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Félix-Bautista R, Hamad Y, Yáñez-González T, Ochoa-Parra P, Granja C, Martišíková M, Mairani A, Gehrke T. Towards precise LET measurements based on energy deposition of therapeutic ions in Timepix3 detectors. Phys Med Biol 2024; 69:125030. [PMID: 38815613 DOI: 10.1088/1361-6560/ad5267] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2023] [Accepted: 05/30/2024] [Indexed: 06/01/2024]
Abstract
Objective.There is an increasing interest in calculating and measuring linear energy transfer (LET) spectra in particle therapy in order to assess their impact in biological terms. As such, the accuracy of the particle fluence energy spectra becomes paramount. This study focuses on quantifying energy depositions of distinct proton, helium, carbon, and oxygen ion beams using a silicon pixel detector developed at CERN to determine LET spectra in silicon.Approach.While detection systems have been investigated in this pursuit, the scarcity of detectors capable of providing per-ion data with high spatial and temporal resolution remains an issue. This gap is where silicon pixel detector technology steps in, enabling online tracking of single-ion energy deposition. The used detector consisted of a 300µm thick silicon sensor operated in partial depletion.Main results.During post-processing, artifacts in the acquired signals were identified and methods for their corrections were developed. Subsequently, a correlation between measured and Monte Carlo-based simulated energy deposition distributions was performed, relying on a two-step recalibration approach based on linear and saturating exponential models. Despite the observed saturation effects, deviations were confined below 7% across the entire investigated range of track-averaged LET values in silicon from 0.77 keVµm-1to 93.16 keVµm-1.Significance.Simulated and measured mean energy depositions were found to be aligned within 7%, after applying artifact corrections. This extends the range of accessible LET spectra in silicon to clinically relevant values and validates the accuracy and reliability of the measurements. These findings pave the way towards LET-based dosimetry through an approach to translate these measurements to LET spectra in water. This will be addressed in a future study, extending functionality of treatment planning systems into clinical routine, with the potential of providing ion-beam therapy of utmost precision to cancer patients.
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Affiliation(s)
- Renato Félix-Bautista
- Heidelberg Institute for Radiation Oncology (HIRO), National Center for Research in Radiation Oncology (NCRO), Im Neuenheimer Feld 280, 69120 Heidelberg, Germany
- Department of Medical Physics in Radiation Oncology, German Cancer Research Center (DKFZ), Neuenheimer Feld 280, 69120 Heidelberg, Germany
| | - Yasmin Hamad
- Heidelberg Institute for Radiation Oncology (HIRO), National Center for Research in Radiation Oncology (NCRO), Im Neuenheimer Feld 280, 69120 Heidelberg, Germany
- Faculty of Physics and Astronomy, Heidelberg University, Im Neuenheimer Feld 226, 69120 Heidelberg, Germany
- Heidelberg Ion-Beam Therapy Center (HIT), Department of Radiation Oncology, Heidelberg University Hospital, Im Neuenheimer Feld 450, 69120 Heidelberg, Germany
- Clinical Cooperation Unit Translational Radiation Oncology, National Center for Tumor Diseases (NCT), Heidelberg University Hospital (UKHD) and German Cancer Research Center (DKFZ), 69120 Heidelberg, Germany
| | - Tomás Yáñez-González
- Department of Medical Physics in Radiation Oncology, German Cancer Research Center (DKFZ), Neuenheimer Feld 280, 69120 Heidelberg, Germany
- Currently at Faculty of Mechanical Engineering, Leibniz University of Hannover
| | - Pamela Ochoa-Parra
- Heidelberg Institute for Radiation Oncology (HIRO), National Center for Research in Radiation Oncology (NCRO), Im Neuenheimer Feld 280, 69120 Heidelberg, Germany
- Department of Medical Physics in Radiation Oncology, German Cancer Research Center (DKFZ), Neuenheimer Feld 280, 69120 Heidelberg, Germany
- Faculty of Physics and Astronomy, Heidelberg University, Im Neuenheimer Feld 226, 69120 Heidelberg, Germany
| | - Carlos Granja
- ADVACAM, Department of Research and Development, U Pergamenky 12, 17000 Prague, Czech Republic
| | - Mária Martišíková
- Heidelberg Institute for Radiation Oncology (HIRO), National Center for Research in Radiation Oncology (NCRO), Im Neuenheimer Feld 280, 69120 Heidelberg, Germany
- Department of Medical Physics in Radiation Oncology, German Cancer Research Center (DKFZ), Neuenheimer Feld 280, 69120 Heidelberg, Germany
| | - Andrea Mairani
- Heidelberg Institute for Radiation Oncology (HIRO), National Center for Research in Radiation Oncology (NCRO), Im Neuenheimer Feld 280, 69120 Heidelberg, Germany
- Heidelberg Ion-Beam Therapy Center (HIT), Department of Radiation Oncology, Heidelberg University Hospital, Im Neuenheimer Feld 450, 69120 Heidelberg, Germany
| | - Tim Gehrke
- Heidelberg Institute for Radiation Oncology (HIRO), National Center for Research in Radiation Oncology (NCRO), Im Neuenheimer Feld 280, 69120 Heidelberg, Germany
- Department of Medical Physics in Radiation Oncology, German Cancer Research Center (DKFZ), Neuenheimer Feld 280, 69120 Heidelberg, Germany
- Department of Radiation Oncology, Heidelberg University Hospital, Im Neuenheimer Feld 450, 69120 Heidelberg, Germany
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Yuan Z, Zhuo W, Yang S, Li Z, Zhao J, Chen B. Comparison of linear energy transfer measurement for therapeutic carbon beam using CR-39 and TLD. JOURNAL OF RADIOLOGICAL PROTECTION : OFFICIAL JOURNAL OF THE SOCIETY FOR RADIOLOGICAL PROTECTION 2024; 44:021522. [PMID: 38834051 DOI: 10.1088/1361-6498/ad53d9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/15/2024] [Accepted: 06/04/2024] [Indexed: 06/06/2024]
Abstract
The measurement of linear energy transfer (LET) is crucial for the evaluation of the radiation effect in heavy ion therapy. As two detectors which are convenient to implant into the phantom, the performance of CR-39 and thermoluminescence detector (TLD) for LET measurement was compared by experiment and simulation in this study. The results confirmed the applicability of both detectors for LET measurements, but also revealed that the CR-39 detector would lead to potential overestimation of dose-averaged LET compared with the simulation by PHITS, while the TLD would have a large uncertainty measuring ions with LET larger than 20 keVμm-1. The results of this study were expected to improve the detection method of LET for therapeutic carbon beam and would finally be benefit to the quality assurance of heavy ion radiotherapy.
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Affiliation(s)
- Zhou Yuan
- Institute of Radiation Medicine, Fudan University, 2094 Xietu Road, Shanghai 200032, People's Republic of China
| | - Weihai Zhuo
- Institute of Radiation Medicine, Fudan University, 2094 Xietu Road, Shanghai 200032, People's Republic of China
| | - Shiyan Yang
- Institute of Modern Physics, Fudan University, 220 Handan Road, Shanghai 200433, People's Republic of China
- Mevion Medical Equipment Co., Ltd, 135 Yuanfeng Road, Kunshan 215300, People's Republic of China
| | - Zhiling Li
- Institute of Radiation Medicine, Fudan University, 2094 Xietu Road, Shanghai 200032, People's Republic of China
| | - Jingfang Zhao
- Department of Medical Physics, Shanghai Proton and Heavy Ion Center, Fudan University Cancer Hospital, 4365 Kangxin Road, Shanghai 201315, People's Republic of China
- Shanghai Engineering Research Center of Proton and Heavy Ion Radiation Therapy, 4365 Kangxin Road, Shanghai 201315, People's Republic of China
| | - Bo Chen
- Institute of Radiation Medicine, Fudan University, 2094 Xietu Road, Shanghai 200032, People's Republic of China
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Chailapakul P, Maloney O, Hirakawa H, Fujimori A, Kitamura H, Kato TA. The contribution of high-LET track to DNA damage formation and cell death for Monoenergy and SOBP carbon ion irradiation. Biochem Biophys Res Commun 2024; 696:149500. [PMID: 38219488 DOI: 10.1016/j.bbrc.2024.149500] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2023] [Accepted: 01/08/2024] [Indexed: 01/16/2024]
Abstract
Carbon ion radiotherapy (CIRT) is a heavy ion charge particle therapy with 29 years of prominent use. Despite advantages like high relative biological effectiveness (RBE), improved quality of life, and reduced treatment time, challenges persist, especially regarding heavy nuclear fragments. Our research addresses these challenges in horizontal irradiation, aiming to comprehend Monoenergetic and Spread-Out Bragg peak (SOBP) carbon ion beam trajectories using cell survival analysis and visualizing biological effects through DNA damage (γ-H2AX). This reveals repair-related protein foci near the Bragg peak. CR-39, a plastic nuclear track detector, was explored to understand high-linear energy transfer (LET) tracks and radiation quality near the Bragg peak. Findings unveil high-LET DNA damage signatures through aligned γ-H2AX foci, correlating with LET values in SOBP. CR-39 visualized high-LET particle exposure, indicating comet-type etch-pits at the Bragg peak and suggesting carbon ion fragmentation. Unexpectedly, dot-type etch-pits in irradiated and post-Bragg peak regions indicated high-LET neutron production. This investigation highlights the intricate interplay of carbon ion beams, stressing the importance of understanding LET variations, DNA damage patterns, and undesired secondary exposure.
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Affiliation(s)
- Piyawan Chailapakul
- Department of Environmental & Radiological Health Sciences, Colorado State University, USA
| | - Olivia Maloney
- Department of Environmental & Radiological Health Sciences, Colorado State University, USA
| | - Hirokazu Hirakawa
- Institute for Quantum Science, National Institutes for Quantum Science and Technology, Japan
| | - Akira Fujimori
- Institute for Quantum Science, National Institutes for Quantum Science and Technology, Japan
| | - Hisashi Kitamura
- Institute for Radiological Science, National Institutes for Quantum Science and Technology, Japan
| | - Takamitsu A Kato
- Department of Environmental & Radiological Health Sciences, Colorado State University, USA.
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de Freitas Nascimento L, Leblans P, van der Heyden B, Akselrod M, Goossens J, Correa Rocha LE, Vaniqui A, Verellen D. Characterisation and Quenching Correction for an Al 2O 3:C Optical Fibre Real Time System in Therapeutic Proton, Helium, and Carbon-Charged Beams. SENSORS (BASEL, SWITZERLAND) 2022; 22:s22239178. [PMID: 36501879 DOI: 10.1016/j.sna.2022.113781] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/17/2022] [Revised: 11/21/2022] [Accepted: 11/23/2022] [Indexed: 05/24/2023]
Abstract
Real time radioluminescence fibre-based detectors were investigated for application in proton, helium, and carbon therapy dosimetry. The Al2O3:C probes are made of one single crystal (1 mm) and two droplets of micro powder in two sizes (38 μm and 4 μm) mixed with a water-equivalent binder. The fibres were irradiated behind different thicknesses of solid slabs, and the Bragg curves presented a quenching effect attributed to the nonlinear response of the radioluminescence (RL) signal as a function of linear energy transfer (LET). Experimental data and Monte Carlo simulations were utilised to acquire a quenching correction method, adapted from Birks' formulation, to restore the linear dose-response for particle therapy beams. The method for quenching correction was applied and yielded the best results for the '4 μm' optical fibre probe, with an agreement at the Bragg peak of 1.4% (160 MeV), and 1.5% (230 MeV) for proton-charged particles; 2.4% (150 MeV/u) for helium-charged particles and of 4.8% (290 MeV/u) and 2.9% (400 MeV/u) for the carbon-charged particles. The most substantial deviations for the '4 μm' optical fibre probe were found at the falloff regions, with ~3% (protons), ~5% (helium) and 6% (carbon).
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Affiliation(s)
| | | | | | - Mark Akselrod
- Landauer, Stillwater Crystal Growth Division, Stillwater, OK 74074, USA
| | - Jo Goossens
- Faculty of Medicine and Health Sciences, University of Antwerp, 2610 Antwerp, Belgium
- Iridium Netwerk, University of Antwerp, 2610 Antwerp, Belgium
| | - Luis Enrique Correa Rocha
- Department of Economics, Ghent University, 9000 Ghent, Belgium
- Department of Physics and Astronomy, Ghent University, 9000 Ghent, Belgium
| | - Ana Vaniqui
- Belgian Nuclear Research Centre, SCK CEN, 2400 Mol, Belgium
| | - Dirk Verellen
- Faculty of Medicine and Health Sciences, University of Antwerp, 2610 Antwerp, Belgium
- Iridium Netwerk, University of Antwerp, 2610 Antwerp, Belgium
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Measurements of linear energy transfer (LET) distributions by CR-39 for a therapeutic carbon ion beam with a new 2D ripple filter. Radiat Phys Chem Oxf Engl 1993 2022. [DOI: 10.1016/j.radphyschem.2022.110193] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Yang S, Zhao J, Zhuo W, Shen H, Chen B. Changes of the linear energy transfer (LET) and beam width of therapeutic carbon ion beam in density heterogeneous phantoms. JOURNAL OF RADIOLOGICAL PROTECTION : OFFICIAL JOURNAL OF THE SOCIETY FOR RADIOLOGICAL PROTECTION 2022; 42:021518. [PMID: 35320782 DOI: 10.1088/1361-6498/ac6044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/05/2022] [Accepted: 03/23/2022] [Indexed: 06/14/2023]
Abstract
This work aims to investigate the changes in the linear energy transfer (LET) spectra distribution and the beam spot width of a therapeutic carbon ion beam in density heterogeneous phantoms. Three different heterogeneous phantoms were fabricated using a combination of solid water, lung, and bone tissue slabs and irradiated by a single energy carbon beam (276.5 MeV u-1). CR-39 detectors were used for experimental measurements and the Monte Carlo toolkit Geant4 was employed for theoretical simulations. The results demonstrated that the measured LET spectra agree well with the simulation results. The lung and bone tissues displayed no obvious effect on the spectral distribution of LET. The dose-average LET was invariant and showed no obvious difference in the different materials, while the track-average LET increased in the lung and decreased in the bone materials. Similarly, the beam spot size increased in the lung, and decreased in the bone materials. Additionally, the fluence of the secondary fragments varied in different tissues. These findings are expected to provide cross-validation data for the quality assurance of carbon ion therapy and to be beneficial for validating the base data in treatment planning systems.
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Affiliation(s)
- Shiyan Yang
- Institute of Modern Physics, Fudan University, Shanghai, People's Republic of China
- Key Laboratory of Nuclear Physics and Ion-beam Application (MOE), Fudan University, Shanghai, People's Republic of China
| | - Jingfang Zhao
- Department of Medical Physics, Shanghai Proton and Heavy Ion Center, Fudan University Cancer Hospital, Shanghai, People's Republic of China
- Shanghai Engineering Research Center of Proton and Heavy Ion Radiation Therapy, Shanghai, People's Republic of China
| | - Weihai Zhuo
- Key Laboratory of Nuclear Physics and Ion-beam Application (MOE), Fudan University, Shanghai, People's Republic of China
- Institute of Radiation Medicine, Fudan University, Shanghai, People's Republic of China
| | - Hao Shen
- Institute of Modern Physics, Fudan University, Shanghai, People's Republic of China
- Key Laboratory of Nuclear Physics and Ion-beam Application (MOE), Fudan University, Shanghai, People's Republic of China
| | - Bo Chen
- Institute of Radiation Medicine, Fudan University, Shanghai, People's Republic of China
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He Y, Li Z, Zhuo W, Chen B. Measurement of three-dimensional track profiles on CR-39s based on the photometric stereo method. THE REVIEW OF SCIENTIFIC INSTRUMENTS 2022; 93:033303. [PMID: 35364988 DOI: 10.1063/5.0062398] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/05/2021] [Accepted: 02/23/2022] [Indexed: 06/14/2023]
Abstract
To obtain more information about incident particles, a new method for measuring three-dimensional track profiles formed on CR-39s based on the photometric stereo method was developed. A new optical microscope system with 16 lasers and a complementary metal-oxide-semiconductor camera was built to automatically capture the reflecting track images illuminated by the laser beams from different angles, and the track profiles were three-dimensionally reconstructed using a self-developed software. To verify the reconstruction results of the track profiles, both the openings and depth were measured with an atomic force microscope. The results showed that the relative deviations between the two methods of the openings were about 5.5% and the deviations of the depth were about 8.0%. At present, the reconstruction speed of a three-dimensional track profile is a factor of 400 greater than that of the atomic force microscope. The new method shows great potential for rapid reconstruction of numerous track morphologies. It is expected to be helpful for further studies on the energy and angle discrimination of incident particles in the field of nuclear measurements.
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Affiliation(s)
- Yuling He
- Institute of Radiation Medicine, Fudan University, No. 2094, Xietu Rd., Shanghai 200032, China
| | - Zhiling Li
- Institute of Radiation Medicine, Fudan University, No. 2094, Xietu Rd., Shanghai 200032, China
| | - Weihai Zhuo
- Institute of Radiation Medicine, Fudan University, No. 2094, Xietu Rd., Shanghai 200032, China
| | - Bo Chen
- Institute of Radiation Medicine, Fudan University, No. 2094, Xietu Rd., Shanghai 200032, China
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Quantitative estimation of track segment yields of water radiolysis species under heavy ions around Bragg peak energies using Geant4-DNA. Sci Rep 2021; 11:1524. [PMID: 33452450 PMCID: PMC7810756 DOI: 10.1038/s41598-021-81215-6] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2020] [Accepted: 01/05/2021] [Indexed: 11/08/2022] Open
Abstract
We evaluate the track segment yield G' of typical water radiolysis products (eaq-, ·OH and H2O2) under heavy ions (He, C and Fe ions) using a Monte Carlo simulation code in the Geant4-DNA. Furthermore, we reproduce experimental results of ·OH of He and C ions around the Bragg peak energies (< 6 MeV/u). In the relatively high energy region (e.g., > 10 MeV/u), the simulation results using Geant4-DNA have agreed with experimental results. However, the G-values of water radiolysis species have not been properly evaluated around the Bragg peak energies, at which high ionizing density can be expected. Around the Bragg peak energy, dense continuous secondary products are generated, so that it is necessary to simulate the radical-radical reaction more accurately. To do so, we added the role of secondary products formed by irradiation. Consequently, our simulation results are in good agreement with experimental results and previous simulations not only in the high-energy region but also around the Bragg peak. Several future issues are also discussed regarding the roles of fragmentation and multi-ionization to realize more realistic simulations.
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Kusumoto T, Okada S, Kurashige H, Kobayashi K, Fromm M, Raffy Q, Ludwig N, Kanasaki M, Oda K, Honda Y, Tojo S, Groetz JE, Ogawara R, Kodaira S, Barillon R, Yamauchi T. Evidence for a critical dose above which damage to carbonate ester bonds in PADC appear after gamma ray and ultra soft X-ray exposures. Radiat Phys Chem Oxf Engl 1993 2020. [DOI: 10.1016/j.radphyschem.2019.108628] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Hirano Y, Kodaira S, Souda H, Osaki K, Torikoshi M. Estimations of relative biological effectiveness of secondary fragments in carbon ion irradiation of water using CR‐39 plastic detector and microdosimetric kinetic model. Med Phys 2019; 47:781-789. [DOI: 10.1002/mp.13916] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2019] [Revised: 09/19/2019] [Accepted: 11/04/2019] [Indexed: 02/02/2023] Open
Affiliation(s)
- Yoshiyuki Hirano
- Heavy Ion Medical Center Gunma University 3‐39‐22 Showa‐Machi Maebashi Gunma371‐8511Japan
| | - Satoshi Kodaira
- National Institute of Radiological SciencesNational Institutes for Quantum and Radiological Science and Technology 4-9-1 Anagawa Inage‐ku Chiba263‐8555Japan
| | - Hikaru Souda
- Heavy Ion Medical Center Gunma University 3‐39‐22 Showa‐Machi Maebashi Gunma371‐8511Japan
| | - Kohei Osaki
- Heavy Ion Medical Center Gunma University 3‐39‐22 Showa‐Machi Maebashi Gunma371‐8511Japan
| | - Masami Torikoshi
- Heavy Ion Medical Center Gunma University 3‐39‐22 Showa‐Machi Maebashi Gunma371‐8511Japan
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