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In single-molecule microscopy it is necessary to locate with high precision point sources from noisy observations of the spectrum of the signal at frequencies capped by $f_c$, which is just about the frequency of natural light. This paper…

Information Theory · Computer Science 2015-04-06 Veniamin I. Morgenshtern , Emmanuel J. Candes

We propose a new method for absolute momentum calibration of magnetic spectrometers used in nuclear physics, using the time-of-flight (TOF), differences of pairs of particles with different masses. In cases where the flight path is not…

To deepen the search for beyond the Standard Model physics, the Large Hadron Collider is pushing to higher and higher luminosity. At high luminosity, precision physics becomes increasingly difficult due to contamination from additional…

High Energy Physics - Phenomenology · Physics 2016-03-23 Christopher Frye , Andrew J. Larkoski , Matthew D. Schwartz , Kai Yan

The most common method to measure direct current high voltage (HV) down to the ppm-level is to use resistive high-voltage dividers. Such devices scale the HV into a range where it can be compared with precision digital voltmeters to…

Instrumentation and Detectors · Physics 2019-07-24 O. Rest , D. Winzen , S. Bauer , R. Berendes , J. Meisner , T. Thümmler , S. Wüstling , C. Weinheimer

A method is presented for calibrating the higher eigenmodes (resonance modes) of atomic force microscopy cantilevers that can be performed prior to any tip-sample interaction. The method leverages recent efforts in accurately calibrating…

Mesoscale and Nanoscale Physics · Physics 2016-08-03 Aleksander Labuda , Marta Kocun , Tim Walsh , Jieh Meinhold , Tania Proksch , Waiman Meinhold , Martin Lysy , Roger Proksch

The main method for calibrating the luminosity at Large Hadron Collider (LHC) is van der Meer scan where the beams are swept transversely across each other. This beautiful method was invented in 1968. Despite the honourable age, it remains…

High Energy Physics - Experiment · Physics 2021-02-03 Vladislav Balagura

In this paper, we try to improve the magnetogram calibration method of the Solar Magnetic Field Telescope (SMFT). The improved calibration process fits the observed full Stokes information, using six points on the profile of Fe {\i} 5324.18…

Solar and Stellar Astrophysics · Physics 2014-09-18 Xianyong Bai , Yuanyong Deng , Fei Teng , Jiangtao Su , Xinjie Mao , Guoping Wang

In this chapter we present a brief summary of methods, instruments and calibration techniques used in modern astronomical polarimetry in the optical wavelengths. We describe the properties of various polarization devices and detectors used…

Instrumentation and Methods for Astrophysics · Physics 2019-08-29 Andrei Berdyugin , Vilppu Piirola , Juri Poutanen

As telescopes get larger, the size of a seeing-limited spectrograph for a given resolving power becomes larger also, and for ELTs the size will be so great that high resolution instruments of simple design will be infeasible. Solutions…

Instrumentation and Methods for Astrophysics · Physics 2015-06-11 J. Gordon Robertson , Joss Bland-Hawthorn

Existing camera-projector calibration methods typically warp feature points from a camera image to a projector image using estimated homographies, and often suffer from errors in camera parameters and noise due to imperfect planarity of the…

Computer Vision and Pattern Recognition · Computer Science 2019-05-07 Bingyao Huang , Samed Ozdemir , Ying Tang , Chunyuan Liao , Haibin Ling

Optical spectroscopy the measurement of electromagnetic spectra is fundamental to various scientific domains and serves as the building block of numerous technologies. Computational spectrometry is an emerging field that employs an array of…

Improvement of label-free far-field resolution of optical imaging is possible with prior knowledge of the object such as its sparsity or accumulated by a posteriori examination of a similar class of object1-4. We show that the sole…

Optics · Physics 2026-02-03 Taeyong Chang , Giorgio Adamo , Nikolay I. Zheludev

We present a practical apparatus for characterizing optical aberrations of large collimation mirrors and lenses, and give a detailed analysis of wavefront-detection errors. We utilize a scanning pentaprism technique for precise measurements…

Optics · Physics 2022-05-13 Youn Seok Lee , Kimia Mohammadi , Thomas Jennewein

We employ a top-quark mass measurement technique in the dilepton channel with {\it in situ} jet energy scale calibration. Three variables having different jet energy scale dependences are used simultaneously to extract not only the…

High Energy Physics - Phenomenology · Physics 2012-09-19 Hyun Su Lee

In KEKB, synchrotron radiation interferometers (SRMs) are used for measuring the transverse beam sizes. There is also a tool for enlarging the vertical beam size intentionally by making an asymmetric bump, called an ``iSize'' bump, at one…

Accelerator Physics · Physics 2007-07-05 N. Iida , J. Flanagan , Y. Funakoshi , K. Oide

The two output signals of quadrature phase interferometers allow to benefit both from the high sensitivity of interferometry (working inside a fringe) and from an extended input range (counting fringes). Their calibration to reach a linear…

Instrumentation and Detectors · Physics 2022-09-07 Baptiste Ferrero , Ludovic Bellon

We report an approximated analytical solution for a single-probe four-state atomic magnetometer where no analytical solution exists. This approximated analytical solution demonstrates excellent accuracy in broad probe power and detuning…

Quantum Physics · Physics 2022-05-18 Lu Deng , Claire Deng

This report is to provide a novel method for the lepton energy calibration at Hadron Collider Experiments. The method improves the classic lepton energy calibration procedure widely used at hadron collider experiments. The classic method…

High Energy Physics - Experiment · Physics 2018-03-07 Siqi Yang , Usha Mallik , Liang Han , Weitao Wang , Jun Gao , Minghui Liu

(abridged) We review methods for measuring the sizes, line widths, and luminosities of giant molecular clouds (GMCs) in molecular-line data cubes with low resolution and sensitivity. We find that moment methods are robust and sensitive --…

Astrophysics · Physics 2008-11-26 Erik Rosolowsky , Adam Leroy

We have developed a position response calibration method for a micro-channel plate (MCP) detector with a delay-line anode position readout scheme. Using an {\em in situ} calibration mask, an accuracy of 8~$\mu$m and a resolution of…