TY - JOUR
T1 - Channeling radiation from relativistic electrons in a thin LiF crystal
T2 - When is a classical description valid?
AU - Bogdanov, O. V.
AU - Korotchenko, K. B.
AU - Pivovarov, Yu L.
AU - Tukhfatullin, T. A.
PY - 2008/9/1
Y1 - 2008/9/1
N2 - Calculation of channeling radiation from relativistic electrons under (1 1 1) planar channeling conditions in a LiF crystal is performed using both classical and quantum methods. The complicated shape of the periodic (1 1 1) planar potential allows the existence of a different number of discrete energy levels (quantum states) in the potential well formed by planes consisting of only Li atoms and the potential well consisting of only F atoms is large enough to apply the classical method. With increasing electrons energy, the classical method becomes valid to describe CR from under-barrier electrons in a deeper potential well, while one should still apply the quantum method to calculate CR from electrons in neighboring planes. Thus, the quantum feature of a CR spectrum from relativistic electrons maintains its quantum characteristics up to relativistic factors 1000.
AB - Calculation of channeling radiation from relativistic electrons under (1 1 1) planar channeling conditions in a LiF crystal is performed using both classical and quantum methods. The complicated shape of the periodic (1 1 1) planar potential allows the existence of a different number of discrete energy levels (quantum states) in the potential well formed by planes consisting of only Li atoms and the potential well consisting of only F atoms is large enough to apply the classical method. With increasing electrons energy, the classical method becomes valid to describe CR from under-barrier electrons in a deeper potential well, while one should still apply the quantum method to calculate CR from electrons in neighboring planes. Thus, the quantum feature of a CR spectrum from relativistic electrons maintains its quantum characteristics up to relativistic factors 1000.
KW - Channeling radiation
KW - LiF crystal
KW - Relativistic electrons
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U2 - 10.1016/j.nimb.2008.06.025
DO - 10.1016/j.nimb.2008.06.025
M3 - Article
AN - SCOPUS:50349101875
VL - 266
SP - 3858
EP - 3862
JO - Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
JF - Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
SN - 0168-583X
IS - 17
ER -