Results 61 to 70 of about 17,725 (236)

Impact of three-dimensional polarization profiles on spin-dependent measurements in colliding beam experiments

open access: yesPhysical Review Special Topics. Accelerators and Beams, 2012
We derive the effect of 3-dimensional polarization profiles on the measured polarization in polarimeters, as well as the observed polarization and the polarization-weighted luminosity (figure of merit) in single and double spin measurements in colliding ...
Wolfram Fischer, Alexander Bazilevsky
doaj   +1 more source

A low-voltage retarding-field Mott polarimeter for photocathode characterization

open access: yes, 2010
Nuclear physics experiments at Thomas Jefferson National Accelerator Facility's CEBAF rely on high polarization electron beams. We describe a recently commissioned system for prequalifying and studying photocathodes for CEBAF with a load-locked, low ...
A.M. Cook   +35 more
core   +1 more source

Beam energy measurement at linear colliders using spin precession [PDF]

open access: yes, 2003
Linear collider designs foresee some bends of about 5-10 mrad. The spin precession angle of one TeV electrons on 10 mrad bend is 23.2 rad and it changes proportional to the energy. Measurement of the spin direction using Compton scattering of laser light
B. Berestersky   +8 more
core   +5 more sources

Development of Laterally Graded X‐Ray Multilayer Optics

open access: yesAdvanced Materials Technologies, EarlyView.
This work presents the development of laterally graded X‐ray multilayer optics with both constant and variable lateral gradients. By precisely controlling substrate speed profiles and mask design, these multilayers achieve highly accurate lateral gradients and excellent sagittal thickness uniformity, making them ideal for spectroscopy application at ...
Arindam Majhi   +11 more
wiley   +1 more source

A Multi‐Resonant Tunable Fabry‐Pérot Cavity for High Throughput Spectral Imaging

open access: yesAdvanced Optical Materials, Volume 13, Issue 8, March 13, 2025.
This study introduces a multi‐resonant tunable Fabry‐Pérot filter for high throughput spectral imaging. With a spectral resolution of 10 nm and a switching time of 23 ms, this compact and low‐cost device possesses better spectral imaging accuracy in poor light conditions while maintaining over six times higher optical throughput than standard liquid ...
Xiao Wu   +5 more
wiley   +1 more source

The submillimeter array polarimeter [PDF]

open access: yesSPIE Proceedings, 2008
To appear in Proc. SPIE 7020, 'Millimeter and Submillimeter Detectors and Instrumentation'.
Marrone, Daniel P., Rao, Ramprasad
openaire   +2 more sources

Calibration Methods of a Portable Polarizing System for Monitoring Optically Inhomogeneous Media

open access: yesComputation, 2022
Theoretical aspects of methods for calibrating Stokes polarimeters are considered. The prospects and opportunities for implementing the presented methods for calibrating portable polarization systems used in biology and medicine are determined.
Cong T. Nguyen   +7 more
doaj   +1 more source

Correlation methods for the analysis of X-ray polarimetric signals [PDF]

open access: yes, 2018
X-ray polarimetric measurements are based on studying the distribution of the directions of scattered photons or photoelectrons and on the search of a sinusoidal modulation with a period of {\pi}.
Campana, Riccardo   +6 more
core   +2 more sources

Dispersive Full‐Channel Jones Matrix Modulation in Elliptical Polarization Bases via a Single‐Layered Metasurface

open access: yesAdvanced Science, EarlyView.
This work presents a dispersive full‐channel Jones matrix modulation strategy using single‐layer metasurface. By synergizing wavelength dispersion engineering with elliptical polarization bases, independent control of four Jones matrix channels is achieved across multiple wavelengths.
Hairong He   +10 more
wiley   +1 more source

Imaging polarimetry in the LWIR with microgrid polarimeters

open access: yesEPJ Web of Conferences, 2010
Microgrid polarimeters have emerged over the past decade as a viable tool for performing real-time, highly accurate polarimetric imagery. A microgrid polarimeter operates by integrating a focal plane array (FPA) with an array of micropolarizing optics.
Tyo J.S.
doaj   +1 more source

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