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Search Results: Records 1-16 displayed on this page of 16
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Journal Articles

Addendum report of the JHPS expert committee on radiation protection of the lens of the eye, 2; When and how should the dosimetry of beta $$H_{rm p}$$(3) be made?

Akahane, Keiichi*; Iimoto, Takeshi*; Ichiji, Takeshi*; Iwai, Satoshi*; Oguchi, Hiroyuki*; Ono, Kazuko*; Kawaura, Chiyo*; Kurosawa, Tadahiro*; Tatsuzaki, Hideo*; Tsujimura, Norio; et al.

Hoken Butsuri, 50(4), p.257 - 261, 2015/12

In a mixed field of photon and beta radiations, the same dose assigned to skin is normally assigned to the dose to the lens of the eye as a conservative estimate of H$$_{p}$$(3). In exceptional cases that a very high beta dose might be imparted of the same order with the dose limit, however, the conservatively biased dose must be too limiting, and thereby an accurate estimate of beta $$H_{rm p}$$(3) is desirable. This article presents a practical proposal of when and how the dosimetry of beta $$H_{rm p}$$(3) should be made.

Journal Articles

Interim report of the JHPS expert committee on radiation protection of the lens of the eye, 2; The Dosimetry method for the lens of the eye of workers in Japan

Akahane, Keiichi*; Iimoto, Takeshi*; Ichiji, Takeshi*; Iwai, Satoshi*; Oguchi, Hiroyuki*; Ono, Kazuko*; Kawaura, Chiyo*; Tatsuzaki, Hideo*; Tsujimura, Norio; Hamada, Nobuyuki*; et al.

Hoken Butsuri, 49(3), p.153 - 156, 2014/09

https://doi.org/10.5453/jhps.49.153

A brief review is given of the history and methodology of external dosimetry for the lens of the eye. Under the 1989 revision to domestic radiological protection regulations, the concept on the effective dose equivalent and the dose limit to the lens of the eye (150 mSv/y) both introduced in ICRP 1977 recommendations has changed nationwide the external monitoring methodology in non-uniform exposure situations to the trunk of a radiological worker. In such situations, often created by the presence of a protective apron, the worker is required to use at least two personal dosemeters, one worn on the trunk under the apron and the other, typically, at the collar over the apron. The latter dosemeter serves the dual purpose of providing the dose profile across the trunk for improved effective dose equivalent assessment and of estimating the dose to lens of the eye. The greater or appropriate value between $$H_{rm p}$$(10) and $$H_{rm p}$$(0.07), given by the dosemeter, is generally used as a surrogate of $$H_{rm p}$$(3).

Journal Articles

Controlling the phase matching conditions of optical parametric chirped-pulse amplification using partially deuterated KDP

Ogawa, Kanade; Sueda, Keiichi*; Akahane, Yutaka; Aoyama, Makoto; Tsuji, Koichi; Fujioka, Kana*; Kanabe, Tadashi*; Yamakawa, Koichi; Miyanaga, Noriaki*

Optics Express (Internet), 17(10), p.7744 - 7749, 2009/05

https://doi.org/10.1364/OE.17.007744
 Times Cited Count：15 Percentile：54.55(Optics)

Using a partially deuterated KDP crystal for an optical parametric amplifier, we demonstrated ultrabroadband optical parametric chirped-pulse amplification of more than 250 nm bandwidth at a center wavelength of 1050 nm. We numerically show how to control the broadband phase matching conditions at different wavelengths to match center wavelengths of suitable broadband seed sources by adjusting the deuteration level in partially deuterated KDP.

JAEA Reports

Design study on H.L.W. geologic repository, IV; for 1984

Ara, Hiroshige*; Fukumitsu, Kenji*; Iizuka, Yunosuke*; Ishii, Takashi*; Izumiya, Yasushi*; Imazu, Masanori*; Utsugida, Yoshizo*; Hasegawa, Makoto*; Maeda, Masaya*; Yabe, Yukio*; et al.

PNC TJ199 84-04VOL1, 20 Pages, 1984/03

PNC-TJ199-84-04VOL1.pdf:0.88MB

None

Oral presentation

Case study on the development of methodologies for validation of groundwater flow and mass transport model, 5; Effects of the modeling concept of fractures on groundwater flow and mass transport characterization

Hane, Koji*; Onoe, Hironori*; Ishibashi, Masayuki*; Esaki, Taichi*; Tagawa, Yoichi*; Tabei, Kazuto*; Namikawa, Tadashi*; Saegusa, Hiromitsu*; Ishida, Keisuke*; Sawada, Atsushi

no journal, , 

no abstracts in English

Oral presentation

Controlling the phase matching conditions of optical parametric chirped pulse amplification using partially deuterated KDP

Ogawa, Kanade; Sueda, Keiichi*; Akahane, Yutaka; Aoyama, Makoto; Tsuji, Koichi; Fujioka, Kana*; Kanabe, Tadashi*; Yamakawa, Koichi; Miyanaga, Noriaki*

no journal, , 

Using a partially deuterated KDP crystal for an optical parametric amplifier, we demonstrated ultrabroadband optical parametric chirped-pulse amplification of more than 250 nm bandwidth at a center wavelength of 1050 nm. We numerically show how to control the broadband phase matching conditions at different wavelengths to match center wavelengths of suitable broadband seed sources by adjusting the deuteration level in partially deuterated KDP.

Oral presentation

Development of methodologies for validation of groundwater flow and mass transport model, 2; A Case study using investigation data obtained at the Mizunami Underground Research Laboratory

Hane, Koji*; Onoe, Hironori*; Ishibashi, Masayuki*; Tabei, Kazuto*; Namikawa, Tadashi*; Tagawa, Yoichi*; Saegusa, Hiromitsu*; Ishida, Keisuke*; Fujisaki, Kiyoshi*; Sawada, Atsushi

no journal, , 

no abstracts in English

Oral presentation

A Study on the model validation of groundwater flow and mass transport for fractured rock masses, 1; Effects of the modeling uncertainty on the groundwater flow characteristics

Ishibashi, Masayuki*; Onoe, Hironori*; Esaki, Taichi*; Tagawa, Yoichi*; Namikawa, Tadashi*; Hane, Koji*; Saegusa, Hiromitsu*; Ishida, Keisuke*; Sawada, Atsushi

no journal, , 

no abstracts in English

Oral presentation

Optimization for OPCPA phase matching condition using partially deuterated KDP

Ogawa, Kanade; Sueda, Keiichi*; Akahane, Yutaka; Aoyama, Makoto; Tsuji, Koichi; Fujioka, Kana*; Kanabe, Tadashi*; Miyanaga, Noriaki*; Yamakawa, Koichi

no journal, , 

Using a partially deuterated KDP crystal for an optical parametric amplifier, we demonstrated ultrabroadband optical parametric chirped-pulse amplification of more than 250 nm bandwidth at a center wavelength of 1050 nm. We numerically show how to control the broadband phase matching conditions at different wavelengths to match center wavelengths of suitable broadband seed sources by adjusting the deuteration level in partially deuterated KDP.

Oral presentation

Optical parametric chirped pulse amplification using partially deuterated KDP

Ogawa, Kanade; Sueda, Keiichi*; Akahane, Yutaka; Aoyama, Makoto; Tsuji, Koichi; Fujioka, Kana*; Kanabe, Tadashi*; Miyanaga, Noriaki*; Yamakawa, Koichi

no journal, , 

Using a partially deuterated KDP crystal for an optical parametric amplifier, we demonstrated ultrabroadband optical parametric chirped-pulse amplification of more than 250 nm bandwidth at a center wavelength of 1050 nm. We numerically show how to control the broadband phase matching conditions at different wavelengths to match center wavelengths of suitable broadband seed sources by adjusting the deuteration level in partially deuterated KDP.

Oral presentation

Fracture conditioning examination of DFN model by in-situ investigation data, 1

Esaki, Taichi*; Ishibashi, Masayuki*; Tagawa, Yoichi*; Namikawa, Tadashi*; Hane, Koji*; Masumoto, Kazuhiko*; Onoe, Hironori*; Saegusa, Hiromitsu*; Ishida, Keisuke*; Fujisaki, Kiyoshi*; et al.

no journal, , 

no abstracts in English

Oral presentation

Case study on the development of methodologies for validation of groundwater flow and mass transport model, 1; Outline of the study

Onoe, Hironori*; Ishibashi, Masayuki*; Esaki, Taichi*; Tagawa, Yoichi*; Tabei, Kazuto*; Namikawa, Tadashi*; Hane, Koji*; Saegusa, Hiromitsu*; Ishida, Keisuke*; Sawada, Atsushi

no journal, , 

no abstracts in English

Oral presentation

Fracture conditioning examination of DFN model by in-situ investigation data, 2

Namikawa, Tadashi*; Ishibashi, Masayuki*; Esaki, Taichi*; Tagawa, Yoichi*; Hane, Koji*; Masumoto, Kazuhiko*; Onoe, Hironori*; Saegusa, Hiromitsu*; Ishida, Keisuke*; Fujisaki, Kiyoshi*; et al.

no journal, , 

no abstracts in English

Oral presentation

Case study on the development of methodologies for validation of groundwater flow and mass transport model, 2; Effects of the modeling methods of low permeability fractures on groundwater flow characterization

Ishibashi, Masayuki*; Onoe, Hironori*; Esaki, Taichi*; Tagawa, Yoichi*; Tabei, Kazuto*; Namikawa, Tadashi*; Hane, Koji*; Saegusa, Hiromitsu*; Ishida, Keisuke*; Sawada, Atsushi

no journal, , 

no abstracts in English

Oral presentation

Case study on the development of methodologies for validation of groundwater flow and mass transport model, 3; Effects of the conditioning methods of fractures on groundwater flow characterization

Namikawa, Tadashi*; Onoe, Hironori*; Esaki, Taichi*; Hane, Koji*; Tagawa, Yoichi*; Ishibashi, Masayuki*; Tabei, Kazuto*; Saegusa, Hiromitsu*; Ishida, Keisuke*; Sawada, Atsushi

no journal, , 

no abstracts in English

Oral presentation

Case study on the development of methodologies for validation of groundwater flow and mass transport model, 4; Construction of the ECPM model based on the DFN model

Tagawa, Yoichi*; Onoe, Hironori*; Esaki, Taichi*; Hane, Koji*; Ishibashi, Masayuki*; Namikawa, Tadashi*; Tabei, Kazuto*; Saegusa, Hiromitsu*; Ishida, Keisuke*; Sawada, Atsushi

no journal, , 

no abstracts in English

16 (Records 1-16 displayed on this page)
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