Radiolytic ozone yield G(O3) from 210Po alpha-particle radiation in air

Hecht, Adam; Galo, Rodrigo; Fellows, S.; Baldez, Phoenix; Koonath, P.

doi:10.1016/j.radphyschem.2021.109387

Cited by 2 publications

(1 citation statement)

References 29 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Almost every molecule in its path is ionized by an alpha particle. [10,11]. This basic ionizing step sets in motion a cascade of additional chemical reactions that produce loose radicals and other ions species.…”

Section: Khalid-rokan478@uoanbareduiqmentioning

confidence: 99%

Radiation Damage in the Structure of the CR-39 Nuclear Detector Material as A Result of the Alpha's Energy Loss

Flaih¹

2022

JUAPS

View full text Add to dashboard Cite

In this work, the damage caused by the passage of alpha particles inside the CR-39 nuclear detector material on its chemical structure was studied. All samples at room temperature using a 241Am-Be neutron source with a flux of 105 neutrons.cm-2.s-1 were neutron-irradiated. In the CR-39 nuclear track detectors, chemical etching is a critical step in expanding latent tracks. At 70 °C, a NaOH in 6.25N etchant was found to be useful in expanding alpha traces in the CR-39 detector. The track depths of the Alpha particle as a function of etching time for the various energies were increased as etching time increases. The current study uses the nuclear track detector technique to estimate the range of alpha particles. Track etch rates are frequently determined using 2-dimensional photographs of track openings (diameter) or etching time data. The chemical structure along latent tracks and the track formation process were investigated in PADC(poly allyl diglycol carbonate). The findings showed that the measurement of bulk etch rate values by the weight method was 1.42 ± 0.02 μm/h. In addition, the results for the alpha particle range from 4.47 ± 0.05 and 5.8 ± 0.19 μm for alpha energy 1.47 MeV and 1.2 MeV, respectively .

show abstract

Section: Khalid-rokan478@uoanbareduiqmentioning

confidence: 99%

Radiation Damage in the Structure of the CR-39 Nuclear Detector Material as A Result of the Alpha's Energy Loss

Flaih¹

2022

JUAPS

View full text Add to dashboard Cite

show abstract

Characteristics and Causes of Ozone Pollution in 16 Cities of Yunnan Plateau

et al. 2022

View full text Add to dashboard Cite

In order to study the characteristics and causes of ozone (O3) pollution in 16 cities of Yunnan Plateau, the methods of COD, backward trajectory and potential source contribution function (PSCF) were used to analyze the O3 concentrations from 2015 to 2020 of all state-controlled environmental monitoring stations in 16 cities of Yunnan. The results show that the O3 concentrations in Yunnan gradually increased from 2015 to 2019, and the concentration in 2020 was the lowest due to the COVID-19 pandemic. The peak O3 concentration appears in spring. The daily change trend is a typical single peak shape, the lowest value appears around 8: 00, and the highest value is between 15:00 and 16:00. High concentrations of O3 are from the cities of Zhaotong and Kunming in northeastern Yunnan, while low concentrations of O3 mainly occur in the southwest and northwest border areas. Temperature and relative humidity are two meteorological parameters that have significant effect on O3 concentration. Temperature has the best correlation with O3 in winter, and relative humidity has a better correlation with O3 in autumn and winter than in spring and summer. Finally, source analysis of O3 showed that local ozone precursor emission sources and long-distance transmission from South and Southeast Asia constituted the major contributions of O3 in Yunnan.

show abstract

Radiolytic ozone yield G(O3) from 210Po alpha-particle radiation in air

Cited by 2 publications

References 29 publications

Radiation Damage in the Structure of the CR-39 Nuclear Detector Material as A Result of the Alpha's Energy Loss

Radiation Damage in the Structure of the CR-39 Nuclear Detector Material as A Result of the Alpha's Energy Loss

Characteristics and Causes of Ozone Pollution in 16 Cities of Yunnan Plateau

Contact Info

Product

Resources

About