HARPO, a gas TPC active target for high-performance γ-ray astronomy; demonstration of the polarimetry of MeV γ-rays converting to e+e− pair

D. Bernard

doi:10.1016/j.nima.2018.10.016

HARPO, a gas TPC active target for high-performance γ-ray astronomy; demonstration of the polarimetry of MeV γ-rays converting to e⁺e⁻ pair

D. Bernard

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

Abstract

No γ-ray polarimeter sensitive above 1 MeV has ever flown space. γ-ray polarimetry would be a new window on the radiative processes at work in cosmic sources, processes that produce linearly polarised emission, each of which with different polarisation fractions. The HARPO Collaboration has designed, built and characterised on beam a gas-TPC active target with which we have demonstrated for the first time the polarimetry of a linearly polarised MeV γ-ray beam, from the analysis of the conversions to e⁺e⁻ pairs.

Original language	English
Pages (from-to)	405-407
Number of pages	3
Journal	Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume	936
DOIs	https://doi.org/10.1016/j.nima.2018.10.016
Publication status	Published - 21 Aug 2019

Keywords

Gas detector
Pair production
Polarimeter
TPC
Telescope
γ-rays

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10.1016/j.nima.2018.10.016

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title = "HARPO, a gas TPC active target for high-performance γ-ray astronomy; demonstration of the polarimetry of MeV γ-rays converting to e+e− pair",

abstract = "No γ-ray polarimeter sensitive above 1 MeV has ever flown space. γ-ray polarimetry would be a new window on the radiative processes at work in cosmic sources, processes that produce linearly polarised emission, each of which with different polarisation fractions. The HARPO Collaboration has designed, built and characterised on beam a gas-TPC active target with which we have demonstrated for the first time the polarimetry of a linearly polarised MeV γ-ray beam, from the analysis of the conversions to e+e− pairs.",

keywords = "Gas detector, Pair production, Polarimeter, TPC, Telescope, γ-rays",

author = "D. Bernard",

note = "Publisher Copyright: {\textcopyright} 2018 Elsevier B.V.",

year = "2019",

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doi = "10.1016/j.nima.2018.10.016",

language = "English",

volume = "936",

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journal = "Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment",

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HARPO, a gas TPC active target for high-performance γ-ray astronomy; demonstration of the polarimetry of MeV γ-rays converting to e⁺e⁻ pair. / Bernard, D.
In: Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 936, 21.08.2019, p. 405-407.

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

TY - JOUR

T1 - HARPO, a gas TPC active target for high-performance γ-ray astronomy; demonstration of the polarimetry of MeV γ-rays converting to e+e− pair

AU - Bernard, D.

PY - 2019/8/21

Y1 - 2019/8/21

N2 - No γ-ray polarimeter sensitive above 1 MeV has ever flown space. γ-ray polarimetry would be a new window on the radiative processes at work in cosmic sources, processes that produce linearly polarised emission, each of which with different polarisation fractions. The HARPO Collaboration has designed, built and characterised on beam a gas-TPC active target with which we have demonstrated for the first time the polarimetry of a linearly polarised MeV γ-ray beam, from the analysis of the conversions to e+e− pairs.

AB - No γ-ray polarimeter sensitive above 1 MeV has ever flown space. γ-ray polarimetry would be a new window on the radiative processes at work in cosmic sources, processes that produce linearly polarised emission, each of which with different polarisation fractions. The HARPO Collaboration has designed, built and characterised on beam a gas-TPC active target with which we have demonstrated for the first time the polarimetry of a linearly polarised MeV γ-ray beam, from the analysis of the conversions to e+e− pairs.

KW - Gas detector

KW - Pair production

KW - Polarimeter

KW - TPC

KW - Telescope

KW - γ-rays

UR - https://www.scopus.com/pages/publications/85055046900

U2 - 10.1016/j.nima.2018.10.016

DO - 10.1016/j.nima.2018.10.016

M3 - Review article

AN - SCOPUS:85055046900

SN - 0168-9002

VL - 936

SP - 405

EP - 407

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

ER -

HARPO, a gas TPC active target for high-performance γ-ray astronomy; demonstration of the polarimetry of MeV γ-rays converting to e⁺e⁻ pair

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Keywords

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