Dosimetry for low-energy electron beam applications at Fraunhofer FEP

• Autorzy: Teichmann Tobias , Schaap Lotte Ligaya , Poremba Andre , Dincklage Lars , Blüthner Ralf , Sommer Marian , Henniger Jürgen , Schopf Simone , König Ulla , Mattausch Gösta

Identyfikatory

DOI

10.2478/nuka-2024-0011

• Konferencja: International Conference on Development and Applications of Nuclear Technologies NUTECH 2023 (22-24 September 2023 ; Krakow, Poland)
• Języki publikacji: EN

Abstrakty

EN

Accelerating electrons to achieve chemical and biological effects is a well-established competence of Fraunhofer FEP. Today, there is a large variety of low-energy electron beam applications with a broad range of absorbed doses, e.g. modification of plastics, plasma-chemical syntheses, pollutant removal in wastewaters and exhaust gases, sterilization of medical products, disinfection of seeds, biocompatible functionalization of implants and stimulation of biotechnological processes. This calls for reliable, sensitive, and flexible methods for dosimetry. Radiochromic fi lms are suitable tools to measure electron dose distributions for the characterization and quality control of Fraunhofer FEP’s irradiation facilities. Risø B3 radiochromic film from DTU Health Tech, the dosimeter of choice at FEP, reliably detects doses in the range of 10–100 kGy. However, with new upcoming applications, doses in the single-digit kGy range and even lower come to the fore. Hence, the palette of dosimeters at FEP must be extended. Gafchromic’s HD-V2 fi lm is a welcome complement and widens the accessible dose range down to 10 Gy. Using a UV-VIS spectrophotometer for read-out of the fi lms and custom analysis algorithms further increase the sensitivity of the dosimetric setup. Additionally, dosimeters based on the optically stimulated luminescence (OSL) of beryllium oxide offer a wide dose range and high sensitivity. They were used to measure doses induced by secondary X-ray components to gain more information about a specific radiation field. The work gives an overview of the dosimetric toolbox at Fraunhofer FEP and the efforts to implement new methods of detection for low-dose applications and X-ray dosimetry.

Słowa kluczowe

EN

dosimetry; low-energy electrons; optically stimulated luminescence; radiochromic film

• Wydawca: Institute of Nuclear Chemistry and Technology
• Czasopismo: Nukleonika
• Rocznik: 2024
• Tom: Vol. 69, No. 2
• Strony: 81--85
• Opis fizyczny: Bibliogr. 9 poz., rys.

Twórcy

autor

Teichmann Tobias

• Fraunhofer Institute for Electron Beam and Plasma Technology FEP, Dresden, Germany

• https://orcid.org/0000-0002-0331-3083

autor

Schaap Lotte Ligaya

• Fraunhofer Institute for Electron Beam and Plasma Technology FEP, Dresden, Germany

• https://orcid.org/0009-0001-4059-3889

autor

Poremba Andre

• Fraunhofer Institute for Electron Beam and Plasma Technology FEP, Dresden, Germany

autor

Dincklage Lars

• Fraunhofer Institute for Electron Beam and Plasma Technology FEP, Dresden, Germany

• https://orcid.org/0009-0000-8667-7263

autor

Blüthner Ralf

• Fraunhofer Institute for Electron Beam and Plasma Technology FEP, Dresden, Germany

autor

Sommer Marian

• Strahlenschutz-Akademie Dresden SAD GWT-TUD GmbH, Dresden, Germany

• https://orcid.org/0000-0002-6653-7295

autor

Henniger Jürgen

• Strahlenschutz-Akademie Dresden SAD GWT-TUD GmbH, Dresden, Germany

autor

Schopf Simone

• Fraunhofer Institute for Electron Beam and Plasma Technology FEP, Dresden, Germany

• https://orcid.org/0000-0002-8462-7147

autor

König Ulla

• Fraunhofer Institute for Electron Beam and Plasma Technology FEP, Dresden, Germany

• https://orcid.org/0000-0002-2086-1479

autor

Mattausch Gösta

• Fraunhofer Institute for Electron Beam and Plasma Technology FEP, Dresden, Germany

Bibliografia

• 1. Teichmann, T., Dincklage, L., Schaap, L. L., Schreuder, D., Blüthner, R., Winckler, F., Schopf, S., König, U., Zimmermann, B., & Mattausch, G. (2023). Advances in electron beam technology for environmental and biotechnological applications at Fraunhofer FEP. J. Phys.-Conf. Ser., 2443, 012017. DOI: 10.1088/1742-6596/2443/1/012017.
• 2. Miller, A., Hargittai, P., & Kovacs, A. (2000). A PC based thin film dosimeter system. Radiat. Phys. Chem., 57, 679–685. DOI: 10.1016/S0969-806X(99)00507-1.
• 3. Miller, A., & Helt-Hansen, J. (2006). Assessment of dose measurement uncertainty using RisøScan. Radiat. Phys. Chem., 75, 1101–1106. DOI: 10.1016/j.radphyschem.2006.01.012.
• 4. Ashland Inc. (2021). Datasheet Gafchromic™ HD-V2 films, PHA21-008. Retrieved September 13, 2023, from https://www.ashland.com/industries/medical/gafchromic-dosimetry-films/hdv2.
• 5. Jahn, A., Sommer, M., Ullrich, W., Wickert, M., & Henniger, J. (2013). The BeOmax system – dosimetry using OSL of BeO for several applications. Radiat. Meas., 56, 324–327. DOI: 10.1016/j.radmeas.2013.01.069.
• 6. Sharpe, P., & Miller, A. (2009). Guidelines for the calibration of routine dosimetry systems for use in radiation processing . National Physical Laboratory, Teddington, UK. (NPL Report CIRM 29).
• 7. Manohara, S. R., Hanagodimath, S. M., & Gerward, L. (2008). Studies on effective atomic number, electron density and kerma for some fatty acids and carbohydrates. Phys. Med. Biol., 53(20), N377. DOI:10.1088/0031-9155/53/20/N01.
• 8. Jahn, M., Röder, O., & Tigges, J. (2005). Electron treatment of cereal crop seeds – overview and appraisal of field trials (English ed., pp. 66–128). Federal Biological Research Centre for Agriculture and Forestry. (Report no. 399).
• 9. Abe, Y., Morace, A., Arikawa, Y., Mirfayzi, S. R., Golovin, D., Law, K. F. F., Fujioka, S., Yogo, A., & Nakai, M. (2021). Dosimetric calibration of GafChromic HD-V2, MD-V3, and EBT3 films for dose ranges up to 100 kGy. Rev. Sci. Instrum., 92(6), 063301. DOI: 10.1063/5.0043628.

Uwagi

Opracowanie rekordu ze środków MNiSW, umowa nr POPUL/SP/0154/2024/02 w ramach programu "Społeczna odpowiedzialność nauki II" - moduł: Popularyzacja nauki (2025).