12-20 MeV轫致辐射光子19F(γ, n)18F反应的积分截面测量。

IF 1.6 3区工程技术 Q3 CHEMISTRY, INORGANIC & NUCLEAR

Applied Radiation and Isotopes Pub Date : 2025-01-18 DOI:10.1016/j.apradiso.2025.111673

Shaima Akbar , M.M. Musthafa , C.V. Midhun , Swapna Lilly Cyriac , Resmi K. Bharathan , Silpa Ajaykumar , Antony Joseph , K.C. Jagadeesan

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引用次数: 0

摘要

18F放射性同位素广泛应用于核医学PET成像。医用线性加速器产生高达20兆电子伏特的高通量轫致辐射光束，常用于放射治疗。因此，通过光子诱导通道生产18F将减少运输和处理中的许多复杂性。为此，采用活化技术测量了19F(γ, n)18F反应在轫致辐射端点能量为12、14.6和20 MeV时的积分截面。实验测量的截面用核反应代码TALYS 1.96进行分析。在统计方法的框架内优化了水平密度模型和伽马强度函数模型的参数。

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Integral cross section measurement of the 19F( γ, n)18F reaction for 12-20 MeV bremsstrahlung photons

¹⁸F radioactive isotope is widely used in PET imaging for nuclear medicine. Medical linear accelerators producing high-flux bremsstrahlung beams up to 20 MeV are commonly used in radiation therapy. Hence, the production of ¹⁸F through photon-induced channels will reduce many of the intricacies in transportation and handling. With this objective, the integral cross sections for ¹⁹F(

γ

, n)¹⁸F reaction, for bremsstrahlung endpoint energies of 12, 14.6, and 20 MeV, are measured employing the activation technique. The experimentally measured cross section was analysed using the nuclear reaction code TALYS 1.96. Parameters for level density models and gamma strength function models are optimized within the framework of a statistical approach.

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来源期刊

Applied Radiation and Isotopes 工程技术-核科学技术

CiteScore

3.00

自引率

12.50%

发文量

406

审稿时长

13.5 months

期刊介绍： Applied Radiation and Isotopes provides a high quality medium for the publication of substantial, original and scientific and technological papers on the development and peaceful application of nuclear, radiation and radionuclide techniques in chemistry, physics, biochemistry, biology, medicine, security, engineering and in the earth, planetary and environmental sciences, all including dosimetry. Nuclear techniques are defined in the broadest sense and both experimental and theoretical papers are welcome. They include the development and use of α- and β-particles, X-rays and γ-rays, neutrons and other nuclear particles and radiations from all sources, including radionuclides, synchrotron sources, cyclotrons and reactors and from the natural environment. The journal aims to publish papers with significance to an international audience, containing substantial novelty and scientific impact. The Editors reserve the rights to reject, with or without external review, papers that do not meet these criteria. Papers dealing with radiation processing, i.e., where radiation is used to bring about a biological, chemical or physical change in a material, should be directed to our sister journal Radiation Physics and Chemistry.