http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
- 中文 을 입력하시려면 zhongwen을 입력하시고 space를누르시면됩니다.
- 北京 을 입력하시려면 beijing을 입력하시고 space를 누르시면 됩니다.
RISS 인기검색어
- 검색키워드
- 저자 : Azeem Umair (검색결과 1 건)
- 무료
- 기관 내 무료
- 유료
-
Azeem Umair,Younis Hannan,ullah Niamat,Mehboob Khurram,Ajaz Muhammad,Ali Mushtaq,Hidayat Abdullah,Muhammad Wazir 한국원자력학회 2024 Nuclear Engineering and Technology Vol.56 No.1
This study focuses on measuring the levels of naturally occurring radioactivity in the soil of Swabi, Khyber Pakhtunkhwa, Pakistan, as well as the associated health hazard. Thirty (30) soil samples were collected from various locations and analyzed for 226Ra, 232Th, and 40K radioactivity levels using a High Purity Germanium detector (HPGe) gamma-ray spectrometer with a photo-peak efficiency of approximately 52.3%. The average values obtained for these radionuclides are 35.6 ± 5.7 Bqkg 1, 47 ± 12.5 Bqkg 1, and 877 ± 153 Bqkg 1, respectively. The level of 232Th is slightly higher and 40K is 2.2 times higher than the internationally recommended limit of 30 Bqkg 1 and 400 Bqkg 1, respectively. Various parameters were calculated based on the results obtained, including Radium Equivalent (Raeq), External Hazard (Hex), Absorbed Dose Rate (D), Annual Gonadal Equivalent Dose (AGDE), Annual Effective Dose Rate, and Excess Lifetime Cancer Risk (ELCR), which are 170.3 ± 24 Bqkg 1, 0.46 ± 0.06 Bqkg 1, 81.4 ± 2.04 nGy h 1, 582 ± 78.08 μSvy 1, 99.8 ± 13.5 μSv Gy 1, and 0.349 ± 0.04, respectively. These values are below the limits recommended by the United Nations Scientific Committee on the Effects of Atomic Radiation (UNSCEAR) in 2002. This study highlights the potential radiation threats associated with natural radioactivity levels in the soil of Swabi and provides valuable information for public health and safety
연관 검색어 추천
이 검색어로 많이 본 자료
활용도 높은 자료
