- Conference date: 22-27 July 1999
- Location: Sendai (Japan)
The absolute photoionization cross section for the astrophysically important ion has been measured for the first time thus allowing a test of the predicted cross section from the Opacity Project. The measurements are performed with a new ion-photon merged beam setup at the ASTRID storage ring utilizing an undulator beam line. In addition to the predicted and autoionizing resonances, the states which are not included in the theoretical predictions also contribute significantly to the ionization yield below the limit. The cross section is determined with a precision of 10% and lies 5–25% below the theoretical prediction at 24–37 eV.
MOST READ THIS MONTH
MOST CITED THIS MONTH
Article metrics loading...