IWASAKI Akira 岩崎晃

Researcher Number	60111233
Other IDs
External Links
Affiliation (based on the past Project Information) *help	2007: Hirosaki University, Hirosaki University, Graduate School of Health Sciences, Professor 2006: 弘前大学, 医学部, 教授 2001 – 2004: 弘前大学, 医学部, 教授
Review Section/Research Field	Principal Investigator Radiation science / Radiation science
Keywords	Principal Investigator X-ray spectrum / High-energy X-rays / X線スペクトル / コンボルーション法 / 高エネルギーX線 / Radiation therapy physics / Multileaf collimator / Error function / Kernel / Stereotactic radiotherapy … More / Covolution method / 高エネルギーX線スペクトル / リーフ照射野出力差分法 / 軸外コリメータ散乱係数 / 線源軸外線量比 / 放射線治療物理学 / マルチリーフコリメータ / 誤差関数 / カーネル / 定位照射 / Kerma / Convolution method / Absorbed dose / 電子汚染 / 不均質 / 散乱線量 / 1次線量 / 散乱線量拡散分布 / 一次線量拡散分布 / 放射線物理学 / 高エネルギー光子 / 線量計算 / 放射線治療学 / カーマ / 吸収線量 Less

Development of techniques for increasing the accuracy of dose calculation in a convolution method used for body stereotactic radiotherapyPrincipal Investigator
- Principal Investigator
  
  IWASAKI Akira
- Project Period (FY)
  2006 – 2007
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Radiation science
- Research Institution
  Hirosaki University
Methods of improving the accuracy of high-energy X-ray absorbed dose calculated using a convolution approachPrincipal Investigator
- Principal Investigator
  
  IWASAKI Akira
- Project Period (FY)
  2001 – 2004
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Radiation science
- Research Institution
  Hirosaki University

All 2007 2006 2005 2004 2003 2002 2001

All Journal Article Presentation

[Journal Article] X線スペクトルに基づいてモンテカルロシミュレーションで構築した高エネルギーX線一次及び散乱ドーズカーネルの開発2007
- Author(s)
  笹森真実, 岩崎晃, 齋藤秀敏, 木村重伸, 清野守央, 駒井史雄
- Journal Title
  
  弘前大学医学部保健学科紀要 6巻
  
  Pages: 101-114
- NAID
  110006225014
- Data Source
  KAKENHI-PROJECT-18591375
[Journal Article] New Development of High-Energy X-Ray Primary and Scatter Dose Kernels by Monte Carlo Simulation2006
- Author(s)
  Makoto Sasamori, Akira Iwasaki, Hidetoshi Saitoh, Shigenobu Kimura, Morio Seino, Fumio Komai
- Journal Title
  
  Proceedings of the Thirteenth EGS Users' Meeting in Japan (KEK, Tsukuba, Japan)
  
  Pages: 53-65
- Data Source
  KAKENHI-PROJECT-18591375
[Journal Article] MLC不整形照射野におけるコリメータ散乱係数(Sc)を算出する二つの近似法2006
- Author(s)
  奈良鉄造, 岩崎晃, 駒井史雄, 佐藤和彦, 福士英人, 洞内美明
- Journal Title
  
  日本放射線技術学会誌 62・7
  
  Pages: 961-970
- Data Source
  KAKENHI-PROJECT-18591375
[Journal Article] Characteristic features of a high-energy x-ray spectra estimation method based on the Waggener iterative perturbation principle2006
- Author(s)
  Akira Iwasaki, Mamoru Kubota, Junichi Hirota, Akira Fujimori, Katsumasa Suzaki, Masahiko Aoki, Yoshinao Abe
- Journal Title
  
  Medical Physics 33 ・ 11
  
  Pages: 4056-4063
- NAID
  10027060643
- Data Source
  KAKENHI-PROJECT-18591375
[Journal Article] Formulation of spectra-based attenuation coefficients in water as a function of depth and off-axis distance for 4, 10, and 15 MV X-ray beams2005
- Author(s)
  A.Iwasaki, M.Kubota, A.Fujimori, K.Suzaki, Y.Abe, H.Ono, K.Nishimura, H.Yokoyama
- Journal Title
  
  Radiation Physics and Chemistry 72・6
  
  Pages: 657-661
- Data Source
  KAKENHI-PROJECT-13670907
[Journal Article] Formulation of spectra-based attenuation coefficients in water as a function of depth and off-axis distance for 4,10, and 15 MV X-ray beams.2005
- Author(s)
  A.Iwasaki, M.Kubota, A.Fujimori, K.Suzaki, Y.Abe, H.Ono, K.Nishimura, H.Yokoyama
- Journal Title
  
  Radiation Physics and Chemistry 72(6)(in press)
  
  Pages: 657-661
- Description
  「研究成果報告書概要(欧文)」より
- Data Source
  KAKENHI-PROJECT-13670907
[Journal Article] Formulation of spectra-based attenuation coefficients in water as a function of depth and off-axis distance for 4, 10, and 15 MV X-ray beams2005
- Author(s)
  A.Iwasaki
- Journal Title
  
  Radiation Physics and Chemistry 72
  
  Pages: 657-661
- Description
  「研究成果報告書概要(和文)」より
- Data Source
  KAKENHI-PROJECT-13670907
[Journal Article] コリメータ散乱係数(S_c)およびファントム散乱係数(S_p)を用いた4MV X線不整形照射野線量評価法2004
- Author(s)
  奈良鉄造, 岩崎晃, 駒井史雄, 佐藤和彦, 福士英人, 洞内美明
- Journal Title
  
  日本放射線技術学会雑誌第60巻,第11号
  
  Pages: 1592-1603
- Data Source
  KAKENHI-PROJECT-13670907
[Journal Article] コリメータ散乱係数(S_c)およびファントム散乱係数(S_p)を用いた10MV X線不整形照射野線量評価法2004
- Author(s)
  奈良鉄造, 岩崎晃, 佐藤和彦, 駒井史雄, 福士英人, 洞内美明
- Journal Title
  
  日本放射線技術学会雑誌第60巻,第1号
  
  Pages: 87-100
- Data Source
  KAKENHI-PROJECT-13670907
[Journal Article] Method for estimating 4MV X-ray irregular field dose using the collimator scatter factor (S_c) and phantom scatter factor (S_p).2004
- Author(s)
  T.Nara, A.Iwasaki, F.Komai, K.Sato, H.Fukushi, Y.Horanai
- Journal Title
  
  Jpn.J.Radiol.Technol. 60(11)
  
  Pages: 1592-1603
- NAID
  110003467396
- Description
  「研究成果報告書概要(欧文)」より
- Data Source
  KAKENHI-PROJECT-13670907
[Journal Article] Method of estimating 10 MV X-ray irregular field dose using the collimator scatter factor (S_c) and phantom scatter factor (S_p)2004
- Author(s)
  T.Nara, A.Iwasaki, K.Sato, F.Komai, H.Fukushi, Y.Horanai
- Journal Title
  
  Jpn.J.Radiol.Technol. 60(1)
  
  Pages: 87-100
- NAID
  110003434537
- Description
  「研究成果報告書概要(欧文)」より
- Data Source
  KAKENHI-PROJECT-13670907
[Journal Article] A method for obtaining 4 and 10 MV X-ray spectra using the iterative perturbation principle2003
- Author(s)
  A.Iwasaki
- Journal Title
  
  Bulletin of Health Sciences Hirosaki 2
  
  Pages: 61-72
- NAID
  110004772477
- Description
  「研究成果報告書概要(和文)」より
- Data Source
  KAKENHI-PROJECT-13670907
[Journal Article] A method for obtaining 4 and 10 MV X-ray spectra using the iterative perturbation principle.2003
- Author(s)
  A.Iwasaki, H.Matsutani, M.Kubota, A.Fuimori, K.Suzuki, S.Sato, T.Morita, Y.Abe
- Journal Title
  
  Bulletin of Health Sciences Hirosaki 2
  
  Pages: 61-72
- NAID
  110004772477
- Description
  「研究成果報告書概要(欧文)」より
- Data Source
  KAKENHI-PROJECT-13670907
[Journal Article] A practical method for estimating high-energy X-ray spectra using the iterative perturbation principle proposed by Waggener2003
- Author(s)
  A.Iwasaki
- Journal Title
  
  Radiation Physics and Chemistry 67
  
  Pages: 81-91
- Description
  「研究成果報告書概要(和文)」より
- Data Source
  KAKENHI-PROJECT-13670907
[Journal Article] A practical method for estimating high-energy X-ray spectra using the iterative perturbation principle proposed by Waggener.2003
- Author(s)
  A.Iwasaki, H.Matsutani, M.Kubota, A.Fujimori, K.Suzaki, Y.Abe
- Journal Title
  
  Radiation Physics and Chemistry 67(2)
  
  Pages: 81-91
- Description
  「研究成果報告書概要(欧文)」より
- Data Source
  KAKENHI-PROJECT-13670907
[Journal Article] Calculation of 10 MV x-ray beam-axis doses in layered cork heterogeneity phantoms using a convolution method2002
- Author(s)
  A.Iwasaki
- Journal Title
  
  Bulletin of Health Sciences Hirosaki 1
  
  Pages: 61-82
- NAID
  110004772486
- Description
  「研究成果報告書概要(和文)」より
- Data Source
  KAKENHI-PROJECT-13670907
[Journal Article] 10 MV X-ray central-ads dose calculation in thorax-like phantoms (water/cork) using the differential primary and scatter method.2002
- Author(s)
  A.Iwasaki
- Journal Title
  
  Radiation Physics and Chemistry 65(1)
  
  Pages: 11-26
- Description
  「研究成果報告書概要(欧文)」より
- Data Source
  KAKENHI-PROJECT-13670907
[Journal Article] Comments of the primary and scatter dose-spread kernels used for convolution methods2002
- Author(s)
  A.Iwasaki
- Journal Title
  
  Radiation Physics and Chemistry 65
  
  Pages: 595-597
- NAID
  10007135038
- Description
  「研究成果報告書概要(和文)」より
- Data Source
  KAKENHI-PROJECT-13670907
[Journal Article] A method for 10 MV X-ray scatter dose-spread kernel construction based on the Bjarngarcl scatter factor formulation.2002
- Author(s)
  A.Iwasaki
- Journal Title
  
  Radiation Physics and Chemistry 64(2)
  
  Pages: 89-98
- Description
  「研究成果報告書概要(欧文)」より
- Data Source
  KAKENHI-PROJECT-13670907
[Journal Article] Comments on evaluation method for equivalent square fields to the collimator scatter factors of rectangular fields.2002
- Author(s)
  T.Nara, A.Iwasaki, K.Sato, Y.Horanai, F.Komai, H.Fukushi
- Journal Title
  
  Jpn.J.Radiol.Technol. 58(6)
  
  Pages: 848-857
- NAID
  110003445486
- Description
  「研究成果報告書概要(欧文)」より
- Data Source
  KAKENHI-PROJECT-13670907
[Journal Article] Comments of the primary and scatter dose-spread kernels used for convolution methods.2002
- Author(s)
  A.Iwasaki
- Journal Title
  
  Radiation Physics and Chemistry 65(6)
  
  Pages: 595-597
- NAID
  10007135038
- Description
  「研究成果報告書概要(欧文)」より
- Data Source
  KAKENHI-PROJECT-13670907
[Journal Article] A method for 10 MV X-ray scatter dose-spread kernel construction based on the Bjarngard scatter factor formulation2002
- Author(s)
  A.Iwasaki
- Journal Title
  
  Radiation Physics and Chemistry 61
  
  Pages: 89-998
- Description
  「研究成果報告書概要(和文)」より
- Data Source
  KAKENHI-PROJECT-13670907
[Journal Article] Calculation of 10 MV x-ray beam-axis doses in layered cork heterogeneity phantoms using a convolution method.2002
- Author(s)
  A.Iwasaki, T.Nata, M.Kubota, A.Fujimori, K.Suzaki, S.Sato, T.Morita, Y.Abe
- Journal Title
  
  Bulletin of Health Sciences Hirosaki. 1
  
  Pages: 61-82
- NAID
  110004772486
- Description
  「研究成果報告書概要(欧文)」より
- Data Source
  KAKENHI-PROJECT-13670907
[Journal Article] 10 MV X-ray central-axis dose calculation in thorax-like phantoms (water/cork) using the differential primary and scatter method2002
- Author(s)
  A.Iwasaki
- Journal Title
  
  Radiation Physics and Chemistry 65
  
  Pages: 11-26
- Description
  「研究成果報告書概要(和文)」より
- Data Source
  KAKENHI-PROJECT-13670907
[Journal Article] Comments an the primary and scatter dose-spread kernels used for convolution methods.2001
- Author(s)
  A.Iwasaki
- Journal Title
  
  Japanese Journal of Medical Physics 21(2)
  
  Pages: 106-110
- NAID
  10007135038
- Description
  「研究成果報告書概要(欧文)」より
- Data Source
  KAKENHI-PROJECT-13670907
[Journal Article] コンボルーション法で用いる一次及び散乱線量拡散分布に関する考察2001
- Author(s)
  岩崎晃
- Journal Title
  
  日本医学物理学会機関誌 21
  
  Pages: 106-110
- NAID
  10007135038
- Description
  「研究成果報告書概要(和文)」より
- Data Source
  KAKENHI-PROJECT-13670907
[Presentation] Introduction of an off-axis collimator scatter factor(S_C)and a source off-center ratio(OCR_<source>)for calculation of off-axis in-air outputs2007
- Author(s)
  Fumio Komai, Akira Iwasaki, Shigenobu Kimura, Morio Seino, Makoto Sasamori
- Organizer
  15th International Conference on the Use of Computers in Radiation Therapy
- Place of Presentation
  カナダ(トロント、ヒルトンホテル)
- Data Source
  KAKENHI-PROJECT-18591375
[Presentation] Calculation of MLC in-air outputs using a leaf-field output subtraction method2007
- Author(s)
  Shigenobu Kimura, Akira Iwasaki, Kohji Sutoh, Morio Seino, Fumio Komai, Makoto Sasamori
- Organizer
  15^<th> International Conference on the Use of Computers in Radiation Therapy
- Place of Presentation
  カナダ(トロント、ヒルトンホテル)
- Description
  「研究成果報告書概要(和文)」より
- Data Source
  KAKENHI-PROJECT-18591375
[Presentation] Calculation of MLC in-air outputs using a leaf-field output subtraction method2007
- Author(s)
  Shigenobu Kimura, Akira Iwasaki, Kohji Sutoh, Morio Seino, Fumio Komai, Makoto Sasamori
- Organizer
  15th International Conference on the Use of Computers in Radiation Therapy
- Place of Presentation
  カナダ(トロント、ヒルトンホテル)
- Data Source
  KAKENHI-PROJECT-18591375
[Presentation] Proposals to improve the accuracy of convolution-based dose calculation2007
- Author(s)
  Akira Iwasaki, Shigenobu Kimura, Morio Seino, Fumio Komai, Makoto Sasamori
- Organizer
  15^<th> International Conference on the Use of Computers in Radiation Therapy
- Place of Presentation
  カナダ(トロント、ヒルトンホテル)
- Description
  「研究成果報告書概要(和文)」より
- Data Source
  KAKENHI-PROJECT-18591375
[Presentation] Introduction of an off-axis collimator scatter factor (S_c) and a source off-center ratio (OCR_<source>) for calculation of off-axis in-air outputs2007
- Author(s)
  Fumio Komai, Akira Iwasaki, Shigenobu Kimura, Morio Seino, Makoto Sasamori:
- Organizer
  15^<th> International Conference on the Use of Computers in Radiation Therapy
- Place of Presentation
  Hilton Hotel, Toronto, Canada
- Description
  「研究成果報告書概要(欧文)」より
- Data Source
  KAKENHI-PROJECT-18591375
[Presentation] Monte Carlo simulation for constructing dose kernels based on the differential dose concept2007
- Author(s)
  Makoto Sasamori, Akira Iwasaki, Hidetoshi Saitoh, Shigenobu Kimura, Morio Seino^1, Fumio Komai
- Organizer
  15^<th> International Conference on the Use of Computers in Radiation Therapy
- Place of Presentation
  Hilton Hotel, Toronto, Canada
- Description
  「研究成果報告書概要(欧文)」より
- Data Source
  KAKENHI-PROJECT-18591375
[Presentation] Introduction of an off-axis collimator scatter factor (S_C) and a source off-center ratio (OCR_<source>) for calculation of off-axis in-air outputs2007
- Author(s)
  Fumio Komai, Akira Iwasaki, Shigenobu Kimura, Morio Seino, Makoto Sasamori
- Organizer
  15^<th> International Conference on the Use of Computers in Radiation Therapy
- Place of Presentation
  カナダ(トロント、ヒルトンホテル)
- Description
  「研究成果報告書概要(和文)」より
- Data Source
  KAKENHI-PROJECT-18591375
[Presentation] Proposals to improve the accuracy of convolution-based dose calculation2007
- Author(s)
  Akira Iwasaki, Shigenobu Kimura, Morio Seino, Fumio Komai, Makoto Sasamori
- Organizer
  15th International Conference on the Use of Computers in Radiation Therapy
- Place of Presentation
  カナダ(トロント、ヒルトンホテル)
- Data Source
  KAKENHI-PROJECT-18591375
[Presentation] Monte Carlo simulation for constructing dose kernels based on the differential dose concept2007
- Author(s)
  Makoto Sasamori, Akira Iwasaki, Hidetoshi Saitoh, Shigenobu Kimura, Morio Seino^I, Fumio Komai
- Organizer
  15th International Conference on the Use of Computers in Radiation Therapy
- Place of Presentation
  カナダ(トロント、ヒルトンホテル)
- Description
  「研究成果報告書概要(和文)」より
- Data Source
  KAKENHI-PROJECT-18591375
[Presentation] Proposals to improve the accuracy of convolution-based dose Calculation2007
- Author(s)
  Akira Iwasaki, Shigenobu Kimura, Morio Seino, Fumio Komai, Makoto Sasamori
- Organizer
  15^<th> International Conference on the Use of Computers in Radiation Therapy
- Place of Presentation
  Hilton Hotel, Toronto, Canada
- Description
  「研究成果報告書概要(欧文)」より
- Data Source
  KAKENHI-PROJECT-18591375
[Presentation] Calculation of MLC in-air outputs using a leaf-field output subtraction method2007
- Author(s)
  Shigenobu Kimura, Akira Iwasaki, Kohji Sutoh, Morio Seino, Fumio Komai, Makoto Sasamori
- Organizer
  15^<th> International Conference on the Use of Computers in Radiation Therapy
- Place of Presentation
  Hilton Hotel, Toronto, Canada
- Description
  「研究成果報告書概要(欧文)」より
- Data Source
  KAKENHI-PROJECT-18591375

1. KUBOTA Mamoru (80133891)

# of Collaborated Projects: 2 results

# of Collaborated Products: 6 results
2. MATSUTANI Hideya (30241483)

# of Collaborated Projects: 1 results

# of Collaborated Products: 2 results
3. HIROTA Junichi (00333732)

# of Collaborated Projects: 1 results

# of Collaborated Products: 1 results
4. ABE Yoshinao (10167950)

# of Collaborated Projects: 1 results

# of Collaborated Products: 1 results

IWASAKI Akira 岩崎 晃

Research Projects

Research Products

Co-Researchers

Development of techniques for increasing the accuracy of dose calculation in a convolution method used for body stereotactic radiotherapyPrincipal Investigator

Principal Investigator

Project Period (FY)

Research Category

Research Field

Research Institution

Methods of improving the accuracy of high-energy X-ray absorbed dose calculated using a convolution approachPrincipal Investigator

Principal Investigator

Project Period (FY)

Research Category

Research Field

Research Institution

[Journal Article] X線スペクトルに基づいてモンテカルロシミュレーションで構築した高エネルギーX線一次及び散乱ドーズカーネルの開発2007

Author(s)

Journal Title

NAID

Data Source

[Journal Article] New Development of High-Energy X-Ray Primary and Scatter Dose Kernels by Monte Carlo Simulation2006

Author(s)

Journal Title

Data Source

[Journal Article] MLC不整形照射野におけるコリメータ散乱係数(Sc)を算出する二つの近似法2006

Author(s)

Journal Title

Data Source

[Journal Article] Characteristic features of a high-energy x-ray spectra estimation method based on the Waggener iterative perturbation principle2006

Author(s)

Journal Title

NAID

Data Source

[Journal Article] Formulation of spectra-based attenuation coefficients in water as a function of depth and off-axis distance for 4, 10, and 15 MV X-ray beams2005

Author(s)

Journal Title

Data Source

[Journal Article] Formulation of spectra-based attenuation coefficients in water as a function of depth and off-axis distance for 4,10, and 15 MV X-ray beams.2005

Author(s)

Journal Title

Description

Data Source

[Journal Article] Formulation of spectra-based attenuation coefficients in water as a function of depth and off-axis distance for 4, 10, and 15 MV X-ray beams2005

Author(s)

Journal Title

Description

Data Source

[Journal Article] コリメータ散乱係数(S_c)およびファントム散乱係数(S_p)を用いた4MV X線不整形照射野線量評価法2004

Author(s)

Journal Title

Data Source

[Journal Article] コリメータ散乱係数(S_c)およびファントム散乱係数(S_p)を用いた10MV X線不整形照射野線量評価法2004

Author(s)

Journal Title

Data Source

[Journal Article] Method for estimating 4MV X-ray irregular field dose using the collimator scatter factor (S_c) and phantom scatter factor (S_p).2004

Author(s)

Journal Title

NAID

Description

Data Source

[Journal Article] Method of estimating 10 MV X-ray irregular field dose using the collimator scatter factor (S_c) and phantom scatter factor (S_p)2004

Author(s)

Journal Title

NAID

Description

Data Source

[Journal Article] A method for obtaining 4 and 10 MV X-ray spectra using the iterative perturbation principle2003

Author(s)

Journal Title

NAID

Description

Data Source

[Journal Article] A method for obtaining 4 and 10 MV X-ray spectra using the iterative perturbation principle.2003

Author(s)

Journal Title

NAID

Description

Data Source

IWASAKI Akira 岩崎晃