Experiments

Radioactive cesium-137 in mushrooms

For today article I have chosen something which could be of interest for mushroom pickers in our dear Europe. People over forty probably remember nuclear disaster in Soviet Union Chernobyl nuclear power plant on 26 April 1986. Lot of articles has been written on this topic. Somebody could say that it is more than 30 years ago, so what? Thing that is important to bear in mind is the fact, that lot of radioactive contamination from the accident is still spread around us. If we take a look at the

Radioactivity in Lutetium metal

Lutetium is silvery grey metal element belonging to the group of rare earth metals (lanthanides) as its last member which closes it. Unlike some other lanthanides, lutetium is relatively stable at dry air, but is readily oxidized in humid environment and at higher temperatures. Lutetium has highest hardness (Brinnel - 893 MPa), density (9.84 g/cm3) and melting point (1663 °C) of the lanthanides. In nature occurs as a mixture of two isotopes 175Lu and 176Lu with natural abundances 97.41 %

Measurement of beryllium-7 in rainwater

Beryllium is a steel grey hard and brittle metal with relatively low density, high thermal capacity and high sound conductivity. Due to its interesting physical-chemical characteristics, it has many uses in special materials used for example in aerospace applications or electronics. Main drawback of beryllium and its compounds is really high toxicity. For the beryllium, 12 isotopes is known. 9Be is the only stable isotope, the rest undergoes radioactive decay with half-life ranging from 5x10-21

Co-60 gamma spectrum

In this post I would like to present gamma spectrum of cobalt-60 radioisotope. This isotope has many industrial and medical uses, for instance in gamma defectoscopy, thickness measurement, tools and food sterilization or in radiotherapy. One gram of cobalt-60 has huge activity - about 44 terabecquerels (TBq). By the way, if one would hang around five grams of 60Co, he or she would obtain lethal dose of radiation under 10 minutes. There were some debates on construction of "dirty" atomic bomb

Measurement of Trinitite sample from New Mexico

Trinitite is a mineral of artificial origin resulting from the first atomic bomb blast at Alamogordo site in New Mexico (USA) on July 16, 1945. At high temeprature which occured in the epicenter of detonation, sand and rocks melted and mixed with products of nuclear fission. After solidification, glassy material known as Trinitite emerged. Even after more than 70 years since Trinity bomb explosion, material is mildly radioactive from products of plutonium
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