In this bachelor thesis, which is a part of the project RadioRoSo, we examine and analyze waste from Magnox power plants. These power plants were mostly situated in the Great Britain and they were operated between 1956 and 2015. The analyzed waste mainly consists of pieces of Magnox alloy AL80. Springs from alloy Nimonic 80A are also present in the waste and they are considered to be highly rad...

background: radiation shielding properties is an important for a material wish can be used the photon attenuation coefficients of clay produced using different rate of boron have been measured for the purpose of radioactive waste disposal. materials and methods: the measurement has been performed using gamma spectrometer contains nai (tl) detector at the photon energies of 662, 1173 and 1332 ke...

The COSINE-100 experiment has been operating with 106 kg of low-background NaI(Tl) detectors to test the results from DAMA/LIBRA experiment, which claims have observed dark matter. However, since background crystals used in is 2–3 times higher than that DAMA detectors, no conclusion regarding claimed observation could be reached. Therefore, we plan upgrade current next phase, COSINE-200, by usi...

We report a study of CsI(Tl) scintillator to assess its applicability in experiments to search for dark matter particles. Measurements of the mean scintillation pulse shapes due to nuclear and electron recoils have been performed. We find that, as with NaI(Tl), pulse shape analysis can be used to discriminate between electron and nuclear recoils down to 4 keV. However, the discrimination factor...

Sodium iodide crystal co-doped with thallium and lithium is a promising scintillator wide application prospects for dual gamma neutron detection. In this study, compact gamma/neutron detector was developed based on 2-inch NaI(Tl+Li) (NaIL) readout 8 × silicon photomultiplier (SiPM) array. Dedicated transimpedance amplifier circuit the SiPM The energy resolution response linearity array were eva...

One of the most important requirements for industrial pipelines is the leakage detection. In this paper, detection of leak and determination of its amount using radioactive tracer injection method has been simulated by Monte Carlo MCNP code. The detector array included two NaI (Tl) detectors which were located before and after the considered position, measure emitted gamma from radioactive trac...