Volume 51, Number 4, October-December 2016
|Page(s)||245 - 248|
|Published online||30 September 2016|
Terrestrial gamma radiation dose rate in Cienfuegos, Cuba
1 Centro de Estudios Ambientales de
Cienfuegos. Ctra. a Castillo de
Jagua, Km 1.5. Ciudad Nuclear, CP59350
2 Departamento de Química, Universidad de Navarra. Irunlarrea No. 1, Pamplona, 31009, España
3 Unidad de Supervisión Ambiental y Nuclear. CITMA, Cienfuegos, Cuba
Accepted: 29 July 2016
This study assesses the level of background radiation for Cienfuegos Province, Cuba. Measurements of outdoor gamma radiation (of terrestrial and cosmic origin) in air were performed at 198 locations using a GPS navigator and a dose meter (SRP-68-01, 30 × 25 mm NaI detector). The average absorbed dose was found to be 73.9 nGy h-1 (17.2–293.9 nGy h-1), corresponding to an annual effective dose of 74.7 μSv (21–324 μSv). When compared with the data available for other places, the absorbed gamma doses obtained in this study indicate a background radiation level that falls within natural limits for the Damuji, Salado and Caonao watersheds; however, the Arimao and Gavilanes watersheds present levels of the absorbed dose and annual effective dose comparable with high background radiation areas. An isodose map of the terrestrial gamma dose rate in Cienfuegos was drawn using the GIS application “Arc View”. This study provides important baseline data of radiation exposure in the area.
Key words: Gamma radiation dose / annual effective dose / watershed / radiological map / Cuba
© EDP Sciences, 2016
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