Doubly excited states in Helium close to the double ionization threshold:: Angular and energy resolved partial cross sections

被引：3

作者：

Czasch, A. ^{[1
]}

Schoeffler, M. ^{[1
]}

Jahnke, T. ^{[1
]}

Schoessler, S. ^{[1
]}

Hattass, M. ^{[1
]}

Weber, Th. ^{[1
]}

Weckenbrock, M. ^{[1
]}

Titze, J. ^{[1
]}

Wimmer, C. ^{[1
]}

Staudte, A. ^{[1
]}

Kammer, S. ^{[1
]}

Voss, S. ^{[1
]}

Doerner, R. ^{[1
]}

Schmidt-Boecking, H. ^{[1
]}

Rost, J. M. ^{[2
]}

Schneider, T. ^{[2
]}

Liu, C. ^{[3
]}

机构：

[1] Univ Frankfurt, Inst Kernphys, D-6000 Frankfurt, Germany

[2] Max Planck Inst Phys Komplexer Syst, Dresden, Germany

[3] Kansas State Univ, Dept Phys, Manhattan, KS 66506 USA

来源：

PHYSICA SCRIPTA | 2004年 / T110卷

关键词：

D O I：

10.1238/Physica.Topical.110a00141

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

This is a report about a novel experiment on double excitation of Helium by absorption of synchrotron radiation close to the double ionization threshold at 79 eV. Partial cross-sections for single-ionization from 78.15 eV up to 78,9 eV (photon energy) with an energy resolution of 3 meV have been measured. The technique described in this article allows for an angular and energy resolved measurement of low energy electrons with a high detection efficiency due to an angular acceptance of 4 pi solid angle.

引用

页码：141 / 143

页数：3

共 50 条

[1] Theoretical photoionization partial cross sections and angular distribution parameters of doubly excited helium
Jiang, YH
Püttner, R
Kaindl, G
JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, 2005, 38 (13) : 2157 - 2171
[2] Partial cross sections of doubly excited helium below the ionization threshold I7 -: art. no. 042706
Jiang, YH
Püttner, R
Hentges, R
Viefhaus, J
Poiguine, M
Becker, U
Rost, JM
Kaindl, G
PHYSICAL REVIEW A, 2004, 69 (04): : 042706 - 1
[3] Partial photoionization cross sections and angular distributions for double excitation of Helium up to the N=13 threshold
Czasch, A.
Schoeffler, M.
Hattass, M.
Schoessler, S.
Jahnke, T.
Weber, Th.
Staudte, A.
Titze, J.
Voss, S.
Grisenti, R. E.
Jagutzki, O.
Schmidt, L. Ph.
Schmidt-Boecking, H.
Doerner, R.
Rost, J. M.
Schneider, T.
Liu, C.-N.
Bray, I.
Kheifets, A. S.
Bartschat, K.
JOURNAL OF ELECTRON SPECTROSCOPY AND RELATED PHENOMENA, 2007, 156 : XLV - XLV
[4] DOUBLY DIFFERENTIAL CROSS-SECTIONS FOR DOUBLE IONIZATION OF HELIUM BY FAST PROTONS
SNYDER, R
PHYSICAL REVIEW A, 1975, 11 (03): : 1105 - 1107
[5] Doubly differential cross sections for the proton-impact double ionization of helium
Foster, M.
Colgan, J.
Pindzola, M. S.
JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, 2008, 41 (11)
[6] Energy states of doubly excited helium
Wu, TY
PHYSICAL REVIEW, 1934, 46 (03): : 0239 - 0239
[7] Highly doubly excited states of planar helium: Fluctuations in photoionization cross sections
Eiglsperger, Johannes
Madronero, Javier
PHYSICAL REVIEW A, 2009, 80 (02):
[8] Angular distribution of the fluorescence of helium doubly photo-excited states converging on the He+(N=2) ionization threshold
Lambourne, JG
Penent, F
Lablanquie, P
Hall, RI
Ahmad, M
Zitnik, M
Bucar, K
Hammond, P
Stranges, S
Richter, R
Alagia, M
Coreno, M
JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, 2003, 36 (21) : 4351 - 4359
[9] Comment on "Partial photoionization cross sections and angular distributions for double excitation of helium up to the N=13 threshold"
Malegat, L.
PHYSICAL REVIEW LETTERS, 2007, 98 (10)
[10] Partial photoionization cross sections and photoelectron angular distributions for double excitations up to the N=5 threshold in helium
Menzel, A
Frigo, SP
Whitfield, SB
Caldwell, CD
Krause, MO
PHYSICAL REVIEW A, 1996, 54 (03): : 2080 - 2090

← 1 2 3 4 5 →