Journal ArticleDOI
Positron camera for range verification of heavy-ion radiotherapy
Yasushi Iseki,Yasushi Iseki,Hideyuki Mizuno,Yasuyuki Futami,Takehiro Tomitani,Tatsuaki Kanai,Tatsuaki Kanai,Mitsutaka Kanazawa,Atsushi Kitagawa,Takeshi Murakami,Teiji Nishio,M. Suda,E. Urakabe,Akira Yunoki,Hirotaka Sakai +14 more
TLDR
In this article, a positron camera, consisting of a pair of Anger-type scintillation detectors, was developed to verify ranges by using positron emitter beams, and a linear response of a 0.3 mm standard deviation within a ±200 mm region were obtained.Abstract:
A positron camera, consisting of a pair of Anger-type scintillation detectors, has been developed to verify ranges by using positron emitter beams. Each detector head is equipped with a NaI(Tl) crystal (diameter: 600 mm , thickness: 30 mm ) for high detection efficiency. To get a low counting rate for this application, the electric circuit was designed for flexibility in measurement and analysis by software. The energy and position were calibrated for high measurement accuracy. A spatial resolution of 8.6 mm in FWHM within a ±50 mm region (field of view) and a linear response of a 0.3 mm standard deviation within a ±200 mm region were obtained. The camera was designed so as to measure the ranges within an accuracy of 1 mm under a dose limitation (about 100 mGyE ) to reduce the safety margin for the irradiation field, and it met the required characteristics.read more
Citations
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Journal ArticleDOI
In vivo proton range verification: a review
TL;DR: In this review, state-of-the art in vivo proton range verification methods currently being proposed, developed or clinically implemented are described and compared.
Journal ArticleDOI
Development of a small prototype for a proof-of-concept of OpenPET imaging.
Taiga Yamaya,Eiji Yoshida,Taku Inaniwa,Shinji Sato,Yasunori Nakajima,Hidekatsu Wakizaka,Daisuke Kokuryo,Atsushi B. Tsuji,Takayuki Mitsuhashi,Takayuki Mitsuhashi,H. Kawai,Hideaki Tashima,Fumihiko Nishikido,Naoko Inadama,Hideo Murayama,Hideaki Haneishi,Mikio Suga,Shoko Kinouchi,Shoko Kinouchi +18 more
TL;DR: The first small prototype to show a proof-of-concept of OpenPET imaging was developed and it was confirmed that the tumor in the gap was clearly visualized.
Journal ArticleDOI
Monitoring proton radiation therapy with in-room PET imaging
Xuping Zhu,Samuel España,Samuel España,J Daartz,J Daartz,Norbert J. Liebsch,Jinsong Ouyang,Harald Paganetti,Thomas Bortfeld,Georges El Fakhri +9 more
TL;DR: In-room PET is a promising low cost, high sensitivity modality for the in vivo verification of proton therapy, and better accuracy in Monte Carlo predictions, especially for biological decay modeling, is necessary.
Journal ArticleDOI
Range Verification Methods in Particle Therapy: Underlying Physics and Monte Carlo Modeling
TL;DR: A comprehensive overview of various aspects in modeling the physics processes for range verification with secondary particles produced in proton, carbon, and heavier ion irradiation, and some widely used MC codes in hadron therapy are described.
Journal ArticleDOI
A single-ring OpenPET enabling PET imaging during radiotherapy
Hideaki Tashima,Taiga Yamaya,Eiji Yoshida,Shoko Kinouchi,Shoko Kinouchi,Mitsuo Watanabe,Eiichi Tanaka +6 more
TL;DR: A second-generation OpenPET geometry, single-ring OpenPET, is proposed, which can provide an accessible and observable open space with higher sensitivity and a reduced number of detectors than the earlier one and results indicate that the depth-of-interaction detector can provide uniform resolution even when the detectors are arranged in an ellipsoidal ring.
References
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Biophysical characteristics of HIMAC clinical irradiation system for heavy-ion radiation therapy.
Tatsuaki Kanai,Masahiro Endo,Shinichi Minohara,Nobuyuki Miyahara,Hiroko Koyama-Ito,Hiromi Tomura,Naruhiro Matsufuji,Yasuyuki Futami,Akifumi Fukumura,Takeshi Hiraoka,Yoshiya Furusawa,Koichi Ando,Masao Suzuki,Fuminori Soga,Kiyomitsu Kawachi +14 more
TL;DR: A carbon beam of 80 keV/microm in the spread-out Bragg peak was found to be equivalent in biological responses to the neutron beam that is produced at cyclotron facility in National Institute Radiological Sciences (NIRS) by bombarding 30-MeV deuteron beam on beryllium target.
Journal ArticleDOI
Heavy ion synchrotron for medical use —HIMAC project at NIRS-Japan—
Y. Hirao,H. Ogawa,Satoru Yamada,Yoichi Sato,T. Yamada,Kenji Sato,A. Itano,Mitsutaka Kanazawa,Koji Noda,Kiyomitsu Kawachi,Masahiro Endo,Tatsuaki Kanai,T. Kohno,M. Sudou,Shinichi Minohara,Atsushi Kitagawa,Fuminori Soga,Eiichi Takada,Satoshi Watanabe,K. Endo,M. Kumada,S. Matsumoto +21 more
TL;DR: A heavy ion synchrotron complex for medical use at Chiba, Japan is described in this article, where the present status of the project is described. But the present system is not yet complete.
Journal ArticleDOI
The investigation of different cameras for in-beam PET imaging
Jörg Pawelke,L. Byars,Wolfgang Enghardt,W D Fromm,H Geissel,B.G. Hasch,K. Lauckner,P Manfraß,Dieter Schardt,Manfred Sobiella +9 more
TL;DR: A limited angle tomograph that is designed for clinical use in experimental heavy-ion therapy at GSI Darmstadt has been built and is predicted to perform the measurement of the end point of a beta(+)-emitting ion beam for the verification of a treatment plan with a precision better than 1 mm.
Journal ArticleDOI
Spot Scanning Using Radioactive 11C Beams for Heavy-Ion Radiotherapy
Eriko Urakabe,Tatsuaki Kanai,Mitsutaka Kanazawa,Atsushi Kitagawa,Koji Noda,Takehiro Tomitani,M. Suda,Yasushi Iseki,Katsushi Hanawa,Kohsuke Sato,Munefumi Shimbo,Hideyuki Mizuno,Yoichi Hirata,Yasuyuki Futami,Yoshihisa Iwashita,Akira Noda +15 more
TL;DR: A scheme for spot scanning using 11C beams has been developed in order to form and verify a three-dimensionally conformal irradiation field for cancer radiotherapy and by selecting the momentum spread of a 11C beam, it could considerably decrease the distal falloff of the irradiated field, thus conserving the beam quality.
Journal ArticleDOI
Performance of a position-sensitive scintillation detector.
Joel S. Karp,Gerd Muehllehner +1 more
TL;DR: The spatial resolution of a NaI(T1), 25 mm thick bar detector designed for use in positron emission tomography has been studied and the effect of sharpening the distribution by modifying the front crystal surface with grooves cut perpendicular to the long axis of the crystal and by using non-linear preamplifiers is studied.
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