The data also reveal that regular measurements of radiation exposure and radiation protective measures need not be undertaken in theatres where surgeons are working with radioactive isotopes
where dN/dt is the rate of decay of a radioactive isotope
, N is the present amount of a radioactive isotope
(called the parent) in a sample, [N.sub.0] is the amount of parent isotope in the sample at the time of its formation, t is the age of the sample, and [lambda] is the decay constant of the parent isotope.
The calling card in the Litvinenko assassination was that radioactive isotope
. It says, "Make no mistake, we did this."
The radioactive isotope
source has the advantage of longevity but due to the "always on" nature of radioactive isotopes
and additional regulatory issues, this device is more suited to a fixed location.
a = decay constant, which is unique for each radioactive isotope
A 74-year-old prostate cancer patient recently received the first brachytherapy seed implant ever to use the radioactive isotope
The sites with guano registered ten times the concentration of the radioactive isotope
cesium-137, which does not occur naturally but has been released into the atmosphere through nuclear testing and reactor meltdowns.
"Gamma ray technology uses the radiation given off by a radioactive substance, typically Cobalt 60, which is a radioactive isotope
of the element cobalt," Masefield explains.
a monocolonal antibody or a peptide) is connected to a powerful radioactive isotope
. As it radioactively decays, the isotope emits particles that can either directly or indirectly kill any cancer cells it encounters.
Researchers at Canada's national particle accelerator, TRIUMF, recently announced that they have successfully simulated the reaction of the unstable, radioactive isotope
sodium 21 during nova and other cataclysmic stellar events, bringing them one step closer to understanding how matter is produced in the universe.
All XRF instruments have an excitation source such as an x-ray tube or radioactive isotope
. The key difference lies in how the x-rays get into the detector.
17 Kyodo A former Osaka University researcher Tuesday was sentenced to two years' imprisonment, suspended for three years, for spreading a radioactive isotope
on the floor of a laboratory in June last year.