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For the research of CCD neutron radiography, a neutron collimator was designed based on the exit of thermal neutron of the Boron Neutron Capture Therapy (BNCT) reactor. Based on the Geant4 simulations, the preliminary choice of the size of…

Instrumentation and Detectors · Physics 2014-03-05 XP. Yang , BX. Yu , YG. Li , D. Peng , J. Lu , GL. Zhang , H. Zhao , AW. Zhang , CY. Li , WJ. Liu , T. Hu , JG. Lv

A high-intensity continuous wave (CW) radio frequency quadrupole (RFQ) accelerator is designed for boron neutron capture therapy (BNCT). The transmission efficiency of a 20-mA proton beam accelerated from 30 keV to 2.5 MeV can reach 98.7%…

Accelerator Physics · Physics 2021-03-15 Zhichao Gao , Liang Lu , Chaochao Xing , Lei Yang , Tao He , Xueying Zhang

The radiotherapy of malignant diseases has reached much progress during the past decade. Thus, intensity modulated radiation therapy (IMRT) and VMAT (Rapidarc) now belong to the standard modalities of tumor treatment with high energy…

Medical Physics · Physics 2016-11-15 W. Ulmer , A. Carabe-Fernandez

Laser acceleration promises innovation in particle beam therapy of cancer where an ultra-compact accelerator system for cancer beam therapy can become affordable to a broad range of patients. This is not feasible without the introduction of…

The average Relative Biological effectiveness (RBE) factors for neutron irradiation in the context of a BNCT treatment are studied. This research considers the various interactions and secondary particles of each process and estimates the…

Medical Physics · Physics 2025-01-30 M. Pedrosa-Rivera , J. Praena , C. Ruiz-Ruiz , M. J. Ruiz-Magaña , I. Porras

Stereotactic body radiation therapy (SBRT) refers to focusing high-energy rays in three-dimensional space on the tumor lesion area, reducing the dose received by surrounding normal tissues, which can effectively improve the local control…

Medical Physics · Physics 2024-02-27 Yanqi Zong , Zhengrong Cui , Luqi Lin , Sihao Wang , Yizhi Chen

Treating cancer is one of the most challenging task in medical sciences. Only limited types of cancer treatments are available as their study is still ongoing. The earlier therapies like radiotherapy with x-rays, chemotherapy are associated…

Accelerator Physics · Physics 2024-06-06 R. Kanishka

The feasibility of performing fast neutron resonance radiography at the PTB accelerator facility is studied. A neutron beam of a broad spectral distribution is produced by a pulsed 13 MeV deuterium beam hitting a thick Be target. The…

Nuclear Experiment · Physics 2007-05-23 V. Dangendorf , G. Laczko , C. Kersten , O. Jagutzki , U. Spillmann

Proton beam therapy can potentially offer improved treatment for cancers of the head and neck and in paediatric patients. There has been a sharp uptake of proton beam therapy in recent years as improved delivery techniques and patient…

Carbon ions offer significant advantages for deep-seated local tumors therapy due to their physical and biological properties. Secondary particles, especially neutrons caused by heavy ion reactions should be carefully considered in…

Medical Physics · Physics 2016-08-03 Jun-Kui Xu , You-Wu Su , Wu-Yuan Li , Wei-Wei Yan , Xi-Meng Chen , Wang Mao , Cheng-Guo Pang

Photons are exponentially attenuated in matter producing high doses close to the surface. Therefore they are not well suited for the treatment of deep seated tumours. Charged particles, in contrast, exhibit a sharp increase of ionisation…

Instrumentation and Detectors · Physics 2009-11-06 C. Grupen

Neutron Resonance Transmission Analysis (NRTA) is a spectroscopic technique which uses the resonant absorption of neutrons in the epithermal range to infer the isotopic composition of an object. This spectroscopic technique has relevance in…

Instrumentation and Detectors · Physics 2021-05-19 Ethan A. Klein , Farheen Naqvi , Jacob E. Bickus , Hin Y. Lee , Robert J. Goldston , Areg Danagoulian

We present the current status of our project of developing a photon counting detector for medical imaging. An example motivation lays in producing a monitoring and dosimetry device for boron neutron capture therapy, currently not…

This study investigates into the adsorption sensing capabilities of single-walled (5,5) boron nitride nanotubes (BNNTs) towards environmental pollutant gas molecules, including CH2, SO2, NH3, H2Se, CO2 and CS2. Employing a linear…

Computational Physics · Physics 2025-11-07 Chaithanya Purushottam Bhat , Joy Mukherjee , Antara Banerjee , Debashis Bandyopadhyay

Ion beam therapy has become a frequently applied form of cancer therapy over the last years. The advantage of ion beam therapy over conventional radiotherapy using photons is the strongly localized dose deposition, leading to a reduction of…

Instrumentation and Detectors · Physics 2020-07-28 F. Ulrich-Pur , T. Bergauer , A. Burker , S. Hatamikia , A. Hirtl , C. Irmler , S. Kaser , P. Paulitsch , F. Pitters , V. Teufelhart

Short single-walled carbon nanotubes (SWNTs) functionalized by PEGylated phospholipids are biologically non-toxic and long-circulating nanomaterials with intrinsic near infrared photoluminescence (NIR PL), characteristic Raman spectra, and…

Two full rotating gantry with different nozzles (Multipurpose nozzle with MLC, Scanning Dedicated nozzle) with conventional cyclotron system is installed and under commissioning for various proton treatment options at Samsung Medical Center…

In the last ten years the use of proton beams in radiation therapy has become a clinical tool for treatment of deep-seated tumours. LIBO is a RF compact and low cost proton linear accelerator (SCL type) for hadrontherapy. It is conceived by…

Accelerator Physics · Physics 2009-09-29 Paolo Berra

The term beta-beam has been coined for the production of a pure beam of electron neutrinos or their antiparticles through the decay of radioactive ions circulating in a storage ring. This concept requires radioactive ions to be accelerated…

This article describes the design features and the first test measurements obtained during the installation of a novel high resolution 2D neutron detection technique. The technique proposed in this work consists of a boron layer (enriched…