Nuclear excitation by electron transition on 197Au by photoionization around the K-absorption edge

被引：27

作者：

Kishimoto, S. ^{[1
]}

Yoda, Y.

Kobayashi, Y.

Kitao, S.

Haruki, R.

Masuda, R.

Seto, M.

机构：

[1] KEK, Inst Mat Struct Sci, Tsukuba, Ibaraki 3050801, Japan

[2] Japan Synchroton Radiat Res Inst, Sayo, Hyogo 6795198, Japan

[3] Kyoto Univ, Inst Res Reactor, Sennan, Osaka 5900494, Japan

[4] Kyushu Univ, Res & Dev Ctr Higher Educ, Fukuoka 1068558, Japan

来源：

PHYSICAL REVIEW C | 2006年 / 74卷 / 03期

关键词：

D O I：

10.1103/PhysRevC.74.031301

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

We have observed nuclear excitation by electron transition (NEET) on Au-197 by photoionization using synchrotron monochromatic x-rays around the K-absorption edge. By scanning the energy of the incident photons, we found that the NEET events had a steep edge at an energy (40 +/- 2)eV higher than the K edge; its width (FWHM) was 14 +/- 9 eV, quite narrower than that of the K edge. A fine structure of the NEET events was also observed at photon energies higher than the NEET edge. This behavior is explained by the atomic transition from a particular K-hole state to the M-1-hole state, which resonantly excites the nucleus, and by an outgoing photoelectron with energy conservation.

引用

页数：4

共 15 条

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