator flask was deployed into the water-filled SNO+ detector and the radioactive contaminants 222Rn, 218Po and 214Po provided the α -particle signal. The behavior of the observed α -particle light outputs are in agreement with each case successfully described by Birks’ law. The resulting Birks parameter kB ranges from (0.0066±0.0016) to (0.0076±0.0003) cm/MeV. In the first approach, the α -particle light response was measured simultaneously with the light response of recoil protons produced via neutron–proton elastic scattering. This enabled a first time a direct comparison of kB describing the proton and the α -particle response of LAB based scintillator. The observed kB values describing the two light response functions deviate by more than 5σ . The presented results are valuable for all current and future detectors, using LAB based scintillator as target, since they depend on an accurate knowledge of the scintillator response to different particles.},
doi = {10.1140/epjc/s10052-016-3959-2},
journal = {European Physical Journal. C, Particles and Fields},
number = 3,
volume = 76,
place = {United States},
year = {2016},
month = {2}
}