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This article describes a radon emanation measurement technique using liquid scintillator counting. A model for radon loading and transport is described, along with its calibration. Detector background and blank have been studied and…

Instrumentation and Detectors · Physics 2025-01-30 A. B. M. R. Sazzad , P. Acharya , P. Back , J. Busenitz , D. Chernyak , Y. Meng , A. Piepke , C. A. Rhyne , R. Tsang

Scintillation light produced in liquid xenon (LXe) by alpha particles, electrons and gamma-rays was detected with a large area avalanche photodiode (LAAPD) immersed in the liquid. The alpha scintillation yield was measured as a function of…

Instrumentation and Detectors · Physics 2009-11-11 K. Ni , E. Aprile , D. Day , K. L. Giboni , J. A. M. Lopes , P. Majewski , M. Yamashita

LiquidO is an innovative radiation detector concept. The core idea is to exploit stochastic light confinement in a highly scattering medium to self-segment the detector volume. In this paper, we demonstrate event-by-event muon tracking in a…

Liquid argon time projection chambers have emerged as a competitive technology for detecting solar neutrinos. The SoLAr collaboration was formed to explore argon detectors with pixelated light and charge readout, aiming for high detection…

We have exposed a dual-phase Liquid Argon Time Projection Chamber (LAr-TPC) to a low energy pulsed narrowband neutron beam, produced at the Notre Dame Institute for Structure and Nuclear Astrophysics to study the scintillation light yield…

The China Dark Matter Experiment (CDEX) Collaboration will carry out a direct search for weakly interacting massive particles with germanium detectors. Liquid argon will be utilized as an anti-Compton and cooling material for the germanium…

Instrumentation and Detectors · Physics 2015-06-18 Ying-Shuai Du , Qian Yue , Yi-Bao Liu , Qing-Hao Chen , Jin LI , Jian-Ping Cheng , Ke-Jun Kang , Yuan-Jing Li , Yu-Lan Li , Hao Ma , Hao-Yang Xing , Xun-Zhen Yu , Zhi Zeng

Using a single-phase liquid argon detector with a signal yield of 4.85 photoelectrons per keV of electronic-equivalent recoil energy (keVee), we measure the scintillation time dependence of both electronic and nuclear recoils in liquid…

Nuclear Experiment · Physics 2014-11-18 W. H. Lippincott , K. J. Coakley , D. Gastler , A. Hime , E. Kearns , D. N. McKinsey , J. A. Nikkel , L. C. Stonehill

We performed a time-resolved spectroscopic study of the VUV/UV argon scintillation as a function of pressure and electric field, by means of a wavelength sensitive detector operated with different radioactive sources. Our work conveys new…

A filter system for removing electronegative impurities from liquid argon is described. The active components of the filter are adsorbing molecular sieve and activated-copper-coated alumina granules. The system is capable of purifying…

Instrumentation and Detectors · Physics 2009-06-25 A. Curioni , B. T. Fleming , W. Jaskierny , C. Kendziora , J. Krider , S. Pordes , M. Soderberg , J. Spitz , T. Tope , T. Wongjirad

Liquid xenon offers several features, which make it suitable for applications in nuclear medicine, such as high scintillation yield and fast scintillation decay time. Moreover, being a continuous medium with a uniform response, liquid xenon…

Instrumentation and Detectors · Physics 2021-03-02 Carmen Romo-Luque

Large liquid argon detectors have become widely used in low rate experiments, including dark matter and neutrino research. However, the optical properties of liquid argon are not well understood at the large scales relevant for current and…

Instrumentation and Detectors · Physics 2017-08-15 Emily Grace , Alistair Butcher , Jocelyn Monroe , James A. Nikkel

As liquid argon (LAr) detectors are made at progressively larger sizes, accurate models of LAr optical properties become increasingly important for simulating light transport, understanding signals, and developing analyses. The refractive…

Instrumentation and Detectors · Physics 2024-01-04 Shawn Westerdale

This master thesis presents a new type of Positron Emission TOF Apparatus using Liquid xenOn (PETALO). The detector is based in the Liquid Xenon Scintillating Cell (LXSC). The cell is a box filled with liquid xenon (LXe) whose transverse…

Medical Physics · Physics 2016-06-01 J. M. Benlloch-Rodriguez

As a prototype detector for the SHiP Surrounding Background Tagger (SBT), we constructed a cell (120 cm x 80 cm x 25 cm) made from corten steel that is filled with liquid scintillator (LS) composed of linear alkylbenzene (LAB) and…

We report the measurement of longitudinal electron diffusion coefficients in liquid argon for electric fields between 100 and 2000 V/cm with a gold photocathode as a bright electron source. The measurement principle, apparatus, and data…

This paper describes new techniques for producing lightguides for detection of scintillation light in liquid argon time projection chambers. These can be used in future neutrino experiments such as SBND and DUNE. These new results build on…

Instrumentation and Detectors · Physics 2016-04-13 Z. Moss , J. Moon , L. Bugel , J. M. Conrad , K. Sachdev , M. Toups , T. Wongjirad

The sensitivity of our liquid argon purity measurement -around 0.03%- leads us to refine the tools used classically in this field. First we introduce an analytical form describing the spectrum of a 207Bi source for different values of…

High Energy Physics - Experiment · Physics 2007-05-23 E. Barrelet , T. P. Yiou

The Auger Muons and Infill for the Ground Array (AMIGA) aims to both extend the detection range of the Pierre Auger Observatory down to energies $\sim 10^{16.5}~\mathrm{eV}$ and to measure the muon content of extensive air showers. To…

Instrumentation and Detectors · Physics 2019-06-12 Alvaro Taboada

The detectors based on the liquid scintillator (LS) monitored by an array of photo-multiplier tubes (PMT) are often used in low energy experiments such as neutrino oscillation studies and search for dark matter. Detectors of this kind…