Marija Majer

T = 1 ISOSPIN EXCITATION SPECTRUM IN 10B

Isobaric analogues of three states in 10Be forming a rotational band with high moment of inertia are expected in 10B and 10C. This article reports a measurement of excitation spectrum in 10B obtained through 11B(3He,α)10B reaction. A T = 1 state is found on 11.3 MeV excitation energy. It is a possible candidate for the 4+ state of the analogue rotation band.

Acute whole-body low dose gamma irradiation does not affect humoral immunity in chicken

It has been documented that low-dose ionizing irradiation enhanced the immune response on both cellular and humoral immunity in mammals. In the present study three experiments were conducted to compare antibody titer against vaccinal strain of Newcastle disease virus after low-dose total body gamma irradiation in chickens. In all experiments, male Leghorn chicks were irradiated, on day 1 or 3 of life, with the dose of 0.05, 0.15, 0.30, 0.50 and 0.80 Gy gamma radiation. In two experiments, after irradiation, chicks were vaccinated with the commercial Newcastle disease vaccine by the nebulisation method. Blood samples were collected for serological analyses from day one or 7 up to day 28 in weekly interval, depending on experimental design. Specific serum anti- Newcastle disease virus antibodies were quantitated by hemagglutination inhibition assay. No significant effect on the level of hemagglutination inhibition maternal antibody titer and antibody titer against vaccinal Newcastle disease virus strain as well as on the antibody rate catabolism was found. The ionizing radiation used in the present experiment did not influence the humoral immune response in this light strain of chickens.

Analysis of T = 1 10B States Analogue to 10Be Cluster States

Current status of the search for T = 1 cluster states in 10Be, 10B and 10C is presented. The best known of the three, 10Be, has an established rotational band (6.18, 7.54 and 10.15 MeV) with unusually large moment of inertia. Search of their isobaric analogue in 10B is presented, with emphasis on 3He+11B reaction.