Development of VUV wavelength shifter for the use with a visible light photodetector in noble gas filled detectors

Akimov, D.; Akindinov, A.; Alexandrov, I. S.; Belov, V.; Borshchev, Oleg V.; Burenkov, A.; Danilov, M.; Kovalenko, A. G.; Luponosov, Yuriy N.; Ponomarenko, Sergei A.; Stekhanov, V.; Сурин, Н. М.; Zav’yalov, S. A.; Yablokov, M. Yu.

doi:10.1016/j.nima.2011.12.036

Cited by 20 publications

(10 citation statements)

References 8 publications

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“…The authors of [351] are exploring new techniques for rendering wavelength shifters harmless to the purity of the xenon: besides the protective layer over the p-terphenyl, as described above, a new p-terphenyl-based nanostructured organosilicon luminophore is also being examined: besides conversion of the xenon emission to longer wavelengths (≈370 nm instead of ≈330 nm for pure p-terphenyl), this would also be less volatile and could perhaps be used in a clean environment without a protective layer.…”

Section: Optical Readout From Micro-pattern Structuresmentioning

confidence: 99%

Liquid noble gas detectors for low energy particle physics

2013

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We review the current status of liquid noble gas radiation detectors with energy threshold in the keV range, which are of interest for direct dark matter searches, measurement of coherent neutrino scattering and other low energy particle physics experiments. Emphasis is given to the operation principles and the most important instrumentation aspects of these detectors, principally of those operated in the double-phase mode. Recent technological advances and relevant developments in photon detection and charge readout are discussed in the context of their applicability to those experiments.

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Section: Optical Readout From Micro-pattern Structuresmentioning

confidence: 99%

Liquid noble gas detectors for low energy particle physics

2013

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“…NOLs can be designed and optimized for particular properties, including high PLQY at VUV excitation. While currently not used in LAr detectors, their applications in liquid xenon have been explored [34,35].…”

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confidence: 99%

Wavelength Shifters for Applications in Liquid Argon Detectors

Kuźniak

Szelc

2020

Instruments

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Wavelength shifters and their applications for liquid argon detectors have been a subject of extensive R&D procedures over the past decade. This work reviews the most recent results in this field. We compare the optical properties and usage details together with the associated challenges for various wavelength shifting solutions. We discuss the current status and potential future R&D directions for the main classes of wavelength shifters.

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“…As a result of the transition, the double bond character of the bridging bonds is increased, leading to planar D 2 h symmetrical equilibrium geometries in the excited states of both conformers (1 1 B 1u in the D 2 h point group). The fluorescence emission is thus characterized by a well-resolved vibrational fine structure, in marked contrast to the broad and featureless absorption. ,,,,,, …”

Section: Resultsmentioning

confidence: 99%

“…The fluorescence emission is thus characterized by a well-resolved vibrational fine structure, in marked contrast to the broad and featureless absorption. 3,10,11,14,16,18,25 Band A overlaps short axis-polarized absorbance B with a maximum close to 35700 cm −1 (280 nm). Several short axispolarized transitions are predicted in this region, e.g., 1 1 B 2 , 2 B 2 and 1 1 B 3 states of the D 2 rotamer, and 1 1 B u and 2 1 B u states of the C 2h rotamer, but they are all predicted to be very weak (Tables 1 and 2).…”

Section: ■ Theoretical Sectionmentioning

confidence: 99%

Vacuum UV Polarization Spectroscopy ofp-Terphenyl

et al. 2017

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p-Terphenyl is used as a component in a variety of optical devices. In this investigation, the electronic transitions of p-terphenyl are investigated by synchrotron radiation linear dichroism (SRLD) spectroscopy in the range 30000-58000 cm (330-170 nm) on molecular samples aligned in stretched polyethylene, thereby extending the region investigated by polarization spectroscopy into the vacuum UV. The resulting partial absorbance curves reveal that the vacuum UV band system with a maximum at 55000 cm (180 nm) is predominantly short axis-polarized. This result is of interest in the optical applications of p-terphenyl, for example as a wavelength shifter. The observed polarization spectra are compared with the results of quantum chemical model calculations. Convoluted versions of the transitions predicted with the semiempirical ZINDO method and with the long-range-corrected time-dependent density functional theory (TD-DFT) procedures TD-CAM-B3LYP, TD-LC-ωPBE, and TD-ωB97XD are in similar qualitative agreement with the observed partial absorbance curves throughout the investigated spectral regions, while TD-B3LYP fails to predict qualitatively the spectrum of p-terphenyl in the region above 40000 cm (250 nm).

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Development of VUV wavelength shifter for the use with a visible light photodetector in noble gas filled detectors

Cited by 20 publications

References 8 publications

Liquid noble gas detectors for low energy particle physics

Liquid noble gas detectors for low energy particle physics

Wavelength Shifters for Applications in Liquid Argon Detectors

Vacuum UV Polarization Spectroscopy ofp-Terphenyl

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