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A large effort has been carried out to characterize the background of sodium iodide crystals within the ANAIS (Annual modulation with NaI Scintillators) project. In this paper, the background models developed for three 12.5-kg NaI(Tl)…

Instrumentation and Methods for Astrophysics · Physics 2016-08-24 J. Amare , S. Cebrian , C. Cuesta , E. Garcia , M. Martinez , M. A. Olivan , Y. Ortigoza , A. Ortiz de Solorzano , J. Puimedon , M. L. Sarsa , J. A. Villar , P. Villar

We present a new detection scheme for rejecting backgrounds in neutrino less double beta decay experiments. It relies on the detection of Cherenkov light emitted by electrons in the MeV region. The momentum threshold is tuned to reach a…

Instrumentation and Detectors · Physics 2015-05-20 Ioannis Giomataris

Both active and passive magnetic shielding have been used extensively during past and current X-ray astronomy missions to shield detectors from soft protons and electrons entering through telescope optics. However, simulations performed…

Instrumentation and Detectors · Physics 2024-05-08 Christopher S. W. Davis , David Hall

Bolometric detectors are excellent devices for the investigation of neutrinoless double-beta decay (0$\nu\beta\beta$). The observation of such decay would demonstrate the violation of lepton number, and at the same time it would necessarily…

PoGOLite is a balloon-borne hard X-ray polarimeter dedicated to the study of point sources. Compton scattered events are registered using an array of plastic scintillator units to determine the polarisation of incident X-rays in the energy…

Instrumentation and Methods for Astrophysics · Physics 2016-06-20 Maxime Chauvin , Miranda Jackson , Takafumi Kawano , Mózsi Kiss , Merlin Kole , Victor Mikhalev , Elena Moretti , Hiromitsu Takahashi , Mark Pearce

Cadmium telluride (CdTe) and cadmium zinc telluride (CdZnTe) have been regarded as promising semiconductor materials for hard X-ray and Gamma-ray detection. The high atomic number of the materials (Z_{Cd} =48, Z_{Te} =52) gives a high…

Astrophysics · Physics 2009-11-06 Tadayui Takahashi , Shin Watanabe

Indian Centre for Space Physics is engaged in long duration balloon borne experiments with typical payloads less than ~ 3kg. Low cost rubber balloons are used. In a double balloon system, the booster balloon lifts the orbiter balloon to its…

This paper discusses the Cosmic Background (CB) dipoles observations in the framework of the Planck mission. Dipoles observations can be used in three ways: (i) It gives a measurement of the peculiar velocity of our Galaxy which is an…

Astrophysics · Physics 2009-11-07 M. Piat , G. Lagache , J. P. Bernard , M. Giard , J. L. Puget

The physical processes postulated to explain the high-energy emission mechanisms of compact astrophysical sources often yield polarised soft gamma rays (X-rays). PoGOLite is a balloon-borne polarimeter operating in the 25-80 keV energy…

Instrumentation and Methods for Astrophysics · Physics 2019-08-13 Mark Pearce

Rare event experiments, such as those targeting dark matter interactions and neutrinoless double beta (0$\nu\beta\beta$) decay, should be shielded from gamma-rays that originated in rock. This paper describes the simulation of gamma-ray…

Instrumentation and Detectors · Physics 2025-05-20 J. K. Tranter , V. A. Kudryavtsev , P. R. Scovell

PoGOLino is a balloon-borne scintillator-based experiment developed to study the largely unexplored high altitude neutron environment at high geomagnetic latitudes. The instrument comprises two detectors that make use of LiCAF, a novel…

A high efficiency, low background counting setup has been made at TIFR consisting of a special HPGe detector ($\sim$ 70%) surrounded by a low activity copper+lead shield. Detailed measurements are performed with point and extended geometry…

Instrumentation and Detectors · Physics 2014-08-21 N. Dokania , V. Singh , S. Mathimalar , V. Nanal , S. Pal , R. G. Pillay

Cherenkov detectors have been used in space missions for many decades, and for a variety of purposes, including for example, for Galactic Cosmic Ray (GCR) and Solar Energetic Particle (SEP) measurements. Cherenkov detectors are sensitive to…

Instrumentation and Detectors · Physics 2026-03-20 Christopher S. W. Davis , Fan Lei , Keith Ryden , Clive Dyer , Giovanni Santin , Piers Jiggens , Melanie Heil

We study the conceptual feasibility of a high energy, ``short baseline'', zero background experiment to search for muon-neutrino --> electron-neutrino oscillations and fully covering the area where the LSND experiment claims evidence. The…

High Energy Physics - Experiment · Physics 2007-05-23 L. Ludovici , P. Zucchelli

The study of neutrinoless double beta decay has attracted much attention as it can provide valuable information about the mass and the nature of the neutrino. The double beta decay (DBD) itself is also of interest in nuclear physics. While…

Instrumentation and Detectors · Physics 2021-11-18 Swati Thakur , A. Mazumdar , R. Shah , V. Vatsa , V. Nanal , M. S. Pose , Pushpendra P. Singh , P. K. Raina , R. G. Pillay

We report on the search for a CPT and Lorentz invariance violating coupling of the 3He and 129Xe nuclear spins (each largely determined by a valence neutron) to background tensor fields which permeate the universe. Our experimental approach…

General Relativity and Quantum Cosmology · Physics 2014-03-26 F. Allmendinger , W. Heil , S. Karpuk , W. Kilian , A. Scharth , U. Schmidt , A. Schnabel , Yu. Sobolev , K. Tullney

We propose a method for estimating the composition, i.e. the relative amounts of leptons and protons, of extragalactic jets which exhibit X-ray bright knots in their kpc scale jets. The method relies on measuring, or setting upper limits…

Astrophysics · Physics 2009-11-10 Markos Georganopoulos , Demosthenes Kazanas , Eric Perlman , Floyd Stecker

We present a study of the in-flight performance of the XMM-Newton EPIC MOS and pn detectors, with focus on the influence of proton flares and vignetting on the data. The very wide range in the conditions of our sample of observations, in…

Astrophysics · Physics 2009-11-11 J. Pradas , J. Kerp