Superheated emulsions as high-energy neutron dosemeters
| Autor: | Masashi Abe, Fumiyuki Fujita, Mala Das, Junichi Kaneko, A. Homma, Takeo Nishitani, Teruko Sawamura, Shuichi Tsuda |
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| Rok vydání: | 2004 |
| Předmět: |
Hot Temperature
Bubble Transducers Radiation Dosage Sensitivity and Specificity Particle detector Fast Neutrons Nuclear physics Radiation Protection Occupational Exposure Scattering Radiation Neutron detection Computer Simulation Linear Energy Transfer Radiology Nuclear Medicine and imaging Neutron Radiometry Nuclear Experiment Radioisotopes Physics Radiation Radiological and Ultrasound Technology Detector Public Health Environmental and Occupational Health Gamma ray Reproducibility of Results Environmental Exposure Equipment Design General Medicine Environmental exposure Neutron temperature Equipment Failure Analysis Models Chemical Body Burden Emulsions Algorithms Relative Biological Effectiveness |
| Zdroj: | Radiation Protection Dosimetry. 110:325-331 |
| ISSN: | 1742-3406 0144-8420 |
| DOI: | 10.1093/rpd/nch115 |
| Popis: | Superheated emulsions being inexpensive, easy to fabricate, and having tissue equivalent composition make them as one of the popular neutron dosemeters. One more advantage is that they can be made insensitive to gamma rays by the choice of the sensitive liquid. It is observed that the response of commercially available bubble detector to neutron decreases above 20 MeV while its response is roughly flat in the 0.1-15 MeV region. This restricts its application as a dosemeter to high-energy neutrons. The response of bubble detector from Bubble Technology Industries, has been observed by using Pb-breeder for high-energy neutrons from different facilities in Japan. It is observed that 2-3 cm Pb-breeder is effective in increasing the response of the detector to the nominal value. Theoretical calculation using MCNPX code indicates an increase in neutrons in the energy range of 0.1-10 MeV with Pb-breeder. The present work indicates the possibility of using the bubble detector as a dosemeter to high-energy neutron using a Pb-breeder of proper thickness. |
| Databáze: | OpenAIRE |
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