A multicharge ion source (Supernanogan) for the OLIS facility at ISAC/TRIUMF.

The Off-Line Ion Source (OLIS) [K. Jayamanna, D. Yuan, T. Kuo, M. MacDonald, P. Schmor, and G. Dutto, Rev. Sci. Instrum. 67, 1061 (1996); K. Jayamanna, Rev. Sci. Instrum. 79, 02711 (2008)] facility consists of a high voltage terminal containing a microwave cusp ion source, either a surface ion source or a hybrid surface-arc discharge ion source [K. Jayamanna and C. Vockenhuber, Rev. Sci. Instrum. 79, 02C712 (2008)], and an electrostatic switch that allows the selection of any one of the sources without mechanical intervention. These sources provide a variety of +1 beams up to mass 30 for Isotope Separator and ACcelerator (ISAC) [R. E. Laxdal, Nucl. Instrum. Methods Phys. Res. B 204, 400 (2003)] experiments, commissioning the accelerators, setting up the radioactive experiments, and for tuning the beam lines. The radio frequency quadrupole (RFQ) [M. Marchetto, Z. T. Ang, K. Jayamanna, R. E. Laxdal, A. Mitra, and V. Zvyagintsev, Eur. Phys. J. Spec. Top. 150, 241 (2005)] injector accelerator is a constant velocity machine designed to accept only 2 keV/u and the source extraction energy is limited to 60 kV. Further stripping is then needed downstream of the RFQ to inject the beam into the drift tube linac [M. Marchetto, Z. T. Ang, K. Jayamanna, R. E. Laxdal, A. Mitra, and V. Zvyagintsev, Eur. Phys. J. Spec. Top. 150, 241 (2005)] accelerator that requires A/q up to 6. Base on this constraints a multicharge ion source capable to deliver beams above mass 30 with A/q up to 6 was needed in order to reach full capability of the ISAC facility. A Supernanogan [C. Bieth et al., Nucleonika 48, S93 (2003)] multicharge ion source was then purchased from Pantechnik and was installed in the OLIS terminal. Commissioning and performance of the Supernanogan with some results such as emittance dependence of the charge states as well as charge state efficiencies are presented.

[Typing of rotavirus strains using electrophoresis]. / Elektroforetska tipizacija sojeva rotavirusa.

Polyacrylamide gels electrophoresis was used in the analysis of rotavirus genome strains isolated in the regions of Belgrade and Nis in the period 1987-1991. Ten samples were examined and the same type of motility was found.

Cysticercosis cerebri involving the lateral ventricle.

Cysticercosis cerebri involving the lateral ventricle is very rare. Two cases with such localization are presented. One of the patients, with occlusion of the foramen of Monro, was successfully treated by operation. A larval form in the lateral ventricle was revealed incidentally at autopsy in the second patient after rupture of a large basilar artery aneurysm.

[Microvascular extracranil bypass. Our first experience]. / Mikrovaskularni ekstrakranijalni bypass. Nasa prva iskustva.

From the experiments presented by the authors the following conclusions could be got: 1. The microvascular arterial BY-PASS is a procedure, which has probably got a preventive significance, especially for cases with TRANSISTRORY ISCHEMIC ATTACK (TIA) and REVERSIBLE ISCHEMIC NEUROLOGICAL DEFICIT (RIND), as well as for the cerebrovascular insult with a mild and moderate neurological deficit. 2) All by itself, (the microvascular arterial by-pass) has got a very low mortality and morbidity, or better said, it carries with itself the risk as any other operation does. 3) The percentage of the preserved anastomoses is quite high. 4) Most probably persons with serious neurological deficit after a complete vascular insult, and persons with an acute vascular insult, will have no advantage of the arterial anastomosis.