| REVIEW ARTICLE |
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| Year : 2012 | Volume
: 35
| Issue : 3 | Page : 145-155 |
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Radiological safety aspects of an accelerator driven system
C Sunil
Accelerator Radiation Safety Section, Health Physics Division, Bhabha Atomic Research Centre, Mumbai, Maharashtra, India
Correspondence Address:
C Sunil
Accelerator Radiation Safety Section, Health Physics Division, Bhabha Atomic Research Centre, Mumbai - 400 085, Maharashtra
India
 Source of Support: None, Conflict of Interest: None  | Check |
DOI: 10.4103/0972-0464.117672
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Accelerator driven systems (ADS) have the potential to generate nuclear power by coupling a high energy high current proton accelerator to a sub-critical nuclear reactor. The system has several advantages such as inherent safety from a runaway chain reaction, independence of the reactivity from delayed neutrons, resistance to nuclear proliferation, ability to transmute long lived minor actinides and fission products and, to convert thorium to 233 U. The radiological safety aspects of a typical ADS are discussed in which lead bismuth eutectic (LBE) is the spallation target as well as the coolant. In the irradiated target, residual activity is a major concern, particularly the amount of 210 Po. The time evolution of the major isotopes present in LBE is studied along with the prevailing residual gamma dose rates. Few issues that may surface while coupling a reactor to an accelerator are also discussed. |
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