Abstract
The possibility of focusing parametric x rays (PXRs) without x-ray optics has been shown. Parametric x rays are emitted by channeled relativistic charged particles moving along a bent crystal. Parametric x rays emitted from the entire length of the bent crystal are focused at two points on the bending axis of the crystal. The Huygens picture of formation of focused PXRs is given. The width of the spectral peak of this radiation has been estimated. Certain properties of focused PXRs are estimated for typical experimental conditions, and possibilities for the application of focused PXRs are discussed. An experiment for the observation of focused PXRs has been proposed. It has been shown that focused PXRs can be observed for a proton energy of several tens of GeVs or higher.
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References
E. N. Tsyganov, Fermilab TM-682 (Batavia, 1976).
V. M. Biryukov, Yu. A. Chesnokov, and V. I. Kotov, Usp. Fiz. Nauk 164, 1017 (1994) [Phys. Usp. 37, 937 (1994)].
E. Tsyganov, in The Future of Accelerator Physics, Ed. by T. Tajima (AIP, New York, 1996), AIP Conf. Proc., Vol. 356, p. 73.
A. A. Asseev and M. Yu. Gorin, Nucl. Instrum. Methods Phys. Res. B 119, 210 (1996).
Yu. A. Chesnokov, Nucl. Instrum. Methods Phys. Res. B 119, 163 (1996).
K. Elsener, G. Fidecaro, M. Gyr, et al., Nucl. Instrum. Methods Phys. Res. B 119, 215 (1996).
A. Baurichter, K. Kirsebom, R. Medenwaldt, et al., Nucl. Instrum. Methods Phys. Res. B 119, 172 (1996).
N. Doble, L. Gatigton, and P. Grafstrom, Nucl. Instrum. Methods Phys. Res. B 119, 181 (1996).
C. T. Murphy, R. Carrigan, D. Chen, et al., Nucl. Instrum. Methods Phys. Res. B 119, 231 (1996).
M. L. Ter-Mikaelian, High-Energy Electromagnetic Processes in Condensed Media (Akad. Nauk Arm. SSR, Yerevan, 1969; Wiley, New York, 1972).
M. L. Ter-Mikaelian, Usp. Fiz. Nauk 171, 597 (2001) [Phys. Usp. 44, 571 (2001)].
A. V. Shchagin and X. K. Maruyama, in Accelerator-based Atomic Physics Technique and Applications, Ed. by S. M. Shafroth and J. C. Austin (AIP Press, New York, 1997), p. 279.
P. Rullhusen, X. Artru, and P. Dhez, Novel Radiation Sources Using Relativistic Electrons (World Sci., Singapore, 1998).
A. V. Shchagin, in Electron-Photon Interactions in Dense Media, Ed. by H. Wiedemann (Kluwer Academic, Dordrecht, 2002), NATO Sci. Ser. II: Math., Phys. Chem., Vol. 49, p. 133.
V. P. Afanasenko, V. G. Baryshevsky, R. F. Zuevsky, et al., Phys. Lett. A 170, 315 (1992).
A. V. Shchagin, physics/0404137 (2004). Correction: The number of quanta for PXR(12 00) at proton energy 450 GeV in Table 1 must be 3.98×10−8 instead of 1.28×10−7.
R. B. Fiorito, D. W. Rule, M. A. Piestrup, et al., Phys. Rev. E 51, R2759 (1995).
A. V. Shchagin, Phys. Lett. A 247, 27 (1998).
A. V. Shchagin, Phys. Lett. A 262, 383 (1999).
A. V. Shchagin, V. I. Pristupa, and N. A. Khizhnyak, Phys. Lett. A 148, 485 (1990).
K.-H. Brenzinger, B. Limburg, H. Backe, et al., Phys. Rev. Lett. 79, 2462 (1997).
A. V. Shchagin and N. A. Khizhnyak, Nucl. Instrum. Methods Phys. Res. B 119, 115 (1996).
T. Ikeda, Y. Matsuda, H. Nitta, and Y. H. Ohtsuki, Nucl. Instrum. Methods Phys. Res. B 115, 380 (1996).
A. V. Shchagin, V. I. Pristupa, and N. A. Khizhnyak, Nucl. Instrum. Methods Phys. Res. B 48, 9 (1994).
A. V. Shchagin, N. A. Khizhnyak, R. B. Fiorito, et al., Nucl. Instrum. Methods Phys. Res. B 173, 154 (2001).
A. V. Shchagin, in The Future of Accelerator Physics, Ed. by T. Tajima (AIP, New York, 1996), AIP Conf. Proc., Vol. 356, p. 359.
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Translated from Pis’ma v Zhurnal Éksperimental’no\(\overset{\lower0.5em\hbox{$\smash{\scriptscriptstyle\smile}$}}{l} \) i Teoretichesko\(\overset{\lower0.5em\hbox{$\smash{\scriptscriptstyle\smile}$}}{l} \) Fiziki, Vol. 80, No. 7, 2004, pp. 535–540.
Original Russian Text Copyright © 2004 by Shchagin.