Response of the Compton polarimeter POLAR to polarized hard X-rays

S Orsi, D Haas, W Hajdas, V Honkimäki… - Nuclear Instruments and …, 2011 - Elsevier
… As a compromise between noise minimization, large-angle scattering selection and
maximization of the number of events in the modulation curves, we have selected 20 and 30 keV as …

Compton polarimeter as a focal plane detector for hard X-ray telescope: sensitivity estimation with Geant4 simulations

T Chattopadhyay, SV Vadawale, J Pendharkar - Experimental Astronomy, 2013 - Springer
… of X-ray polarisation at energies above 10 keV it is necessary to employ polarimeters based
on Rayleigh/Compton … Figure 4 shows one of such modulation curves at 30 KeV. This …

Developing a Compton polarimeter to measure polarization of hard x-rays in the 50-300 keV energy range

J Legere, PL Bloser, JR Macri… - UV, X-Ray, and …, 2005 - spiedigitallibrary.org
… splitting can lead to levels up to 30%. Each of these mechanisms will emit gamma rays with
a known level of polarization at hard X-ray energies. Measuring the polarization levels from …

Compton polarimetry

E Del Monte, S Fabiani, M Pearce - Handbook of X-ray and Gamma-ray …, 2024 - Springer
… Above ∼20 keV, Compton scattering dominates, which is the focus of this chapter. The …
2016) is an example of such a kind of polarimeter operating in the 5–30 keV energy range. The …

Compton polarimetry in gamma-ray astronomy

F Lei, AJ Dean, GL Hills - Space science reviews, 1997 - Springer
… than 10 keV, due to the difficulties in making polarimetric … working energy range of 30–200
keV. Simulated observations have … towards the Crab source in the 30–200 keV energy band. …

Analysis of the data from Compton X-ray polarimeters which measure the azimuthal and polar scattering angles

H Krawczynski - Astroparticle Physics, 2011 - Elsevier
Compton scattered photons in the analysis, rather than using the azimuthal scattering angles
alone. We study the case of an ideal Compton polarimeter … from polarimeters in the >10 keV

Development of a hard x-ray focal plane compton polarimeter: a compact polarimetric configuration with scintillators and Si photomultipliers

T Chattopadhyay, SV Vadawale, SK Goyal… - Experimental …, 2016 - Springer
… Recent studies [30] suggest that change in polarization because of the hard X-… is ∼ 20 kev
which is essential as we plan a lower energy cut off of ∼ 20 kev for the Compton polarimeter. …

Hard X-ray polarization measured with a Compton polarimeter at synchrotron radiation facility

F Tokanai, H Sakurai, S Gunji, S Motegi… - Nuclear Instruments and …, 2004 - Elsevier
… have developed a compact Compton hard X-ray polarimeter with a … Compton hard X-ray
polarimeter, and the measured degree of linear polarization in the energy range of 15–40 keV at …

In search of the third dimension in Compton x-ray polarimeters

F Muleri, R Campana, E Borciani… - … to Gamma Ray, 2024 - spiedigitallibrary.org
… few tens of keV is very low: for example, it is of <2 keV for 90 ◦ scattering of 30 keV photons,
which … to what extent this methodology can be applied in the field of hard X-ray polarimeters. …

Hard X-ray polarimetry—an overview of the method, science drivers, and recent findings

T Chattopadhyay - Journal of Astrophysics and Astronomy, 2021 - Springer
… inverse Compton scattered by the corona introduces a separate polarized spectral component
at energies above 10 keV … of Crab in hard X-rays came almost after 30 years of the OSO-8 …