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PURPOSE Intravaginal or extravaginal spermatic cord torsion is a diagnostic challenge for the surgeon and radiologist. Color Doppler sonography can be inaccurate, leading to dangerous false-negative results. To date, no single reliable test has been able to provide 100% diagnostic accuracy. The direct visualization of the twisted cord during emergency high(More)
Premixed methane-air mixture is introduced at the center of two parallel circular quartz plates separated by a millimeter scale distance (<or= 5mm). Two plates are heated with an external heater to create a positive temperature gradient condition along the flow direction. The combustion characteristics of lean methane-air mixtures are investigated at(More)
The 20 MV, 217 MHz IH-DTL for the HIT facility has been assembled and mechanically aligned until July 2006. RF tuning of the 3.8 m long tank with 56 gaps has been done from April to October 2006. The beam commissioning at the HIT facility in Heidelberg was performed successfully in December 2006. Assembly Alignment plates had to be invented to adjust the(More)
The design of a compact 7 MeV/u, 217 MHz carbon in-jector linac for therapy facilities has been presented already in earlier reports [1]. In 2002 detailed specifications of the low energy beam transport line components like magnets, power supplies, beam diagnostics devices and vacuum components as well as of the ion source systems and of the linac rf system(More)
According to the Unilac upgrade program for the SHE research at GSI, a new high energy part of the High Charge State Injector (HLI) has to be worked out. One of the versions of this linac foresees the acceleration of the highly stripped ions with charge-to-mass ratio of 1/6 delivered from the existing HLI at 1.4 MeV/u. The output beam energy should allow(More)
HITRAP is a planned ion-trap facility for low-energy experiments with heavy, highly-charged ions at the ESR storage ring [1]. Ions up to U 92+ at 4 MeV/u will be delivered by the ESR and decelerated in the HITRAP facility down to 6 keV/u by an IH structure followed by an RFQ structure (Fig. 1). Afterwards, the ions will be trapped and cooled down to(More)