Dominance of the radiative cascades in the cross section and circular polarization of x-ray radiation
Dominance of the radiative cascades in the cross section and circular polarization of x-ray radiation
复制标题
X 射线辐射横截面和圆偏振中辐射级联的主导地位
DOI:
10.1088/0953-4075/48/24/245201
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发表时间:
2015-10
影响因子:
1.6
通讯作者:
Zeng, J. L.
中科院分区:
文献类型:
--
作者:
Chen, Z. B.;Zeng, J. L.
The radiative cascade typically appears as a somewhat small correction to the direct impact process. We demonstrate here, however, that for the longitudinally-polarized electron impact excitation of highly charged ions, radiative cascades may play a significant role that can change the cross section and circular polarization of the emitted x-ray radiation qualitatively. This conclusion is verified by taking the 1s2 (J = 0) → ?> 1s2s1/2 (J = 1) excitation of He-like Fe 24 + , ?> Ge 30 + , ?> Mo 40 + , ?> Ag 45 + , ?> and W 72 + ?> ions as examples. For these ions, the dominant cascade channels from high-lying levels 1 snp (n = 2, 3, 4, 5, 6) will strongly dominate the direct excitation process and greatly modify the Mf = −1 magnetic sublevel cross sections, as well as leading to a considerable change in the expected circular polarizations of the x-ray emission pattern.
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影响因子:
8.6
作者:
Edward S. Henderson;Beiersdorfer;Bennett;Chantrenne;Knapp;Marrs;Schneider;Wong;Doschek;Seely;Brown;Lavilla;Dubau;Levine
通讯作者:
Edward S. Henderson;Beiersdorfer;Bennett;Chantrenne;Knapp;Marrs;Schneider;Wong;Doschek;Seely;Brown;Lavilla;Dubau;Levine
DOI:
10.1103/physreva.46.2449
发表时间:
1992-09
期刊:
Physical review. A, Atomic, molecular, and optical physics
影响因子:
--
作者:
M. Inal;Hong Lin Zhang;DH Sampson
通讯作者:
M. Inal;Hong Lin Zhang;DH Sampson
DOI:
10.1103/physreva.47.4794
发表时间:
1993-06
期刊:
Physical review. A, Atomic, molecular, and optical physics
影响因子:
--
作者:
Inal;Dubau
通讯作者:
Inal;Dubau
影响因子:
8.6
作者:
S. Fritzsche;A. Surzhykov;T. Stöhlker
通讯作者:
S. Fritzsche;A. Surzhykov;T. Stöhlker
影响因子:
3.5
作者:
Jiang Jun;Dong Chen-zhong;Xie Lu-you;W. Jianguo;Y. Jun;S. Fritzsche
通讯作者:
Jiang Jun;Dong Chen-zhong;Xie Lu-you;W. Jianguo;Y. Jun;S. Fritzsche