Related Experiment Video
Updated: Sep 19, 2026

Automated 90Sr Separation and Preconcentration in a Lab-on-Valve System at Ppq Level
Published on: June 6, 2018
Detection, identification, and management of alpha-emitting radioactive waste in scrap metal: a case study from
Blerim Rrakaqi1, Ylli Kaçiu2, Shyqeri Dumani3
1Faculty of Medical Sciences, Alma Mater Europaea Campus College ``Rezonanca'', Glloku te Shelgjet, Veternik, 10000 Prishtina, Kosovo.
Abstract:
Detection and management of alpha (α)-emitting radioactive sources in scrap metal present a significant challenge for radiological safety, particularly in countries lacking infrastructure for the final disposal of radioactive waste. This paper presents a case study from Kosovo addressing the detection, identification, dose measurement, and isolation of an alpha-emitting radioactive source discovered in scrap metal. Identification was performed using portable radiation survey instruments and gamma spectrometry, confirming the presence of thorium-232 and uranium-232. Measurements indicated a count rate of ~2000 cps and a maximum ambient dose rate of 6.51 μSv/h measured at an approximate distance of 5 cm from the radioactive source prior to isolation and concrete filling. To reduce exposure and contamination risks, the source was isolated in a 200-L metal drum filled with reinforced concrete. Dose rate mapping performed before and after isolation demonstrated a significant reduction in radiation levels, with a maximum reduction factor of 4.86, indicating a measurable reduction in ambient dose rate following temporary isolation.
Related Concept Videos
Biological Effects of Radiation
Atomic Emission Spectroscopy: Overview
Atomic Emission Spectroscopy: Lab
Imaging Studies II: Positron Emission Tomography and Scintigraphy
Fundamental Principles of PET
Nuclear Transmutation
Types of Radioactivity
Alpha (α) decay is the emission of an α particle from the nucleus. For example, polonium-210 undergoes α decay:
