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First results of the NEXT-100 detector using $$^{83m}$$Kr decays

Journal Article · · No journal information
OSTI ID:3006313
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  1. Donostia Intl. Phys. Ctr., San Sebastian; Valencia U., IFIC
  2. Santiago de Compostela U., IGFAE
  3. Donostia Intl. Phys. Ctr., San Sebastian
  4. Valencia U., IFIC; Santiago de Compostela U., IGFAE
  5. Manchester U.
  6. Donostia Intl. Phys. Ctr., San Sebastian; IKERBASQUE, Bilbao
  7. Argonne (main); NVIDIA, Santa Clara
  8. Valencia, Polytechnic U.
  9. Ben Gurion U. of Negev
  10. PNL, Richland
  11. Basque U., San Sebastian
  12. Valencia U., IFIC; Valencia U.
  13. U. Aveiro (main)
  14. Argonne (main)
  15. Donostia Intl. Phys. Ctr., San Sebastian; Basque U., Bilbao
  16. LIP, Coimbra
  17. Texas U., Arlington
  18. Ben Gurion U. of Negev; Weizmann Inst.
  19. Coimbra U.
  20. Texas U., Arlington (main)
  21. Iowa State U.
  22. Hebrew U.
  23. Donostia Intl. Phys. Ctr., San Sebastian; Basque U., San Sebastian
  24. Fermilab
  25. LSC, Canfranc
  26. Basque U., San Sebastian; IKERBASQUE, Bilbao
  27. CFM, San Sebastian; Basque U., Bilbao
  28. Donostia Intl. Phys. Ctr., San Sebastian; UNC, Chapel Hill
  29. Valencia U., IFIC; Los Alamos; Valencia U.
  30. Donostia Intl. Phys. Ctr., San Sebastian; Girona U.
+ Show Author Affiliations
We report here the first results obtained with NEXT-100 using low-energy calibration data from $$^{83m}$$Kr decays, which allow mapping of the detector response in the active volume and monitoring of its stability over time. After homogenizing the light response, we achieve an energy resolution of 4.37% FWHM at 41.5 keV for $$^{83m}$$Kr point-like energy deposits contained in a radius of 425 mm. In a fiducial region representing the operating conditions of NEXT-100 at 10 bar we obtain an improved energy resolution of 4.16% FWHM. These results are in good agreement with that obtained in NEXT-White, and an $$E^{-1/2}$$ extrapolation to $$Q_{ββ}$$ yields an energy resolution close to 0.5% FWHM, well below the 1% FWHM design target.
Research Organization:
Valencia U., IFIC; Manchester U.; Donostia Intl. Phys. Ctr., San Sebastian; Weizmann Inst.; UNC, Chapel Hill; Hebrew U.; Texas U., Arlington (main); U. Aveiro (main); Basque U., San Sebastian; Texas U., Arlington; Santiago de Compostela U., IGFAE; Basque U., Bilbao; Los Alamos National Laboratory (LANL), Los Alamos, NM (United States); LSC, Canfranc; Pacific Northwest National Laboratory (PNNL), Richland, WA (United States); LIP, Coimbra; Argonne National Laboratory (ANL), Argonne, IL (United States); NVIDIA, Santa Clara; Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States); Iowa State U.; Girona U.; CFM, San Sebastian; Valencia, Polytechnic U.; Coimbra U.; Valencia U.; IKERBASQUE, Bilbao; Ben Gurion U. of Negev
Sponsoring Organization:
US Department of Energy
DOE Contract Number:
89243024CSC000002
OSTI ID:
3006313
Report Number(s):
FERMILAB-PUB-25-0878; oai:inspirehep.net:3076093; arXiv:2511.01710
Journal Information:
No journal information, Journal Name: No journal information
Country of Publication:
United States
Language:
English

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