In this work, we present a novel application of the full-field energy-dispersive X-ray fluorescence (EDXRF) imaging system based on MicroPattern Gaseous Detector (2D-THCOBRA) in cultural heritage field. The detector has an intrinsic capability with spatial resolution $$400\,{\upmu }\mathrm { m}\ \mathrm {FWHM}$$ , and is energy sensitive, presenting approximately $$1\ {keV\ FWHM}$$ at $$5.9\ {k...

A D-shaped fiber-optic surface plasmon resonance (SPR) sensor with MXene (Ti3C2Tx) is proposed as the sensing enhancement material. spin coating method was used to cover gold film fiber SPR a layer of MXene. Experimentally, sensor's sensitivity, full width at half maximum (FWHM), and figure merit (FOM) are discussed. The effect various concentrations on sensors investigated. results demonstrate...

Abstract The magnetocaloric effect (MCE) of Ni 0.4 Cu 0.2 Zn Fe 2- x Dy O 4 ( = 0.02, 0.03, and 0.04) nanoferrites is simulated using a phenomenological model. analysis indicates that the MCE strongly influenced by content in both conventional inverse MCE. For MCE, full-width at half-maximum $$\delta {\text{T}}_{{{\text{FWHM}}}}$$ <mml:m...

The latest Micromesh Gas Amplification Structures (Micromegas) are achieving outstanding energy resolution for low energy photons, with values as low as 11% FWHM for the 5.9 keV line of Fe in argon/isobutane mixtures at atmospheric pressure. At higher energies (MeV scale), these measurements are more complicated due to the difficulty in confining the events in the chamber, although there is no ...

Using 64 ms count data for long gamma-ray bursts ( T90 > 2.6 s), we analyze the quantity, relative spectral lag (RSL), which is defined as τ31/FWHM(1), where τ31 is the spectral lag between energy bands 1 and 3, and FWHM(1) denotes full width at half maximum of the pulse in energy channel 1. To get insights into features of the RSLs, we investigate in detail all the correlations between them an...

A 3-dimensional position sensitive CdZnTe gamma-ray spectrometer based on VAS3.1/TAT3 ASICs was developed and tested. The 3-D CZT spectrometer employs a 1.5 × 1.5 × 1 cm CdZnTe crystal with 11 by 11 pixelated anodes wire-bonded to the readout electronics. The signals from the anode pixels and the cathode were both read out through the ASICs. The pixel position provides the lateral 2-D coordinat...

Symmetric narrow waveguide structure has been developed and fabricated to achieve low beam divergence improved coupling performance of the 1.95 μm GaSb-based single-transverse-mode diode lasers. The near-field expansion effect narrowed 150 nm vertical design leads a reduced fast-axis 44.2° full width at half maximum (FWHM) as well 62% single-mode fiber (SMF) efficiency, which 55% relative promo...

The mechanism of reversible lithium intercalation in graphite anodes is still not fully understood. In operando Raman spectroscopy provides a sensitive means to monitor structural changes during the process. Analysis D-band G-band intensity ratio (D/G ratio) common method study structure carbon materials. However, this approach complicated for investigation battery cycling, as disappears with o...

We present the results of deep and high-resolution (FWHM ∼ 0.35) JHK near-infrared observations with the Subaru telescope, to search for very low mass E-mail: [email protected]