Measurement of fast neutron background in the Gran Sasso underground laboratory using a geyser-concept bubble-chamber
INFN, Sezione di Milano Bicocca, P.za della Scienza 3, 20126, Milan, Italy
2 INFN, LNGS, Via G. Acitelli 22, 67100, Assergi, L’Aquila, Italy
3 FSN-FISS-RNR, ENEA, Centro Ricerche Casaccia, Via Anguillarese 301, S. Maria di Galeria, 00123, Rome, Italy
4 DIAEE, Sapienza Università di Roma, Via Eudossiana 18, 00184, Rome, Italy
5 INFN, Sezione di Roma La Sapienza, P.le Aldo Moro 2, 00185, Rome, Italy
6 INAF, Osservatorio Astrofisico di Torino, 10025, Pino Torinese, Turin, Italy
7 UNIMIB, Università di Milano-Bicocca, Dip. di Fisica, P.za della Scienza 3, 20126, Milan, Italy
Accepted: 14 April 2023
Published online: 3 May 2023
A measurement of the fast neutron background in the Gran Sasso underground laboratory has been performed by the MOSCAB thermodynamic bubble chamber, a neutron detector which identifies fast neutrons passing through the metastable fluid by scattering ions. The result of this measurement confirms the results previously obtained using detectors based on totally different techniques, thus corroborating the previous results in terms of both integral intensity and spectral characteristics, at least in the energy region where the current measurement technique is sensitive.
© The Author(s) 2023
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