The concentration of the naturally occurring radionuclides 226Ra, 232Th and 40K have been measured in Clay (C), gypsum (G), limestone (L), sand (S), brick (B), soil (So), cement (Ce), which are used as building materials in Assiut, Egypt, using gamma spectrometry employing a 3×3 inch scintillation NaI (Tl) detector. The radium equivalent activity (Raeq), indoor gamma absorbed dose rate (D), annual effective dose (An), (AUI), alpha index (Iα), gamma index (Iγ), external radiation hazard index (Hex), internal radiation hazard index (Hin), representative level index (RLI), excess lifetime cancer risk (ELCR) and annual gonadal dose equivalent (AGDE) associated with the natural radionuclides are calculated to assess the radiation hazard of the natural radioactivity in the building materials. Basic statistics (skewness and Kurtosis) and frequency distributions for all radionuclides were used to describe the statistical characteristics of the radionuclide activities.
목차
Abstract 1. Introduction 2. Materials and Methods 2.1. Sampling and Sample Preparation 2.2. Gamma-Ray Spectroscopic Technique 3. Results and Discussion 3.1. Radionuclide Activity Concentrations 3.2. Radium Equivalent Activities (Raeq) 3.3. Representative Level Index (RLI) 3.4. Absorbed Gamma Dose Rate (D) 3.5. Annual Effective Dose (E) 3.6. Alpha Index (Iα) and Gamma Index (Iγ) 3.7. External and Internal Hazard Indices 3.8. Excess lifetime cancer risk (ELCR) 3.9. Annual Gonadal Dose Equivalent (AGDE) 4. Statistical Analysis 4.1 Principal Component Analysis (PCA) 4.2 Cluster Analysis (CA) 4.3 Pearson’s Correlation Coefficient Analysis 4. Conclusion References
키워드
Natural radionuclidsBuilding materialsAnnual effective doseExcess lifetime cancer riskskewness and Kurtosis statistics
저자
Shams Issa [ Physics Department, Faculty of Science, Al-Azhar University, Egypt, 7Physics Department, Faculty of Science, University of Tabuk, Saudi Arabia ]
A. M. A. Mostafa [ Physics Department, Faculty of Science, Al-Azhar University, Egypt. ]
보안공학연구지원센터(IJBSBT) [Science & Engineering Research Support Center, Republic of Korea(IJBSBT)]
설립연도
2006
분야
공학>컴퓨터학
소개
1. 보안공학에 대한 각종 조사 및 연구
2. 보안공학에 대한 응용기술 연구 및 발표
3. 보안공학에 관한 각종 학술 발표회 및 전시회 개최
4. 보안공학 기술의 상호 협조 및 정보교환
5. 보안공학에 관한 표준화 사업 및 규격의 제정
6. 보안공학에 관한 산학연 협동의 증진
7. 국제적 학술 교류 및 기술 협력
8. 보안공학에 관한 논문지 발간
9. 기타 본 회 목적 달성에 필요한 사업
간행물
간행물명
International Journal of Bio-Science and Bio-Technology
간기
격월간
pISSN
2233-7849
수록기간
2009~2016
등재여부
SCOPUS
십진분류
KDC 505DDC 605
이 권호 내 다른 논문 / International Journal of Bio-Science and Bio-Technology Vol.7 No.6