Preliminary test of topmetal-II− sensor for X-ray polarization measurements

Zili Li; Huanbo Feng; Xuefeng Huang; Jin Zhang; Jiaqi Su; Xinchen Cai; Zuke Feng; Qian Liu; Hongbang Liu; Chaosong Gao; Le Xiao; Xiangming Sun

doi:10.1016/j.nima.2021.165430

Preliminary test of topmetal-II⁻ sensor for X-ray polarization measurements

Zili Li, Huanbo Feng, Xuefeng Huang, Jin Zhang, Jiaqi Su, Xinchen Cai, Zuke Feng, Qian Liu, Hongbang Liu^*, Chaosong Gao, Le Xiao, Xiangming Sun

^*Corresponding author for this work

Research output: Contribution to journal › Review article › peer-review

22 Citations (Scopus)

Abstract

We present the assembly and preliminary results of a prototype detector, which was developed to evaluate the performance of the Topmetal-II⁻ for application in Soft X-ray Polarimeter (SXP). SXP is used to measure the polarization of X-rays emitted from randomly occurring gamma-ray bursts (GRBs) and other specific dense celestial bodies. The Topmetal-II⁻ is a silicon pixel sensor designed to directly track charged particles. The test was conducted on a gas mixture of Ne and DME at 0.8 atm pressure, and the Topmetal-II⁻ sensor was used to image the photoelectron tracks. Typical real X-ray tracks obtained under four conditions are presented in this paper. The modulation factor derived from the tracks of 100% polarized 4.5 keV X-rays reached ∼ 29% at ∼ 53% signal efficiency, with a residual modulation of the order of ∼ 2% for unpolarized 5.9 keV X-rays.

Original language	English
Article number	165430
Journal	Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume	1008
DOIs	https://doi.org/10.1016/j.nima.2021.165430
Publication status	Published - 21 Aug 2021
Externally published	Yes

Keywords

Gas Pixel Detector
Photoelectron track
THGEM
Topmetal
X-ray polarimetry

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10.1016/j.nima.2021.165430

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Li, Z., Feng, H., Huang, X., Zhang, J., Su, J., Cai, X., Feng, Z., Liu, Q., Liu, H., Gao, C., Xiao, L., & Sun, X. (2021). Preliminary test of topmetal-II⁻ sensor for X-ray polarization measurements. Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 1008, Article 165430. https://doi.org/10.1016/j.nima.2021.165430

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title = "Preliminary test of topmetal-II− sensor for X-ray polarization measurements",

abstract = "We present the assembly and preliminary results of a prototype detector, which was developed to evaluate the performance of the Topmetal-II− for application in Soft X-ray Polarimeter (SXP). SXP is used to measure the polarization of X-rays emitted from randomly occurring gamma-ray bursts (GRBs) and other specific dense celestial bodies. The Topmetal-II− is a silicon pixel sensor designed to directly track charged particles. The test was conducted on a gas mixture of Ne and DME at 0.8 atm pressure, and the Topmetal-II− sensor was used to image the photoelectron tracks. Typical real X-ray tracks obtained under four conditions are presented in this paper. The modulation factor derived from the tracks of 100% polarized 4.5 keV X-rays reached ∼ 29% at ∼ 53% signal efficiency, with a residual modulation of the order of ∼ 2% for unpolarized 5.9 keV X-rays.",

keywords = "Gas Pixel Detector, Photoelectron track, THGEM, Topmetal, X-ray polarimetry",

author = "Zili Li and Huanbo Feng and Xuefeng Huang and Jin Zhang and Jiaqi Su and Xinchen Cai and Zuke Feng and Qian Liu and Hongbang Liu and Chaosong Gao and Le Xiao and Xiangming Sun",

note = "Publisher Copyright: {\textcopyright} 2021 Elsevier B.V.",

year = "2021",

month = aug,

day = "21",

doi = "10.1016/j.nima.2021.165430",

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Li, Z, Feng, H, Huang, X, Zhang, J, Su, J, Cai, X, Feng, Z, Liu, Q, Liu, H, Gao, C, Xiao, L & Sun, X 2021, 'Preliminary test of topmetal-II⁻ sensor for X-ray polarization measurements', Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, vol. 1008, 165430. https://doi.org/10.1016/j.nima.2021.165430

TY - JOUR

T1 - Preliminary test of topmetal-II− sensor for X-ray polarization measurements

AU - Li, Zili

AU - Feng, Huanbo

AU - Huang, Xuefeng

AU - Zhang, Jin

AU - Su, Jiaqi

AU - Cai, Xinchen

AU - Feng, Zuke

AU - Liu, Qian

AU - Liu, Hongbang

AU - Gao, Chaosong

AU - Xiao, Le

AU - Sun, Xiangming

PY - 2021/8/21

Y1 - 2021/8/21

N2 - We present the assembly and preliminary results of a prototype detector, which was developed to evaluate the performance of the Topmetal-II− for application in Soft X-ray Polarimeter (SXP). SXP is used to measure the polarization of X-rays emitted from randomly occurring gamma-ray bursts (GRBs) and other specific dense celestial bodies. The Topmetal-II− is a silicon pixel sensor designed to directly track charged particles. The test was conducted on a gas mixture of Ne and DME at 0.8 atm pressure, and the Topmetal-II− sensor was used to image the photoelectron tracks. Typical real X-ray tracks obtained under four conditions are presented in this paper. The modulation factor derived from the tracks of 100% polarized 4.5 keV X-rays reached ∼ 29% at ∼ 53% signal efficiency, with a residual modulation of the order of ∼ 2% for unpolarized 5.9 keV X-rays.

AB - We present the assembly and preliminary results of a prototype detector, which was developed to evaluate the performance of the Topmetal-II− for application in Soft X-ray Polarimeter (SXP). SXP is used to measure the polarization of X-rays emitted from randomly occurring gamma-ray bursts (GRBs) and other specific dense celestial bodies. The Topmetal-II− is a silicon pixel sensor designed to directly track charged particles. The test was conducted on a gas mixture of Ne and DME at 0.8 atm pressure, and the Topmetal-II− sensor was used to image the photoelectron tracks. Typical real X-ray tracks obtained under four conditions are presented in this paper. The modulation factor derived from the tracks of 100% polarized 4.5 keV X-rays reached ∼ 29% at ∼ 53% signal efficiency, with a residual modulation of the order of ∼ 2% for unpolarized 5.9 keV X-rays.

KW - Gas Pixel Detector

KW - Photoelectron track

KW - THGEM

KW - Topmetal

KW - X-ray polarimetry

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U2 - 10.1016/j.nima.2021.165430

DO - 10.1016/j.nima.2021.165430

M3 - Review article

AN - SCOPUS:85106636765

SN - 0168-9002

VL - 1008

JO - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment

JF - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment

M1 - 165430

ER -

Preliminary test of topmetal-II⁻ sensor for X-ray polarization measurements

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