Latest in physics.ins-det

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Remote sensing of geomagnetic fields and atomic collisions in the mesosphereFeb 09 2018Magnetic-field sensing has contributed to the formulation of the plate-tectonics theory, the discovery and mapping of underground structures on Earth, and the study of magnetism in other planets. Filling the gap between space-based and near-Earth observation, ... More
Performance of a full scale prototype detector at the BR2 reactor for the SoLid experimentFeb 08 2018The SoLid collaboration has developed a new detector technology to detect electron anti-neutrinos at close proximity to the Belgian BR2 reactor at surface level. A 288$\,$kg prototype detector was deployed in 2015 and collected data during the operational ... More
Fabrication and characterization of pH responsive nanoprobes based on ion current rectificationFeb 08 2018In this study, we investigated the ionic current rectification of glass nanopipettes modified with bovine serum albumin - glutaraldehyde (BSA-GA) artificial membrane using solutions with various pHs. Ionic current rectification is a phenomenon that is ... More
Low current Hall Effect SensorFeb 08 2018Many modern electronic devices utilize linear Hall sensors to measure current and the magnetic field, as well as to perform switching and latching operations. Smartphones, laptops, and e-readers all work with very low (sub-mA) currents. To perform a switching ... More
Expression of Interest for Evolution of the Mu2e ExperimentFeb 07 2018We propose an evolution of the Mu2e experiment, called Mu2e-II, that would leverage advances in detector technology and utilize the increased proton intensity provided by the Fermilab PIP-II upgrade to improve the sensitivity for neutrinoless muon-to-electron ... More
Design study of random spectrometers for applications at optical frequenciesFeb 07 2018Compact spectrometers based on disordered planar waveguides exhibit a rather high resolution with a relatively small footprint as compared to conventional spectrometers. This is achieved by multiple scattering of light which - if properly engineered - ... More
On-line energy discrimination at DAQ front-end level on pixelated TOF-PET systemsFeb 06 2018Pixelated PET systems produce higher count rates as they integrate several detecting channels per detector module. An increased data flow from the detectors posses higher needs on the bandwidth requirements. We aim to optimize the bandwidth usage efficiency ... More
On-line energy discrimination at DAQ front-end level on pixelated TOF-PET systemsFeb 06 2018Feb 08 2018Pixelated PET systems produce higher count rates as they integrate several detecting channels per detector module. An increased data flow from the detectors posses higher needs on the bandwidth requirements. We aim to optimize the bandwidth usage efficiency ... More
Growth and characterization of a Li2Mg2(MoO4)3 scintillating bolometerFeb 06 2018Lithium magnesium molybdate (Li$_2$Mg$_2$(MoO$_4$)$_3$) crystals were grown by the low-thermal-gradient Czochralski method. Luminescence properties of the material (emission spectra, thermally stimulated luminescence, dependence of intensity on temperature, ... More
Radiation resistant LGAD designFeb 06 2018In this paper, we report on the radiation resistance of 50-micron thick LGAD detectors manufactured at the Fondazione Bruno Kessler employing several different doping combinations of the gain layer. LGAD detectors with gain layer doping of Boron, Boron ... More
Sensitivity of Proposed Search for Axion-induced Magnetic Field using Optically Pumped MagnetometersFeb 05 2018We investigate a search for the oscillating current induced by axion dark matter in an external magnetic field using optically pumped magnetometers (OPMs). This experiment is based upon the LC circuit axion detection concept of Sikivie, Sullivan, and ... More
Sensitivity of Proposed Search for Axion-induced Magnetic Field using Optically Pumped MagnetometersFeb 05 2018Feb 07 2018We investigate a search for the oscillating current induced by axion dark matter in an external magnetic field using optically pumped magnetometers (OPMs). This experiment is based upon the LC circuit axion detection concept of Sikivie, Sullivan, and ... More
Modal Noise Mitigation through Fiber Agitation for Fiber-fed Radial Velocity SpectrographsFeb 05 2018Optical fiber modal noise is a limiting factor for high precision spectroscopy signal-to-noise in the near-infrared and visible. Unabated, especially when using highly coherent light sources for wavelength calibration, modal noise can induce radial velocity ... More
3D Snapshot Microscopy of Extended ObjectsFeb 05 2018Feb 07 2018Volumetric biological imaging often involves compromising high temporal resolution at the expense of high spatial resolution when popular scanning methods are used to capture 3D information. We introduce an integrated experimental and image reconstruction ... More
Electroluminescence pulse shape and electron diffusion in liquid argon measured in a dual-phase TPCFeb 05 2018We report the measurement of the longitudinal diffusion constant in liquid argon with the DarkSide-50 dual-phase time projection chamber. The measurement is performed at drift electric fields of 100 V/cm, 150 V/cm, and 200 V/cm using high statistics $^{39}$Ar ... More
First Measurements of Beam Backgrounds at SuperKEKBFeb 05 2018The high design luminosity of the SuperKEKB electron-positron collider is expected to result in challenging levels of beam-induced backgrounds in the interaction region. Properly simulating and mitigating these backgrounds is critical to the success of ... More
Test beam measurement of the first prototype of the fast silicon pixel monolithic detector for the TT-PET projectFeb 05 2018Feb 06 2018The TT-PET collaboration is developing a PET scanner for small animals with 30 ps time-of-flight resolution and sub-millimetre 3D detection granularity. The sensitive element of the scanner is a monolithic silicon pixel detector based on state-of-the-art ... More
Investigation of modified ATLAS pixel implantations after irradiation with neutronsFeb 02 2018The innermost part of the tracking detector of the ATLAS experiment consists mainly of planar n$^+$-in-n silicon pixel sensors. During the phase-0 upgrade, the Insertable B-Layer (IBL) was installed closest to the beam pipe. Its pixels are arranged with ... More
Summary and Conclusions of the First DESY Test Beam User WorkshopFeb 01 2018On October 5/6, 2017, DESY hosted the first DESY Test Beam User Workshop [1] which took place in Hamburg. Fifty participants from different user communities, ranging from LHC (ALICE, ATLAS, CMS, LHCb) to FAIR (CBM, PANDA), DUNE, Belle-II, future linear ... More
Studying Antimatter Gravity with MuoniumFeb 01 2018Feb 07 2018The gravitational acceleration of antimatter, gbar, has yet to be directly measured; an unexpected outcome of its measurement could change our understanding of gravity, the universe, and the possibility of a fifth force. Three avenues are apparent for ... More
Optimization of the beam crossing angle at the ILC for e+e- and gamma-gamma collisionsJan 31 2018At this time, the design of the International Linear Collider (ILC) is optimized for e+e- collisions; the photon collider (gamma-gamma and gamma-electron) is considered as an option. Unexpected discoveries, such as the diphoton excess F(750 GeV) seen ... More
DQM4HEP - A Generic Online Monitor for Particle Physics ExperimentsJan 31 2018There is currently a lot of activity in R\&D for future collider experiments. Multiple detector prototypes are being tested, each one with slightly different requirements regarding the format of the data to be analysed. This has generated a variety of ... More
Latest developments on the highly granular Silicon-Tungsten Electromagnetic Calorimeter technological prototype for the International Large DetectorJan 31 2018High precision physics at future colliders requires unprecedented highly granular calorimeters for the application of the Particle Flow (PF) algorithm. The physical proof of concept was given in the previous campaign of beam tests of physic prototypes ... More
First Limit on the Direct Detection of Lightly Ionizing Particles for Electric Charge as Low as $e$/1000 with the \textsc{Majorana Demonstrator}Jan 30 2018Feb 01 2018The \textsc{Majorana Demonstrator} is an ultra low-background experiment searching for neutrinoless double-beta decay in $^{76}$Ge. The heavily shielded array of germanium detectors, placed nearly a mile underground at the Sanford Underground Research ... More
Novel circuit design for high-impedance and non-local electrical measurements of two-dimensional materialsJan 30 2018Two-dimensional materials offer a novel platform for the development of future quantum technologies. However, the electrical characterisation of topological insulating states, non-local resistance and bandgap tuning in atomically-thin materials, can be ... More
The Mu2e crystal calorimeterJan 30 2018The Mu2e Experiment at Fermilab will search for coherent, neutrino-less conversion of negative muons into electrons in the field of an Aluminum nucleus, $\mu^- + Al \to e^- +Al$. Data collection start is planned for the end of 2021. The dynamics of such ... More
A 3D-printed alkali metal dispenserJan 29 2018We demonstrate and characterize a source of Li atoms made from direct metal laser sintered titanium. The source's outgassing rate is measured to be $5 \,(2)\cdot 10^{-7}$\,$\rm{Pa}~ \rm{L}~ \rm{s}^{-1}$ at a temperature $T=330\,^\circ$C, which optimizes ... More
First Demonstration of a Pixelated Charge Readout for Single-Phase Liquid Argon Time Projection ChambersJan 26 2018Liquid Argon Time Projection Chambers (LArTPCs) have been selected for the future long-baseline Deep Underground Neutrino Experiment (DUNE). To allow LArTPCs to operate in the high-multiplicity near detector environment of DUNE, a new charge readout technology ... More
Charge reconstruction in large-area photomultipliersJan 26 2018Large-area PhotoMultiplier Tubes (PMT) allow to efficiently instrument Liquid Scintillator (LS) neutrino detectors, where large target masses are pivotal to compensate for neutrinos' extremely elusive nature. Depending on the detector light yield, several ... More
A Radiation Tolerant Light Pulser for Particle Physics ApplicationsJan 25 2018A light emitting diode (LED) pulser has been developed that can be used for tests or calibration of timing and amplitude sensitivity of particle physics detectors. A comparative study is performed on the components and pulser output characteristics before ... More
Al/Ti/Al phonon-mediated KIDs for UV-VIS light detectionJan 25 2018The development of wide-area cryogenic light detectors with baseline energy resolution lower than 20 eV RMS is essential for next generation bolometric experiments searching for rare interactions. Indeed the simultaneous readout of the light and heat ... More
Cavity enhanced DUV laser for two-photon cooling of atomic hydrogenJan 25 2018We demonstrate a \SI{650}{\mW} \SI{243}{\nm} continuous-wave laser coupled to a linear optical enhancement cavity. The enhancement cavity can maintain $>$\SI{30}{\W} of intracavity power for \SI{1}{\hour} of continuous operation without degradation. This ... More
Polarisation in Spin-Echo Experiments: Multi-point and Lock-in MeasurementsJan 24 2018Spin-echo instruments are typically used to measure diffusive processes and the dynamics and motion in samples on ps and ns timescales. A key aspect of the spin-echo technique is to determine the polarisation of a particle beam. We present two methods ... More
Response Functions for Detectors in Cosmic Ray Neutron SensingJan 24 2018Cosmic-Ray Neutron Sensing (CRNS) is a novel technique for determining environmental water content by measuring albedo neutrons in the epithermal to fast energy range with moderated neutron detectors. We have investigated the response function of stationary ... More
First scintillating bolometer tests of a CLYMENE R\&D on Li$_2$MoO$_4$ scintillators towards a large-scale double-beta decay experimentJan 24 2018A new R&D on lithium molybdate scintillators has begun within a project CLYMENE (Czochralski growth of Li$_2$MoO$_4$ crYstals for the scintillating boloMeters used in the rare EveNts sEarches). One of the main goals of the CLYMENE is a realization of ... More
A Generalized Muon Trajectory Estimation Algorithm with Energy Loss for Application to Muon TomographyJan 23 2018This work presents a generalized muon trajectory estimation (GMTE) algorithm to estimate the path of a muon in either uniform or nonuniform media. The use of cosmic ray muons in nuclear nonproliferation and safeguards verification applications has recently ... More
Study and mitigation of spurious electron emission from cathodic wires in noble liquid time projection chambersJan 22 2018Noble liquid radiation detectors have long been afflicted by spurious electron emission from their cathodic electrodes. This phenomenon must be understood and mitigated in the next generation of liquid xenon (LXe) experiments searching for WIMP dark matter ... More
Symmetry Breaking in Haloscope Microwave CavitiesJan 22 2018Axion haloscope detectors use microwave cavities permeated by a magnetic field to resonate photons that are converted from axions due to the inverse Primakoff effect. The sensitivity of a detector is proportional to the form factor of the cavity's search ... More
Measurement of the the liquid argon energy response to nuclear and electronic recoilsJan 20 2018A liquid argon time projection chamber, constructed for the Argon Response to Ionization and Scintillation (ARIS) experiment, has been exposed to the highly collimated and quasi-monoenergetic LICORNE neutron beam at the Institute de Physique Nuclaire ... More
A single-photon detector with high efficiency and sub-10ps time resolutionJan 19 2018The observation of fast physical dynamics using optical techniques currently relies on indirect methods, such as pump-probe measurements. One reason for this is the lack of an efficient detector with high time resolution. Single-photon detectors with ... More
Simulations and Image Reconstruction for the High Resolution CaLIPSO PET Scanner for Brain and Preclinical StudiesJan 19 2018The foreseen CaLIPSO Positron Emission Tomography (PET) scanner is expected to yield simultaneously a fine image resolution, about 1 mm$^3$, and a high contrast. In this paper we present results of simulations for the full CaLIPSO PET scanner with a "cube" ... More
VOXES: a high precision X-ray spectrometer for diffused sources with HAPG crystals in the 2-20 keV rangeJan 19 2018Bragg spectroscopy is one of the best established experimental methods for high energy resolution X-ray measurements and has been widely used in several fields, going from fundamental physics to quantum mechanics tests, synchrotron radiation and X-FEL ... More
Probing the limits of the rigid-intensity-shift model in differential phase contrast scanning transmission electron microscopyJan 19 2018The rigid-intensity-shift model of differential phase contrast scanning transmission electron microscopy (DPC-STEM) imaging assumes that the phase gradient imposed on the probe by the sample causes the diffraction pattern intensity to shift rigidly by ... More
Testbeam performance of a shashlik calorimeter with fine-grained longitudinal segmentationJan 18 2018An iron- plastic-scintillator shashlik calorimeter with a 4.3 $X_0$ longitudinal segmentation was tested in November 2016 at the CERN East Area facility with charged particles up to 5 GeV. The performance of this detector in terms of electron energy resolution, ... More
On Determining Dead Layer and Detector Thicknesses for a Position-Sensitive Silicon DetectorJan 18 2018In this work, two particular properties of the position-sensitive, thick silicon detectors (known as the "E" detectors) in the High Resolution Array (HiRA) are investigated: the thickness of the dead layer on the front of the detector, and the overall ... More
Scattered neutron background in thermal neutron detectorsJan 17 2018Inelastic neutron scattering instruments require very low background; therefore the proper shielding for suppressing the scattered neutron background, both from elastic and inelastic scattering is essential. The detailed understanding of the background ... More
Study of Rare Nuclear Processes with CUOREJan 16 2018Jan 17 2018TeO2 bolometers have been used for many years to search for neutrinoless double beta decay in 130-Te. CUORE, a tonne-scale TeO2 detector array, recently published the most sensitive limit on the half-life, $T_{1/2}^{0\nu} > 1.5 \times 10^{25}\,$yr, which ... More
On the performance of large monolithic LaCl3(Ce) crystals coupled to pixelated silicon photosensorsJan 15 2018We investigate the performance of large area radiation detectors, with high energy- and spatial-resolution, intended for the development of a Total Energy Detector with gamma-ray imaging capability, so-called i-TED. This new development aims for an enhancement ... More
Direct measurement of neutrons induced in lead by cosmic muons at a shallow underground siteJan 15 2018Neutron production in lead by cosmic muons has been studied with a Gadolinium doped liquid scintillator detector installed in the T\"ubingen shallow underground laboratory, next to the Muon-Induced Neutron Indirect Detection EXperiment used for muon tagging. ... More
Capacitive microwave sensor for toxic vapor detection in an atmospheric environmentJan 15 2018-This paper presents an inkjet printing capacitive microwave sensor for toxic vapor detection. The designed sensors were presented and fabricated with success. The experiments show sensitivity to ethanol vapor according to the S parameters. It is equal ... More
The design of the MEG II experimentJan 15 2018The MEG experiment, designed to search for the mu+->e+ gamma decay at a 10^-13 sensitivity level, completed data taking in 2013. In order to increase the sensitivity reach of the experiment by an order of magnitude to the level of 6 x 10-14 for the branching ... More
Neutrinoless Double Beta Decay with $^{82}$SeF$_6$ and Direct Ion ImagingJan 14 2018Jan 25 2018We present a new neutrinoless double beta decay concept: the high pressure selenium hexafluoride gas time projection chamber. Combining techniques pioneered in high pressure xenon gas such as topological discrimination, with the high Q-value afforded ... More
The HeRSCheL detector: high-rapidity shower counters for LHCbJan 12 2018The HeRSCheL detector consists of a set of scintillating counters, designed to increase the coverage of the LHCb experiment in the high-rapidity regions on either side of the main spectrometer. The new detector improves the capabilities of LHCb for studies ... More
Gamma-ray imaging system for real-time measurements in nuclear waste characterisationJan 12 2018A compact, portable and large field-of-view gamma camera to identify, locate and quantify gamma-ray emitting radioisotopes in real-time has been developed. The device delivers spectroscopic and imaging capabilities, which allow one to use it in a variety ... More
Performance of new silica aerogels in a threshold Cerenkov counterJan 12 2018New highly transparent, hydrophobic silica aerogels with refractive indices of 1.01 to 1.07 have been produced by Aspen Aerogels, Inc., and select tiles have been tested using an electron beam at the DESY, Hamburg facility. A diffusively-reflective threshold ... More
An innovative technique for the investigation of the 4-fold forbidden beta-decay of $^{50}$VJan 11 2018Jan 22 2018For the first time a Vanadium-based crystal was operated as cryogenic particle detector. The scintillating low temperature calorimetric technique was used for the characterization of a 22 g YVO$_4$ crystal aiming at the investigation of the 4-fold forbidden ... More
Gain characteristics of a 100 micrometer thick GEM in Krypton-CO2 mixturesJan 11 2018The operation of a Micropattern Gaseous Detector (MPGD) comprising a cascade of two non-standard Gas Electron Multipliers (GEM) made from a 100 micrometer kapton foil was evaluated in pure krypton and in krypton-CO2 mixtures. The final avalanche charge ... More
Charge collection properties of irradiated depleted CMOS pixel test structuresJan 11 2018Jan 22 2018Edge-TCT and charge collection measurements with passive test structures made in LFoundry 150 nm CMOS process on p-type substrate with initial resistivity of over 3 k$\Omega$cm are presented. Measurements were made before and after irradiation with reactor ... More
Topological engineering of interfacial optical Tamm states for highly-sensitive near-singular-phase optical detectionJan 11 2018We developed planar multilayered photonic-plasmonic structures, which support topologically protected optical states on the interface between metal and dielectric materials, known as optical Tamm states. Coupling of incident light to the Tamm states can ... More
Improved search for two-neutrino double electron capture on $^{124}$Xe and $^{126}$Xe using particle identification in XMASS-IJan 10 2018We conducted an improved search for the simultaneous capture of two $K$-shell electrons on the $^{124}$Xe and $^{126}$Xe nuclei with emission of two neutrinos using 800.0 days of data from the XMASS-I detector. A novel method to discriminate $\gamma$-ray/$X$-ray ... More
Design, status and perspective of the Mu2e crystal calorimeterJan 09 2018The Mu2e experiment at Fermilab will search for the charged lepton flavor violating process of neutrino-less $\mu \to e$ coherent conversion in the field of an aluminum nucleus. Mu2e will reach a single event sensitivity of about $2.5\cdot 10^{-17}$ that ... More
Gamma Radiation Spectra of 1200 MeV Electrons in Thick Beryllium, Silicon, and Tungsten Single CrystalsJan 09 2018Gamma radiation spectra of 1200 MeV electrons in the single crystals of the beryllium 1.2 mm thick, silicon 1.5 mm and 15.0 mm thick and tungsten 1.18 mm thick along of the crystallographic axes were measured. Also spectral-angular distributions of gamma ... More
Construction and Performance of the Barrel Electromagnetic Calorimeter for the GlueX ExperimentJan 09 2018The barrel calorimeter is part of the new spectrometer installed in Hall D at Jefferson Lab for the GlueX experiment. The calorimeter was installed in 2013, commissioned in 2014 and has been operating routinely since early 2015. The detector configuration, ... More
Characterisation of novel thin n-in-p planar pixel modules for the ATLAS Inner Tracker upgradeJan 09 2018In view of the high luminosity phase of the LHC (HL-LHC) to start operation around 2026, a major upgrade of the tracker system for the ATLAS experiment is in preparation. The expected neutron equivalent fluence of up to 2.4 * 1e16 1 MeV neq./cm2 at the ... More
Precision determination of absolute neutron fluxJan 08 2018A technique for establishing the total neutron rate of a highly-collimated monochromatic cold neutron beam was demonstrated using a method of an alpha-gamma counter. The method involves only the counting of measured rates and is independent of neutron ... More
High rate tests of the photon detection system for the LHCb RICH UpgradeJan 08 2018The photon detection system for the LHCb RICH Upgrade consists of an array of multianode photomultiplier tubes (MaPMTs) read out by custom-built modular electronics. The behaviour of the whole chain was studied at CERN using a pulsed laser. Threshold ... More
The Mu2e undoped CsI crystal calorimeterJan 07 2018The Mu2e experiment at Fermilab will search for Charged Lepton Flavor Violating conversion of a muon to an electron in an atomic field. The Mu2e detector is composed of a tracker, an electromagnetic calorimeter and an external system, surrounding the ... More
Performance study of SKIROC2/A ASIC for ILD Si-W ECALJan 06 2018The ILD Si-W ECAL is a sampling calorimeter with tungsten absorber and highly segmented silicon layers for the International Large Detector (ILD), one of the two detector concepts for the International Linear Collider. SKIROC2 is an ASIC for the ILD Si-WECAL. ... More
Response of photomultiplier tubes to xenon scintillation lightJan 05 2018We present the precision calibration of 35 Hamamatsu R11410-22 photomultiplier tubes (PMTs) with xenon scintillation light centred near 175 nm. This particular PMT variant was developed specifically for the LUX-ZEPLIN (LZ) dark matter experiment. A room-temperature ... More
Weighted Delta-Tracking with ScatteringJan 02 2018In this work, we expand the weighted delta-tracking routine to include a treatment for scattering. The weighted delta-tracking routine adds survival biasing to normal delta-tracking, improving overall problem figure of merit. In the original formulation ... More
Measurements of charging-up processes in THGEM-based particle detectorsJan 02 2018Jan 09 2018The time-dependent gain variation of detectors incorporating Thick Gas Electron Multipliers (THGEM) electrodes was studied in the context of charging-up processes of the electrode's insulating surfaces. An experimental study was performed to examine model-simulation ... More
Optical vector network analysis of ultra-narrow transitions in $^{166}$Er$^{3+}$:$^7$LiYF$_4$Jan 01 2018We present optical vector network analysis (OVNA) of an isotopically purified $^{166}$Er$^{3+}$:$^7$LiYF$_4$ crystal. The OVNA method is based on generation and detection of modulated optical sideband by using a radio-frequency vector network analyzer. ... More
Two-frequency operation of a Paul trap to optimise confinement of two species of ionsJan 01 2018We describe the operation of an electrodynamic ion trap in which the electric quadrupole field oscillates at two frequencies. This mode of operation allows simultaneous tight confinement of ions with extremely different charge-to-mass ratios, e.g., singly ... More
PFA Oriented ECAL Optimization for the CEPCDec 27 2017The design and optimization of the Electromagnetic Calorimeter (ECAL) are crucial for the Circular Electron Positron Collider (CEPC) project, a proposed future Higgs/Z factory. Following the reference design of the International Large Detector (ILD), ... More
A multi-isotope $0\nu2β$ bolometric experimentDec 22 2017There are valuable arguments to perform neutrinoless double beta ($0\nu2\beta$) decay experiments with several nuclei: the uncertainty of nuclear-matrix-element calculations; the possibility to test these calculations by using the ratio of the measured ... More
Test beam measurement of ams H35 HV-CMOS capacitively coupled pixel sensor prototypes with high-resistivity substrateDec 22 2017In the context of the studies of the ATLAS High Luminosity LHC programme, radiation tolerant pixel detectors in CMOS technologies are investigated. To evaluate the effects of substrate resistivity on CMOS sensor performance, the H35DEMO demonstrator, ... More
A Review and Outlook for the Removal of Radon-Generated Po-210 Surface ContaminationDec 21 2017The next generation low-background detectors operating deep underground aim for unprecedented low levels of radioactive backgrounds. The deposition and presence of radon progeny on detector surfaces is an added source of energetic background events. In ... More
MARTA: A high-energy cosmic-ray detector concept with high-accuracy muon measurementDec 20 2017A new concept for the direct measurement of muons in air showers is presented. The concept is based on resistive plate chambers (RPCs), which can directly measure muons with very good space and time resolution. The muon detector is shielded by placing ... More
Fundamental physics activities with pulsed neutron at J-PARC(BL05)Dec 18 2017Jan 25 2018"Neutron Optics and Physics (NOP/ BL05)" at MLF in J-PARC is a beamline for studies of fundamental physics. The beamline is divided into three branches so that different experiments can be performed in parallel. These beam branches are being used to develop ... More
A Search for deviations from the inverse square law of gravity at nm range using a pulsed neutron beamDec 08 2017We describe an experimental search for deviations from the inverse square law of gravity at the nanometer length scale using neutron scattering from noble gases on a pulsed slow neutron beamline. By measuring the neutron momentum transfer ($q$) dependence ... More
Characterization of Germanium Detectors for the Measurement of the Angular Distribution of Prompt gamma-rays at the ANNRI in the MLF of the J-PARCDec 07 2017In this study, the germanium detector assembly, installed at the Accurate Neutron-Nuclear Reaction measurement Instruments (ANNRI) in the Material and Life Science Facility (MLF) operated by the Japan Proton Accelerator Research Complex (J-PARC), has ... More
Precise Neutron Lifetime Measurement with a Solenoidal CoilDec 05 2017Jan 13 2018The neutron lifetime, $\tau$ = 880.2 $\pm$ 1.0 sec , is an important parameter for particle physics and cosmology. There is, however, an 8.4 sec (4.0$\,\sigma$) deviation between the measured value of the neutron lifetime using two methods : one method ... More
Performance Evaluation of the Analogue Front-End and ADC Prototypes for the Gotthard-II DevelopmentNov 23 2017Jan 03 2018Gotthard-II is a silicon microstrip detector developed for the European X-ray Free-Electron Laser (XFEL.EU). Its potential scientific applications include X-ray absorption/emission spectroscopy, hard X-ray high resolution single-shot spectrometry (HiREX), ... More
Towards Gotthard-II: Development of A Silicon Microstrip Detector for the European X-ray Free-Electron LaserNov 20 2017Gotthard-II is a 1-D microstrip detector specifically developed for the European X-ray Free-Electron Laser. It will not only be used in energy dispersive experiments but also as a beam diagnostic tool with additional logic to generate veto signals for ... More
Demonstration of Single Barium Ion Sensitivity for Neutrinoless Double Beta Decay using Single Molecule Fluorescence ImagingNov 13 2017Feb 06 2018A new method to tag the barium daughter in the double beta decay of $^{136}$Xe is reported. Using the technique of single molecule fluorescent imaging (SMFI), individual barium dication (Ba$^{++}$) resolution at a transparent scanning surface has been ... More
Small animal whole body imaging with metamaterial-inspired RF coilNov 10 2017Preclinical magnetic resonance imaging often requires the entire body of an animal to be imaged with sufficient quality. This is usually performed by combining regions scanned with small coils with high sensitivity or long scans using large coils with ... More
Addressing Neutrino Mixing Schemes with DUNE and T2HKNov 06 2017We consider schemes of neutrino mixing arising within the discrete symmetry approach to the well-known flavour problem. We concentrate on $3\nu$ mixing schemes in which the cosine of the Dirac CP violation phase $\delta_\mathrm{CP}$ satisfies a sum rule ... More
Discovery of a big void in Khufu's Pyramid by observation of cosmic-ray muonsNov 05 2017Nov 21 2017The Great Pyramid or Khufu's Pyramid was built on the Giza Plateau (Egypt) during the IVth dynasty by the pharaoh Khufu (Cheops), who reigned from 2509 to 2483 BC. Despite being one of the oldest and largest monuments on Earth, there is no consensus about ... More
In-flight energy calibration of the space-borne Compton polarimeter POLAROct 24 2017Dec 18 2017POLAR is a compact wide-field space-borne detector for precise measurements of the linear polarization of hard X-rays emitted by transient sources in the energy range from 50 keV to 500 keV. It consists of a 40$\times$40 array of plastic scintillator ... More
Development of novel plastic scintillators based on polyvinyltoluene for the hybrid J-PET/MR tomographOct 23 2017A novel plastic scintillator, referred to as J-PET scintillator, has been developed for the application in the digital positron emission tomography (PET). The novelty of the concept lies in application of the 2-(4-styrylphenyl)benzoxazole as a wavelength ... More
The status of KAGRA underground cryogenic gravitational wave telescopeOct 13 2017KAGRA is a 3-km interferometric gravitational wave telescope located in the Kamioka mine in Japan. It is the first km-class gravitational wave telescope constructed underground to reduce seismic noise, and the first km-class telescope to use cryogenic ... More
Single Photon Detection Using Optical Heterodyne InterferometryOct 11 2017Oct 24 2017We detail and explore the application of heterodyne interferometry for a weak field coherent detection scheme. Planned use in a current dark matter search experiment sets specification goals to accurately measure fields on the order of 1 photon per week. ... More
New Search for Mirror Neutrons at HFIROct 02 2017Oct 25 2017The theory of mirror matter predicts a hidden sector made up of a copy of the Standard Model particles and interactions but with opposite parity. If mirror matter interacts with ordinary matter, there could be experimentally accessible implications in ... More
Autonomous RPCs for a Cosmic Ray ground arraySep 27 2017We report on the behaviour of Resistive Plate Chambers (RPC) developed for muon detection in ultra-high energy cosmic ray (UHECR) experiments. The RPCs were developed for the MARTA project and were tested on field conditions. These RPCs cover an area ... More
Performance of irradiated thin n-in-p planar pixel sensors for the ATLAS Inner Tracker upgradeSep 25 2017The ATLAS collaboration will replace its tracking detector with new all silicon pixel and strip systems. This will allow to cope with the higher radiation and occupancy levels expected after the 5-fold increase in the luminosity of the LHC accelerator ... More
Super-resolution imaging of quantum emitters in layered materialsSep 21 2017Layered van der Waals materials are emerging as compelling two-dimensional (2D) platforms for studies of nanophotonics, polaritonics, valleytronics and spintronics, and have the potential to transform applications in sensing, imaging and quantum information ... More
Photoelectron Yields of Scintillation Counters with Embedded Wavelength-Shifting Fibers Read Out With Silicon PhotomultipliersSep 19 2017Feb 05 2018Photoelectron yields of extruded scintillation counters with titanium dioxide coating and embedded wavelength shifting fibers read out by silicon photomultipliers have been measured at the Fermilab Test Beam Facility using 120\,GeV protons. The yields ... More
Contactless and absolute linear displacement detection based upon 3D printed magnets combined with passive radio-frequency identificationSep 13 2017Within this work a passive and wireless magnetic sensor, to monitor linear displacements is proposed. We exploit recent advances in 3D printing and fabricate a polymer bonded magnet with a spatially linear magnetic field component corresponding to the ... More
PEN as self-vetoing structural MaterialAug 30 2017Polyethylene Naphtalate (PEN) is a mechanically very favorable polymer. Earlier it was found that thin foils made from PEN can have very high radio-purity compared to other commercially available foils. In fact, PEN is already in use for low background ... More