A novel use of light guides and wavelength shifting plates for the detection of scintillation photons in large liquid argon detectors

Howard, B.; Mufson, S.; Whittington, D.; Adams, B.; Baugh, B. T.; Jordan, J. R.; Karty, Jonathan A.; Macias, C. T.; Pla‐Dalmau, A.

doi:10.1016/j.nima.2018.06.050

Cited by 28 publications

(40 citation statements)

References 24 publications

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“…We tested six different configurations. The average efficiency considering the six tested ARAPUCAs is < ar ap >= 0.37 ± 0.01(sys) ± 0.03(stat)%, which is comparable to other devices with same purposes [8].…”

Section: Discussionsupporting

confidence: 58%

Increasing the efficiency of photon collection in LArTPCs: the ARAPUCA light trap

et al. 2018

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A: The Liquid Argon Time Projection Chambers (LArTPCs) are a choice for the next generation of large neutrino detectors due to their optimal performance in particle tracking and calorimetry. The detection of Argon scintillation light plays a crucial role in the event reconstruction as well as the time reference for non-beam physics such as supernovae neutrino detection and baryon number violation studies. In this contribution, we present the current R&D work on the ARAPUCA (Argon R&D Advanced Program at UNICAMP), a light trap device to enhance Ar scintillation light collection and thus the overall performance of LArTPCs. The ARAPUCA working principle is based on a suitable combination of dichroic filters and wavelength shifters to achieve a high efficiency in light collection. We discuss the operational principles, the last results of laboratory tests and the application of the ARAPUCA as the alternative photon detection system in the protoDUNE detector. K: Noble liquid detectors (scintillation, ionization, double-phase), Neutrino detectors, Scintillators, scintillation and light emission processes (solid, gas and liquid scintillators) A X P : 1802.09726

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Section: Discussionsupporting

confidence: 58%

Increasing the efficiency of photon collection in LArTPCs: the ARAPUCA light trap

et al. 2018

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“…However, the prototype systems share many commonalities, and where such broader impact is appropriate, it will be noted here. Many of the results of this chapter have been published in Reference [102], and several figures are those used in said reference.…”

Section: Chapter 8 Development Characterization and Testing Of Protmentioning

confidence: 99%

Toward A Precision Era Of Neutrino Oscillation Physics: Liquid Argon Scintillation Detector Development for DUNE and Neutrino Oscillation Studies with NOvA

Howard¹

2019

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Work on electron neutrino appearance analysis, developing understanding of effects and systematics for the first antineutrino beam analysis and continuing analysis, mostly in efforts relating to the understanding of the wrong-sign component of the sample, but also as relates to other effects and systematics, including interaction modes and neutrons. Worked on developing calibration efforts assessing detector response. In conducting this research, also interfaced with grid computing and file management. Research Direction: Dr. Jon Urheim Collaborator on Deep Underground Neutrino Experiment (DUNE), formerly LBNE Work on photon detection system for scintillation light in liquid argon (LAr) time-projection chambers. Some of this work has involved studies of individual components, most notably hands-on work in studies using silicon photomultipliers (SiPMs) and a waveform digitizer. Further work has involved an integrated prototype test in a liquid argon test stand at Fermilab and work on simulations. By comparing a simulation combining component studies and vendor information with data from an integrated prototype module, information on the scintillation yield of LAr due to minimum ionizing cosmic-rays could be determined. I have also begun looking into dE/dx studies for proton decay in DUNE FD, and I have taken protoDUNE shifts.

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“…An vapor deposition method [13] is commonly used in TPB film fabrication, and the reference [14] proposes a spraying method. Since the vapor deposition method asks for the high vacuum and spraying method has no control on the film's thickness, we propose a fabrication of TPB film using the spin-coating method, which can act as an alternative option.…”

Section: Introductionmentioning

confidence: 99%

Spin coating of TPB film on acrylic substrate and measurement of its wavelength shifting efficiency

Yang

Tang

et al. 2020

NUCL SCI TECH

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Scintillation light from liquid noble gas in a neutrino or dark matter experiment lies typically within the vacuum ultraviolet (VUV) region and might be strongly absorbed by surrounding materials such as light guides or photomultipliers. Tetraphenyl butadiene (TPB) is a fluorescent material and acts as a wavelength shifter (WLS) which can turn the UV light to the visible light around a peak wavelength of 425 nm, enabling the light signals to be detected easily for physics study. Compared with a traditional TPB coating method using vapor deposition, we propose an alternative technique with a spin coating procedure in order to facilitate the development of neutrino and dark matter detectors. This article introduces how to fabricate the TPB film on acrylics using the spin coating method, reports measurement of sample film thickness and roughness, shows the reemission spectrum, and quantifies the wavelength shifting efficiency (WLSE).

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A novel use of light guides and wavelength shifting plates for the detection of scintillation photons in large liquid argon detectors

Cited by 28 publications

References 24 publications

Increasing the efficiency of photon collection in LArTPCs: the ARAPUCA light trap

Increasing the efficiency of photon collection in LArTPCs: the ARAPUCA light trap

Toward A Precision Era Of Neutrino Oscillation Physics: Liquid Argon Scintillation Detector Development for DUNE and Neutrino Oscillation Studies with NOvA

Spin coating of TPB film on acrylic substrate and measurement of its wavelength shifting efficiency

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