Characterization of x-ray detectors in the MIT x-ray polarimetry beamline

Sarah N. T. Heine; Herman L. Marshall; Benjamin Schneider; Beverly LaMarr; Nithya Kothnur; Alan Garner

doi:10.1117/12.3020451

27 August 2024 Characterization of x-ray detectors in the MIT x-ray polarimetry beamline

Sarah N. T. Heine, Herman L. Marshall, Benjamin Schneider, Beverly LaMarr, Nithya Kothnur, Alan Garner

Author Affiliations +

Proceedings Volume 13103, X-Ray, Optical, and Infrared Detectors for Astronomy XI; 1310316 (2024) https://doi.org/10.1117/12.3020451
Event: SPIE Astronomical Telescopes + Instrumentation, 2024, Yokohama, Japan

Abstract

The MIT x-ray Polarimetry Beamline is a facility that we developed for testing components for possible use in x-ray polarimetry. Over the past few years, we have demonstrated that the x-ray source can generate nearly 100% polarized x-rays at various energies from 183eV (Boron Kα) to 705eV (Fe Lα) using a laterally graded multilayer coated mirror (LGML) oriented at 45 degrees to the source. The position angle of the polarization can be rotated through a range of roughly 150°. In a downstream chamber, we can orient a Princeton Instruments MTE1300B CCD camera to observe the polarized light either directly or after reflection at 45° by a second LGML. In support of the REDSoX Polarimeter project, we have tested four other detectors by directly comparing them to the PI camera. Two were CCD cameras: a Raptor Eagle XV and a CCID94 produced by MIT Lincoln Laboratories, and two had sCMOS sensors: the Sydor Wraith with a GSENSE 400BSI sensor and a custom Sony IMX290 sensor. We will show results comparing quantum efficiencies and event images in the soft x-ray band.

Conference Presentation

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Sarah N. T. Heine, Herman L. Marshall, Benjamin Schneider, Beverly LaMarr, Nithya Kothnur, and Alan Garner "Characterization of x-ray detectors in the MIT x-ray polarimetry beamline", Proc. SPIE 13103, X-Ray, Optical, and Infrared Detectors for Astronomy XI, 1310316 (27 August 2024); https://doi.org/10.1117/12.3020451

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