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Proton Computed Tomography (pCT) provides a promising solution to enhance the accuracy of Relative Stopping Power (RSP) required for proton therapy planning. This research introduces a novel high-granularity pCT architecture that…

To improve the quality of cancer treatment with protons, a translation of X-ray Computed Tomography (CT) images into a map of the proton stopping powers needs to be more accurate. Proton stopping powers determined from CT images have…

The calorimeter, range detector and active target elements of the T2K near detectors rely on the Hamamatsu Photonics Multi-Pixel Photon Counters (MPPCs) to detect scintillation light produced by charged particles. Detailed measurements of…

The use of photometric redshifts in cosmology is increasing. Often, however these photo-zs are treated like spectroscopic observations, in that the peak of the photometric redshift, rather than the full probability density function (PDF),…

宇宙学与河外天体物理 · 物理学 2015-05-13 Adam D Myers , Martin White , Nicholas M. Ball

Objective: To perform a comprehensive comparative analysis of proton, helium-ion, and carbon-ion computed tomography (CT) as direct imaging modalities for hadron therapy treatment planning, focusing on Relative Stopping Power (RSP)…

医学物理 · 物理学 2026-05-29 Zsófia Jólesz , Gábor Bíró , Gábor Papp , Gergely Gábor Barnaföldi

Remote observation of spectroscopic emissions is a potential tool for the identification and quantification of various species in comets. CO Cameron band (to trace \cod) and atomic oxygen emissions (to trace H$_2$O and/or CO$_2$, CO) have…

地球与行星天体物理 · 物理学 2016-02-17 Susarla Raghuram , Anil Bhardwaj , Marina Galand

Gamma-ray burst (GRB) prompt emission is commonly attributed to non-thermal radiation processes operating in the optically thin regions of a relativistic outflow. Among these, optically thin inverse-Compton (IC) scattering remains an…

高能天体物理现象 · 物理学 2026-03-31 Pragyan Pratim Bordoloi , Shubh Mittal , Shabnam Iyyani

In this first paper of a series we develop a new technique to analyze clusters of galaxies observed during the ROSAT All-Sky Survey (RASS). We call this method the Steepness Ratio Technique (SRT). The SRT uses the convolution between the…

天体物理学 · 物理学 2009-10-30 S. De Grandi , S. Molendi , H. Böhringer , G. Chincarini , W. Voges

The BASE collaboration at the Antiproton Decelerator facility of CERN compares the fundamental properties of protons and antiprotons using advanced Penning-trap systems. In previous measurement campaigns, we measured the magnetic moments of…

Although the MeV gamma-ray band is a promising energy-band window in astrophysics, the current situation of MeV gamma-ray astronomy significantly lags behind those of the other energy bands in angular resolution and sensitivity. An…

Purpose: There is increasing interest in computed tomography (CT) image estimations from magnetic resonance (MR) images. The estimated CT images can be utilised for attenuation correction, patient positioning, and dose planning in…

统计方法学 · 统计学 2019-04-02 Fekadu L. Bayisa , Xijia Liu , Anders Garpebring , Jun Yu

In this paper, we present our approach to systematically measure numerous performance parameters of MCP-PMTs. The experimental setups, the analyses and selected results are discussed. Although the techniques used may be different in other…

仪器与探测器 · 物理学 2024-07-08 A. Lehmann , M. Böhm , M. Götz , K. Gumbert , S. Krauss , D. Miehling , M. Pfaffinger

This paper addresses the problem of detecting changes when only unnormalized pre- and post-change distributions are accessible. This situation happens in many scenarios in physics such as in ferromagnetism, crystallography,…

机器学习 · 统计学 2025-02-12 Arman Adibi , Sanjeev Kulkarni , H. Vincent Poor , Taposh Banerjee , Vahid Tarokh

Astrophysical molecular spectroscopy is an important means of searching for new physics through probing the variation of the proton-to-electron mass ratio, $\mu$. New molecular probes could provide tighter constraints on the variation of…

原子物理 · 物理学 2020-08-26 Anna-Maree Syme , Laura K. McKemmish

Approximate counting via correlation decay is the core algorithmic technique used in the sharp delineation of the computational phase transition that arises in the approximation of the partition function of anti-ferromagnetic two-spin…

计算复杂性 · 计算机科学 2019-02-04 Ivona Bezakova , Andreas Galanis , Leslie Ann Goldberg , Heng Guo , Daniel Stefankovic

While there are many different methods for peak detection, no automatic methods for marking peak boundaries to calculate area under the curve (AUC) and signal-to-noise ratio (SNR) estimation exist. An algorithm for the automation of liquid…

定量方法 · 定量生物学 2026-01-16 Florian Rupprecht , Sören Enge , Kornelius Schmidt , Wei Gao , Clemens Kirschbaum , Robert Miller

Phase Resolved Optical Emission Spectroscopy (PROES) measurements combined with 1d3v Particle-in-Cell/Monte Carlo Collision (PIC/MCC) simulations are performed to investigate the excitation dynamics in low-pressure capacitively coupled…

等离子体物理 · 物理学 2023-07-21 Aranka Derzsi , Mate Vass , Ranna Masheyeva , Benedek Horvath , Zoltan Donko , Peter Hartmann

The low $Q^2$ slopes of the the transition form factors provide a unique method to measure the sizes of the neutral pseudo-scalar mesons, since they do not have electromagnetic form factors. From the slope one obtains the "axial transition…

核实验 · 物理学 2015-11-23 A. M. Bernstein

This work introduces a comprehensive approach utilizing data-driven methods to elucidate the deposition process regimes in Chemical Vapor Deposition (CVD) reactors and the interplay of physical mechanism that dominate in each one of them.…

We study the topological charge density distribution using the two-dimensional $CP^{N-1}$ model. We numerically compute not only the topological susceptibility, which is a spatially global quantity to probe topological properties of the…

高能物理 - 格点 · 物理学 2020-02-05 Yuya Abe , Kenji Fukushima , Yoshimasa Hidaka , Hiroaki Matsueda , Koichi Murase , Shoichi Sasaki