Effect of human body position on gamma radiation dose rate from granite stones

2021 ◽  
Author(s):  
Motahareh Kefalati ◽  
S. Farhad Masoudi ◽  
Akbar Abbasi
Keyword(s):  
Radiation Dose ◽  
Gamma Radiation ◽  
Dose Rate ◽  
Human Body ◽  
Body Position ◽  
Radiation Dose Rate ◽  
Gamma Radiation Dose

scholarly journals Terrestrial Gamma Radiation Dose Rate of West Sarawak

2017 ◽  
Vol 156 ◽  
pp. 00006
Author(s):  
A. Izham ◽  
A.T. Ramli ◽  
W.M. Saridan Wan Hassan ◽  
H.N. Idris ◽  
N.A. Basri
Keyword(s):  
Radiation Dose ◽  
Gamma Radiation ◽  
Dose Rate ◽  
Radiation Dose Rate ◽  
Gamma Radiation Dose

The rain induced gamma-radiation dose rate enhancement at Järvselja SMEAR station

2021 ◽  
Author(s):  
Urmas Hõrrak ◽  
Xuemeng Chen ◽  
Kristo Hõrrak ◽  
Uko Rand ◽  
Kaupo Komsaare ◽  
...  
Keyword(s):  
Radiation Dose ◽  
Gamma Radiation ◽  
Dose Rate ◽  
Atmospheric Aerosol ◽  
Aerosol Particles ◽  
Aerosol Formation ◽  
Radiation Dose Rate ◽  
Air Mass ◽  
Rate Enhancement ◽  
Gamma Radiation Dose

<p>The SMEAR Estonia station (58.277663 N, 27.308266 E, 36 m a.s.l.) was established in south-east of Estonia at the Järvselja Experimental Forestry in 2012 to investigate the atmosphere-biosphere interactions and atmospheric aerosol formation and growth.</p><p>In summer 2019, the gamma-radiation monitor GammaTRACER XL2-3 (Saphymo GmbH) was set up at Järvselja station and the rain sensor DRD11A (Vaisala Oyj) in autumn 2019. These devices enable to measure the gamma-radiation dose rate and precipitation intensity, which affect the ionization rate of atmospheric air close to ground, with high accuracy and time resolution, and complement our measurement system of atmospheric ions and aerosol particles.</p><p>The gamma-radiation dose rate measurements at about 1.2 m above the ground reveled on relatively steady background about 70 nSv/h occasional events with increase up to about 110 nSv/h, which correlated well with rainfall intensity. Commonly such events last 3-4 hours, but in specific meteorological situation with continuous long-lasting rain and air mass movement from southerly directions the effect can last 2-3 days, resulting in gradual increase in gamma-radiation dose rate level during about 24 h.</p><p>Such a phenomenon is known to occur due to wet deposition of radioactive aerosol particles during rain, namely due to the radon (<sup>222</sup> Rn) short-lived daughter progeny products (Po-218, Pb-214, Bi-214) attached to atmospheric aerosol particles. The radon (<sup>222</sup> Rn) daughter progeny involvement is confirmed by simultaneous gamma-spectrometric measurements with SARA AGS711F (Envinet GmbH) at Tõravere station (58° 15' 52,9" N, 26° 27' 42,1", 72 m), located about 50.3 km west from the Järvselja SMEAR station. The gamma dose rates showed very similar temporal behavior when both stations were affected by the same air mass with precipitation zone passing over the stations.</p><p>To our best knowledge, the details of rain-induced enhancement of gamma-radiation dose rate and atmospheric processes behind the phenomenon are not well known and are worth future investigations. The events of rain induced gamma-radiation dose rate enhancement at Järvselja SMEAR and Tõravere station are analyzed and discussed in more detail in the presentation and the spatial representativity of the phenomenon is estimated based on the gamma-radiation monitoring network data of Estonian Early Warning System.</p>

Using RADFET for the real-time measurement of gamma radiation dose rate

2015 ◽  
Vol 26 (2) ◽  
pp. 025004 ◽  
Author(s):  
Marko S Andjelković ◽  
Goran S Ristić ◽  
Aleksandar B Jakšić
Keyword(s):  
Radiation Dose ◽  
Gamma Radiation ◽  
Dose Rate ◽  
Real Time ◽  
Time Measurement ◽  
Radiation Dose Rate ◽  
The Real ◽  
Real Time Measurement ◽  
Gamma Radiation Dose

Isodose mapping of terrestrial gamma radiation dose rate of Selangor state, Kuala Lumpur and Putrajaya, Malaysia

2014 ◽  
Vol 135 ◽  
pp. 67-74 ◽  
Author(s):  
M.S.M. Sanusi ◽  
A.T. Ramli ◽  
H.T. Gabdo ◽  
N.N. Garba ◽  
A. Heryanshah ◽  
...  
Keyword(s):  
Radiation Dose ◽  
Gamma Radiation ◽  
Dose Rate ◽  
Kuala Lumpur ◽  
Radiation Dose Rate ◽  
Gamma Radiation Dose

Geological influence on terrestrial gamma radiation dose rate in the Malaysian State of Johore

2001 ◽  
Vol 54 (2) ◽  
pp. 327-333 ◽  
Author(s):  
Ahmad Termizi Ramli ◽  
Abdel Wahab M.A Hussein ◽  
M.H Lee
Keyword(s):  
Radiation Dose ◽  
Gamma Radiation ◽  
Dose Rate ◽  
Radiation Dose Rate ◽  
Gamma Radiation Dose

GAMMA RADIATION DOSE RATE AND SWEET POTATO QUALITY

1989 ◽  
Vol 12 (5) ◽  
pp. 369-376 ◽  
Author(s):  
JOHN Y. LU ◽  
PAUL MILLER ◽  
PHILIP A. LORETAN
Keyword(s):  
Radiation Dose ◽  
Gamma Radiation ◽  
Dose Rate ◽  
Sweet Potato ◽  
Radiation Dose Rate ◽  
Potato Quality ◽  
Gamma Radiation Dose
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