Because a person's exposure to
alpha particles typically is low, researchers have had to estimate public health threats from radon by extrapolating from the effects of higher doses of alpha radiation.
The aim, essentially, is to start from oxygen gas and split its nucleus into its starting ingredients: an
alpha particle and a carbon-12 nucleus.
Earlier, on the basis of this model the binding energy of the deuteron, triton and
alpha particle have been determined [2], as well as many other parameters for both micro- and macrocosm [3-6].
Mann, Backscattering of
alpha particles from thick metal backings as a function of atomic weights, Int.
As it can be seen in the radon decay chain, number of
alpha particles emitted in this chain is high and given that
alpha particle considered as one of the most dangerous particles resulted from decays so this gas can be considered as one of the dangerous radioactive gases.
Caption: Euriosity's two-metre-long robotic arm contains a variety of tools including cameras, a drill, a soil scoop and an
alpha particle X-ray spectrophotometer (APXS), visible here as a can-shaped device located at the 10 o'clock position.
Low-level exposure to [.sup.210]Po may have subtle, long-term biological effects because of its tropism towards reproductive and embryonic and fetal tissues where exposure to a single
alpha particle may kill or damage critical cells.
As a result of the recent UCT/AIT merger, increased level of vertical integration will enable UCT to design, engineer and manufacture the UltraLo-1800
alpha particle counter more efficiently and with a shorter cycle time.
That is why the efficiency of
alpha particle interaction with the wave increases, and the growth rates become greater than that of the case [DELTA] = 0.1.
No number of small deflections by the gold atoms' internal electric charges could have diverted an
alpha particle's path so dramatically, he determined, applying some statistical probability calculations (he had once audited statistics classes to prepare himself to deal with such issues).
Radon is a naturally occurring radioactive
alpha particle emitting colorless, odorless and tasteless gas produced by radioactive decay of uranium and thorium.
Three of the 11 papers in this collection present research from the City University of Hong Kong on using solid state nuclear track detectors to measure radon progeny concentrations, as substrates for
alpha particle radiobiologic experiments, and to study the optical characteristics of etched tracks.