Nuclear Techniques ›› 2018, Vol. 41 ›› Issue (5): 50201-050201.doi: 10.11889/j.0253-3219.2018.hjs.41.050201

• LOW ENERGY ACCELERATOR, RAY AND APPLICATIONS • Previous Articles     Next Articles

The application of Lynx-2D in proton spot scanning system commissioning

CHEN Tao1,2, LI Xiufang3, GUO Mengya1,2, KONG Haiyun1, CHEN Zhiling1, ZHAO Minghua1   

  1. 1. Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Jiading Campus, Shanghai 201800, China;
    2. University of Chinese Academy of Sciences, Beijing 100049, China;
    3. Shanghai APTRON Particle Equipment Corporation, Shanghai 201800, China
  • Received:2017-12-14 Revised:2018-01-18 Online:2018-05-10 Published:2018-05-08
  • Supported by:

    Supported by Independent Innovation and Development of High-tech Industry Project of Shanghai (No.Y439022061)

Abstract:

[Background] The rapid measurement of the location of beam spot and its characteristics is a key issue in the commissioning and quality control of proton pencil beam scanning system. [Purpose] This article introduces the IBA commercial Lynx-2D in the spot scanning system of the first domestic proton therapy facility. In the spot scanning system commissioning, Lynx-2D is mainly used to measure the beam spot. [Methods] The analysis tools based on MATLAB is developed because the beam position can not be obtained by Lynx-2D software through the measurement data, the beam spot location is identified in the image with the Grayscale gravity center method and the Gaussian fitting method. [Results] The two methods are satisfied with the measurement. [Conclusion] The measurement efficiency can be improved with these two methods to find the beam position, and it is convenient to handle the data with the software developed by ourselves.

Key words: Proton therapy, Pencil beam scanning, Lynx-2D, Measuring analysis

CLC Number: 

  • TL99