An ion-optical design study of a carbon-ion rotating gantry with a superconducting final bending magnet

Bokor, Jozef; Pavlovič, Márius

doi:10.1016/j.nima.2015.12.058

Cited by 6 publications

(6 citation statements)

References 25 publications

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“…The first one at Heidelberg Ion Therapy (HIT), Germany is 25-m long, 14 m in diameter and weighs 660 tonnes. The recently installed rotating gantry at NIRS, HIMAC facility, Japan in 2015 uses superconducting magnets instead of normal magnets 27 , and this has helped reduce both the size (13 m long and 11 m diameter) and weight. The superconducting magnets use compact cryogenics technology based on the refrigerator-directly-cooling method; this technology eliminates the need for liquid helium to cool the superconducting coils below 4 K, and makes the rotating gantry safe and easy to handle in ordinary medical facilities.…”

Section: Heavy Ion Beam Therapymentioning

confidence: 99%

Evolution and Progress in the Application of Radiation in Cancer Diagnosis and Therapy

Aggarwal¹

2017

Current Science

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Cancer is a ubiquitous health problem globally caused by poor food quality, environmental pollution, genetic factors, etc. Despite the manifold presumptive theories put forth for its causation, there is an extreme paucity of knowledge as regards the actual etiology of cancer, as well as any preventive or prophylactic therapy. The treatment options available include surgery, chemotherapy and radiation therapy (both internal and external). There have been technical and technological advancements in the fields of 'cancer surgery' and 'cancer chemotherapy', and radiotherapy in oncology is not too far behind. X-rays (from linear accelerators LINACs) and gamma rays (e.g. in Bhabhatron) are commonly used for radiation treatment of various types of cancers. New developments include proton beam therapy (PBT) and heavy ion beam therapy (IBT) (e.g. C +6 ion). These new developments of PBT and IBT offer significant advantages to treat paediatric patients, and to radiate deep-seated and radioresistant tumours. This article gives an overview of the various radiation therapies used worldwide, cost comparison of setting up these facilities, operational and treatment costs and advantages, limitations as well as the present status of different charged particle therapy facilities available worldwide.Keywords: Accelerators, cancer, diagnosis, oncology, radiation therapy. CANCER (a generic term for more than 100 different diseases characterized by uncontrolled, abnormal growth of cells) is one of the major killer diseases in humans whose origins are not yet well established despite extensive research in different international laboratories and hospitals all over the world. There are various kinds of cancers, e.g. breast cancer which accounts for 23% of all cancer cases in females, brain cancer, lung cancer, gastrointestinal (GI) cancer, cervical cancer, prostate cancer, etc. The treatment and prognosis are dependent upon the stage at which the cancer is detected, which in turn is governed by the accurate and sensitive cancer diagnostic methodology. Imaging techniques based on different radiations like X-rays and -rays are highly valuable, and are internationally recognized 'gold standards' for cancer diagnosis. X-rays, -rays, -particles, protons and heavy ions are useful for radiation therapy before or after the surgery of a cancerous organ. Radiation therapy can be given by internal radiation (brachytherapy) or external radiation for the treatment of cancer. About 4% of people in developed countries are diagnosed with cancer each year, and more than 50% of these patients are subjected to radiation therapy, along with surgery, as a part of their treatment protocols. Radiation therapy may be used with curative intent, or as a palliative treatment, where cure is not possible. It can be used alone or in combination with other approaches (surgery and chemotherapy) to treat localized solid tumours (e.g. cancers of the skin, brain, breast, or cervix), and also to treat cancers such as leukaemia and lymphoma. Radiation therapy works by ...

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Section: Heavy Ion Beam Therapymentioning

confidence: 99%

Evolution and Progress in the Application of Radiation in Cancer Diagnosis and Therapy

Aggarwal¹

2017

Current Science

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“…Moreover, it is unlikely to overcome beam-emittance asymmetry issues fully. 13 In the clinically implemented carbon-ion treatment planning system (TPS) Syngo (SIEMENS, Germany), spot sizes in X-and Y-direction were assumed to be completely concordant. A similar beam spot setting was applied in RayStation (Ray-Search Laboratories, Stockholm/Sweden) during the commissioning of a proton facility.…”

Section: Introductionmentioning

confidence: 99%

The influence of beam optics asymmetric distribution on dose in scanning carbon‐ion radiotherapy

Dong

Zhang

Schlegel

et al. 2022

J Applied Clin Med Phys

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“…Several preliminary studies have considered superconducting magnets with dipoles of ∼5 T for C 6þ ion beam of ∼400 MeV=u [7][8][9][10]. The gantries can use upstream scanning or downstream scanning.…”

Section: Introductionmentioning

confidence: 99%

“…Using a 130-mm bore radius 5-T superconducting combined-function magnet as a final BM [8], we could reduce the size of a CIRT gantry to L ¼ 12 m × r ¼ 6 m [8,9], which is as compact as existing gantries for use in proton-beam therapy. With parallel scanning, this gantry can cover a 15 cm × 15 cm scanning area at the isocenter.…”

Section: Introductionmentioning

confidence: 99%

Design of a compact gantry for carbon-ion beam therapy

Kim

Yoon

2019

Phys. Rev. Accel. Beams

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This paper presents the design of a compact gantry that uses superconducting bending magnets (BMs), for use in carbon-ion beam therapy. The size of the gantry is comparable to those of existing gantries that are used for proton-beam therapy. The designed gantry provides point-to-parallel scanning over an area of 20 cm × 20 cm at the isocenter, and has rotationally invariant optics, which are enabled by quadrupole and dipole magnets together with a 90°combined-function magnet with 18.6-cm bore radius. A 90°BM accommodates large scanning angles; it also provides equal focusing in horizontal and vertical planes, and zero-integrated nonlinear fields to minimize beam distortion at the isocenter. Three-dimensional field analysis of the magnet, and particle-tracking simulation, validate the beam optics of the gantry and point-toparallel scanning. The Taylor map and the Lie map are shown to be useful in the analysis of magnetic fields and in optimizing the coil windings.

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An ion-optical design study of a carbon-ion rotating gantry with a superconducting final bending magnet

Cited by 6 publications

References 25 publications

Evolution and Progress in the Application of Radiation in Cancer Diagnosis and Therapy

Evolution and Progress in the Application of Radiation in Cancer Diagnosis and Therapy

The influence of beam optics asymmetric distribution on dose in scanning carbon‐ion radiotherapy

Design of a compact gantry for carbon-ion beam therapy

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