Página 518 - irpa

518 ST 6.3 – Protección radiológica del público y el ambiente
RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM FOR
PRE-OPERATIONAL BRAZILIAN MULTIPURPOUSE REACTOR (RMB) –
GAMMA IN SITU SURVEY RESULTS
Magalhães de Souza, Elder1*; M. Ferreira, Ana Cristina1 ;
Roldão, Luiz Alfredo1 ; M. Feliciano Jacomino, Vanusa2
1 Instituto de Radioproteção e Dosimetria. Brasil.
2 Centro de Desenvolvimento da Tecnologia Nuclear. Brasil.
* Responsible author, email: eldermagalhaes@gmail.com
The Brazilian Multipurpose Reactor (RMB) is a venture sponsored by the Federal government.
The Brazilian Nuclear Energy Commission is responsible for its construction and operation. Its
main applications are to produce radioisotopes and radioactive sources for health, industry,
agriculture and environment; irradiate materials and nuclear fuels, to allow its analysis of
performance and behavior under irradiation in nuclear reactors; scientific and technological
research with beams of neutrons. The city of Iperó was chosen as the site for its installation. In
this area, the Experimental Center of Aramar (CEA), a venture developed and operated by the
Navy Technological Center in Sao Paulo (CTMSP), has been operating since April 1988, as part
of its development program nuclear propulsion. The CEA is located at Ipanema Farm, 10 km
from the city of Iperó and 15 km from the city of Sorocaba, Brazil. The area subject to gamma in
situ survey should cover 5 Km radius around it (area of direct influence of the reactor) and 10
Km radius around it (area of indirect influence). Current data related to the land and water uses
are raised by researchers responsible for the description of this item through site visits and
sampling campaigns for data collection more consistent with current realities in the region. For a
gamma survey of local background, in situ measurements in large areas were performed using
sodium iodide detectors, assembled in car. Measurements were made within in a period of one
week and the results were satisfactory and consistent with the background and showed similar
values when compared with other areas with the same characteristics.