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High energy heavy ions were generated in laser produced plasma at moderate laser energy, with a large focal spot size of 0.5 mm diameter. The laser beam was provided by the 10 GW GSI-NHELIX laser systems, and the ions were observed spectroscopically in status nascendi with high spatial and spectral resolution. Due to the focal geometry, plasma jet was… (More)
The first high energy laser system that became operational at GSI is the " nanosecond high energy laser for heavy ion experiments " (nhelix). This system has recently been improved significantly. Due to major changes in the system layout, the quality in terms of temporal and spatial beam homogeneity was improved, while at the same time the output energy was… (More)
Neutrons are unique to diagnose materials and excite nuclear reactions with a large field of applications. For the first time a new ion acceleration mechanism (BOA) has been used to generate intense, directed neutron beams.
Generating circular polarization for ultra-intense lasers requires solutions beyond traditional transmissive waveplates which have insufficient bandwidth and pose nonlinear phase (B-integral) problems. We demonstrate a reflective design employing 3 metallic mirrors to generate circular polarization.
To investigate the space charge neutralization effects in the extraction gap of a laser ion source (LIS)  a high current density electron beam with low energy spread is needed. The transient hollow-cathode discharge (THCD) source  has the required characteristics. The THCD is a pulsed hollow cathode glow discharge that operates at low gas pressure… (More)
Dibenz(a,h)anthracene (DBA), a carcinogenic, polycyclic aromatic hydrocarbon ubiquitous in the environment, is metabolized by the hepatic microsomal fraction of immature Sprague-Dawley rats pretreated with Aroclor 1254 to 27 ethyl acetate-extractable metabolites. More than half of these metabolites (51%) consisted of trans-1,2-; -3,4-; and -5,6-dihydrodiols… (More)