Gamma-ray flux in the Fréjus underground laboratory measured with NaI detector

Ohsumi, H.; Gurriarán, R.; Hubert, Ph.; Arnold, R.; Augier, C.; Baker, J. D.; Barabash, A. S.; Bing, O.; Brudanin, V.; Caffrey, A.J.; Campagne, Jean-Eric; Caurier, E.; Dassié, D.; Egorov, V.; Errahmane, K.; Eschbach, R.; Filipova, T.; Guyonnet, J.L.; Hubert, F.; Jollet, C.; Jullian, S.; Kisel, I.; Klimenko, A.; Kochetov, O.; Kornoukhov, V. N.; Kovalenko, V.; Kuzichev, V.F.; Lalanne, D.; Laplanche, F.; Leccia, F.; Linck, I.; Longuemare, C.; Marquet, Ch.; Mauger, F.; Nicholson, H.; Nikolic-Audit, I.; Piquemal, F.; Reyss, J. L.; Sarazin, X.; Smolnikov, A.; Štekl, I.; Suhonen, J.; Sutton, C.S.; Szklarz, G.; Timkin, V.; Tretyak, V. I.; Umatov, V. I.; Vála, L.; Vanyushin, I.A.; Vareille, A.; Vasiliev, V. A.; Vasiliev, S. I.; Vorobel, V.; Vylov, Ts.

doi:10.1016/s0168-9002(01)01866-6

Cited by 19 publications

(13 citation statements)

References 11 publications

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“…It has to be noted that the external background, as highlighted in Ref. [15], depends on the environment itself and a difference up to a factor of 6 was found with respect to measurements carried out in other laboratories. In addition the gamma measurements, in particular in the energy range between 4 and 6 MeV, are detector dependent: despite the effort done by the authors to obtain an absolute measurement subtracting the detector component, the developed simulation could be affected by possible uncertainties in the used rates and spectra.…”

Section: External Gammas Backgroundmentioning

confidence: 95%

“…The simulation is based on the external gamma energy spectrum and rate measured at the LSM laboratory as explained in Ref. [15]. It has to be noted that the external background, as highlighted in Ref.…”

Section: External Gammas Backgroundmentioning

confidence: 99%

“…In addition the gamma measurements, in particular in the energy range between 4 and 6 MeV, are detector dependent: despite the effort done by the authors to obtain an absolute measurement subtracting the detector component, the developed simulation could be affected by possible uncertainties in the used rates and spectra. Therefore, the results presented in this section should be taken as an order of magnitude of the background estimate, considering that an error up [15].…”

Section: External Gammas Backgroundmentioning

confidence: 99%

“…A detailed analysis to remove such a contribution was carried out in Ref. [15] and the Shielding Events per year No shielding 20250 ± 4700 (5 cm Cu + 10 cm Pb) 27 ± 6 (5 cm Cu + 10 cm Pb) + 5 cm Pb 1.5 ± 0.4 (5 cm Cu + 10 cm Pb) + 10 cm Pb 0.12 ± 0.03 expected rate due to real external gammas is 3.8 × 10 −6 events cm −2 s −1 .…”

Section: Energy Range 4-6 Mevmentioning

confidence: 99%

“…However, the rate assumed for external gammas in the current energy range does not include such a reduction factor (value not present in Ref. [15]). The obtained background rate is therefore conservative since the considered setup would have an additional shielding (about 15 cm more) needed to reject low energy gammas.…”

Section: Energy Range 4-6 Mevmentioning

confidence: 99%

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Study of a spherical Xenon gas TPC for neutrinoless double beta detection

et al. 2018

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A: Several efforts are ongoing for the development of spherical gaseous time projection chamber detectors for the observation of rare phenomena such as weakly interacting massive particles or neutrino interactions. The proposed detector, thanks to its simplicity, low energy threshold and energy resolution, could be used to observe the ββ0ν process i.e. the neutrinoless double beta decay. In this work, a specific setup is presented for the measurement of ββ0ν on 50 kg of 136 Xe. The different backgrounds are studied, demonstrating the possibility to reach a total background per year in the detector mass at the level of 2 events per year. The obtained results are competitive with the present generation of experiments and could represent the first step of a more ambitious roadmap including the ββ0ν search with different gases with the same detector and therefore the same background sources. The constraints in terms of detector constructions and material purity are also addressed, showing that none of them represents a show stopper for the proposed experimental setup.

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Section: External Gammas Backgroundmentioning

confidence: 95%

Section: External Gammas Backgroundmentioning

confidence: 99%

Section: External Gammas Backgroundmentioning

confidence: 99%

Section: Energy Range 4-6 Mevmentioning

confidence: 99%

Section: Energy Range 4-6 Mevmentioning

confidence: 99%

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