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| Main Authors: | , , , , , |
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| Format: | Preprint |
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2024
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2408.11168 |
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| _version_ | 1866929466673987584 |
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| author | Heine, Sarah N. T. Marshall, Herman L. Schneider, Benjamin Lamar, Beverly Kothnur, Nithya Garner, Alan |
| author_facet | Heine, Sarah N. T. Marshall, Herman L. Schneider, Benjamin Lamar, Beverly Kothnur, Nithya Garner, Alan |
| contents | 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 183 eV (Boron K$α$) to 705 eV (Fe L$α$) using a laterally graded multilayer coated mirror (LGML) oriented at 45° 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. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2408_11168 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Characterization of X-ray Detectors in the MIT X-ray Polarimetry Beamline Heine, Sarah N. T. Marshall, Herman L. Schneider, Benjamin Lamar, Beverly Kothnur, Nithya Garner, Alan Instrumentation and Methods for Astrophysics 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 183 eV (Boron K$α$) to 705 eV (Fe L$α$) using a laterally graded multilayer coated mirror (LGML) oriented at 45° 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. |
| title | Characterization of X-ray Detectors in the MIT X-ray Polarimetry Beamline |
| topic | Instrumentation and Methods for Astrophysics |
| url | https://arxiv.org/abs/2408.11168 |