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Radon - OSTI GOV

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Last Updated: 20 June 2022

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Building bulk geometry from the tensor Radon transform

"In the particular case of AdS 3 / CFT 2, we investigate how bulk geometries can be precisely recreated from boundary entropies by using the tensor Radon transform and similar numerical methods. " "We explicitly reconstruct the unique bulk metric tensor after a gauge choice is made in the case where a well-defined bulk geometry exists.

Source link: https://www.osti.gov/biblio/1852626


Excessive radon-based radiation in indoor air caused by soil building materials in traditional homes on Dong Van karst plateau, northern Vietnam

"The estimated annual effective dose rates for indoor 222Rn and their children to people with daily exposure of 13 h in various types of buildings range from 3. 1 to 4. 2 mSv a-1 in houses constructed with upgraded materials, but up to greater than 6 mSv a-1 in houses with raw building materials. " The risk of lung cancer is reduced as a result of indoor u03b1-radiation in impacted homes and ranges from 3. 9% to 14. 6%. "Total radon's risk of lung cancer is greater than 80%, with a hazard of developing lung cancer in a range of 2. 7 to 14. 6%. ".

Source link: https://www.osti.gov/biblio/1850974


Measurement of radon-induced backgrounds in the NEXT double beta decay experiment

"The determination of the internal 222Rn activity in the NEXT-White detector during the so-called Run-II period with 136Xe-depleted xenon is discussed in depth, as well as the implications for double beta decay searches in NEXT. " The deterioration of the 214Bi daughter ions plating out on the time projection chamber's cathode has also been noted by Radon-induced electrons.

Source link: https://www.osti.gov/biblio/1437298


Study of radon reduction in gases for rare event search experiments

"In the temperature range of 190-295 K, different adsorbing characteristics and intrinsic radioactive purities have been investigated, including the development of a purification system for reducing such contamination. " k a -values for radon in nitrogen, argon, and xenon have increased as the temperature of the charcoal traps rises, and they are considerably larger in nitrogen and argon than in xenon gas due to adsorption saturation effects. The experimental findings show that nitric acid etched Saratech is the most suitable option among all commonly used charcoal brands. Also, it helps reduce total radon concentration in the LZ liquid Xe detector's detector to meet the ultimate aim in the search for Dark Matter.

Source link: https://www.osti.gov/biblio/1670984

* Please keep in mind that all text is summarized by machine, we do not bear any responsibility, and you should always check original source before taking any actions

* Please keep in mind that all text is summarized by machine, we do not bear any responsibility, and you should always check original source before taking any actions