Relativistic Doppler-boosted γ-rays in High Fields

被引：14

作者：

Capdessus, Remi ^{[1
]}

King, Martin ^{[1
]}

Del Sorbo, Dario ^{[2
]}

Duff, Matthew ^{[1
]}

Ridgers, Christopher P. ^{[2
]}

McKenna, Paul ^{[1
]}

机构：

[1] Univ Strathclyde, SUPA Dept Phys, Glasgow G4 0NG, Lanark, Scotland

[2] Univ York, Dept Phys, York Plasma Inst, York YO10 5DQ, N Yorkshire, England

来源：

SCIENTIFIC REPORTS | 2018年 / 8卷

基金：

英国工程与自然科学研究理事会;

关键词：

LASER; EMISSION;

D O I：

10.1038/s41598-018-27122-9

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

The relativistic Doppler effect is one of the most famous implications of the principles of special relativity and is intrinsic to moving radiation sources, relativistic optics and many astrophysical phenomena. It occurs in the case of a plasma sail accelerated to relativistic velocities by an external driver, such as an ultra-intense laser pulse. Here we show that the relativistic Doppler effect on the high energy synchrotron photon emission (similar to 10 MeV), strongly depends on two intrinsic properties of the plasma (charge state and ion mass) and the transverse extent of the driver. When the moving plasma becomes relativistically transparent to the driver, we show that the gamma-ray emission is Doppler-boosted and the angular emission decreases; optimal for the highest charge-to-mass ratio ion species (i.e. a hydrogen plasma). This provides new fundamental insight into the generation of-y-rays in extreme conditions and informs related experiments using multi-petawatt laser facilities.

引用

页数：12

共 53 条

[1] Contemporary particle-in-cell approach to laser-plasma modelling [J].

Arber, T. D. ;

Bennett, K. ;

Brady, C. S. ;

Lawrence-Douglas, A. ;

Ramsay, M. G. ;

Sircombe, N. J. ;

Gillies, P. ;

Evans, R. G. ;

Schmitz, H. ;

Bell, A. R. ;

Ridgers, C. P. .

PLASMA PHYSICS AND CONTROLLED FUSION, 2015, 57 (11)

[2]

BAIER VN, 1968, SOV PHYS JETP-USSR, V26, P854

[3] Possibility of Prolific Pair Production with High-Power Lasers [J].

Bell, A. R. ;

Kirk, John G. .

PHYSICAL REVIEW LETTERS, 2008, 101 (20)

[4] Is gamma-ray burst afterglow emission intrinsically anisotropic? [J].

Beloborodov, A. M. ;

Daigne, F. ;

Mochkovitch, R. ;

Uhm, Z. L. .

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2011, 410 (04) :2422-2427

[5] Laser Absorption in Relativistically Underdense Plasmas by Synchrotron Radiation [J].

Brady, C. S. ;

Ridgers, C. P. ;

Arber, T. D. ;

Bell, A. R. ;

Kirk, J. G. .

PHYSICAL REVIEW LETTERS, 2012, 109 (24)

[6] On the design of experiments for the study of extreme field limits in the interaction of laser with ultrarelativistic electron beam [J].

Bulanov, S. V. ;

Esirkepov, T. Zh. ;

Hayashi, Y. ;

Kando, M. ;

Kiriyama, H. ;

Koga, J. K. ;

Kondo, K. ;

Kotaki, H. ;

Pirozhkov, A. S. ;

Bulanov, S. S. ;

Zhidkov, A. G. ;

Chen, P. ;

Neely, D. ;

Kato, Y. ;

Narozhny, N. B. ;

Korn, G. .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 2011, 660 (01) :31-42

[7] Unlimited Ion Acceleration by Radiation Pressure [J].

Bulanov, S. V. ;

Echkina, E. Yu. ;

Esirkepov, T. Zh. ;

Inovenkov, I. N. ;

Kando, M. ;

Pegoraro, F. ;

Korn, G. .

PHYSICAL REVIEW LETTERS, 2010, 104 (13)

[8] Relativistic laser-matter interaction and relativistic laboratory astrophysics [J].

Bulanov, S. V. ;

Esirkepov, T. Zh. ;

Habs, D. ;

Pegoraro, F. ;

Tajima, T. .

EUROPEAN PHYSICAL JOURNAL D, 2009, 55 (02) :483-507

[9] Lorentz-Abraham-Dirac versus Landau-Lifshitz radiation friction force in the ultrarelativistic electron interaction with electromagnetic wave (exact solutions) [J].

Bulanov, Sergei V. ;

Esirkepov, Timur Zh. ;

Kando, Masaki ;

Koga, James K. ;

Bulanov, Stepan S. .

PHYSICAL REVIEW E, 2011, 84 (05)

[10] INTERACTION OF AN ULTRASHORT, RELATIVISTICALLY STRONG LASER-PULSE WITH AN OVERDENSE PLASMA [J].

BULANOV, SV ;

NAUMOVA, NM ;

PEGORARO, F .

PHYSICS OF PLASMAS, 1994, 1 (03) :745-757

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