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We studied the light yield of a pure polystyrene slide coated with wavelength-shifter molecules, coupled to a photomultiplier, using beta particles from a 90-Sr source, as a possible easy-to-build, low-cost plastic scintillator detector.…

Instrumentation and Detectors · Physics 2023-05-30 A. Brignoli , A. Conaboy , V. Dormenev , D. Jimeno , D. Kazlou , H. Lacker , C. Scharf , J. Schmidt , H. G. Zaunick

We propose to use pulsar scintillation measurements to test predictions of alternative theories of gravity. Comparing to single-path pulsar timing measurements, the scintillation measurements can achieve a factor of 10^5 improvement in…

General Relativity and Quantum Cosmology · Physics 2017-05-03 Huan Yang , Atsushi Nishizawa , Ue-Li Pen

XENON10 is an experiment designed to directly detect particle dark matter. It is a dual phase (liquid/gas) xenon time-projection chamber with 3D position imaging. Particle interactions generate a primary scintillation signal (S1) and…

This is a brief review of liquid scintillators, an important technology for detection of ionizing radiation. We will first review the basic mechanisms of light production in most organic liquid scintillators. For most practical detector…

Instrumentation and Detectors · Physics 2024-08-06 Milind Vaman Diwan

For the simulation of the scintillation and Cherenkov light propagation in large liquid scintillator detectors a detailed knowledge about the absorption and emission spectra of the scintillator molecules is mandatory. Furthermore reemission…

Instrumentation and Detectors · Physics 2015-09-09 C. Buck , B. Gramlich , S. Wagner

A small-scale, two-phase (liquid/gas) xenon time projection chamber (Xurich II) was designed, constructed and is under operation at the University of Zurich. Its main purpose is to investigate the microphysics of particle interactions in…

Instrumentation and Methods for Astrophysics · Physics 2018-05-23 Laura Baudis , Yanina Biondi , Chiara Capelli , Michelle Galloway , Shingo Kazama , Alexander Kish , Payam Pakarha , Francesco Piastra , Julien Wulf

Liquid xenon is an important detection medium in direct dark matter experiments, which search for low-energy nuclear recoils produced by the elastic scattering of WIMPs with quarks. The two existing measurements of the relative…

We have measured the time dependence of scintillation light from electronic and nuclear recoils in liquid neon, finding a slow time constant of 15.4+-0.2 us. Pulse shape discrimination is investigated as a means of identifying event type in…

Astrophysics · Physics 2008-11-26 J. A. Nikkel , R. Hasty , W. H. Lippincott , D. N. McKinsey

Organic liquid scintillators have been used for decades in many neutrino physics experiments. They are particularly suited for the detection of low-energy neutrinos where energy and timing information is required. Organic liquid…

Instrumentation and Detectors · Physics 2022-12-23 Stefan Schoppmann

We measured signals of low amplitudes originating from cosmic rays, using two rectangular-block scintillation detectors at various positions. The signals were analyzed by a slightly modified signal analyzer from project 'MuonLab', designed…

Instrumentation and Detectors · Physics 2022-11-10 Jan Oldenziel

We present here a comprehensive study of the light yield of primary and secondary scintillations produced in gaseous and liquid Ar in the near infrared (NIR) and visible region, at cryogenic temperatures. The measurements were performed…

Instrumentation and Detectors · Physics 2015-03-18 A. Bondar , A. Buzulutskov , A. Dolgov , A. Grebenuk , S. Peleganchuk , V. Porosev , L. Shekhtman , E. Shemyakina , A. Sokolov

Organic liquid scintillators are used in many neutrino physics experiments of the past and present. In particular for low energy neutrinos when realtime and energy information are required, liquid scintillators have several advantages…

Instrumentation and Detectors · Physics 2016-08-18 Christian Buck , Minfang Yeh

A statistical model of the nonlinear response of silicon photomultipliers is presented. It includes losses of both the photodetection efficiency and the gain during pixel recovery periods as well as the effect of correlated and uncorrelated…

Instrumentation and Detectors · Physics 2019-09-04 Jaime Rosado

(Gd,La)$_2$Si$_2$O$_7$:Ce (La-GPS:Ce) is a new scintillator material with high light output, high energy resolution, and fast decay time. Moreover, the scintillator has a good light output even at high temperature (up to 150$^\circ$C) and…

Instrumentation and Detectors · Physics 2019-07-02 Keita Mizukoshi , Takashi Iida , Izumi Ogawa , Kensei Shimizu , Shunsuke Kurosawa , Kei Kamada , Masao Yoshino , Akira Yoshikawa

Wavelength shifting (WLS) fibers are widely used in particle physics for light collection from scintillators. Light production by charged particles directly in WLS fibers is traditionally ignored. In this study, light produced by charged…

With the development of high-speed readout electronics, the digital pulse shape discrimination (PSD) methods have attracted the attention of more researchers, especially in the field of high energy physics and neutron detection. How to…

Instrumentation and Detectors · Physics 2020-04-22 Jingjun Wen , Jinfu Zhu , Tao Xue , Jirong Cang , Liangjun Wei , Qiyuan Nie , Ming Zeng , Zhi Zeng , Hao Ma , Jianmin Li , Yinong Liu

Plastic scintillators are widely used in particle detectors when precise timing information is required. As a basis for comparing different detectors we use such a characteristic as the time resolution per 1MeV detected energy, i.e. the…

Instrumentation and Detectors · Physics 2021-09-08 Alexey Stoykov , Tigran Rostomyan

A pulsar's scintillation bandwidth is inversely proportional to the scattering delay, making accurate measurements of scintillation bandwidth critical to characterize unmitigated delays in efforts to measure low-frequency gravitational…

Plastic scintillators are widely used as particle detectors in many fields, mainly, medicine, particle physics and astrophysics. Traditionally, they are coupled to a photo-multplier (PMT) but now silicon photo-multipliers (SiPM) are…

Instrumentation and Methods for Astrophysics · Physics 2018-09-28 G. Ros , G. Sáez-Cano , G. A. Medina-Tanco , A. D. Supanitsky

The Water-based Liquid Scintillator (WbLS) enables hybrid detection by combining scintillation and Cherenkov signals, providing superior event reconstruction capabilities compared to conventional neutrino detectors. We measured the light…

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