Skip to main content
SpringerLink
Log in

Electron beam detection in radiotherapy using a capacitor dosimeter equipped with a silicon photodiode

  • Original Article
  • Published:
Medical & Biological Engineering & Computing Aims and scope Submit manuscript

Abstract

In this study, a newly developed capacitor dosimeter was evaluated using electron beams commonly utilized in radiotherapy. The capacitor dosimeter comprised a silicon photodiode, 0.47-μF capacitor, and dedicated terminal (dock). Before electron beam irradiation, the dosimeter was charged using the dock. The doses were measured without using a cable by reducing the charging voltages using the currents from the photodiode during irradiation. A commercially available parallel-plane-type ionization chamber and solid–water phantom were used for dose calibration with an electron energy of 6 MeV. In addition, the depth doses were measured using a solid–water phantom at electron energies of 6, 9, and 12 MeV. The doses were proportional to the discharging voltages, and the maximum dose difference in the calibrated doses measured using a two-point calibration was approximately 5% in the range of 0.25–1.98 Gy. The depth dependencies at energies of 6, 9, and 12 MeV corresponded to those measured using the ionization chamber.

Graphical Abstract

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Fig. 1
Fig. 2
Fig. 3
Fig. 4
Fig. 5
Fig. 6

Similar content being viewed by others

References

  1. Hensley FW, Major G, Edel C, Hauswald H, Bischof M (2014) Technical and dosimetric aspects of the total skin electron beam technique implemented at Heidelberg University Hospital. Rep Pract Oncol Radiother 19:135–143. https://doi.org/10.1016/j.rpor.2013.07.002

    Article  PubMed  Google Scholar 

  2. Desai KR, Pezner RD, Lipsett JA et al (1988) Total skin electron irradiation for mycosis fungoides: relationship between acute toxicities and measured dose at different anatomic sites. Int J Radiat Oncol Biol Phys 15:641–645. https://doi.org/10.1016/0360-3016(88)90306-9

    Article  CAS  PubMed  Google Scholar 

  3. Bourgouin A, Hackel T, Marinelli M, Kranzer R, Schüller A, Kapsch RP (2022) Absorbed-dose-to-water measurement using alanine in ultra-high-pulse-dose-rate electron beams. Phy Med Biol 67:205011. https://doi.org/10.1088/1361-6560/ac950b

    Article  Google Scholar 

  4. Chand S, Mehra R, Chopra V (2021) Recent developments in phosphate materials for their thermoluminescence dosimeter (TLD) applications. Luminescence 36:1808–1817. https://doi.org/10.1002/bio.3960

    Article  CAS  PubMed  Google Scholar 

  5. Ciarmatori A, Nocetti L, Mistretta G, Zambelli G, Costi T (2016) Reducing absorbed dose to eye lenses in head CT examinations: the effect of bismuth shielding. Australas Phys Eng Sci Med 39:583–589. https://doi.org/10.1007/s13246-016-0445-y

    Article  PubMed  Google Scholar 

  6. Lopez-Rendon X, Stratis A, Zhang G et al (2020) Peak skin and eye lens radiation dose from brain perfusion CT: CTDIvol and Monte Carlo based estimations. Eur J Radiol 126:108950. https://doi.org/10.1016/j.ejrad.2020.108950

    Article  CAS  PubMed  Google Scholar 

  7. Anam C, Dewi WK, Masdi M, Haryanto F, Fujibuchi T, Dougherty G (2021) Investigation of eye lens dose estimate based on AAPM Report 293 in Head Computed Tomography. J Biomed Phys Eng 11:563–572. https://doi.org/10.31661/jbpe.v0i0.2104-1304

    Article  PubMed  PubMed Central  Google Scholar 

  8. Marsh RM, Silosky M (2015) Characterization and implementation of OSL dosimeters for use in evaluating the efficacy of organ-based tube current modulation for CT scans of the face and orbits. Med Phys 42:1730–1738. https://doi.org/10.1118/1.4915076

    Article  CAS  PubMed  Google Scholar 

  9. Zhang D, Li X, Gao Y, Xu XG, Liu B (2013) A method to acquire CT organ dose map using OSL dosimeters and ATOM anthropomorphic phantoms. Med Phys 40:081918. https://doi.org/10.1118/1.4816299

    Article  PubMed  PubMed Central  Google Scholar 

  10. Christensen JB, Togno M, Nesteruk KP et al (2021) Al2O3: C optically stimulated luminescence dosimeters (OSLDs) for ultra-high dose rate proton dosimetry. Phys Med Biol 66:085003. https://doi.org/10.1088/1361-6560/abe554

    Article  CAS  Google Scholar 

  11. Han MJ, Yang SW, Bae SI et al (2021) Evaluation of monoxide film-based dosimeters for surface dose detection in electron therapy. PLoS ONE 16:0251441. https://doi.org/10.1371/journal.pone.0251441

    Article  CAS  Google Scholar 

  12. Wang X, Li G, Zhao J, Song Y, Xiao J, Bai S (2019) Verification of eye lens dose in IMRT by MOSFET measurement. Med Dosim 44:107–110. https://doi.org/10.1016/j.meddos.2018.02.015

    Article  PubMed  Google Scholar 

  13. Hsing CH, Oanh LDH, Chao TC et al (2021) MOSFET dose measurements for proton SOBP beam. Phys Med 81:185–190. https://doi.org/10.1016/j.ejmp.2020.12.007

    Article  PubMed  Google Scholar 

  14. Buzurovic I, Showalter TN, Studenski MT et al (2013) Commissioning and implementation of an implantable dosimeter for radiation therapy. J Appl Clin Med Phys 14:234–252. https://doi.org/10.1120/jacmp.v14i2.3989

    Article  PubMed Central  Google Scholar 

  15. Su Z, Zhang L, Ramakrishnan V, Hagan M, Anscher M (2011) Investigations of interference between electromagnetic transponders and wireless MOSFET dosimeters: a phantom study. Med Phys 38:2450–2454. https://doi.org/10.1118/1.3578602

    Article  PubMed  PubMed Central  Google Scholar 

  16. Tendler I, Brůža P, Andreozzi J (2019) Rapid multisite remote surface dosimetry for total skin electron therapy: scintillator target imaging. Int J Radiat Oncol Biol Phys 103:767–774. https://doi.org/10.1016/j.ijrobp.2018.10.030

    Article  PubMed  Google Scholar 

  17. Tendler II, Bruza P, Jermyn M (2020) Technical note: a novel dosimeter improves total skin electron therapy surface dosimetry workflow. J Appl Clin Med Phys 21:158–162. https://doi.org/10.1002/acm2.12880

    Article  PubMed  PubMed Central  Google Scholar 

  18. Yamaguchi S, Sato E (2019) Product development of a condenser dosimeter using a skin-insulated USB-A-substrate with a silicon X-ray diode. Radiol Phys Technol 12:69–75. https://doi.org/10.1007/s12194-018-00493-4

    Article  PubMed  Google Scholar 

  19. Yamaguchi S, Sato E, Ieko Y, Ariga H, Yoshioka K (2020) A capacitor dosimeter with disposable silicon-diode substrates for 4-MV X-ray beam detection in radiation therapy. Physics Open 4:100026. https://doi.org/10.1016/j.physo.2020.100026

    Article  CAS  Google Scholar 

  20. Yamaguchi S, Ieko Y, Ariga H, Yoshioka K (2021) Characterization of an under-development capacitor dosimeter equipped with a silicon X-ray diode. Rev Sci Instrum 92:123101. https://doi.org/10.1063/5.0061061

    Article  CAS  PubMed  Google Scholar 

  21. Alabdoaburas MM, Mege JP, Chavaudra J et al (2015) Experimental assessment of out-of-field dose components in high energy electron beams used in external beam radiotherapy. J Appl Clin Med Phys 16:435–448. https://doi.org/10.1120/jacmp.v16i6.5616

    Article  PubMed  PubMed Central  Google Scholar 

  22. Jeong S, An S, Kwon YC et al (2023) Development of a real-time in vivo dosimetry tool for electron beam therapy using a flexible thin film solar cell coated with scintillator powder. Med Phys 50:557–569. https://doi.org/10.1002/mp.15947

    Article  Google Scholar 

  23. Elsayad K, Moustakis C, Simonsen M et al (2018) In-vivo dosimetric analysis in total skin electron beam therapy. Phys Imaging Radiat Oncol 6:61–65. https://doi.org/10.1016/j.phro.2018.05.002

    Article  PubMed  PubMed Central  Google Scholar 

  24. Baba MH, Singh BK, Wani SQ (2022) In vivo dosimetry for dose verification of total skin electron beam therapy using Gafchromic® EBT3 film dosimetry. J Med Phys 47:362–366. https://doi.org/10.4103/jmp.jmp_72_22

    Article  PubMed  Google Scholar 

  25. Dische S, Saunders MI, Williams C, Hopkins A, Aird E (1993) Precision in reporting the dose given in a course of radiotherapy. Radiother Oncol 29:287–293. https://doi.org/10.1016/0167-8140(93)90146-y

    Article  CAS  PubMed  Google Scholar 

Download references

Acknowledgements

We would like to express our deepest appreciation to Honorary Professor Eiichi Sato. He made a significant contribution to the design principle of the capacitor dosimeter discussed in this study. Without his support, this study would not have materialized. We also thank Nobuaki Mega for his help with the experiments. We would like to thank Editage (www.editage.com) for the English language editing service.

Funding

This study was supported by JSPS KAKENHI (grant number 17K09068).

Author information

Authors and Affiliations

  1. Department of Radiology, School of Medicine, Iwate Medical University, 2-1-1, Idaidori, Yahaba, Iwate, 028-3695, Japan

    Satoshi Yamaguchi & Kunihiro Yoshioka

  2. Department of Radiation Oncology, Iwate Medical University Hospital, Iwate Medical University, 2-1-1, Idaidori, Yahaba, Iwate, 028-3695, Japan

    Yoshiro Ieko & Hisanori Ariga

Authors
  1. Satoshi Yamaguchi
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. Yoshiro Ieko
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. Hisanori Ariga
    View author publications

    You can also search for this author in PubMed Google Scholar

  4. Kunihiro Yoshioka
    View author publications

    You can also search for this author in PubMed Google Scholar

Contributions

Satoshi Yamaguchi: writing—original draft and editing, Yoshiro Ieko: visualization and investigation, Hisanori Ariga: supervision, and Kunihiro Yoshioka: supervision.

Corresponding author

Correspondence to Satoshi Yamaguchi.

Ethics declarations

Competing interests

The authors declare no competing interests.

Additional information

Publisher's note

Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.

Rights and permissions

Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Yamaguchi, S., Ieko, Y., Ariga, H. et al. Electron beam detection in radiotherapy using a capacitor dosimeter equipped with a silicon photodiode. Med Biol Eng Comput 61, 2197–2205 (2023). https://doi.org/10.1007/s11517-023-02870-7

Download citation

  • Received:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s11517-023-02870-7

Keywords

Search

Navigation