Journal of Radiation Protection and Research

The Korean Association for Radiation Protection (대한방사선방어학회)
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Effect of Prompt Fission Neutron Spectral Formulae on Nuclear Criticality

핵분열(核分裂) 중성자(中性子)스펙트럼이 핵임계도(核臨界度)에 미치는 효과(效果)

  • Ro, Seung-Gy (Daeduk Engineering Center, Korea Advanced Energy Research Institute) ;
  • Min, Duck-Kee (Daeduk Engineering Center, Korea Advanced Energy Research Institute) ;
  • Youk, Geun-Uck (Daeduk Engineering Center, Korea Advanced Energy Research Institute) ;
  • Oh, Hi-Peel (Department of Physics, College of Science, Chungnam National University)
  • 노성기 (한국에너지연구소 대덕공학센터) ;
  • 민덕기 (한국에너지연구소 대덕공학센터) ;
  • 육근억 (한국에너지연구소 대덕공학센터) ;
  • 오희필 (충남대학교 이과대학 물리학과)
  • Published : 1982.08.31
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Abstract

A calculation of the effective multiplication factor has been made for GODIVA and JEZEBEL critical assemblies by using a computer code, ANISN, with having the Watt's, Cranberg's and Maxwellian formulae for the prompt fission neutron spectrum as a fission source. Then the calculated values have been compared with experimental data obtained by others. The Maxwellian formula seems to be the best one for representing the prompt fission neutron spectrum since the effective multiplication factor based on it shows a better agreement with the experimental value compared to the rest formulae.

핵분열(核分裂) 즉발중성자(卽發中性子)스펙트럼의 표현식(表現式)인 왓트식(式), 크란버그식(式) 및 멕스웰식(式)을 핵분열(核分裂)의 선원항(線源項)으로 취(取)하여 고디바계(系)와 제제벨계(系)의 유효증배계수(有效增倍係數)를 ANISN 전산(電算)코드로 산출(算出)하고 타(他) 연구자(硏究者)의 실험치(實驗値)와 비교(比較)해 보았다 .그 결과(結果) 실험치(實驗値)에 가장 가까운 값을 주는 것은 멕스웰식(式)으로 보였다. 이것은 곧 멕스웰식(式)이 핵분열(核分裂) 즉발중성자(卽發中性子)스펙트럼의 적절(適切)한 표현식(表現式)임을 의미(意味)한다.

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