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Title: Results of the engineering run of the Coherent Neutrino Nucleus Interaction Experiment (CONNIE)

Abstract

The CONNIE detector prototype is operating at a distance of 30 m from the core of a 3.8 GW(th) nuclear reactor with the goal of establishing Charge-Coupled Devices (CCD) as a new technology for the detection of coherent elastic neutrino-nucleus scattering. We report on the results of the engineering run with an active mass of 4 g of silicon. The CCD array is described, and the performance observed during the first year is discussed. A compact passive shield was deployed around the detector, producing an order of magnitude reduction in the background rate. The remaining background observed during the run was stable, and dominated by internal contamination in the detector packaging materials. The in-situ calibration of the detector using X-ray lines from fluorescence demonstrates good stability of the readout system. The event rates with the reactor ON and OFF are compared, and no excess is observed coming from nuclear fission at the power plant. The upper limit for the neutrino event rate is set two orders of magnitude above the expectations for the standard model. The results demonstrate the cryogenic CCD-based detector can be remotely operated at the reactor site with stable noise below 2 e– RMS and stable backgroundmore » rates. In conclusion, the success of the engineering test provides a clear path for the upgraded 100 g detector to be deployed during 2016.« less

Authors:
 [1];  [2];  [3];  [4];  [4];  [1];  [1];  [5];  [6];  [1];  [6];  [4];  [7];  [4];  [8];  [1];  [4];  [9];  [10];  [4] more »;  [6];  [6];  [5];  [1];  [7];  [11];  [2];  [4];  [1];  [12] « less
+ Show Author Affiliations
  1. Univ. Nacional Autonoma de Mexico, Distrito Federal (Mexico)
  2. Centro Atómico Bariloche — Instituto Balseiro (Argentina)
  3. Univ. Federal do Rio de Janeiro, Rio de Janeiro (Brazil)
  4. Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
  5. Univ. Nacional de Asuncion (Paraguay)
  6. Centro Brasileiro de Pesquisas Fisicas, Rio de Janeiro (Brazil)
  7. Univ. Nacional del Sur, Bahia Blanca (Argentina)
  8. Univ. Federal do Rio de Janeiro, Rio de Janeiro (Brazil); Centro Brasileiro de Pesquisas Fisicas, Rio de Janeiro (Brazil)
  9. Univ. of Michigan, Ann Arbor, MI (United States)
  10. Univ. Zurich Physik Institut, Zurich (Switzerland)
  11. Univ. Nacional del Sur, Bahia Blanca (Argentina); Comision de Investigaciones Cientificas, La Plata (Argentina)
  12. Centro Brasileiro de Pesquisas Fisicas, Rio de Janeiro (Brazil); Pontificia Univ. Catolica, Rio de Janeiro (Brazil)
Publication Date:
Research Org.:
Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States)
Sponsoring Org.:
USDOE Office of Science (SC), High Energy Physics (HEP)
Contributing Org.:
CONNIE
OSTI Identifier:
1470330
Report Number(s):
arXiv:1604.01343; FERMILAB-PUB-16-695-AE-PPD
Journal ID: ISSN 1748-0221; 1442360
Grant/Contract Number:  
AC02-07CH11359
Resource Type:
Accepted Manuscript
Journal Name:
Journal of Instrumentation
Additional Journal Information:
Journal Volume: 11; Journal Issue: 07; Journal ID: ISSN 1748-0221
Publisher:
Institute of Physics (IOP)
Country of Publication:
United States
Language:
English
Subject:
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; Detector design and construction technologies and materials; Neutrino detectors; Solid state detectors

Citation Formats

Aguilar-Arevalo, A., Bertou, X., Bonifazi, C., Butner, M., Cancelo, G., Vázquez, A. Castañeda, Vergara, B. Cervantes, Chavez, C. R., Motta, H. Da, D'Olivo, J. C., Anjos, J. Dos, Estrada, J., Moroni, G. Fernandez, Ford, R., Foguel, A., Torres, K. P. Hernández, Izraelevitch, F., Kavner, A., Kilminster, B., Kuk, K., Jr., H. P. Lima, Makler, M., Molina, J., Moreno-Granados, G., Moro, J. M., Paolini, E. E., Haro, M. Sofo, Tiffenberg, J., Trillaud, F., and Wagner, S. Results of the engineering run of the Coherent Neutrino Nucleus Interaction Experiment (CONNIE). United States: N. p., 2016. Web. doi:10.1088/1748-0221/11/07/P07024.
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Aguilar-Arevalo, A., Bertou, X., Bonifazi, C., Butner, M., Cancelo, G., Vázquez, A. Castañeda, Vergara, B. Cervantes, Chavez, C. R., Motta, H. Da, D'Olivo, J. C., Anjos, J. Dos, Estrada, J., Moroni, G. Fernandez, Ford, R., Foguel, A., Torres, K. P. Hernández, Izraelevitch, F., Kavner, A., Kilminster, B., Kuk, K., Jr., H. P. Lima, Makler, M., Molina, J., Moreno-Granados, G., Moro, J. M., Paolini, E. E., Haro, M. Sofo, Tiffenberg, J., Trillaud, F., & Wagner, S. Results of the engineering run of the Coherent Neutrino Nucleus Interaction Experiment (CONNIE). United States. https://doi.org/10.1088/1748-0221/11/07/P07024
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Aguilar-Arevalo, A., Bertou, X., Bonifazi, C., Butner, M., Cancelo, G., Vázquez, A. Castañeda, Vergara, B. Cervantes, Chavez, C. R., Motta, H. Da, D'Olivo, J. C., Anjos, J. Dos, Estrada, J., Moroni, G. Fernandez, Ford, R., Foguel, A., Torres, K. P. Hernández, Izraelevitch, F., Kavner, A., Kilminster, B., Kuk, K., Jr., H. P. Lima, Makler, M., Molina, J., Moreno-Granados, G., Moro, J. M., Paolini, E. E., Haro, M. Sofo, Tiffenberg, J., Trillaud, F., and Wagner, S. Fri . "Results of the engineering run of the Coherent Neutrino Nucleus Interaction Experiment (CONNIE)". United States. https://doi.org/10.1088/1748-0221/11/07/P07024. https://www.osti.gov/servlets/purl/1470330.
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@article{osti_1470330,
title = {Results of the engineering run of the Coherent Neutrino Nucleus Interaction Experiment (CONNIE)},
author = {Aguilar-Arevalo, A. and Bertou, X. and Bonifazi, C. and Butner, M. and Cancelo, G. and Vázquez, A. Castañeda and Vergara, B. Cervantes and Chavez, C. R. and Motta, H. Da and D'Olivo, J. C. and Anjos, J. Dos and Estrada, J. and Moroni, G. Fernandez and Ford, R. and Foguel, A. and Torres, K. P. Hernández and Izraelevitch, F. and Kavner, A. and Kilminster, B. and Kuk, K. and Jr., H. P. Lima and Makler, M. and Molina, J. and Moreno-Granados, G. and Moro, J. M. and Paolini, E. E. and Haro, M. Sofo and Tiffenberg, J. and Trillaud, F. and Wagner, S.},
abstractNote = {The CONNIE detector prototype is operating at a distance of 30 m from the core of a 3.8 GW(th) nuclear reactor with the goal of establishing Charge-Coupled Devices (CCD) as a new technology for the detection of coherent elastic neutrino-nucleus scattering. We report on the results of the engineering run with an active mass of 4 g of silicon. The CCD array is described, and the performance observed during the first year is discussed. A compact passive shield was deployed around the detector, producing an order of magnitude reduction in the background rate. The remaining background observed during the run was stable, and dominated by internal contamination in the detector packaging materials. The in-situ calibration of the detector using X-ray lines from fluorescence demonstrates good stability of the readout system. The event rates with the reactor ON and OFF are compared, and no excess is observed coming from nuclear fission at the power plant. The upper limit for the neutrino event rate is set two orders of magnitude above the expectations for the standard model. The results demonstrate the cryogenic CCD-based detector can be remotely operated at the reactor site with stable noise below 2 e– RMS and stable background rates. In conclusion, the success of the engineering test provides a clear path for the upgraded 100 g detector to be deployed during 2016.},
doi = {10.1088/1748-0221/11/07/P07024},
journal = {Journal of Instrumentation},
number = 07,
volume = 11,
place = {United States},
year = {Fri Jul 29 00:00:00 EDT 2016},
month = {Fri Jul 29 00:00:00 EDT 2016}
}
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https://doi.org/10.1088/1748-0221/11/07/P07024
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