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Direct comparison of high voltage breakdown measurements in liquid argon and liquid xenonAug 19 2019As noble liquid time projection chambers grow in size their high voltage requirements increase, and detailed, reproducible studies of dielectric breakdown and the onset of electroluminescence are needed to inform their design. The Xenon Breakdown Apparatus ... More
Predictive model of persistence in H2RG detectorsAug 18 2019Infrared hybridized detectors are widely used in astronomy, and their performance can be degraded by image persistence. This results in remnant images that can persist in the detector for many hours, contaminating any subsequent low-background observations. ... More
Stacking transition in rhombohedral graphiteAug 17 2019Few layer graphene (FLG) has been recently intensively investigated for its variable electronic properties defined by a local atomic arrangement. While the most natural layers arrangement in FLG is ABA (Bernal) stacking, a metastable ABC (rhombohedral) ... More
Triple GEM performance in magnetic fieldAug 17 2019Performance of triple GEM prototypes in strong magnetic field has been evaluated bymeans of a muon beam at the H4 line of the SPS test area at CERN. Data have been reconstructedand analyzed offline with two reconstruction methods: the charge centroid ... More
Coherent interaction between free electrons and cavity photonsAug 16 2019Since its inception, research of cavity quantum electrodynamics (CQED) has extended our understanding of light-matter interactions and our ability to utilize them. Thus far, all the work in this field has been focused on light interacting with bound electron ... More
Multimode Fiber Coupled Superconducting Nanowire Single Photon Detectors with High Detection Efficiency and Time ResolutionAug 16 2019In the past decade superconducting nanowire single photon detectors (SNSPDs) have gradually become an indispensable part of any demanding quantum optics experiment. Until now, most SNSPDs are coupled to single-mode fibers. SNSPDs coupled to multimode ... More
Measured Effectiveness of Deep N-well Substrate Isolation in a 65nm Pixel Readout Chip PrototypeAug 16 2019The same charge sensitive preamplifier and discriminator circuit with different isolation strategies has been tested to compare the isolation of both analog and digital circuits from the substrate of a 65nm bulk CMOS process to the isolation of only digital ... More
Meta-study of laser power calibrations ranging 20 orders of magnitude with traceability to the kilogramAug 16 2019Laser power metrology at the National Institute of Standards and Technology (NIST) ranges 20 orders of magnitude from photon-counting (1000 photons/s) to 100 kW (1e23 photons/s at a wavelength of 1070 nm). As a part of routine practices, we regularly ... More
3D Gamma-ray and Neutron Mapping in Real-Time with the Localization and Mapping Platform from Unmanned Aerial Systems and Man-Portable ConfigurationsAug 16 2019Nuclear Scene Data Fusion (SDF), implemented in the Localization and Mapping Platform (LAMP) fuses three-dimensional (3D), real-time volumetric reconstructions of radiation sources with contextual information (e.g. LIDAR, camera, etc.) derived from the ... More
Design and experimental demonstration of a laser modulation system for future gravitational-wave detectorsAug 16 2019Detuning the signal-recycling cavity length from a cavity resonance significantly improves the quantum noise beyond the standard quantum limit, while there is no km-scale gravitational-wave detector successfully implemented the technique. The detuning ... More
Investigation of the Power Consumption of the PETsys TOFPET2 ASICAug 16 2019In state-of-the-art positron emission (PET) tomography systems, application-specific integrated circuits (ASICs)are commonly used to precisely digitize the signals of analog silicon photo-multipliers (SiPMs). However, when operating PET electronics in ... More
Muon Identification Using Deep Neural Networks with the Muon Telescope Detector at STARAug 15 2019The installation of the muon telescope detector opened new possibilities for studying dimuon production at STAR. However, backgrounds from hadron punch-through and weak decays of pions and kaons make the identification of primary muons challenging. In ... More
Simple, Reversible Gradient Seebeck Coefficient Measurement System for 300-600KAug 15 2019An in-house Seebeck coefficient measurement system has been developed which can measure the thermoemf (Seebeck coefficient) of the sample, under large temperature difference, in the temperature range 300-600 K. Unlike majority of reported instrumental ... More
The inter-cluster time synchronization systems within the Baikal-GVD detectorAug 15 2019Currently in Lake Baikal, a new generation neutrino telescope is being deployed: the deep underwater Cherenkov detector of a cubic-kilometer scale Baikal-GVD. Completion of the first stage of the telescope construction is planned for 2021 with the implementation ... More
Enhancing the speed and sensitivity of a nonlinear optical sensor with noiseAug 15 2019We demonstrate how noise can be turned into an advantage for optical sensing using a nonlinear cavity. The cavity is driven by a continuous wave laser into the regime of optical bistability. Due to the influence of fluctuations, the cavity randomly switches ... More
The Baikal-GVD detector calibrationAug 15 2019In April 2019, the Baikal-GVD collaboration finished the installation of the fourth and fifth clusters of the neutrino telescope Baikal-GVD. Momentarily, 1440 Optical Modules (OM) are installed in the largest and deepest freshwater lake in the world, ... More
Three-dimensional Near-field Anatomy Reveals Geometric Resonance of Hyperbolic Phonon Polariton Micro-StructuresAug 14 2019Standing waves of defined momentum arise when the propagating wave is confined by finite boundaries of suitable dimensions and symmetry. Phonon polaritons, often supported by two-dimensional materials, are waves formed from hybridization of collective ... More
Radiation shielding composites using thermoplastic polymers mouldable at low temperatureAug 14 2019The formulation of a low temperature thermoplastic mouldable radiation shielding composite is given. The material is based on a low temperature melting polymer filled with lead shot. It can be easily moulded to shape after immersing in hot water, or by ... More
J-PARC Neutrino Beamline Upgrade Technical Design ReportAug 14 2019In this document, technical details of the upgrade plan of the J-PARC neutrino beamline for the extension of the T2K experiment are described. T2K has proposed to accumulate data corresponding to $2\times{}10^{22}$ protons-on-target in the next decade, ... More
Nanodiamond photocathodes for MPGD-based single photon detectors at future EICAug 14 2019The design of a Ring Imaging CHerenkov (RICH) detector for the identification of high momentum particles at the future Electron Ion Collider (EIC) is extremely challenging by using current technology. Compact collider setups impose to construct RICH with ... More
A modular mini-pad photon detector prototype for RICH application at the Electron Ion ColliderAug 14 2019Experiments at the future Electron Ion Collider require excellent hadron identification in a broad momentum range, in harsh conditions. A RICH capable to fulfill the PID requirements of the EIC could use MPGD-based photon detectors with solid photocathodes ... More
First demonstration of a bubble-assisted Liquid Hole Multiplier operation in liquid argonAug 14 2019We demonstrate, for the time, the operation of a bubble-assisted Liquid Hole Multiplier (LHM) in liquid argon. The LHM, sensitive to both radiation-induced ionization electrons and primary scintillation photons, consists of a perforated electrode immersed ... More
Signal Development for Saturated Ultrafast Sensors with Impact Ionization GainAug 14 2019A closed-form approximate expression is presented for the short time-frame development of silicon diode sensor signals in the context of high frame-rate detection of incident X-ray fluxes, in the limit that the X-ray absorption profile generates a longitudinally-uniform ... More
Study of Particle Multiplicity of Cosmic Ray Events using 2m$\times$2m Resistive Plate Chamber Stack at IICHEP-MaduraiAug 13 2019An experimental setup consisting of 12 layers of glass Resistive Plate Chambers (RPCs) of size 2m$\times$2m has been built at IICHEP-Madurai to study the long term performance and stability of RPCs produced on large scale in Industry. In this study, the ... More
In-Silico Optimisation of Tileable SiPM Based Monolithic Scintillator Detectors for SPECT ApplicationsAug 13 2019Over the last decade one of the most significant technological advances made in the of field radiation detectors for nuclear medicine was the development of Silicon Photomultipler (SiPM) sensors. At present a only small number of SiPM based radiation ... More
Response to 'Room Temperature, Quantum-Limited THz Heterodyne Detection? Not Yet'Aug 13 2019This commentary is written in response to arXiv:1907.13198. In this article, Zmuidzinas et al. raise questions about the results reported by our group in Nature Astronomy (DOI: 10.1038/s41550-019-0828-6) regarding our experimental methodology and our ... More
Properties of the Center of Gravity as an Algorithm for Position MeasurementsAug 13 2019The center of gravity $x_{g}= \sum_{i}E_{i} x_{i}/\sum_{i} E_{i}$ as an algorithm for position measurements is carefully analyzed. Many mathematical consequences of discretization are extracted. The origin of the systematic error of the algorithm is shown ... More
Positron Annihilation Lifetime Spectroscopy Using Fast Scintillators and Digital ElectronicsAug 12 2019Positron Annihilation Lifetime Spectroscopy (PALS) is a non-destructive radiological technique widely used in material science studies. PALS typically relies on an analog coincidence measurement setup and allows the estimate of the positron lifetime in ... More
Subsystem Development for the All-Sky Medium Energy Gamma-ray Observatory (AMEGO) prototypeAug 12 2019The gamma-ray sky from several hundred keV to $\sim$ a hundred MeV has remained largely unexplored due to the challenging nature of detecting gamma rays in this regime. At lower energies, Compton scattering is the dominant interaction process whereas ... More
Measurement of the scintillation and ionization response of liquid xenon at MeV energies in the EXO-200 experimentAug 12 2019Liquid xenon (LXe) is employed in a number of current and future detectors for rare event searches. We use the EXO-200 experimental data to measure the absolute scintillation and ionization yields generated by $\gamma$ interactions from $^{228}$Th (2615 ... More
Superconductor-ferromagnet tunnel junction thermoelectric bolometer and calorimeter with a SQUID readoutAug 12 2019Superconductor-ferromagnet thermoelectric detector (SFTED) is a novel ultrasensitive radiation detector based on the giant thermoelectric effect in superconductor-ferromagnet tunnel junctions. This type of detector can be operated without the need of ... More
A Study of NaI(Tl) crystal Encapsulation using Organic scintillators for the Dark Matter SearchAug 12 2019Scintillating NaI(Tl) crystals are used for various rare decay experiments, such as dark matter searches. The hygroscopicity of NaI(Tl) crystal makes the construction of crystal detectors in these experiments challenging and requires a tight encapsulation ... More
Plasmonic Heterodyne Spectrometry for Resolving the Spectral Signatures of Ammonia over a 1-5 THz Frequency RangeAug 12 2019We present a heterodyne terahertz spectrometry platform based on plasmonic photomixing, which enables the resolution of narrow spectral signatures of gases over a broad terahertz frequency range. This plasmonic heterodyne spectrometer replaces the terahertz ... More
Using a 3D printer for 2D beam profile measurements in proton radiotherapyAug 10 2019We have used an inexpensive 3D printer mounting an inexpensive pre-irradiated silicon diode to measure the 2D dose distribution of a small (approximately 10mm FWHM) proton beam. z was measured with high resolution whereas x was changed on a 2mm grid for ... More
Designing a new spatial light modulator for holographic photostimulationAug 10 2019Driven by the demands for speed and field of view in the holographic photostimulation community, we designed, built, and tested a liquid crystal on silicon (LCoS) spatial light modulator (SLM) with a 1536x1536 square pixel array and high-voltage LC drive. ... More
Target Considerations for a Very Cold Neutron SourceAug 09 2019A proposed Very Cold Neutron Source (VCNS) would operate with 4 ms long pulses at 5 Hz and 1 GeV. The energy per pulse would be 300 kJ, much higher than the Spallation Neutron Source (33 kJ/pulse) or the present IPNS (0.3 kJ/pulse), and the peak power ... More
Novel Opaque Scintillator for Neutrino DetectionAug 09 2019There is rising interest in organic scintillators with low scattering length for future neutrino detectors. Therefore, a new scintillator system was developed based on admixtures of paraffin wax in linear alkyl benzene. The transparency and viscosity ... More
GAPS: Searching for Dark Matter using Antinuclei in Cosmic RaysAug 08 2019The General Antiparticle Spectrometer (GAPS) will carry out a sensitive dark matter search by measuring low-energy ($\mathrm{E} < 0.25 \mathrm{GeV/nucleon}$) cosmic ray antinuclei. The primary targets are low-energy antideuterons produced in the annihilation ... More
Experimental Determination of Proton Hardness Factors at Several Irradiation FacilitiesAug 08 2019The scheduled High Luminosity upgrade of the CERN Large Hadron Collider presents new challenges in terms of radiation hardness. As a consequence, campaigns to qualify the radiation hardness of detector sensors and components are undertaken worldwide. ... More
Neutrino Physics with an Opaque DetectorAug 07 2019The discovery of the neutrino by Reines & Cowan in 1956 revolutionised our understanding of the universe at its most fundamental level and provided a new probe with which to explore the cosmos. Furthermore, it laid the groundwork for one of the most successful ... More
Nanoscale imaging of equilibrium quantum Hall edge currents and of the magnetic monopole response in grapheneAug 07 2019The recently predicted topological magnetoelectric effect and the response to an electric charge that mimics an induced mirror magnetic monopole are fundamental attributes of topological states of matter with broken time reversal symmetry. Using a SQUID-on-tip, ... More
Detecting and Studying High-Energy Collider Neutrinos with FASER at the LHCAug 06 2019Neutrinos are copiously produced at particle colliders, but no collider neutrino has ever been detected. Colliders, and particularly hadron colliders, produce both neutrinos and anti-neutrinos of all flavors at very high energies, and they are therefore ... More
Long-term Operation of the Multi-Wire-Proportional-Chambers of the LHCb Muon SystemAug 06 2019The muon detector of LHCb, which comprises 1368 multi-wire-proportional-chambers (MWPC) for a total area of 435 m2, is the largest instrument of its kind exposed to such a high-radiation environment. In nine years of operation, from 2010 until 2018, we ... More
A flexible, open-source radio-frequency driver for acousto-optic and electro-optic devicesAug 06 2019We present a design for a radio-frequency driver that leverages telecom amplifiers to achieve high power output and wide bandwidth. The design consists of two compact printed circuit boards (total area $< 255$ cm), which incorporate power (turn-on) and ... More
beamModelTester: software framework for testing radio telescope beamsAug 06 2019The flux, polarimetric and spectral response of phased array radio telescopes with no moving parts such as LOFAR is known to vary considerably with orientation of the source to the receivers. Calibration models exist for this dependency such as those ... More
Megapixels @ Megahertz -- The AGIPD High-Speed Cameras for the European XFELAug 06 2019The European XFEL is an extremely brilliant Free Electron Laser Source with a very demanding pulse structure: trains of 2700 X-Ray pulses are repeated at 10 Hz. The pulses inside the train are spaced by 220 ns and each one contains up to $10^{12}$ photons ... More
Measurement of neutron beam spot distribution using a Micromegas detector for the Back-n white neutron facility at China Spallation Neutron SourceAug 06 2019The Back-n white neutron beam line, which uses back-streaming white neutrons from the spallation target of China Spallation Neutron Source, is extremely useful for nuclear data measurements. A Micromegas-based neutron detector with two variations is developed ... More
Measurement of neutron beam spot distribution using a Micromegas detector for the Back-n white neutron facility at China Spallation Neutron SourceAug 06 2019Aug 08 2019The Back-n white neutron beam line, which uses back-streaming white neutrons from the spallation target of China Spallation Neutron Source, is extremely useful for nuclear data measurements. A Micromegas-based neutron detector with two variations is developed ... More
Measurement of neutron beam spot distribution using a Micromegas detector for the Back-n white neutron facility at China Spallation Neutron SourceAug 06 2019Aug 07 2019The Back-n white neutron beam line, which uses back-streaming white neutrons from the spallation target of China Spallation Neutron Source, is extremely useful for nuclear data measurements. A Micromegas-based neutron detector with two variations is developed ... More
Measurement of neutron beam spot distribution using a Micromegas detector for the Back-n white neutron facility at China Spallation Neutron SourceAug 06 2019Aug 11 2019The Back-n white neutron beam line, which uses back-streaming white neutrons from the spallation target of China Spallation Neutron Source, is extremely useful for nuclear data measurements. A Micromegas-based neutron detector with two variations is developed ... More
GPGPU Tracking in the COMET Phase-I Cylindrical Drift ChamberAug 06 2019The track finding with GPGPU-implemented fourth order Runge-Kutta (RK) method is investigated to track electrons from muon decay in the COMET Phase-I cylindrical drift chamber. The COMET Phase-I experiment is aiming for discovering the neutrinoless, coherent ... More
Performance tests of boron-coated straw detectors with thermal and cold neutron beamsAug 05 2019Prototypes of newly developed boron-coated straw (BCS) detectors have been tested in the thermal and cold neutron energy ranges. Their neutron detection performance has been benchmarked against the industry standard (detector tubes filled with 3He gas). ... More
Prototype of the Readout Electronics for WCDA in LHAASOAug 05 2019In the Large High Altitude Air Shower Observatory (LHAASO), the Water Cherenkov Detector Array (WCDA) is one of the key parts. The WCDA consists of 3600 Photomultiplier Tubes (PMTs) scattered in a 90000 m2 area, and both high precision time and charge ... More
Sub-millimetric ultra-low-field MRI detected in situ by a dressed atomic magnetometerAug 04 2019Magnetic Resonance Imaging (MRI) is universally acknowledged as an excellent tool to extract detailed spatial information with minimally invasive measurements. Efforts toward ultra-low-field (ULF) MRI are made to simplify the scanners and to reduce artefacts ... More
A Mixed-Signal Large Dynamic Range Front-End ASIC for High Capacitance DetectorsAug 03 2019A 64-channel mixed-mode ASIC, suitable for particle detectors of large dynamic range and high capacitance up to hundreds of pF, is presented here. Each channel features an analogue front-end for signal amplification and filtering, and a mixed signal back-end ... More
Comb-mode-resolved adaptive sampling terahertz dual-comb spectroscopy with a free-running single-cavity fiber laserAug 03 2019Mode-resolved dual-comb spectroscopy (DCS) is an emerging spectroscopic tool with the potential to simultaneously achieve a broad spectral coverage and ultrahigh spectral resolution in terahertz (THz) spectroscopy. However, the need for two independently ... More
The Magnetic Toroidal Sector as A broad-band Electron-Positron Pair Spectrometer I. Lepton TrajectoriesAug 02 2019We report an analysis of electron-optical properties of a toroidal magnetic sector spectrometer and examine parameters for its implementation in a relativistic heavy-ion storage ring like HESR. For studies of free-free pair production in heavy-ion atom ... More
An Associated Particle Imaging System for Soil-Carbon MeasurementsAug 02 2019We present first results from experimental data showing the capabilities of an Associated Particle Imaging system to measure carbon in soil and other elements. Specifically, we present results from a pre-mixed soil sample containing pure sand (SiO$_2$) ... More
Multi-mode Time-delay Interferometer for Free-space Quantum CommunicationAug 02 2019Quantum communication schemes such as quantum key distribution (QKD) and superdense teleportation provide unique opportunities to communicate information securely. Increasingly, optical communication is being extended to free-space channels, but atmospheric ... More
A Molecule-Based Single-Photon Source Applied in Quantum RadiometryAug 01 2019Single photon sources (SPSs) based on quantum emitters hold promise in quantum radiometry as metrology standard for photon fluxes at the low light level. Ideally this requires control over the photon flux in a wide dynamic range, sub-Poissonian photon ... More
A Molecule-Based Single-Photon Source Applied in Quantum RadiometryAug 01 2019Aug 05 2019Single photon sources (SPSs) based on quantum emitters hold promise in quantum radiometry as metrology standard for photon fluxes at the low light level. Ideally this requires control over the photon flux in a wide dynamic range, sub-Poissonian photon ... More
Measurement of the ionization yield from nuclear recoils in liquid xenon between 0.3 -- 6 keV with single-ionization-electron sensitivityAug 01 2019Dual-phase xenon TPC detectors are a highly scalable and widely used technology to search for low-energy nuclear recoil signals from WIMP dark matter or coherent nuclear scattering of $\sim$MeV neutrinos. Such experiments expect to measure O(keV) ionization ... More
New developments in conformal tracking for the CLIC detectorAug 01 2019Conformal tracking is an innovative track finding strategy adopted for the detector at the Compact Linear Collider (CLIC), a proposed future electron-positron collider. It features a pattern recognition in a conformal-mapped plane using the cellular automaton ... More
Conformal Tracking for all-silicon trackers at future electron-positron collidersAug 01 2019Conformal tracking is an innovative and comprehensive pattern recognition technique using a cellular automaton-based track finding performed in a conformally-mapped space. It is particularly well-suited for light-weight silicon systems with high position ... More
Upper limits on the amplitude of ultra-high-frequency gravitational waves from graviton-photon mixingAug 01 2019In this work, we present the first experimental upper limits on the presence of stochastic ultra-high-frequency gravitational waves. We exclude gravitational waves in the frequency bands from $(2.7 - 14)\times10^{14}~$Hz and $(5 - 12)\times10^{18}~$Hz ... More
New Technologies for DiscoveryAug 01 2019For the field of high energy physics to continue to have a bright future, priority within the field must be given to investments in the development of both evolutionary and transformational detector development that is coordinated across the national ... More
New Technologies for DiscoveryAug 01 2019Aug 10 2019For the field of high energy physics to continue to have a bright future, priority within the field must be given to investments in the development of both evolutionary and transformational detector development that is coordinated across the national ... More
The Physics Behind the CosmicWatch Desktop Muon DetectorsJul 31 2019The CosmicWatch Desktop Muon Detector is a Massachusetts Institute of Technology (MIT) and Polish National Centre for Nuclear Research (NCBJ) based undergraduate-level physics project that incorporates various aspects of electronics-shop technical development. ... More
Diamond-Like Carbon for the Fast Timing MPGDJul 31 2019The present generation of Micro-Pattern Gaseous Detectors (MPGDs) are radiation hard detectors, capable of detecting efficiently particle rates of several MHz/cm$^2$ , while exhibiting good spatial resolution ($\leq$ 50 $\mu$m) and modest time resolution ... More
Optimal X-ray filters for EDXRF analysisJul 31 2019This work presents a semi-analytical approach to answer the question of optimal beam filtering in the case of EDXRF measurements with an X-ray tube. A collection of programs, called \textit{xfilter}, is presented that is capable to find the optimal filter ... More
Quantitative analysis of spectroscopic Low Energy Electron Microscopy data: High-dynamic range imaging, drift correction and cluster analysisJul 31 2019For many complex materials systems, low-energy electron microscopy (LEEM) offers detailed insights into morphology and crystallography by naturally combining real-space and reciprocal-space information. Its unique strength, however, is that all measurements ... More
A pyramid MOT with integrated optical cavities as a cold atom platform for an optical lattice clockJul 31 2019We realize a two-stage, hexagonal pyramid magneto-optical trap (MOT) with strontium, and demonstrate loading of cold atoms into cavity-enhanced 1D and 2D optical lattice traps, all within a single compact assembly of in-vacuum optics. We show that the ... More
Black silicon UV photodiodes achieve >130% external quantum efficiencyJul 31 2019At present ultraviolet sensors are utilized in numerous fields ranging from various spectroscopy applications via biotechnical innovations to industrial process control. Despite of this, the performance of current UV sensors is surprisingly poor. Here, ... More
Study of the effect of external noise pickups on the performance of a cryogenic bolometerJul 31 2019This paper reports the detailed noise characterization, investigation of various noise sources and its mitigation to improve the performance of a cryogenic bolometer detector. The noise spectrum has been measured for a sapphire bolometer test setup with ... More
Atto-Nm Torque Sensing with a Macroscopic Optomechanical Torsion PendulumJul 30 2019Precise measurements of the displacement of, and force acting on, a mechanical oscillator can be performed by coupling the oscillator to an optical cavity. Brownian thermal forces represent a fundamental limit to measurement sensitivity which impedes ... More
Superconducting nanowires as high-rate photon detectors in strong magnetic fieldsJul 30 2019Superconducting nanowire single-photon detectors are capable of single-photon detection across a large spectral range, with near-unity detection efficiency, picosecond timing jitter, and sub-10 $\mu$m position resolution at rates as high as 1 GHz. In ... More
Long-range, phase-and-polarization diversity coherent reflectometerJul 30 2019A coherent, short-length reference arm reflectometer, which utilizes a 76-MHz repetition rate mode-locked fiber laser, was investigated experimentally for long fiber links (> 10 km). The reflectometer combines the advantages of optical time-domain and ... More
Super-ORCA: Measuring the leptonic CP-phase with Atmospheric Neutrinos and Beam NeutrinosJul 30 2019Studying the atmospheric neutrino oscillation probabilities below 2 GeV with a multi-megaton Cherenkov detector allows for a measurement of the leptonic CP-phase $\delta_{CP}$. The most relevant CP-sensitive energy range is below the neutrino detection ... More
Testing the near-infrared optical assembly of the space telescope EuclidJul 30 2019Euclid is a space telescope currently developed in the framework of the ESA Cosmic Vision 2015-2025 Program. It addresses fundamental cosmological questions related to dark matter and dark energy. The lens system of one of the two scientific key instruments ... More
Characterisation of a CeBr$_3$(LB) detector for space applicationJul 30 2019We describe the performance of a $\mathrm{23\times 23\times30 ~mm^3}$ low background cerium bromide, CeBr$_3$(LB), scintillator crystal coupled to a Hamamatsu R11265U-200 photomultiplier. This detector will be the building block for a gamma-ray detector ... More
Smart real time system for heavy element research within new FLNR(JINR) Super Heavy Element Factory project: new approaches, algorithms, implementationJul 30 2019The Dubna Gas Filled Recoil Separator is the most advanced facility currently in use in the field of research of superheavy nuclei. Definitely, the DGFRS detection system and method of active correlations have played a significant role in these discoveries. ... More
Investigating radiation damage in nuclear energy materials using JANNuS multiple ion beamsJul 30 2019Ion accelerators have been used by material scientists for decades to investigate radiation damage formation in nuclear materials and thus to emulate neutron-induced changes. The versatility of conditions in terms of particle energy, dose rate, fluence, ... More
Influence of non-uniformity in sapphire substrates for a gravitational wave telescopeJul 30 2019Construction of a large-scale cryogenic gravitational-wave telescope KAGRA has been completed and the four sapphire test masses have been installed in cryostat vacuum chambers. It recently turned out that a sapphire substrate used for one of the input ... More
A Search for Light Dark Matter Interactions Enhanced by the Migdal effect or Bremsstrahlung in XENON1TJul 30 2019Direct dark matter detection experiments based on a liquid xenon target are leading the search for dark matter particles with masses above $\sim$5 GeV/c$^2$, but have limited sensitivity to lighter masses because of the small momentum transfer in dark ... More
MPGD simulation in negative-ion gas for direction-sensitive dark matter searchesJul 30 2019Negative-ion time projection chambers (NITPCs) provide the absolute z-position from the arrival-times' difference of several species of negative-ions. This is a strong background reduction method for rare event searches, such as direct dark mater searches. ... More
Isolation solution for extreme environmental vibrations for quantum-enabling cryogenic setups installed on raised framesJul 29 2019Cryogenic quantum sensing techniques are developing alongside the ever-increasing requirements for noiseless experimental environments. For instance, several groups have isolated internal system vibrations from cold heads in closed-cycle dilution refrigerators. ... More
Constraints on Light Dark Matter Particles Interacting with Electrons from DAMIC at SNOLABJul 29 2019We report direct-detection constraints on light dark matter particles interacting with electrons. The results are based on a method that exploits the extremely low levels of leakage current of the DAMIC detector at SNOLAB of 2-6$\times$10$^{-22}$ A cm$^{-2}$. ... More
Broadband on-chip single-photon spectrometerJul 29 2019Single-photon counters are single-pixel binary devices that click upon the absorption of a photon but obscure its spectral information, whereas resolving the colour of detected photons has been in critical demand for frontier astronomical observation, ... More
First results from the WISPDMX radio frequency cavity searches for hidden photon dark matterJul 29 2019The origin of non-baryonic Dark Matter remains elusive despite ongoing sensitive searches for heavy, thermally produced dark matter particles. Recently, it has been shown, that non-thermally produced vector bosons (sometimes called hidden photons) related ... More
First results from the WISPDMX radio frequency cavity searches for hidden photon dark matterJul 29 2019Jul 30 2019The origin of non-baryonic Dark Matter remains elusive despite ongoing sensitive searches for heavy, thermally produced dark matter particles. Recently, it has been shown, that non-thermally produced vector bosons (sometimes called hidden photons) related ... More
Performance of Al-Mn Transition-Edge Sensor Bolometers in SPT-3GJul 27 2019SPT-3G is a polarization-sensitive receiver, installed on the South Pole Telescope, that measures the anisotropy of the cosmic microwave background (CMB) from degree to arcminute scales. The receiver consists of ten 150~mm-diameter detector wafers, containing ... More
Calibration of the charge and energy response of the MicroBooNE liquid argon time projection chamber using muons and protonsJul 26 2019We describe a method used to calibrate the position- and time-dependent response of the MicroBooNE liquid argon time projection chamber anode wires to ionization particle energy loss. The method makes use of crossing cosmic-ray muons to partially correct ... More
The CROSS Experiment: Unveiling the Mysteries of Neutrinos by Superconductivity MethodsJul 26 2019Neutrinoless double beta ($0\nu\beta\beta$) decay is a hypothetical rare nuclear transition ($T_{1/2}>10^{26}$ y). Its observation would provide an important insight about the nature of neutrinos (Dirac or Majorana particle) demonstrating that the lepton ... More
Studying fundamental limit of optical fiber links to $10^{-21}$ levelJul 26 2019We present an hybrid fiber link combining effective optical frequency transfer and evaluation of performances with a self-synchronized two-way comparison. It enables us to detect the round-trip fiber noise and each of the forward and backward one-way ... More
A Model for Excess Johnson Noise in Superconducting Transition-edge SensorsJul 26 2019Transition-Edge Sensors (TESs) are two-dimensional superconducting films used to detect energy or power. TESs are voltage biased in the resistive transition where the film resistance is both finite and a strong function of temperature. Electrical noise ... More
Positron Induced Electron Emission from GraphiteJul 25 2019In this paper, we present and analyze measurements of the positron induced electron spectra (PIES) from highly oriented pyrolytic graphite (HOPG). The spectra were obtained using a time of flight spectrometer attached to a variable energy positron beam. ... More
Locust: C++ software for simulation of RF detectionJul 25 2019The Locust simulation package is a new C++ software tool developed to simulate the measurement of time-varying electromagnetic fields using RF detection techniques. Modularity and flexibility allow for arbitrary input signals, while concurrently supporting ... More
Continuous Radio Amplification by Stimulated Emission using Parahydrogen Induced Polarization (PHIP-RASER) at 14 TeslaJul 25 2019Nuclear Magnetic Resonance (NMR) is an intriguing quantum-mechanical effect that is used for daily life medical diagnostics and chemical analysis alike. Numerous advancements have contributed to the success of the technique, including hyperpolarized contrast ... More
On-sky performance of the SPT-3G frequency-domain multiplexed readoutJul 25 2019Frequency-domain multiplexing (fMux) is an established technique for the readout of large arrays of transition edge sensor (TES) bolometers. Each TES in a multiplexing module has a unique AC voltage bias that is selected by a resonant filter. This scheme ... More
Characterization of Light Production and Transport in Tellurium Dioxide CrystalsJul 25 2019Simultaneous measurement of phonon and light signatures is an effective way to reduce the backgrounds and increase the sensitivity of CUPID, a next-generation bolometric neutrinoless double-beta decay ($0\nu\beta\beta$) experiment. Light emission in tellurium ... More