| Presentation | 2012-09-07 Complex Permittivity Measurement of D_2O by Waveguide Penetration Method in Millimeter-Wave Band Yoshii SUGENO, Alfred KIK, Yukihisa SUZUKI, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | In millimeter-wave band, there are a few studies for the measurement of complex permittivity on D_2O. In this study, the measurement of complex permittivity of D_2O is performed using the wave-guide penetration method from 33 GHz to 65 GHz. Values of both real and imaginary part of the complex permittivity for D_2O are smaller than those for H_2O in this measurement. Dielectric relaxation times of D_2O and H_2O are estimated from measurement data with the regression analysis. Debye's relaxation theory and Kaatze's empirical formula which is modified Debye's theory is used for the estimation of ε(0), ε(∞) and relaxation time T in the regression analysis. Relaxation times for D_2O and H_2O are 8.81 x 10^-12 s and 7.69 x 10^-12 s, respectively. It is found that the relaxation time for D_2O is longer than that for H_2O. The relaxation time for orientation polarization increases according to the increment of the mass for the target molecule. Therefore, estimated relaxation time for D_2O is appropriate, because the weight of D_2O is larger than that of H_2O by the mass of two neutrons. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | heavy water / waveguide-penetration method / complex permittivity measurement / millimeter-wave |
| Paper # | EMCJ2012-55 |
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| Committee | EMCJ |
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| Conference Date | 2012/8/31(1days) |
| Place (in Japanese) | (See Japanese page) |
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| Registration To | Electromagnetic Compatibility (EMCJ) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Complex Permittivity Measurement of D_2O by Waveguide Penetration Method in Millimeter-Wave Band |
| Sub Title (in English) | |
| Keyword(1) | heavy water |
| Keyword(2) | waveguide-penetration method |
| Keyword(3) | complex permittivity measurement |
| Keyword(4) | millimeter-wave |
| 1st Author's Name | Yoshii SUGENO |
| 1st Author's Affiliation | Tokyo Metropolitan University() |
| 2nd Author's Name | Alfred KIK |
| 2nd Author's Affiliation | Tokyo Metropolitan University |
| 3rd Author's Name | Yukihisa SUZUKI |
| 3rd Author's Affiliation | Tokyo Metropolitan University |
| Date | 2012-09-07 |
| Paper # | EMCJ2012-55 |
| Volume (vol) | vol.112 |
| Number (no) | 201 |
| Page | pp.pp.- |
| #Pages | 5 |
| Date of Issue | |