[en] Repository for spent ionizing irradiation ampoule sources (IRAS) on the basis of scientific-research reactor complex 'Baikal-1' was established and put into operation in 1995. It is meant for placing for the long-term storage of spent IRAS delivered from different enterprises and institutions of the Republic of Kazakhstan. Earlier spent IRAS were sent for processing and storage to enterprises of Russian Federation. Activities on acceptance, transportation and placing for storage of the spent IRAS helped to improve essentially the ecology in many regions of Kazakhstan and to restart the activity in oncological centers. At present there was accepted and placed into the repository more than 16,000 IRAS and among them 27 sources with oncological activity more than 2,000 Ci every. (author)

[en] Depository of ampoule sources of ionizing radiation (ASIR) on the basis of stand complex Baikal-I was founded an put into operation in 1995. It is intended for prolonged storage of the spent ASIR from a different institutions of Kazakhstan. To the present time a more than 10000 spent ASIR with activity more than 2000 Ci were taken and placed for storage

[en] In this article there is information about achieved in 2005 main results of realization of the Republic Budget Program 011 'Providing of Radiation Safety' in the part 'Accomplishment of Radiation Survey of territories around ICMF radioactive waste disposal, factory sections and Pervomayskiy settlement, and Removal and Disposal of Irtyshskiy Chemical-Metallurgical Factory's ionizing radiation sources and radioactive wastes from there'. (author)

[en] The LUMINEU project is a demonstrator experiment that will search for the neutrinoless double beta decay of the isotope ¹⁰⁰Mo embedded in zinc molybdate (ZnMoO₄) scintillating bolometers. In this context, a zinc molybdate crystal boule enriched in ¹⁰⁰Mo to 99.5 % with a mass of 171 g was grown for the first time by the low-thermalgradient Czochralski technique. The production cycle provided a high yield (the crystal boule mass was 84 % of the initial charge) and an acceptable level - around 4 % - of irrecoverable losses of the costly enriched material. Two crystals of 59 and 63 g, obtained from the enriched boule, were tested above ground at millikelvin temperatures as scintillating bolometers. They showed a good detection performance, equivalent to that of previously developed natural ZnMoO₄ detectors. These results pave the way to future sensitive searches based on the LUMINEU technology, capable of approaching and exploring the inverted hierarchy region of the neutrino mass pattern. (orig.)