A Proposal on Evaluation Method of Neutron Absorption Performance to Substitute Conventional Neutron Attenuation Test
- Title
- A Proposal on Evaluation Method of Neutron Absorption Performance to Substitute Conventional Neutron Attenuation Test
- Author
- 신창호
- Keywords
- Neutron absorber; MCNP; Criticality control; Vitrified form; Neutron absorption ability; Neutron attenuation test
- Issue Date
- 2016-09
- Publisher
- 대한방사선방어학회
- Citation
- 방사선방어학회지, v. 41, NO. 4, Page. 384-388
- Abstract
- Background: For a verification of newly-developed neutron absorbers, one of guidelines on the qualification and acceptance of neutron absorbers is the neutron attenuation test. However, this approach can cause a problem for the qualifications that it cannot distinguish how the neutron attenuates from materials.
Materials and Methods: In this study, an estimation method of neutron absorption performances for materials is proposed to detect both direct penetration and back-scattering neutrons. For the verification of the proposed method, MCNP simulations with the experimental system designed in this study were pursued using the polyethylene, iron, normal glass and the vitrified form.
Results and Discussion: The results show that it can easily test neutron absorption ability using single absorber model. Also, from simulation results of single absorber and double absorbers model, it is verified that the proposed method can evaluate not only the direct thermal neutrons passing through materials, but also the scattered neutrons reflected to the materials. Therefore, the neutron absorption performances can be accurately estimated using the proposed method comparing with the conventional neutron attenuation test.
Conclusion: It is expected that the proposed method can contribute to increase the reliability of the performance of neutron absorbers.
- URI
- http://jrpr.org/journal/view.php?doi=10.14407/jrpr.2016.41.4.384https://repository.hanyang.ac.kr/handle/20.500.11754/80343
- ISSN
- 2508-1888; 2466-2461
- DOI
- 10.14407/jrpr.2016.41.4.384
- Appears in Collections:
- RESEARCH INSTITUTE[S](부설연구소) > INNOVATIVE TECHNOLOGY CENTER FOR RADIATION SAFETY(방사선안전신기술연구소) > Articles
- Files in This Item:
- A Proposal on Evaluation Method of Neutron Absorption Performance to Substitute Conventional Neutron Attenuation Test.pdfDownload
- Export
- RIS (EndNote)
- XLS (Excel)
- XML