2018
DOI: 10.1088/1748-0221/13/01/p01006
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Characterization of an Ionization Readout Tile for nEXO

Abstract: A new design for the anode of a time projection chamber, consisting of a charge-detecting “tile", is investigated for use in large scale liquid xenon detectors. The tile is produced by depositing 60 orthogonal metal charge-collecting strips, 3 mm wide, on a 10 cm × 10 cm fused-silica wafer. These charge tiles may be employed by large detectors, such as the proposed tonne-scale nEXO experiment to search for neutrinoless double-beta decay. Modular by design, an array of tiles can cover a sizable area. The wid… Show more

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Cited by 21 publications
(32 citation statements)
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“…Inside the capsule, 252 Cf, electroplated onto a platinum surface (7), produces xenon scintillation light after an α-decay (7) is at the bottom of the vacuum chamber (5). The detector cage (1) and the detectors (9) are cooled through a copper tube (6), that is brazed onto it and flushed with liquid nitrogen boil-off gas.…”
Section: A Stanford Setupmentioning
confidence: 99%
See 2 more Smart Citations
“…Inside the capsule, 252 Cf, electroplated onto a platinum surface (7), produces xenon scintillation light after an α-decay (7) is at the bottom of the vacuum chamber (5). The detector cage (1) and the detectors (9) are cooled through a copper tube (6), that is brazed onto it and flushed with liquid nitrogen boil-off gas.…”
Section: A Stanford Setupmentioning
confidence: 99%
“…pick-up, PTFE spacers were used to electrically isolate the copper box from the rest of the vacuum chamber. Copper pipes (6) are brazed to the bottom perimeter of copper box, providing cooling by a flow of nitrogen boil-off gas. The temperature is controlled by resistive heaters, attached to the ingoing pipe and controlled by Omega PID controllers [16], to allow stable measurements at the LXe temperature in nEXO at around 169 K, with a variation of 0.5 K. The vacuum achieved by this setup is better than 1 × 10 −6 mbar.…”
Section: A Stanford Setupmentioning
confidence: 99%
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“…Ref. [86]. A study by DarkSide collaborators has shown that the alpha particle light yield increases with increasing applied external field [87].…”
Section: Saturation and Tba Corrections To S1mentioning
confidence: 99%
“…China and tested at Stanford University. The characterization of the tile can be fully understood [13], shown in the right plot in Fig. 7.…”
Section: Pos(hql2018)054mentioning
confidence: 99%