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A two-step Monte Carlo simulation method for radiation dose calculation

A Monte Carlo simulation and radiation technology, which is used in computing, complex mathematical operations, special data processing applications, etc., and can solve problems such as slow computing speed.

Active Publication Date: 2019-10-11
台州安奇灵智能科技有限公司
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  • Abstract
  • Description
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Problems solved by technology

[0004] The introduction of Monte Carlo simulation, which solves the problem of large memory usage generated in energy transport theory, but the calculation speed is very slow

Method used

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  • A two-step Monte Carlo simulation method for radiation dose calculation
  • A two-step Monte Carlo simulation method for radiation dose calculation
  • A two-step Monte Carlo simulation method for radiation dose calculation

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Embodiment Construction

[0053] The basic principles and main features of the present invention and the advantages of the present invention have been shown and described above. Those skilled in the art should understand that the present invention is not limited by the above-mentioned embodiments, and that described in the above-mentioned embodiments and the specification only illustrates the principle of the present invention, and the present invention can also have Various changes and improvements.

[0054] The high-speed Monte Carlo simulation method in the biological detection of the present invention comprises the steps:

[0055] Step 1. Perform Monte Carlo simulation to obtain an array of effective seed values; because X-rays also belong to the category of electromagnetic waves, in Monte Carlo simulation, X-rays are named photons, which is the customary naming method for Monte Carlo simulations of X-rays .

[0056] Step 1.1 Generation of random numbers: Combining the current time into a seed va...

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Abstract

The invention discloses a double-step Monte Carlo simulation method applied to radioactive ray dose computation. The double-step Monte Carlo simulation method comprises the following steps: step 1, performing Monte Carlo simulation, thereby acquiring valid seed numerical array; step 2, after acquiring the valid seed numerical array in the step 1, by utilizing valid seed numerical values, performing secondary Monte Carlo simulation and computing radioactive ray dose distribution inside the human body at a high speed. The invention provides a double-step Monte Carlo simulation algorithm; simulation of photons acted on a tumor region according to the valid seed numerical values can be performed, and simulation of photons without passing through the tumor region is avoided, so that computational efficiency is improved.

Description

technical field [0001] The invention relates to the numerical calculation of the radiation dose intensity distribution in the human body, which is mainly used for simulating the propagation and dose distribution of X-rays in the human body. Background technique [0002] Radiation therapy is an important means of tumor treatment, 70% of tumor patients need to receive radiation therapy at different stages of the disease course. However, when X-rays irradiate tumors, they also affect normal organs and tissues. In order to improve the treatment efficiency and reduce the damage to normal tissues. Before radiation therapy, it is necessary to calculate the distribution of X-rays inside the human body to assist medical staff in determining whether the X-ray dose in the tumor area has reached the therapeutic dose, and whether the radiation dose in normal tissues is below the safe threshold. [0003] Using the energy transport theory, the dose distribution of X-rays inside the human...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F17/50G06F17/16
Inventor 蔡夫鸿何赛灵
Owner 台州安奇灵智能科技有限公司
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