10.14489/td.2023.11.pp.030-035

2023, 11 November

DOI: 10.14489/td.2023.11.pp.030-035

Rychkov M. M., Kaplin V. V., Smolyanskiy V. A.
CONTRAST RESOLUTION AND SHARPNESS OF EDGE IMAGES FORMING BY MICROFOCUS BREMSSTRAHLUNG OF A 18 MEV BETATRON AND RADIATIONS OF A 7 MEV BETATRON AND A 450 KEV X-RAY TUBE WITH SUB-MM FOCUSES
(pp. 30-35)

Abstract. Results demonstrating high contrast and good sharpness of magnified (2.44-fold) images of the edges of a 0.4 mm thick steel plate with one sharp edge obtained using microfocus bremsstrahlung of an 18 MeV betatron with a narrow (13 μm) internal tantalum target are presented. These images were compared with the images obtained using SEA-7 small-sized betatron with electron energy of 7 MeV and horizontal focus-size of 0.3 mm and X-ray tube MXR-451HP/11 with electron energy of 450 keV and focal-spot diameter of 0.4 mm. The results obtained show the promise of using a microfocus source based on a betatron for practical applications in high-resolution radiography and tomography, as well as in laboratory experiments, for example, in materials science and X-ray optics.

Keywords: betatron, bremsstrahlung, radiography, contrast, sharpness of images.

+ - About the Authors Click to collapse

M. M. Rychkov, V. V. Kaplin, V. A. Smolyanskiy (National Research Tomsk Polytechnic University, Tomsk, Russia) E-mail: Данный адрес e-mail защищен от спам-ботов, Вам необходимо включить Javascript для его просмотра. , Данный адрес e-mail защищен от спам-ботов, Вам необходимо включить Javascript для его просмотра. , Данный адрес e-mail защищен от спам-ботов, Вам необходимо включить Javascript для его просмотра.

+ - References Click to collapse

1. X-ray tube MXR-451HP/11. Retrieved from https://www.comet-xray.cn/CometXRay/media/Content/pdf_mxr-451hp_11_de_v1.pdf
2. X-ray tube XT H 450/. Retrieved from https://industry.nikon.com/en-aom//wp-content/uploads/sites/20/2022/12/xth-series-en.pdf
3. Rychkov M. M., Kaplin V. V., Sukharnikov K. et al. (2016). Generation of x-ray radiation at the grazing incidence of 18 MeV electrons on a thin Si crystal in a betatron chamber. Journal of Experimental and Theoretical Physics Letters, 103(11), 723–727.
4. Rychkov M. M., Kaplin V. V., Malikov E. I. et al. (2018). Microfocus bremsstrahlung source based on a narrow internal target of a betatron. Journal of Nondestructive Evaluation, 37, 13. DOI: 10.1007/s10921-018-0464-6
5. Website of the IE-NTD Ltd. Retrieved from http://ie-ndt.co.uk/en4625astme2002duplexiqi.html
6. Bavendiek K., Ewert U., Riedo A. et al. (2012). New Measurement Methods of Focal Spot Size and Shape of X-ray Tubes in Digital Radiological Applications in Comparison to Current Standards. Proceedings of the 18th world conference on nondestructive testing. Durban. Retrieved from http://www.ndt.net/article/wcndt2012/papers/346_wcndtfinal00346.pdf
7. Wilkins S. V., Gureyev T. E., Gao D. et al. (1996). Phasecontrast imaging using polychromatic hard x rays. Nature, 384.
8. Yamada H. (1996). Super photon generator using collisions of circulating relativistic electrons and wire targets. Japanese Journal of Applied Physics, 35(2A), 182 – 185. DOI: 10.1143/JJAP.35.L182
9. Pushin V. S., Chahlov V. L. (1997). Method for obtaining a small bremsstrahlung focal spot in a cyclic charged particle accelerator. Ru Patent No. RU 2072643. Russian Federation. Retrieved from http://www.findpatent.ru/patent/207/2072643.html [in Russian language]
10. Rychkov M. M., Kaplin V. V., Smolyanskii V. A. (2019). Detectability of flat microdefects in radiographic images obtained using linear microfocus bremsstrahlung source based on 18 MeV betatron with narrow target inside. Journal of Physics: Conference Series, 1327(012014). DOI:10.1088/1742-6596/1327/1/012014
11. Rychkov M. M., Kaplin V. V., Malikov E. P. et al. (2017). Conjugation testing of the details surfaces using the microfocus radiation of 18 MeV betatron. Kontrol'. Diagnostika, (12), 36 – 40. [in Russian language] DOI: 10.14489/td.2017.12.pp.036-040
12. Rychkov M. M., Kaplin V. V., Smolyanskiy V. A. et al. (2018). Testing of flat inclusions using microfocus bremsstrahlung gamma-rays of 18 MeV betatron. Kontrol'. Diagnostika, (12), 58 – 62. [in Russian language] DOI: 10.14489/td.2018.12.pp.058-062

+ - Purchase digital version of a single article Click to collapse

This article is available in electronic format (PDF).

The cost of a single article is 500 rubles. (including VAT 20%). After you place an order within a few days, you will receive following documents to your specified e-mail: account on payment and receipt to pay in the bank.

After depositing your payment on our bank account we send you file of the article by e-mail.

To order articles please copy the article doi:

10.14489/td.2023.11.pp.030-035

and fill out the form