Coincident energy and angular distributions in xenon 4d_5/2inner-shell double photoionization

Abstract

Abstract.We report on measurements of the triply differential cross section for the 4d 5 2 inner-shell photoionization in Xenon followed by N 5 O 2 3 O 2 3 Auger decay using electronelectron coincidence spectroscopy. The experimental setup made it possible to obtain the first coincident angular distributions for the 1 D 2 and 3 P 2 final states at a photon energy of 97.45 eV.

Low-energy photoelectron dynamics in Kr3d5/2photoionization followed by Auger decay

“…The 4d 5/2 photoionization in xenon with subsequent N 5 -O 2,3 O 2,3 Auger decay was selected to study the energy and/or angular distributions in Refs. [1][2][3][4][5][6][7]. For this system, the initial energy of the Auger electron E 2 was ∼30 eV, and the Auger width was ∼0.12 eV.…”

“…The physical process of photoabsorption followed by sequential double ionization has been studied extensively in the past decades [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17]. The first electron emitted from the nucleus is called the photoelectron because its ionization is due to photoabsorption.…”

“…During the past decades, this problem has been investigated within different atomic systems, namely, 4d 3/2,5/2 photoionization following N -OO Auger decay in Xe [1][2][3][4][5][6][7], Ar 3d photoionization followed by Auger decay [12,13], 1s or 2s photoionization with subsequent Auger decay in Ne [8][9][10][11]17], and 3d 5/2,3/2 photoionization followed by Auger decay in Kr [15,16]. These papers covered a wide energy range.…”

“…The first coincident angular distribution was measured in Ref. [6], where E 1 was 29.9 eV. Sheinerman et al experimentally and theoretically investigated the PCI phenomena with the same atomic system in Ref.…”

A New Spin on Photoemission Spectroscopy

“…119,120,121 The same group at the ALS also developed a TOF experiment with four TOF systems at various angles capable of acquiring coincidence data between the analyzers. 122 This instrument also capitalized on the simple mechanical nature of basic TOF analyzers by incorporating small 12.5 cm analyzers, all rotatable in-situ, and maximizing resolving power to ∼ 5% by utilizing a 2-stage retarding potential.…”