| Radionuclide concentrations in soil and lifetime cancer risk due to gamma radioactivity in Kirklareli, Turkey H Taskin, M Karavus, P Ay, A Topuzoglu, S Hidiroglu, G Karahan Journal of environmental radioactivity 100 (1), 49-53, 2009 | 929 | 2009 |
| Assessment of gamma dose rates around Istanbul (Turkey) G Karahan, A Bayulken Journal of environmental radioactivity 47 (2), 213-221, 2000 | 343 | 2000 |
| Natural and anthropogenic radionuclides in rocks and beach sands from Ezine region (Canakkale), Western Anatolia, Turkey Y Örgün, N Altınsoy, SY Şahin, Y Güngör, AH Gültekin, G Karahan, ... Applied Radiation and Isotopes 65 (6), 739-747, 2007 | 324 | 2007 |
| Determination of radioactivity levels and hazards of soil and sediment samples in Fırtına Valley (Rize, Turkey) A Kurnaz, B Küçükömeroğlu, R Keser, NT Okumusoglu, F Korkmaz, ... Applied radiation and isotopes 65 (11), 1281-1289, 2007 | 302 | 2007 |
| Assessment of environmental radioactivity for Sanliurfa region of southeastern Turkey A Bozkurt, N Yorulmaz, E Kam, G Karahan, AE Osmanlioglu Radiation Measurements 42 (8), 1387-1391, 2007 | 212 | 2007 |
| Radioactivity concentrations and dose assessment for soil samples around Adana, Turkey M Degerlier, G Karahan, G Ozger Journal of environmental radioactivity 99 (7), 1018-1025, 2008 | 194 | 2008 |
| Natural radioactivity levels in granitic plutons and groundwaters in Southeast part of Eskisehir, Turkey Y Örgün, N Altınsoy, AH Gültekin, G Karahan, N Celebi Applied Radiation and Isotopes 63 (2), 267-275, 2005 | 175 | 2005 |
| Natural radioactivity in various surface waters in Istanbul, Turkey G Karahan, N Öztürk, A Bayülken Water Research 34 (18), 4367-4370, 2000 | 138 | 2000 |
| Natural radioactivity in tap waters of Eastern Black Sea region of Turkey U Çevik, N Damla, G Karahan, N Celebi, AI Kobya Radiation protection dosimetry 118 (1), 88-92, 2006 | 114 | 2006 |
| Gross α and β activities in tap waters in Eastern Black Sea region of Turkey N Damla, U Çevik, G Karahan, AI Kobya Chemosphere 62 (6), 957-960, 2006 | 105 | 2006 |
| Natural radioactivity in various surface waters in Adana, Turkey M Degerlier, G Karahan Desalination 261 (1-2), 126-130, 2010 | 90 | 2010 |
| Determination of gross α and β activities in waters from Batman, Turkey N Damla, U Cevik, G Karahan, AI Kobya, M Kocak, U Isık Desalination 244 (1-3), 208-214, 2009 | 63 | 2009 |
| Radioactivity levels and health risks due to radionuclides in the soil of Yalova, Northwestern Turkey E Kapdan, A Varinlioglu, G Karahan International Journal of Environmental Research 5 (4), 837-846, 2011 | 58 | 2011 |
| Assessment of natural radioactivity concentrations and gamma dose rate levels in Kayseri, Turkey P Otansev, G Karahan, E Kam, I Barut, H Taskin Radiation Protection Dosimetry 148 (2), 227-236, 2012 | 50 | 2012 |
| İstanbul'un çevresel doğal radyoaktivitesinin tayini ve doğal radyosyonların yıllık etkin doz eşdeğeri G Karahan Enerji Enstitüsü, 1997 | 45 | 1997 |
| Radioactivity survey and risk assessment study for drinking water in the Artvin province, Turkey Y Kobya, H Taşkın, CM Yeşilkanat, U Çevik, G Karahan, B Çakır Water, Air, & Soil Pollution 226, 1-9, 2015 | 44 | 2015 |
| A study of environmental radioactivity measurements for Cankiri, Turkey E Kapdan, H Taskin, E Kam, AE Osmanlioğlu, G Karahan, A Bozkurt Radiation Protection Dosimetry 150 (3), 398-404, 2012 | 44 | 2012 |
| Risk assessment of baseline outdoor gamma dose rate levels study of natural radiation sources in Bursa, Turkey G Karahan Radiation protection dosimetry 142 (2-4), 324-331, 2010 | 42 | 2010 |
| Radioactivity in sediments and gross alpha–beta activities in surface water of Fırtına River, Turkey B Kücükömeroglu, A Kurnaz, R Keser, F Korkmaz, NT Okumusoglu, ... Environmental geology 55, 1483-1491, 2008 | 38 | 2008 |
| Natural and artificial radioactivity in Emendere thermal spring area in Western Anatolia S Topcuoğlu, G Karahan, N Güngör, Ç Kırbaşoğlu Journal of Radioanalytical and Nuclear Chemistry 256 (3), 395-398, 2003 | 38 | 2003 |
