The NEXT experiment: A high pressure xenon gas TPC for neutrinoless double beta decay searches

Lorca, D.; Martín-Albo, J.; Monrabal, F.

doi:10.1016/j.nima.2012.10.048

Cited by 8 publications

(8 citation statements)

References 16 publications

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“…Photomultiplier tubes (PMTs) were shown to cause a major contribution to the electronic recoil background from detector materials in the XENON100 [10] and LUX [12] experiments. Other current and planned experiments based on xenon as a detection medium for rare-event searches are XMASS [13], PandaX [14], LZ [15], DAR-WIN [16][17][18], NEXT [19] and EXO [20].…”

Section: Introductionmentioning

confidence: 99%

Lowering the radioactivity of the photomultiplier tubes for the XENON1T dark matter experiment

Aprile¹,

Agostini²,

Alfonsi³

et al. 2015

Eur. Phys. J. C

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The low-background, VUV-sensitive 3-inch diameter photomultiplier tube R11410 has been developed by Hamamatsu for dark matter direct detection experiments using liquid xenon as the target material. We present the results from the joint effort between the XENON collaboration and the Hamamatsu company to produce a highly radiopure photosensor (version R11410-21) for the XENON1T dark matter experiment. After introducing the photosensor and its components, we show the methods and results of the radioactive contamination measurements of the individual 123 546 Page 2 of 10 Eur. Phys. J. C (2015) 75 :546 materials employed in the photomultiplier production. We then discuss the adopted strategies to reduce the radioactivity of the various PMT versions. Finally, we detail the results from screening 286 tubes with ultra-low background germanium detectors, as well as their implications for the expected electronic and nuclear recoil background of the XENON1T experiment.

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Section: Introductionmentioning

confidence: 99%

Lowering the radioactivity of the photomultiplier tubes for the XENON1T dark matter experiment

Aprile¹,

Agostini²,

Alfonsi³

et al. 2015

Eur. Phys. J. C

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“…NEXT is an experiment for neutrinoless double beta decay searches at the Canfranc Underground Laboratory (LSC) [16]. The detector consists of a high-pressure electroluminescence time projection chamber (TPC) filled with gaseous high purity Xenon enriched with Xe-136, with photodetectors at both ends.…”

Section: Other Particle Physics Experimentsmentioning

confidence: 99%

Overview of SiPM applications

Llosá¹

2013

Proceedings of International Workshop on New Photon-Detectors — PoS(PhotoDet 2012)

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Multicell Geiger-mode avalanche photodiodes, or silicon photomultipliers (SiPMs), have proven to be a sound alternative to other types of photodetectors in different fields and have advantages that can significantly overcome performances previously achieved, and enable new possibilities. SiPM development continues with the improvement of general properties, and the enhancement of determined characteristics to fulfil specific requirements for different applications. As the number of SiPM manufacturers rises, their properties improve and more possibilities for readout appear in the market, an increasing number of physics experiments tend to replace other type of photodetectors by SiPMs, or to employ them in innovative applications. SiPMs have been successfully applied or are being tested in numerous applications in high energy physics (in calorimeters for CALICE, in T2K or in Cherenkov detectors), in astroparticle physics (such as MAGIC or EUSO), and in medical imaging (for example in the combination of PET and MR imaging modalities or for time of flight PET).

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“…The use of Xenon is motivated by its natural abundance of 136 Xe at ∼ 9%, its low cost and the fact that it is safe and easy to enrich. In this paper a possible setup of the detector is studied in detail, showing that its performance in terms of background events in the region of interest (ROI) can be as low as the one reached by other Xenon based experiments such as EXO [4], NEXT [5] or KamLAND-Zen [6]. The possibility to set a limit on the ββ0ν decay using 136 Xe in a moderate volume detector would definitely be an important achievement, although it would be difficult to obtain competitive results compared to already running experiments with larger mass.…”

Section: Introductionmentioning

confidence: 99%

“…5 MeV of the two gammas from 60 Co and a peak due to the 214 Bi decay in the Uranium decay chain are inside the ROI.…”

mentioning

confidence: 99%

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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The NEXT experiment: A high pressure xenon gas TPC for neutrinoless double beta decay searches

Cited by 8 publications

References 16 publications

Lowering the radioactivity of the photomultiplier tubes for the XENON1T dark matter experiment

Lowering the radioactivity of the photomultiplier tubes for the XENON1T dark matter experiment

Overview of SiPM applications

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

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