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A time-of-flight (ToF) imaging system is proposed and its working principle demonstrated. To realize this system, a new device, a free-space optical mixer, is designed and fabricated. A scene is illuminated (flashed) with a megahertz level…

Single-photon time-of-flight (TOF) non-line-of-sight (NLOS) imaging enables the high-resolution reconstruction of objects outside the field of view. The compactness of TOF NLOS imaging systems, entailing the miniaturization of key…

Instrumentation and Detectors · Physics 2024-04-12 Jie Wu , Chao Yu , Jian-Wei Zeng , Chen Dai , Feihu Xu , Jun Zhang

We are exploring low-dose proton radiography and computed tomography (pCT) as techniques to improve the accuracy of proton treatment planning and to provide artifact-free images for verification and adaptive therapy at the time of…

Hadron therapy is a novel treatment against cancer. The main advantage of this therapy causes less side effect in comparison to X-ray irradiation methods. Hadron therapy is just ahead of a significant breakthrough since this technique can…

Instrumentation and Detectors · Physics 2020-05-07 Ákos Sudár

The rigorous diagnostics of experiments with warm dense matter (WDM) is notoriously difficult. A key method is given by X-ray Thomson scattering (XRTS), but the interpretation of XRTS measurements is usually based on theoretical models that…

Statistical Mechanics · Physics 2022-11-02 Tobias Dornheim , Jan Vorberger , Zhandos Moldabekov , Maximilian Böhme

Electrical impedance tomography (EIT) has been successfully applied to several important application domains such as medicine, geophysics and industrial imaging. EIT offers a high temporal resolution, which allows to track the location of a…

Signal Processing · Electrical Eng. & Systems 2019-11-13 Timo Huuhtanen , Antti Lankinen , Alexander Jung

In this work, we demonstrate the use of tapered optical fibers (TOF) to detect charged particle (ions), irradiated at various energies, fluences and species. The single mode tapered optical fiber has been used in various sensing…

Applied Physics · Physics 2022-10-25 Manoj K. Rajbhar , Basudeba Maharana , Shyamapada Patra , Shyamal Chatterjee

In this work we describe some recent results concerning the application of Resistive Plate Chambers operated in avalanche mode at atmospheric pressure for high-resolution time-of-flight measurements. A combination of multiple, mechanically…

Instrumentation and Detectors · Physics 2009-11-07 P. Fonte , V. Peskov

We present performance studies of the Time-of-Flight (ToF) subdetector of the ATLAS Forward Proton (AFP) detector at the LHC. Efficiencies and resolutions are measured using high-statistics data samples collected at low and moderate pile-up…

Instrumentation and Detectors · Physics 2024-06-03 ATLAS Collaboration

Measurements of Ion velocity distributions are one of basic goals of space plasma studies. There is variety of ion and electron spectrometers (e.g. Wuest et al, 2007, Young et al., 2007, Zurbuchen and Gershman, 2016, Vaisberg et al, 2016).…

Space Physics · Physics 2019-07-19 Oleg Vaisberg , Sergey Shuvalov

Measuring fast ions, most notably fusion alphas, in ITER and future reactors remains an issue that still lacks an adequate solution. Numerical simulations are invaluable in testing the potential and limitations of various proposed…

Plasma Physics · Physics 2019-10-09 Simppa Äkäslompolo , Taina Kurki-Suonio , Seppo Sipilä , the ASCOT Group

We report about a nuclear track imaging system which is designed to study in detail the ionization topology of charged particle tracks in a low-pressure gas. The detection method is based on a time projection chamber (TPC) filled with…

Instrumentation and Detectors · Physics 2007-05-23 U. Titt , A. Breskin , R. Chechik , V. Dangendorf , H. Schmidt-Boecking , H. Schuhmacher

Low-Gain Avalanche Detectors (LGADs) are the leading 4D sensing technology selected for use in the High Luminosity Large Hadron Collider (HL-LHC). However, their proximity to the interaction point makes them highly susceptible to…

Instrumentation and Detectors · Physics 2025-06-23 Rajiv Gupta , Sunidhi Saxena , Kalpna Tiwari , Rahul Sharma , Namrata Agrawal , Ashutosh Bhardwaj , Kirti Ranjan , Ajay Kumar

Ion dynamics that drive the transport and thermophysical properties of molten salts are poorly understood due to challenges in precisely quantifying the spatial and temporal fluctuations of specific ions in highly disordered systems. While…

We use long-term electron and proton in-situ measurements made by the CXD particle instruments, developed by Los Alamos National Laboratory and carried on board GPS satellites, to determine total ionizing dose (TID) values and daily/yearly…

Space Physics · Physics 2020-12-02 Yue Chen , Matthew R. Carver , Steven K. Morley , Andrew S. Hoover

Silicon-based fast time detectors have been widely used in high energy physics, nuclear physics, space exploration and other fields in recent years. However, silicon detectors often require complex low-temperature systems when operating in…

This paper describes the use of the time-of-flight (TOF) technique as a particle identification method for the HERMES experiment. The time-of-flight is measured by two 1x4 m^2 scintillation hodoscopes that initially were designed for the…

High Energy Physics - Experiment · Physics 2009-11-10 HERMES Collaboration , A. Airapetian , N. Akopov , M. Amarian , H. Avakian , A. Avetissian , E. Avetisyan , B. W. Filippone , R. Kaiser , H. Zohrabian

We introduce a new method for estimating the Ideal Time-Frequency Representation (ITFR) of complex nonstationary signals. The Reconstructive Ideal Fractional Transform (RIFT) computes a constellation of Continuous Fractional Wavelet…

Audio and Speech Processing · Electrical Eng. & Systems 2026-04-03 James M. Cozens , Simon J. Godsill

We report a new scenario of time-of-flight (TOF) technique in which fast neutrons and delayed gamma-ray signals were both recorded in a millisecond time window in harsh environments induced by high-intensity lasers. The delayed gamma…

The TOTEM experiment at the LHC is equipped with near beam movable devices -- called Roman Pots (RP) -- which detect protons scattered at the interaction point (IP5) arriving to the detectors through the magnet lattice of the LHC. Proton…

Accelerator Physics · Physics 2012-08-10 F. Nemes , H. Niewiadomski