Scintillating properties of frozen new liquid scintillators

Britvich, G.I.; Galeazzi, F.; Golovkin, S.V.; Martellotti, G.; Medvedkov, A.; Penso, G.; Solovjev, A.S.; Vasil’chenko, V.G.

doi:10.1016/s0168-9002(98)01365-5

Cited by 7 publications

(5 citation statements)

References 9 publications

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“…3.2. The scintillator will likely be operated at liquid Xe temperatures to enhance light yields [8], though development work remains to be completed to determine the impact of temperature on scintillator transparency, as well as explore an optimal cooling strategy and additional cryogenic safety concerns.…”

Section: Scintillatormentioning

confidence: 99%

After LUX: The LZ Program

Malling,

Akerib,

Araujo

et al. 2011

Preprint

104

140

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The LZ program consists of two stages of direct dark matter searches using liquid Xe detectors. The first stage will be a 1.5-3 tonne detector, while the last stage will be a 20 tonne detector. Both devices will benefit tremendously from research and development performed for the LUX experiment, a 350 kg liquid Xe dark matter detector currently operating at the Sanford Underground Laboratory. In particular, the technology used for cryogenics and electrical feedthroughs, circulation and purification, low-background materials and shielding techniques, electronics, calibrations, and automated control and recovery systems are all directly scalable from LUX to the LZ detectors. Extensive searches for potential background sources have been performed, with an emphasis on previously undiscovered background sources that may have a significant impact on tonne-scale detectors. The LZ detectors will probe spin-independent interaction cross sections as low as 5 × 10 −49 cm 2 for 100 GeV WIMPs, which represents the ultimate limit for dark matter detection with liquid xenon technology.

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Section: Scintillatormentioning

confidence: 99%

After LUX: The LZ Program

Malling,

Akerib,

Araujo

et al. 2011

Preprint

104

140

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“…Scintillator light yields and decay times have been measured following a procedure described elsewhere [12,13]. Results obtained, both with the commercial LS and with the new LS, are summarised in Table 1.…”

Section: Liquid Scintillatorsmentioning

confidence: 99%

Large liquid-scintillator trackers for neutrino experiments

Benussi

Bruski

D’Ambrosio

et al. 2002

Nuclear Instruments and Methods in Physics Research Section A:

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Results are given on tests of large particle trackers for the detection of neutrino interactions in long-baseline experiments. Module prototypes have been assembled using TiO 2 -doped polycarbonate panels. These were subdivided into cells of ∼ 1 cm 2 cross section and 6 m length, filled with liquid scintillator. A wavelength-shifting fibre inserted in each cell captured a part of the scintillation light emitted when a cell was traversed by an ionizing particle. Two different fibre-readout systems have been tested: an optoelectronic chain comprising an image intensifier and an Electron Bombarded CCD (EBCCD); and a hybrid photodiode (HPD). New, low-cost liquid scintillators have been investigated for applications in large underground detectors. Testbeam studies have been performed using a commercially available liquid scintillator. The number of detected photoelectrons for minimum-ionizing particles crossing a module at different distances from the fibre readout end was 6 to 12 with the EBCCD chain and a mirror at the non-readout end; 4 to 10 with the HPD and no mirror. The light-attenuation lengths in the fibres were ∼ 9.4 m with the EBCCD and ∼ 6.4 m with the HPD. The detector response to electron showers has also been measured. After 10 radiation lengths of lead, the transverse position of the incoming electron was determined with a precision of a few millimeters for electrons of 4 GeV, and with a precision of 1.5−2.0 cm for electrons of 1 GeV.

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“…This is the case for GS1 glass, which, in addition to a main fast ( 70 ns) component, has a large tail up to 1 ms [29]. For plastic and liquid scintillators slow components are negligible, their decay times being of the order of a few nanoseconds [7,30]. Optical crosstalk…”

Section: Attenuation Length Of Light In Bundlesmentioning

confidence: 99%

“…For all considered LS's based on 1MN or IPN, about 96 % of the emitted light decays with a time constant o f 6 8 ns, and the remaining 4 % of the light has a decay time of 30 40 ns [30]. As an example, the decay curve of 1MN doped with R6 is shown in Fig.…”

Section: Short Decay Timementioning

confidence: 99%

High-resolution tracking using large capillary bundles filled with liquid scintillator

Annis

Bay

Benussi

et al. 2000

Nuclear Instruments and Methods in Physics Research Section A:

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We h a v e developed large high-resolution tracking detectors based on glass capillaries lled with organic liquid scintillator of high refractive index. These liquid-core scintillating optical bres act simultaneously as detectors of charged particles and as image guides. Track images projected onto the readout end of a capillary bundle are visualized by an optoelectronic chain consisting of a set of image-intensi er tubes followed by a photosensitive CCD or by an EBCCD camera. Two prototype detectors, each composed of 10 6 capillaries with 20 25 m diameter and 0.9 1.8 m length, have been tested, and a spatial resolution of the order of 20 40 m has been attained. A high scintillation e ciency and a large light-attenuation length, in excess of 3 m, was achieved through special puri cation of the liquid scintillator. Along the tracks of minimum-ionizing particles, the hit densities obtained were 8 hits/mm at the readout window, and 3 hits/mm at 1 m a w a y . The level of radiation resistance of the prototype detectors is at least an order of magnitude higher than that of other tracking devices of comparable performance.

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Scintillating properties of frozen new liquid scintillators

Cited by 7 publications

References 9 publications

After LUX: The LZ Program

After LUX: The LZ Program

Large liquid-scintillator trackers for neutrino experiments

High-resolution tracking using large capillary bundles filled with liquid scintillator

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