Journal of Conservation Science (보존과학회지)

The Korean Society Of Conservation Science For Cultural Heritage (한국문화재보존과학회)
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Study of Optimal Gamma Irradiation using Monte Carlo Simulations for the Control of Fungi on Wooden Cultural Property

목재 유물 돈궤의 미생물 제어를 위한 몬테카를로 방법을 이용한 감마선 조사 연구

  • Yoon, Min-Chul (Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute) ;
  • Chung, Yong-Jae (Department of Conservation Science, Korean National University of Cultural Heritage) ;
  • Kang, Dai-Ill (Department of Conservation Science, Korean National University of Cultural Heritage) ;
  • Kim, Ik-Joo (Gyeong-Dam Conservation Laboratory) ;
  • Kim, Gwang-Hoon (Department of Biology, Kongju National University) ;
  • Lee, Yun-Jong (Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute) ;
  • Lee, Ju-Woon (Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute) ;
  • Choi, Jong-Il (Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute)
  • Received : 2011.01.04
  • Accepted : 2011.05.30
  • Published : 2011.06.20
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Abstract

In this study, there has been investigated the simulation of irradiation dose using Monte Carlo methodology and experimental substantiation for the biological control of wooden cultural property. In the evaluation of fungal contamination on wooden cultural property, Dongyae, from exhibition storage, Aureobasidium pullulans was mainly identified. But these microorganisms were completely inactivated by 20 kGy gamma irradiation. For dosimetry simulation of Dongyae, Monte Carlo methodology with MCNP was used. The real dosimetry was measured using alanin dosimeters (at 7 different points on the front plan and 7 points on the back plan). Simulated and experimental results are compared and good agreement is observed. These result shows that irradiation can offer biologic control of wooden cultural property by optimal irradiation dose through high penetration power and Monte Carlo simulation.

본 논문은 목조문화재의 생물학적 제어를 위하여 몬테카를로(Monte Carlo) 방법을 이용한 감마선 조사선량의 예측과 실증에 관한 연구이다. 박물관 수장고에 보관되어 있는 목재 유물 돈궤의 미생물 오염을 조사한 결과 채집된 곰팡이들은 대부분 Aureobasidium pullulans로 동정되었으며 돈궤를 20 kGy의 감마선 조사한 결과 모두 불활성화 되었다. 몬테카를로 방법을 이용하여 돈궤의 방사선 조사선량 분포를 예측하였으며, alanin dosimeter를 이용하여 돈궤의 앞, 뒷면에 각각 7 지점에 대한 방사선 조사선량 분포를 실측하였다. 그 결과 몬테카를로 모사값과 실험값을 비교해 보았을 때 좋은 일치도를 보였다. 이러한 결과는 감마선의 높은 투과력과 모사 예측을 통하여 최적 방사선 조사선량으로 목조 유물의 미생물학적 제어를 제공할 수 있다는 사실을 보여준다.

Keywords

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