Accelerating photon transport in Monte Carlo simulation using octree structure

使用八叉树结构加速蒙特卡罗模拟中的光子传输

基本信息

  • 批准号:
    07457204
  • 负责人:
  • 金额:
    $ 3.07万
  • 依托单位:
  • 依托单位国家:
    日本
  • 项目类别:
    Grant-in-Aid for Scientific Research (B)
  • 财政年份:
    1995
  • 资助国家:
    日本
  • 起止时间:
    1995 至 1996
  • 项目状态:
    已结题

项目摘要

The study was carried out to develop a high-speed calculation method in photon/electron transportation using a Monte Carlo simulation. Object description is important in performing the photon transport efficiently. In order to describe an object, three methods have been proposed : a shape-based (SV) approach, a voxel-based (VB) approach, and a solid geometry based approach. However, these three methods have some shortcoming (e.g., accuracy of boundaries, calculation time, amount of memory, manual instructions). To the problems we introduced an octree representation of an object to the photon transport using a Monte Carlo method. The representation of the object yields accurate boundaries of each medium and fast calculation of the photon transport with the same accuracy as the VB method using the finest voxels. Moreover, the octree structure for any object can be formed systematically.Our Monte Carlo code, first, establishes the simulation geometry by reading "octree string, " which is produced by forming an octree structure from a set of serial sections for the object before the simulation automatically, and then it transports photons in the geotry. Using the code, if the user just prepares a set of serial sections for the object in which he wants to simulate photon trajectories, he can perform the simulation automatically using the suboptimal geometry simplified by the octree representation without forming the optimal geometry by handwriting. The accuracy and ability of our code were confirmed by comparison with Electron Gamma Shower code system (EGS4) and simulations using a head phantom, respectively. Moreover, we examined our code using Zubal's digital phantoms (head and thorax) by comparing the results of the VB approach. In summary, the proposed method is efficient in the Monte Carlo simulation of any object.
本研究旨在发展一种利用Monte Carlo模拟的光子/电子输运的高速计算方法。目标描述在有效地执行光子传输中是重要的。为了描述一个对象,已经提出了三种方法:基于形状(SV)的方法,基于体素(VB)的方法,和基于立体几何的方法。然而,这三种方法都有一些缺点(例如,边界精度、计算时间、存储量、手动指令)。针对这一问题,我们采用蒙特卡罗方法,将物体的八叉树表示引入到光子输运中。对象的表示产生每个介质的准确边界和光子传输的快速计算,其精度与使用最精细体素的VB方法相同。此外,任何物体的八叉树结构都可以系统地形成。我们的蒙特卡罗代码首先通过阅读“八叉树串”来建立模拟几何结构,该“八叉树串”是在模拟之前自动从物体的一组连续部分形成八叉树结构而产生的,然后它在几何结构中传输光子。使用该代码,如果用户只是为他想要模拟光子轨迹的对象准备一组连续切片,则他可以使用由八叉树表示简化的次优几何结构自动执行模拟,而无需通过手写形成最优几何结构。我们的代码的准确性和能力进行了确认,通过比较与电子伽马淋浴代码系统(EGS 4)和模拟使用头部幻影,分别。此外,我们检查了我们的代码使用Zubal的数字幻影(头部和胸部)通过比较结果的VB方法。总之,所提出的方法是有效的任何对象的蒙特卡罗模拟。

项目成果

期刊论文数量(14)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
Koichi Ogawa: "Accelerating photon transport in Monte Carlo simulation" IEEE Conf. Record of Nucl. Sci. and Med. Imag. Conf.(in press).
Koichi Okawa:“在蒙特卡罗模拟中加速光子传输”IEEE Con​​f。
  • DOI:
  • 发表时间:
  • 期刊:
  • 影响因子:
    0
  • 作者:
  • 通讯作者:
Koichi Ogawa: "High speed calculation of photon transportation in Monte Carlo method." J.of Nucl.Med.36(5). 180P- (1995)
Koichi Okawa:“蒙特卡罗方法中光子传输的高速计算。”
  • DOI:
  • 发表时间:
  • 期刊:
  • 影响因子:
    0
  • 作者:
  • 通讯作者:
Koichi Ogawa: "Accelerating photon transport in Monte Carlo simulation" IEEE Conf.Record of Nucl.Sci.and Med.Imag.Conf.(in press). (1997)
Koichi Okawa:“蒙特卡罗模拟中加速光子传输”Nucl.Sci. 和 Med.Imag.Conf. 的 IEEE Con​​f.Record(正在印刷中)。
  • DOI:
  • 发表时间:
  • 期刊:
  • 影响因子:
    0
  • 作者:
  • 通讯作者:
Shigeru Maeda: "A Proposal of a Monte Carlo Method using octree structure" IEEE Conf. Record of Nucl. Sci. and Med. Imag. Conf.vol.4. 1687-1690 (1995)
Shigeru Maeda:“使用八叉树结构的蒙特卡罗方法的提案”IEEE Con​​f。
  • DOI:
  • 发表时间:
  • 期刊:
  • 影响因子:
    0
  • 作者:
  • 通讯作者:
Koichi Ogawa: "A new object modeling method in Monte Carlo simulation" Annals of Nucl. Med.vol.10. S173 (1996)
Koichi Okawa:“蒙特卡罗模拟中的一种新的对象建模方法”Nucl 年鉴。
  • DOI:
  • 发表时间:
  • 期刊:
  • 影响因子:
    0
  • 作者:
  • 通讯作者:
{{ item.title }}
{{ item.translation_title }}
  • DOI:
    {{ item.doi }}
  • 发表时间:
    {{ item.publish_year }}
  • 期刊:
  • 影响因子:
    {{ item.factor }}
  • 作者:
    {{ item.authors }}
  • 通讯作者:
    {{ item.author }}

数据更新时间:{{ journalArticles.updateTime }}

{{ item.title }}
  • 作者:
    {{ item.author }}

数据更新时间:{{ monograph.updateTime }}

{{ item.title }}
  • 作者:
    {{ item.author }}

数据更新时间:{{ sciAawards.updateTime }}

{{ item.title }}
  • 作者:
    {{ item.author }}

数据更新时间:{{ conferencePapers.updateTime }}

{{ item.title }}
  • 作者:
    {{ item.author }}

数据更新时间:{{ patent.updateTime }}

OGAWA Koichi其他文献

OGAWA Koichi的其他文献

{{ item.title }}
{{ item.translation_title }}
  • DOI:
    {{ item.doi }}
  • 发表时间:
    {{ item.publish_year }}
  • 期刊:
  • 影响因子:
    {{ item.factor }}
  • 作者:
    {{ item.authors }}
  • 通讯作者:
    {{ item.author }}

{{ truncateString('OGAWA Koichi', 18)}}的其他基金

Development of an innovative SPECT system without the rotational data acquisition
开发无需旋转数据采集的创新 SPECT 系统
  • 批准号:
    16K09025
  • 财政年份:
    2016
  • 资助金额:
    $ 3.07万
  • 项目类别:
    Grant-in-Aid for Scientific Research (C)
Development of a photon counting X-ray CT system which enabled us to image anatomical and functional information of organs
开发光子计数 X 射线 CT 系统,使我们能够对器官的解剖和功能信息进行成像
  • 批准号:
    23390307
  • 财政年份:
    2011
  • 资助金额:
    $ 3.07万
  • 项目类别:
    Grant-in-Aid for Scientific Research (B)
Development of a high resolution SPECT with a static data acquisition system with semiconductor detectors
开发带有半导体探测器的静态数据采集系统的高分辨率 SPECT
  • 批准号:
    20390332
  • 财政年份:
    2008
  • 资助金额:
    $ 3.07万
  • 项目类别:
    Grant-in-Aid for Scientific Research (B)
Ultra-high resolution SPECT with a semiconductor detector and a diverging collimator
具有半导体探测器和发散准直器的超高分辨率 SPECT
  • 批准号:
    18390337
  • 财政年份:
    2006
  • 资助金额:
    $ 3.07万
  • 项目类别:
    Grant-in-Aid for Scientific Research (B)
Development of a next generation X-ray CT with energy spectra of incident photons
开发具有入射光子能谱的下一代 X 射线 CT
  • 批准号:
    16390344
  • 财政年份:
    2004
  • 资助金额:
    $ 3.07万
  • 项目类别:
    Grant-in-Aid for Scientific Research (B)
Development of an imaging algorithm for myocardial SPECT with a semiconductor detector
使用半导体探测器开发心肌 SPECT 成像算法
  • 批准号:
    14570883
  • 财政年份:
    2002
  • 资助金额:
    $ 3.07万
  • 项目类别:
    Grant-in-Aid for Scientific Research (C)
Development of an accurate separation of two radionuclides with an artificial neural network in dual radioisotope SPECT data acquisition
在双放射性同位素 SPECT 数据采集中开发利用人工神经网络精确分离两种放射性核素的方法
  • 批准号:
    12670909
  • 财政年份:
    2000
  • 资助金额:
    $ 3.07万
  • 项目类别:
    Grant-in-Aid for Scientific Research (C)
Speed-up of Monte Carlo simulation with object description by using maximum rectangular region in diagnosis and radiation therapy
在诊断和放射治疗中使用最大矩形区域加速带有对象描述的蒙特卡罗模拟
  • 批准号:
    10670873
  • 财政年份:
    1998
  • 资助金额:
    $ 3.07万
  • 项目类别:
    Grant-in-Aid for Scientific Research (C)
Nursing Heavy Handling Works and The Questionnaires to nurses
护理繁重搬运工作及护士问卷调查
  • 批准号:
    06672336
  • 财政年份:
    1994
  • 资助金额:
    $ 3.07万
  • 项目类别:
    Grant-in-Aid for General Scientific Research (C)

相似海外基金

Collaborative Research: Engineering fractional photon transport for random laser devices
合作研究:随机激光设备的分数光子传输工程
  • 批准号:
    2110204
  • 财政年份:
    2021
  • 资助金额:
    $ 3.07万
  • 项目类别:
    Standard Grant
Development of Radiation-Distribution Estimation-System with Higher Precision Using Deep Neural Networks and Photon Transport Simulator and Its Implementation on Edge Device
利用深度神经网络和光子传输模拟器的更高精度辐射分布估计系统的开发及其在边缘设备上的实现
  • 批准号:
    20K11991
  • 财政年份:
    2020
  • 资助金额:
    $ 3.07万
  • 项目类别:
    Grant-in-Aid for Scientific Research (C)
GPU-Accelerated Monte Carlo Photon Transport Simulation Platform
GPU 加速蒙特卡罗光子传输仿真平台
  • 批准号:
    9173099
  • 财政年份:
    2015
  • 资助金额:
    $ 3.07万
  • 项目类别:
interaction data and geometry information for Monte Carlo photon transport simulations in radiotherapy
放射治疗中蒙特卡罗光子输运模拟的交互数据和几何信息
  • 批准号:
    288219-2004
  • 财政年份:
    2008
  • 资助金额:
    $ 3.07万
  • 项目类别:
    Discovery Grants Program - Individual
interaction data and geometry information for Monte Carlo photon transport simulations in radiotherapy
放射治疗中蒙特卡罗光子输运模拟的交互数据和几何信息
  • 批准号:
    288219-2004
  • 财政年份:
    2007
  • 资助金额:
    $ 3.07万
  • 项目类别:
    Discovery Grants Program - Individual
interaction data and geometry information for Monte Carlo photon transport simulations in radiotherapy
放射治疗中蒙特卡罗光子输运模拟的交互数据和几何信息
  • 批准号:
    288219-2004
  • 财政年份:
    2006
  • 资助金额:
    $ 3.07万
  • 项目类别:
    Discovery Grants Program - Individual
interaction data and geometry information for Monte Carlo photon transport simulations in radiotherapy
放射治疗中蒙特卡罗光子输运模拟的交互数据和几何信息
  • 批准号:
    288219-2004
  • 财政年份:
    2005
  • 资助金额:
    $ 3.07万
  • 项目类别:
    Discovery Grants Program - Individual
interaction data and geometry information for Monte Carlo photon transport simulations in radiotherapy
放射治疗中蒙特卡罗光子输运模拟的交互数据和几何信息
  • 批准号:
    288219-2004
  • 财政年份:
    2004
  • 资助金额:
    $ 3.07万
  • 项目类别:
    Discovery Grants Program - Individual
{{ showInfoDetail.title }}

作者:{{ showInfoDetail.author }}

知道了