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We examine the potential for gamma-ray conversion to electron-positron pairs, either in the field of a nucleus or of an electron of a detector, to measure the fraction P of linear polarization of cosmic gamma sources. For this purpose we…

Instrumentation and Methods for Astrophysics · Physics 2013-09-27 Denis Bernard

Scintillators have long been known as radiation detectors and are still used in various applications. Recently, scintillators containing $^6$Li have been developed as neutron detectors and have attracted attention. $^6$Li absorbs thermal…

Instrumentation and Detectors · Physics 2023-01-09 Takashi Iida , Masao Yoshino , Kei Kamada , Rei Sasaki , Ryuga Yajima

Pulse shape discriminating scintillator materials in many cases allow the user to identify two basic kinds of pulses arising from two kinds of particles: neutrons and gammas. An uncomplicated solution for building a classifier consists of a…

Instrumentation and Detectors · Physics 2021-02-03 Andrew Glenn , Qi Cheng , Alan D. Kaplan , Ron Wurtz

We outline the motivation and conceptual design for a new experiment aimed at a 10-fold improvement in the accuracy of the parity-violating asymmetry A_gamma in the angular distribution of 2.2 MeV gamma rays from the n+p-->d+gamma reaction.…

The G-NUMEN array is the future gamma spectrometer of the NUMEN experiment (Nuclear Matrix Element for the Neutrinoless double beta decay), to be installed around the object point of the MAGNEX magnetic spectrometer at the INFN-LNS…

Neutron beam monitors are an essential diagnostic component of neutron scattering facilities. They are used to measure neutron flux, calibrating experiments performed on the instruments, allowing measurement of facility performance,…

Instrumentation and Detectors · Physics 2020-11-12 F. Issa , R. Hall-Wilton , A. Quintanilla , M. Olsson , D. Zielinski , K. Kanaki , N. Tsapatsaris

We have investigated non-standard $\nu \bar \nu \gamma $ and $\nu \bar \nu \gamma \gamma$ couplings via $\nu \bar \nu$ production in a $\gamma p$ collision at the LHC. We obtain 95\% confidence level bounds on $\nu \bar \nu \gamma $ and…

High Energy Physics - Phenomenology · Physics 2012-02-07 I. Sahin

A new type of neutron detector, named Stack Structure Solid organic Scintillator (S$^4$), consisting of multi-layer plastic scintillators with capability to suppress low-energy $\gamma$ rays under high-counting rate has been constructed and…

Precise in-situ measurements of the neutron flux in underground laboratories is crucial for direct dark matter searches, as neutron induced backgrounds can mimic the typical dark matter signal. The development of a novel neutron…

Instrumentation and Detectors · Physics 2022-12-21 I. Giomataris , S. Green , I. Katsioulas , P. Knights , I. Manthos , J. Matthews , T. Neep , K. Nikolopoulos , T. Papaevangelou , B. Phoenix , J. Sanders , R. Ward

The feasibility study of a new technique for thermal neutron detection using a Timepix3 camera (TPX3Cam) with custom-made optical add-ons operated in event-mode data acquisition is presented. The camera has a spatial resolution of ~ 16 um…

Gamma rays and neutrons, emitted following spontaneous fission of 252Cf, were measured in an AGATA experiment performed at INFN Laboratori Nazionali di Legnaro in Italy. The setup consisted of four AGATA triple cluster detectors (12 36-fold…

The Helium-3 shortage and the growing interest in neutron science constitute a driving factor in developing new neutron detection technologies. In this work, we report the development of a double-GEM detector prototype that uses a…

The next generation of radioactive ion beam facilities, which will give experimental access to many exotic nuclei, are presently being developed. At the same time the next generation of high resolution gamma-ray spectrometers, based on…

Nuclear Experiment · Physics 2010-02-17 P. -A. Söderström , A. Al-Adili , J. Nyberg , F. Recchia , E. Farnea , A. Gadea

We present an improved approach for detection of trace amounts of $^{238}$U by means of neutron activation analysis (NAA). The analysis enhancement is obtained by utilizing $\gamma$-$\gamma$ coincidence counting. An empirical method for…

Instrumentation and Detectors · Physics 2021-10-11 Raymond Hei Man Tsang , Omar Nusair , Andreas Piepke

The superheated droplet detector (SDD) is known to be gamma insensitive below a threshold temperature which made them excellent candidates for neutron detection in the presence of gamma rays. Above the threshold temperature, the gamma ray…

Instrumentation and Detectors · Physics 2013-09-10 P. K. Mondal , B. K. Chatterjee

Neutrino interactions with lead produce neutrons in numbers that depend on neutrino energy and type. A detector based on lead perchlorate, for example, would be able to measure the energy deposited by electrons and gammas in coincidence…

Astrophysics · Physics 2011-07-19 S. R. Elliott

We describe a high efficiency detector for measuring electron-positron pair transitions in nuclei. The device was built to be insensitive to gamma rays and to accommodate high overall event rates. The design was optimized for total pair…

Instrumentation and Detectors · Physics 2008-07-08 C. Tur , A. H. Wuosmaa , S. M. Austin , K. Starosta , J. Yurkon , A. Estrade , N. Goodman , J. C. Lighthall , G. Lorusso , S. T. Marley , J. Snyder

In the Standard Model, three discovered generations of leptons and quarks are known to date. However, speculations about existence of next generations have a strong foothold. In this study, we sequentially extrapolate the Standard Model to…

High Energy Physics - Phenomenology · Physics 2025-10-30 Ramkrishna Joshi , Riddhiman Roy

Low energy anti-neutrinos detected from reactors or other sources have typically used the conversion of an anti-neutrino on Hydrogen, producing a positron and a free neutron. This neutron is subsequently captured on a secondary element with…

Instrumentation and Detectors · Physics 2024-11-19 Jarred Novak , Nickolas Solomey , Brooks Hartsock , Brian Doty , Jonathan Folkerts

Gas Electron Multiplier (GEM)-based detectors using a layer of 10B as a neutron converter is becoming popular for thermal neutron detection. A common strategy to simulate this kind of detector is based on two frameworks: Geant4 and…

Instrumentation and Detectors · Physics 2022-12-21 R. Felix dos Santos , M. G. Munhoz , M. Moralles , L. A. Serra Filho , M. Bregant , F. A. Souza