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Assembly and Test of the Gas Pixel Detector for X-ray Polarimetry

The gas pixel detector (GPD) dedicated for photoelectric X-ray polarimetry is selected as the focal plane detector for the ESA medium-class mission concept X-ray Imaging and Polarimetry Explorer (XIPE). Here we show the design, assembly, and preliminary test results of a small GPD for the purpose of... Full description

Journal Title: arXiv.org Sep 18, 2015
Main Author: Feng, H
Other Authors: Muleri, F , Bellazzini, R , Minuti, M , Soffitta, P , Brez, A , Spandre, G , Pinchera, M , Sgro, C , Baldini, L , She, R , Costa, E
Format: Electronic Article Electronic Article
Language: English
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ID: DOI: 10.1016/j.nima.2015.09.060
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recordid: proquest2084031703
title: Assembly and Test of the Gas Pixel Detector for X-ray Polarimetry
format: Article
creator:
  • Feng, H
  • Muleri, F
  • Bellazzini, R
  • Minuti, M
  • Soffitta, P
  • Brez, A
  • Spandre, G
  • Pinchera, M
  • Sgro, C
  • Baldini, L
  • She, R
  • Costa, E
subjects:
  • Sensors
  • Assembly
  • Position Measurement
  • Systematic Errors
  • Energy Resolution
  • Pixels
  • Polarimetry
  • X Ray Imagery
  • Photoelectricity
  • Modulation
  • Confidence Intervals
  • Gas Mixtures
  • Optimization
  • Focal Plane
  • Dimethyl Ether
  • Electric Fields
  • Energy Measurement
  • Error Detection
ispartof: arXiv.org, Sep 18, 2015
description: The gas pixel detector (GPD) dedicated for photoelectric X-ray polarimetry is selected as the focal plane detector for the ESA medium-class mission concept X-ray Imaging and Polarimetry Explorer (XIPE). Here we show the design, assembly, and preliminary test results of a small GPD for the purpose of gas mixture optimization needed for the phase A study of XIPE. The detector is assembled in house at Tsinghua University following a design by the INFN-Pisa group. The improved detector design results in a good uniformity for the electric field. Filled with pure dimethyl ether (DME) at 0.8 atm, the measured energy resolution is 18% at 6 keV and inversely scales with the square root of the X-ray energy. The measured modulation factor is well consistent with that from simulation, up to ~0.6 above 6 keV. The residual modulation is found to be 0.30% +/- 0.15% at 6 keV for the whole sensitive area, which can be translated into a systematic error of less than 1% for polarization measurement at a confidence...
language: eng
source:
identifier: DOI: 10.1016/j.nima.2015.09.060
fulltext: fulltext_linktorsrc
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titleAssembly and Test of the Gas Pixel Detector for X-ray Polarimetry
creatorFeng, H ; Muleri, F ; Bellazzini, R ; Minuti, M ; Soffitta, P ; Brez, A ; Spandre, G ; Pinchera, M ; Sgro, C ; Baldini, L ; She, R ; Costa, E
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ispartofarXiv.org, Sep 18, 2015
identifierDOI: 10.1016/j.nima.2015.09.060
subjectSensors ; Assembly ; Position Measurement ; Systematic Errors ; Energy Resolution ; Pixels ; Polarimetry ; X Ray Imagery ; Photoelectricity ; Modulation ; Confidence Intervals ; Gas Mixtures ; Optimization ; Focal Plane ; Dimethyl Ether ; Electric Fields ; Energy Measurement ; Error Detection
descriptionThe gas pixel detector (GPD) dedicated for photoelectric X-ray polarimetry is selected as the focal plane detector for the ESA medium-class mission concept X-ray Imaging and Polarimetry Explorer (XIPE). Here we show the design, assembly, and preliminary test results of a small GPD for the purpose of gas mixture optimization needed for the phase A study of XIPE. The detector is assembled in house at Tsinghua University following a design by the INFN-Pisa group. The improved detector design results in a good uniformity for the electric field. Filled with pure dimethyl ether (DME) at 0.8 atm, the measured energy resolution is 18% at 6 keV and inversely scales with the square root of the X-ray energy. The measured modulation factor is well consistent with that from simulation, up to ~0.6 above 6 keV. The residual modulation is found to be 0.30% +/- 0.15% at 6 keV for the whole sensitive area, which can be translated into a systematic error of less than 1% for polarization measurement at a confidence...
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titleAssembly and Test of the Gas Pixel Detector for X-ray Polarimetry
descriptionThe gas pixel detector (GPD) dedicated for photoelectric X-ray polarimetry is selected as the focal plane detector for the ESA medium-class mission concept X-ray Imaging and Polarimetry Explorer (XIPE). Here we show the design, assembly, and preliminary test results of a small GPD for the purpose of gas mixture optimization needed for the phase A study of XIPE. The detector is assembled in house at Tsinghua University following a design by the INFN-Pisa group. The improved detector design results in a good uniformity for the electric field. Filled with pure dimethyl ether (DME) at 0.8 atm, the measured energy resolution is 18% at 6 keV and inversely scales with the square root of the X-ray energy. The measured modulation factor is well consistent with that from simulation, up to ~0.6 above 6 keV. The residual modulation is found to be 0.30% +/- 0.15% at 6 keV for the whole sensitive area, which can be translated into a systematic error of less than 1% for polarization measurement at a confidence...
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5Pixels
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titleAssembly and Test of the Gas Pixel Detector for X-ray Polarimetry
authorFeng, H ; Muleri, F ; Bellazzini, R ; Minuti, M ; Soffitta, P ; Brez, A ; Spandre, G ; Pinchera, M ; Sgro, C ; Baldini, L ; She, R ; Costa, E
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abstractThe gas pixel detector (GPD) dedicated for photoelectric X-ray polarimetry is selected as the focal plane detector for the ESA medium-class mission concept X-ray Imaging and Polarimetry Explorer (XIPE). Here we show the design, assembly, and preliminary test results of a small GPD for the purpose of gas mixture optimization needed for the phase A study of XIPE. The detector is assembled in house at Tsinghua University following a design by the INFN-Pisa group. The improved detector design results in a good uniformity for the electric field. Filled with pure dimethyl ether (DME) at 0.8 atm, the measured energy resolution is 18% at 6 keV and inversely scales with the square root of the X-ray energy. The measured modulation factor is well consistent with that from simulation, up to ~0.6 above 6 keV. The residual modulation is found to be 0.30% +/- 0.15% at 6 keV for the whole sensitive area, which can be translated into a systematic error of less than 1% for polarization measurement at a confidence...
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pubCornell University Library, arXiv.org
doi10.1016/j.nima.2015.09.060
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