Radiative electron capture to the continuum and the short-wavelength limit of electron-nucleus bremsstrahlung in 90A MeV U88 + ((1s2)(2s2))+N2 Collisions.
We have measured the continuum momentum distribution for radiative electron capture to the continuum (RECC) cusp electrons in 90A MeV U88+ + N2-->U88+ + N2 +* + ecusp(0 degrees ) + hnu (RECC) collisions. We demonstrate that x rays coincident with RECC cusp electrons originate from the short-wavelength limit of the electron-nucleus bremsstrahlung and explain the asymmetric cusp shape by comparison with theory within the relativistic impulse approximation.
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Max Planck Institut für Kernphysik, D-69117 Heidelberg, Germany.
Hagmann
S
S
Stöhlker
Th
T
Jakubassa-Amundsen
D H
DH
Kozhuharov
Ch
Ch
Wang
X
X
Gumberidze
A
A
Spillmann
U
U
Reuschl
R
R
Hess
S
S
Trotsenko
S
S
Banas
D
D
Bosch
F
F
Liesen
D
D
Moshammer
R
R
Ullrich
J
J
Dörner
R
R
Steck
M
M
Nolden
F
F
Beller
P
P
Rothard
H
H
Beckert
K
K
Franczak
B
B