Rilwan Usman

Dr. Rilwan Usman

Physics, Nigerian Army University, Biu, Borno, Nigeria
orcid
Researcher

Research Focus & Metrics

Academic Career Length

7Years (2020-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

View All Publications
10 May 2024 in Nuclear Engineering and Technology
Verified
Journal Article
Open access
HAHeba Jamal Alasali
Heba Jamal Alasali
Rilwan UsmanRilwan Usman
Rilwan Usman
Karem MahmoudKarem Mahmoud
Karem Mahmoud
THTaha A. Hanafy
Taha A. Hanafy
Mohammad Ibrahim AbualsayedMohammad Ibrahim Abualsayed
Mohammad Ibrahim Abualsayed

24 February 2024 in Nuclear Engineering and Technology
Verified
Journal Article
Open access
AAAljawhara H. Almuqrin
Aljawhara H. Almuqrin
Karem MahmoudKarem Mahmoud
Karem Mahmoud
Rilwan UsmanRilwan Usman
Rilwan Usman
Mohammad Ibrahim AbualsayedMohammad Ibrahim Abualsayed
Mohammad Ibrahim Abualsayed

2 February 2024 in Nuclear Engineering and Technology
Verified
Journal Article
Open access
Mohammad Ibrahim AbualsayedMohammad Ibrahim Abualsayed
Mohammad Ibrahim Abualsayed
Rilwan UsmanRilwan Usman
Rilwan Usman
Karem MahmoudKarem Mahmoud
Karem Mahmoud
MEMohamed Elsafi
Mohamed Elsafi

1 March 2024 in Nuclear Engineering and Technology
Verified
Journal Article
Open access
Rilwan UsmanRilwan Usman
Rilwan Usman
GAG.M. Aliyu
G.M. Aliyu
SOS.F. Olukotun
S.F. Olukotun
MIM.M. Idris
M.M. Idris
AMA.A. Mundi
A.A. Mundi
Mohammad Ibrahim AbualsayedMohammad Ibrahim Abualsayed
Mohammad Ibrahim Abualsayed

26 December 2024 in Physica Scripta
Verified
Journal Article
Closed access
BNBerivan F Namq
Berivan F Namq
ZHZakariya A Hussein
Zakariya A Hussein
SOSardar Qader Othman
Sardar Qader Othman
LNLaith Najam
Laith Najam
TWTaha Yaseen Wais
Taha Yaseen Wais
Rilwan UsmanRilwan Usman
Rilwan Usman
This study aimed to evaluate the radiological impacts in Khanaqin, located in the Diyala Governorate, Iraq. The specific activities of natural radionuclides of 238U, 232Th, and 40K in soil samples were investigated by collecting thirty composite soil samples from different locations in the area. Measurements were performed using a NaI(Tl) gamma-ray spectrometry system to acquire the data and analyses were conducted using the UCS-20 program. From the results, the average specific activities of 238U, 232Th, and 40K were 25.15 ± 3.65 Bq kg−1, 12.27 ± 2.28 Bq kg−1, and 300.09 ± 14.50 Bq kg−1, respectively. These results were lower than the global average recommended by UNSCEAR. The radiological risk criteria were estimated based on the specific activities of radionuclides to assess any radiological risks that may be associated with the soil of the study area under investigation. The radiological risk criteria included radium equivalent activity (Raeq), absorbed dose rate (DR), annual effective dose (AEDE), annual gonadal equivalent dose (AGDE), excess lifetime cancer risk (ELCR), external hazard index (Hex), internal hazard index (Hin), representative gamma index (I γ ) and effective dose rate to different body organs (Dorgan). They were compared with the international safe limits. Overall, all the radiological risk criteria had values lower than the worldwide average recommended by UNSCEAR. This work employed statistical techniques to understand and explain the statistical characteristics of measured radionuclide-specific activities and the associated radiological risk criteria , including skewness, kurtosis, correlation coefficients, and K-means cluster analysis.

26 February 2024 in Nuclear Engineering and Technology
Verified
Journal Article
Open access
AAAljawhara H. Almuqrin
Aljawhara H. Almuqrin
Mohammad Ibrahim AbualsayedMohammad Ibrahim Abualsayed
Mohammad Ibrahim Abualsayed
AKAshok Kumar
Ashok Kumar
Rilwan UsmanRilwan Usman
Rilwan Usman