Linearly Polarized <i>γ</i> Photon Generation from Unpolarized Electron Bunch Interacting with Laser
Highly polarized high-energy <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mi>γ</mi></semantics></math></inline-formula> photons demonstrate potential application in the efficient dete...
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2025-01-01
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| author | Yang He Burabigul Yakup Mamat Ali Bake |
| author_facet | Yang He Burabigul Yakup Mamat Ali Bake |
| author_sort | Yang He |
| collection | DOAJ |
| description | Highly polarized high-energy <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mi>γ</mi></semantics></math></inline-formula> photons demonstrate potential application in the efficient detection of strong-field quantum electrodynamics effects. Currently, polarized <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mi>γ</mi></semantics></math></inline-formula>-rays are mostly generated in conventional particle accelerators, which are typically huge and expensive. This study proposes a scheme for generating linearly polarized <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mi>γ</mi></semantics></math></inline-formula> photons from the interaction of a GeV-level unpolarized electron bunch with currently available laser pulses at moderate intensity. We investigate the scheme by considering the electron bunch of various initial energies and various laser intensities using two-dimensional particle-in-cell simulation and the theory of quantum electrodynamics. Results show that GeV-level linearly polarized <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mi>γ</mi></semantics></math></inline-formula> photons were generated from the interaction with a high polarization degree of <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mn>63</mn><mo>%</mo></mrow></semantics></math></inline-formula> and brightness of <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mn>1.8</mn><mo>×</mo><msup><mn>10</mn><mn>21</mn></msup><mspace width="3.33333pt"></mspace><mi>photons</mi><mo>/</mo><mrow><mo stretchy="false">(</mo><mi mathvariant="normal">s</mi><mspace width="3.33333pt"></mspace><msup><mi>mm</mi><mn>2</mn></msup><mspace width="3.33333pt"></mspace><msup><mi>mrad</mi><mn>2</mn></msup><mspace width="3.33333pt"></mspace><mn>0.1</mn><mspace width="3.33333pt"></mspace><mo>%</mo><mspace width="3.33333pt"></mspace><mspace width="4pt"></mspace><mi>bandwidth</mi><mrow><mo>(</mo><mi>BW</mi><mo>)</mo></mrow><mo stretchy="false">)</mo></mrow></mrow></semantics></math></inline-formula> at 1 GeV. Moreover, it is also shown that the photon generation rate was enhanced with higher laser intensity and electron bunch energy, whereas the polarization degree decreased with higher laser intensities. Our scheme can be realized experimentally at currently available laser wakefield electron acceleration facilities. |
| format | Article |
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| institution | Kabale University |
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| spelling | doaj-art-f2d5761fbbc7411b913e84dfc3ee128f2025-01-10T13:15:42ZengMDPI AGApplied Sciences2076-34172025-01-0115148110.3390/app15010481Linearly Polarized <i>γ</i> Photon Generation from Unpolarized Electron Bunch Interacting with LaserYang He0Burabigul Yakup1Mamat Ali Bake2Xinjiang Key Laboratory of Solid State Physics and Devices, School of Physics Science and Technology, Xinjiang University, Urumqi 830017, ChinaXinjiang Key Laboratory of Solid State Physics and Devices, School of Physics Science and Technology, Xinjiang University, Urumqi 830017, ChinaXinjiang Key Laboratory of Solid State Physics and Devices, School of Physics Science and Technology, Xinjiang University, Urumqi 830017, ChinaHighly polarized high-energy <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mi>γ</mi></semantics></math></inline-formula> photons demonstrate potential application in the efficient detection of strong-field quantum electrodynamics effects. Currently, polarized <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mi>γ</mi></semantics></math></inline-formula>-rays are mostly generated in conventional particle accelerators, which are typically huge and expensive. This study proposes a scheme for generating linearly polarized <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mi>γ</mi></semantics></math></inline-formula> photons from the interaction of a GeV-level unpolarized electron bunch with currently available laser pulses at moderate intensity. We investigate the scheme by considering the electron bunch of various initial energies and various laser intensities using two-dimensional particle-in-cell simulation and the theory of quantum electrodynamics. Results show that GeV-level linearly polarized <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mi>γ</mi></semantics></math></inline-formula> photons were generated from the interaction with a high polarization degree of <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mn>63</mn><mo>%</mo></mrow></semantics></math></inline-formula> and brightness of <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mn>1.8</mn><mo>×</mo><msup><mn>10</mn><mn>21</mn></msup><mspace width="3.33333pt"></mspace><mi>photons</mi><mo>/</mo><mrow><mo stretchy="false">(</mo><mi mathvariant="normal">s</mi><mspace width="3.33333pt"></mspace><msup><mi>mm</mi><mn>2</mn></msup><mspace width="3.33333pt"></mspace><msup><mi>mrad</mi><mn>2</mn></msup><mspace width="3.33333pt"></mspace><mn>0.1</mn><mspace width="3.33333pt"></mspace><mo>%</mo><mspace width="3.33333pt"></mspace><mspace width="4pt"></mspace><mi>bandwidth</mi><mrow><mo>(</mo><mi>BW</mi><mo>)</mo></mrow><mo stretchy="false">)</mo></mrow></mrow></semantics></math></inline-formula> at 1 GeV. Moreover, it is also shown that the photon generation rate was enhanced with higher laser intensity and electron bunch energy, whereas the polarization degree decreased with higher laser intensities. Our scheme can be realized experimentally at currently available laser wakefield electron acceleration facilities.https://www.mdpi.com/2076-3417/15/1/481polarized γ photonlaser electron beam interactionPIC simulation |
| spellingShingle | Yang He Burabigul Yakup Mamat Ali Bake Linearly Polarized <i>γ</i> Photon Generation from Unpolarized Electron Bunch Interacting with Laser Applied Sciences polarized γ photon laser electron beam interaction PIC simulation |
| title | Linearly Polarized <i>γ</i> Photon Generation from Unpolarized Electron Bunch Interacting with Laser |
| title_full | Linearly Polarized <i>γ</i> Photon Generation from Unpolarized Electron Bunch Interacting with Laser |
| title_fullStr | Linearly Polarized <i>γ</i> Photon Generation from Unpolarized Electron Bunch Interacting with Laser |
| title_full_unstemmed | Linearly Polarized <i>γ</i> Photon Generation from Unpolarized Electron Bunch Interacting with Laser |
| title_short | Linearly Polarized <i>γ</i> Photon Generation from Unpolarized Electron Bunch Interacting with Laser |
| title_sort | linearly polarized i γ i photon generation from unpolarized electron bunch interacting with laser |
| topic | polarized γ photon laser electron beam interaction PIC simulation |
| url | https://www.mdpi.com/2076-3417/15/1/481 |
| work_keys_str_mv | AT yanghe linearlypolarizedigiphotongenerationfromunpolarizedelectronbunchinteractingwithlaser AT burabigulyakup linearlypolarizedigiphotongenerationfromunpolarizedelectronbunchinteractingwithlaser AT mamatalibake linearlypolarizedigiphotongenerationfromunpolarizedelectronbunchinteractingwithlaser |