Full text
| |
| Author(s): |
Osvaldo Luiz dos Santos Pereira
Total Authors: 1
|
| Document type: | Master's Dissertation |
| Press: | Campinas, SP. |
| Institution: | Universidade Estadual de Campinas (UNICAMP). Instituto de Física Gleb Wataghin |
| Defense date: | 2010-05-04 |
| Examining board members: |
Julio Cesar Hadler Neto;
Carlos Alberto Tello Sáenz;
Sandro Guedes de Oliveira
|
| Advisor: | Julio Cesar Hadler Neto |
| Abstract | |
This work was a comparative study between the responses of three monitors, the NRPB, an acrylic monitor (in thin film geometry) and the aluminum monitor (also thin film geometry) in controled and mixed environment. The experiments consisted on placing the monitors in a plastic tube, with a radio-226 source internal. Only internal CR-39 plastic detectors were analyzed in this work. It was found that the monitors in thin film geometry had activities response of approximately 15% less than the NRPB monitors. All monitors responded the same way when in controlled environment. Related to the type of material, conductive plastic or dielectric (insulator) plastic, the NRPB, in environments without ventilation, responded in the same way (AU) | |
| FAPESP's process: | 06/05530-4 - Study of infantile cancer and Radon-222 alpha activity and daugthers relationship in environment air |
| Grantee: | Osvaldo Luiz dos Santos Pereira |
| Support Opportunities: | Scholarships in Brazil - Master |