Conceptual design of experimental equipment for large-diameter NTD-Si

An irradiation-experimental equipment for 12 in neutron transmutation doping silicon (NTD-Si) was designed conceptually by using MCNP5 in order to improve the neutron flux distribution of the radial direction. As a result of the calculations, the neutron absorption reaction ratio of the circumferenc...

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Bibliographic Details
Published in:Applied radiation and isotopes 2009-07, Vol.67 (7), p.1225-1229
Main Authors: Yagi, M., Watanabe, M., Ohyama, K., Yamamoto, K., Komeda, M., Kashima, Y., Yamashita, K.
Format: Article
Language:English
Subjects:
JRR-4
MCNP
Neutron transmutation doping silicon
Thermal neutron filter
Uniform irradiation condition
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Summary:An irradiation-experimental equipment for 12 in neutron transmutation doping silicon (NTD-Si) was designed conceptually by using MCNP5 in order to improve the neutron flux distribution of the radial direction. As a result of the calculations, the neutron absorption reaction ratio of the circumference to the center could be limited within 1.09 using a thermal neutron filter that covers the surface of the silicon ingot. The uniformity of the 30Si neutron absorption was less than 5.3%.
ISSN:0969-8043
1872-9800
DOI:10.1016/j.apradiso.2009.02.018