In this paper a detection method of a emitters from ~(222)Rn decay chain, present in cryogenic liquids, using bare Si-PIN diodes immersed in the liquids is presented. Properties of ionized ~(222)Rn daughters deduced from conducted measurements are outlined. Life-time of positive ions was ...
Production and exhalation of 222Rn depend primarily on the host rock, speleothems and sediments of the cave, and also on the soil above it. 222Rn derives from radium decay and its emanation rate and transport through the porous networks are dependent on the different environmental and geological...
Alpha-decay branching ratios to high-lying excited-states of the 242Cm→238pu→ 234U →230Th→226Rn decay chain We present a systematic calculation on the 0c-decay branching ratios to excited-states of an even-even α-decay chain 242Cm→238pu→234U →230Th→226Rn by the improved barrier...
It is extremely radioactive; its most stable isotope, francium-223 (originally called actinium K after the natural decay chain it appears in), has a half-life of only 22 minutes. It is the second-most electropositive element, behind only caesium, and is the second rarest naturally occurring...
The structures of the nuclei on the alpha-decay chain of ~(194)Rn are investigated in the deformed relativisticmean-field theory with the effective interaction TMA.We put an emphasis on the ground state properties of ~(194)Rn.The calculated alpha-decay energies and lifetimes are both very clos...
Cryogenic liquidsScreeningLow-background measurementsIn this paper a detection method of 伪 emitters from ~(222)Rn decay chain, present in cryogenic liquids, using bare Si- PIN diodes immersed in the liquids is presented. Properties of ionized ~(222)Rn daughters deduced from conducted measurements ...
Long-lived alpha and beta emitters in the $^{222}$Rn decay chain on detector surfaces may be the limiting background in many experiments attempting to detect dark matter or neutrinoless double-beta decay. Removal of tens of microns of material via electropolishing has been shown to be ...
Radon (222Rn) and Thoron (220Rn) are radioactive noble gases which are produced in the decay chain of primordial radionuclides 238U and 232Th. These gases have been established as an important source of inhalation radiation dose to human which increases risk of lung cancer. Similarly the ...
Data evaluation relies (besides the 186.2keV 226 Ra gamma peak) on the combined analysis of major gamma peaks that are produced by the short-lived radon ( 222 Rn) daughters 214 Pb and 214 Bi. Precondition for this detection approach is equilibrium decay of all members of the decay chain ...
In this paper a detection method of 伪 emitters from 222Rn decay chain, present in cryogenic liquids, using bare Si-PIN diodes immersed in the liquids is presented. Properties of ionized 222Rn daughters deduced from conducted measurements are outlined. Life-time of positive ions was found to ...