This collection explores the fascinating world of instrumentation and detection within physics, focusing on the tools and sensors that allow scientists to measure the universe. From advanced particle trackers to sensitive gravitational wave detectors, these innovations form the backbone of modern discovery, turning abstract theories into observable data.

On Gist.Science, we process every new preprint in this field as it appears on arXiv, ensuring you stay ahead of the curve. Each paper is accompanied by a clear, plain-language explanation alongside a detailed technical summary, bridging the gap between complex research and accessible knowledge.

Below are the latest papers in physics instrumentation and detection, offering fresh insights into how we observe the fundamental nature of reality.

Low-Cost Turntable Designed for RF Phased Array Antenna Active Element Pattern Measurement

This paper presents the design of an affordable, motorized, 3D-printed turntable specifically engineered with RF considerations like cable phase stability to enable accurate active element pattern measurements for integrated sensing and communication technologies.

Rebekah Edwards, Taylor Martini, Jonathan E. Swindell, David W. Cox, Adam C. Goad, Austin Egbert, Charles Baylis, Robert J. Marks2026-04-23⚡ eess

Suppression of Neutron Background using Deep Neural Network and Fourier Frequency Analysis at the KOTO Experiment

The KOTO experiment at J-PARC successfully suppressed neutron background by a factor of 5.6×1055.6\times10^5 while maintaining 70% signal efficiency for the rare KL0π0ννˉK^0_L\rightarrow\pi^0\nu\bar{\nu} decay search by employing deep convolutional neural networks and Fourier frequency analysis to distinguish neutrons from photons based on their distinct cluster and pulse shapes in the undoped CsI electromagnetic calorimeter.

Y. -C. Tung, J. Li, Y. B. Hsiung, C. Lin, H. Nanjo, T. Nomura, J. C. Redeker, N. Shimizu, S. Shinohara, K. Shiomi, Y. W. Wah, T. Yamanaka2026-04-22⚛️ hep-ex

A Neural-Network Framework for Tracking and Identification of Cosmic-Ray Nuclei in the RadMap Telescope

This paper presents a neural-network framework utilizing Geant4 simulations to reconstruct cosmic-ray nuclei properties in the RadMap Telescope, achieving high angular resolution, charge separation accuracy (up to 99.8% for hydrogen), and energy resolution (<20% below 1 GeV/n) to enable precise determination of astronaut radiation doses.

Luise Meyer-Hetling, Martin J. Losekamm, Stephan Paul, Thomas Pöschl2026-04-22🔭 astro-ph

Full-Field Brillouin Microscopy with a Scanning Fabry-Perot Interferometer

This paper demonstrates that a standard multi-pass tandem Fabry-Perot interferometer, when operated in a spectral filtering mode and combined with light-sheet illumination, enables rapid, full-field Brillouin microscopy with millisecond-scale acquisition times, overcoming the historical speed limitations of FPI-based systems for practical imaging applications.

Mikolaj Pochylski (Faculty of Physics,Astronomy, Adam Mickiewicz University, Poznan, Poland)2026-04-22🔬 physics.optics

Neural network-based deconvolution for GeV-Scale Gamma-Ray Spectroscopy

This study proposes a novel machine learning framework combining a Monte Carlo-optimized gamma-ray spectrometer with a two-stage neural network (denoising autoencoder and U-Net) to achieve precise spectral reconstruction of GeV-scale gamma rays, addressing the challenges of ill-posed inverse problems and statistical noise in high-energy photon diagnostics.

Zhuofan Zhang, Mingxuan Wei, Kyle Fleck, Jun Liu, Xinjian Tan, Gianluca Sarri, Wenchao Yan2026-04-22🔬 physics

In situ and operando laboratory X-ray absorption spectroscopy at high temperature and controlled gas atmosphere with a plug-flow fixed-bed cell

This paper demonstrates the capabilities of a custom-built plug-flow fixed-bed cell for high-temperature (up to 1000°C) and high-pressure (up to 10 bar) operando laboratory X-ray absorption spectroscopy, successfully resolving oxidation state changes and catalytic activity in manganese and nickel systems during CO2 methanation within 5–15 minutes per spectrum.

Sebastian Praetz, Emiliano Dal Molin, Delf Kober, Marko Tesic, Christopher Schlesiger, Peter Kraus, Julian T. Müller, Jyothilakshmi Ravi Aswin, Daniel Grötzsch, Maged F. Bekheet, Albert Gili, Alek (…)2026-04-22✓ Author reviewed 🔬 physics.app-ph

Lund Plane to Bloch (LP2B) Encoding for Object and Polarization Tagging with Quantum Jet Substructure

This paper introduces the Lund Plane to Bloch (LP2B) encoding and a corresponding Quantum Tree-Topology Network (QTTN) that maps robust jet kinematics to qubit states, achieving competitive performance in object and polarization tagging with significantly fewer parameters and reduced systematic uncertainties compared to classical deep learning models, while also being validated on real quantum hardware.

Fabrizio Napolitano, Luca Della Penna, Tommaso Tedeschi, Livio Fanò2026-04-22⚛️ quant-ph

Three-dimensional recoil-electron reconstruction using combined optical imaging and waveform readout for electron-tracking Compton cameras

This study proposes and demonstrates a practical method for reconstructing three-dimensional recoil-electron directions in electron-tracking Compton cameras by combining high-resolution 2D optical imaging, 1D waveform readout, and deep learning, achieving improved angular and starting-point resolution without the data volume constraints of full 3D readout systems.

Tomonori Ikeda, Tatsuya Sawano, Naomi Tsuji, Yoshitaka Mizumura2026-04-22⚛️ hep-ex

Drift Correction of Scan Images by Snapshot Referencing

This paper introduces snapshot-referencing (SSR), a software-based retrospective drift correction method that utilizes a fast-scan reference image and flexible basis functions to eliminate spatial distortions in long-duration S(T)EM spectral mapping, thereby restoring the integrity of hyperspectral data without requiring specialized hardware.

Zac Thollar, Kanto Maeda, Tetsuya Kubota, Taka-aki Yano, Qiwen Tan, Takumi Sannomiya2026-04-22🔬 cond-mat.mtrl-sci

Charge carrier generation in RNDR-DEPFET Detectors

This paper presents the experimental characterization of a 64×6464\times64 RNDR-DEPFET pixel detector, highlighting its deep sub-electron noise performance, high time resolution, and suitability for the DANAE experiment's search for light dark matter via electron recoil detection.

Niels Wernicke, Alexander Bähr, Hannah Danhel, Florian Heinrich, Holger Kluck, Jelena Ninkovic, Jochen Schieck, Wolfgang Treberspurg, Johannes Treis2026-04-21⚛️ hep-ex