Prof. Laith Ahmed Najam
Mosul University, Iraq
Iraqi-University, Baghdad, Iraq
E-mail: email@example.com, firstname.lastname@example.org
Semiconductor Radiation Detectors
2006 Ph.D., Physics Department, College of Science, Mosul
1990 M.Sc., Physics Department, College of Science, Mosul
1987 B.Sc., Physics Department, College of Science, Mosul
Hashim, A.K., Najam, L.A., Ashour, N.I., et al. Uranium Concentration, Effective Radium Content and Radon Exhalation Rate
Estimation for different Tea Brand Samples in Iraqi Market, Plant Archives Vol. 19 No. 1, 2019 pp. 407-412.
Abojassim, A.A., Mohammed, H.AU., Najam, L.A. et al. Uranium isotopes concentrations in surface water samples for Al-Manathera and Al-Heerra regions of An-Najaf, Iraq, Environ Earth Sci (2019) 78: 132. https://doi.org/10.1007/s12665-019-8134-2.
Hashim AK, Najam LA, Mohammed EJ, Hameed AS. Estimation of Radon Exhalation Rate, Radium Activity and Uranium Concentration in Biscuit Samples in Iraq. Iran J Med Phys 2019; 16: 152-157. 10.22038/ijmp.2018.32693.1394.
Hussain A. Al-Jobouri, Fala H. Taha, Laith Ahmed Najam and Wijdan Thamer Faaz, Determination the Effect of Gamma Radiation on (CR-39, CN-85) Detectors by Using of Penetration of (He-Ne) Laser Beam, Research Journal of Applied Sciences 14 (1): 45-48, 2019.
El-Taher A, Najam LA, Hussian I, Omer MAA. Evaluation of Natural Radionuclide content in Nile River Sediments and Excess Lifetime Cancer Risk Associated with Gamma Radiation. Iran J Med Phys 2019; 16: 27-33. 10.22038/ijmp.2018.30622.1351.
Hussain Ali Al-Jobouri, Wijdan Thamer Faaz, Laith A. Najam, Effect of Ultraviolet Radiation on CN-85 and CR-39 Detectors by UV-Visible Spectroscopy and (He-Ne) Laser Penetration Techniques, Asian Journal of Chemistry, Vol. 30, No. 9 (2018), 2075-2078, DOI: 10.14233/ajchem.2018.21435.
Laith A. Najam, Sameera A. Ebrahiem, Shaemaa A. Abbas Hind A.
Mahdi, Assessment of Radon Gas Concentrations Levels and Radiation Hazards in
the Dwellings of Baghdad Province, Iraq, Rasayan J. Chem., 2018, 11 (1), 37-40,
Atef El-Taher, Laith Ahmed Najam, Afrah Hassoon Oraibi,
Matthew Omoniyi Isinkaye, Effect of Cement Factory Exhaust on Radiological
Contents of Surrounding Soil Samples in Assuit Province, Egypt, Journal of
Physical Science, 2017, 28 (3), 137–150, DOI: 10.21315/jps2017.28.3.9.
Liath Ahmed Najam, Taghreed Khalid Hameed, Ahmed Obeed
Farhan, Assessment of Radon Gad Concentrations Levels and Hazards Indices in
Houses of Wassit Province-Iraq, Rasayan J. Chem., 2017, 10 (4), 1311-1315, DOI:
Ahmed Najam, Hazim Louis Mansour, Nada Fadhil Tawfiq, Mahmood Salim Karim,
Measurement of Radon Gas Concentrations in Tap Water Samples for Thi-Qar
Governorate Using Nuclear Track Detector (CR-39), Detection, 2016, 4, 1-8,
Ahmed Najam, Hazim Louis Mansour, Nada Fathil Tawfiq and Mahmood Salim Karim,
Measurement of Radioactivity in Soil Samples for Selected Regions in Thi-Qar
Governorate-Iraq, Journal of Radiation and Nuclear Applications, 2016, 1,
A. Majeed, Ghasan Adnan Naeem, Laith Ahmed Najam, Attenuation of X-ray
Fluorescence by Cadmium Compounds (CdSO4, CdCl2, CdO), International Journal of
Advanced Research in Physical Science (IJARPS), Volume 3, Issue 8, 2016, PP
Ahmed Najam, Mahmood Salim Karim, Taghreed Khalid Hameed, Measurement of Radon
Gas Concentration in Tap Water Samples in Wassit Governorate by Using Nuclear
Track Detector (CR-39), International Journal of Physics, 2016, 4 (5), 119-122,
Jabir Hadi, Ali Abid Abojassim, Laith Najam, Radial Atomic Properties of
Excited States for Beryllium Atom (1s2 2s ns) (1s), American Journal of Modern
Energy, 2016, 2(1), 1-4, 10.11648/j.ajme.20160201.11.
A. Al-Jobouri, Laith Ahmed Najam, Mustafa Y. Rajab, Image Analysis of Cr-39 and
Cn-85 Detector Irradiated by Thermal Neutron, International Journal of Recent
Research and Review, Vol. IX, Issue 1, March 2016.
Ahmed Najam, Abdalsattar Kareem Hashim, Hussein Abdulkareem Ahmed, Israa M.
Hassan, Study the Attenuation Coefficient of Granite to Use It as Shields
against Gamma Ray, Detection, 2016, 4, 33-39, 10.4236/detection.2016.42005.
A. Battawy, Nada F. Tawfiq, Laith Ahmed Najam, Mohamad Suhaimi Jaafar, Iskandar
Shahrim Mustafa, Indoor Radon Concentration Measurement in Different Iraqi
Radiation Locations, International Journal of Recent Research and Review, Vol.
IX, Issue 1, March 2016.
Naji Abood, Laith Ahmed Najim, An IBM-2 Calculation of E2/M1 Multipole Mixing
Ratios of Transitions in 90-96Sr, International Journal of Physics, 2016, Vol.
4, No. 1, 5-10. DOI: 10.12691/ijp-4-1-2.
KAREEM HASHIM, LAITH AHMED NAJAM, RAMLA D. AL-ALAWY, Effective Radium Content
and Radon Flux Determination in Cereals and Legumes Iraqian Products, Estratto
da: Atti della Fondazione Giorgio Ronchi, Anno LXX, n. 6 - 11-12, 2015, http
Kareem Hashim, Laith Ahmed Najam, Lordford Tettey-Larbi, A Study of Radon
Concentration in Different Brands Tobacco Cigarette in Iraqi Market,
Influencing Factors and Lung Cancer Risk, International Journal of Science and
Technology, Vol.5, Issue 10, 2015.
K. Hashim1, Laith A. Najam2, Alpha Radioactivity in Various Brands of Rice in
Iraqi Market, International Journal of Environmental Monitoring and Protection,
2015; 2(5): 70-75, Published online September 22, 2015
A. Al-Jobouri, Mustafa Y. Rajab, Laith A. Najam, Analysis of Nuclear Track
Parameters of CN-85 Detector Irradiated to Thermal Neutrons by Using MATLAB
Program, Detection, Vol.3 No.4, October 2015, PP. 29-36, DOI:
Kareem Hashim, Laith Ahmed Najam, Radium and Uranium Concentrations
Measurements in Vegetables Samples of Iraq, Detection, Vol.3 No.4, October
2015, PP. 21-28, DOI: 10.4236/detection.2015.34004.
A. Najam, Shaher A. Younis, Assessment of Natural Radioactivity Level in Soil
Samples for Selected Regions in Nineveh Province (IRAQ), International Journal
of Novel Research in Physics Chemistry & Mathematics, Vol. 2, Issue 2, pp:
(1-9), Month: May - August 2015, Available at: www.noveltyjournals.com.
N. Abood, Mohamed Bechir Ben Hamida, Laith A. Najim, Structure Evolution in
Odd-Even Eu- 155 Nucleus within IBFM-2, American Journal of Modern Energy,
2015; 1(1): 17-24, Published online June 18, 2015.
(http://www.sciencepublishinggroup.com/j/fhc) doi: 10.11648/j.ajme.20150101.12.
K Hashim, Laith A. Najam, Measurement of Uranium Concentrations, Radium Content
and Radon Exhalation Rate in Iraqian Building Materials Samples, International
Journal of Physics, 2015, Vol. 3, No. 4, 159-164. Available online at
http://pubs.sciepub.com/ijp/3/4/4, Science and Education Publishing, DOI:
A. Najam, Nada F. Tafiq, Fouzey H. Kitah, Estimation of Natural Radioactivity
of Some Medicinal or Herbal Plants Used in Iraq, Detection, Vol.3 No.1,
January, 2015, 1-7.
A.Najam, Nada F. Tawfiq, Shaher A.Younis, A Comparative Study of the Results of
Natural Radioactivity and the Associated Radiation Hazards of Na(Tl) and HPGe
Detectors, International Journal of Recent Research and Review, Vol. VIII,
Issue2, June 2015.
A. Majeed and L. A. Najim, Contribution of high energy configurations to
longitudinal and transverse form factors in p- and sd-shell nuclei, Indian J
Phys (June 2015) 89(6):611–618, DOI: 10.1007/s12648-014-0622-3.
Ahmed Najam, Nada Fathil Tawfiq, Enas Mohmad Younis, Radon emanation from drinking
water samples of Nineveh province (IRAQ), American Journal of Modern Physics
10.11648/j.ajmp.20140306.20, 2014; 3(6): 257-260.
A. Najam, Shaher A. Younis, Fouzey H. Kithah, Natural Radioactivity in Soil
Samples in Nineveh Province and the Associated Radiation Hazards, International
Journal of Physics, 2015, Vol. 3, No. 3, 126-132. http://pubs.sciepub.com/ijp/3/3/6, DOI: 10.12691/ijp-3-3-6.
A. Najam, Nada F. Tawfiq and Shaher A. Younis, Measurement of natural
radioactivity in brick samples used in the construction in Iraq, Scholars
Research Library, Archives of Physics Research, 2015, 6 (1): 13-19.
A. Najam, Nada F. Tawfiq and Fouzey H. Kitha, Measuring radioactivity level in
various types of rice using NaI (Tl) detector, American Journal of Engineering
Research (AJER), 2015, Volume-4, Issue-3, pp. 126-132.
K. Abbas, Laith A. Najam, Abd U. A. Sulaiman, The Effect of Gamma Irradiation
on the Structural Properties of Porous Silicon, International Journal of
Physics, 2015, Vol. 3, No. 1, 1-7.
A. Najam, Ismail K. Abbas and Abd U. A. Sulaiman, The influence of gamma
irradiation on the chemical and transport properties of porous silicon,
Advances in Applied Science Research, 2014, 5(6): 218-223.
A. Najam, Nada F. Tawfiq and Fouzey Hasan Kitah,Measurement of Natural
Radioactivity in Building Materials used in Iraq. Australian Journal of Basic
and Applied Sciences, 7(1): 56-66, 2013. ISSN: 1991-8178.
L.A., Salim Karim, M. and Khalid Hameed, T.,Evaluation of natural radioactivity
of soil samples from different regions of Wassit governorate,Pollution, 3(1):
47-53, Winter 2017.
Ahmed Najam, Sameera Ahmed Ebrahiem, and Shaemaa Akram Abbas,Evaluation of
natural radioactivity in Selected Soil Samples from the Archaeological of Ur
City by using HPGedetector,WSN 62 (2017), 79-92.
Ahmed Najam, Sameera Ahmed Ebrahiem, Shaemaa Akram Abbas,MEASUREMENT OF
RADIOACTIVITY IN SOME GRANITE SAMPLES BY USING (HPGE) DETECTOR,International
Journal of Latest Trends in Engineering and Technology,Vol.(8)Issue(2),
A. Najam , Fouad A. Majeed , Malik H. Kheder , Shaher A.
Younis, Estimation the Radiological Hazard Effects for Soil Samples of
Nineveh Province,International Journal of Physics, 2017,Vol. 5, No. 2, 53-56.
Abojassim, L.A. Najam, D. Naji , T.A. Hussain, The effective radium content and
radon exhalation rate in hair dyes samples, International Journal of
Radiation Research, April 2017.
Last Updated: June 2019.