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Journal Articles

Overview of particle and heavy ion transport code system PHITS

Sato, Tatsuhiko; Niita, Koji*; Matsuda, Norihiro; Hashimoto, Shintaro; Iwamoto, Yosuke; Furuta, Takuya; Noda, Shusaku; Ogawa, Tatsuhiko; Iwase, Hiroshi*; Nakashima, Hiroshi; et al.

Annals of Nuclear Energy, 82, p.110 - 115, 2015/08

 Times Cited Count:7 Percentile:22.72(Nuclear Science & Technology)

The general purpose Monte Carlo Particle and Heavy Ion Transport code System, PHITS, is being developed through a collaboration of several institutes in Japan and Europe. The Japan Atomic Energy Agency is responsible for managing the entire project. PHITS can deal with the transport of nearly all particles, including neutrons, protons, heavy ions, photons, and electrons, over wide energy ranges using various nuclear reaction models and data libraries. This paper briefly summarizes the physics models implemented in PHITS, and introduces some important functions useful for particular purposes, such as an event generator mode and beam transport functions.

Journal Articles

Overview of particle and heavy ion transport code system PHITS

Iwamoto, Yosuke; Sato, Tatsuhiko; Niita, Koji*; Matsuda, Norihiro; Hashimoto, Shintaro; Furuta, Takuya; Noda, Shusaku; Ogawa, Tatsuhiko; Iwase, Hiroshi*; Nakashima, Hiroshi; et al.

JAEA-Conf 2014-002, p.69 - 74, 2015/02

A general purpose Monte Carlo Particle and Heavy Ion Transport code System, PHITS, is being developed through the collaboration of several institutes in Japan and Europe. PHITS can deal with the transport of nearly all particles, including neutrons, protons, heavy ions, photons, and electrons, over wide energy ranges using various nuclear reaction models and data libraries. All components of PHITS such as its source, executable and data-library files are assembled in one package and then distributed to many countries. More than 1,000 researchers apply the code to various research and development fields such as nuclear technology, accelerator design, medical physics, and cosmic-ray research. This presentation briefly summarizes the physics models implemented in PHITS, and introduces some important functions for specific applications, such as an event generator mode and a radiation damage calculation function.

Journal Articles

Improvement of photonuclear reaction model below 140 MeV in the PHITS code

Noda, Shusaku; Hashimoto, Shintaro; Sato, Tatsuhiko; Fukahori, Tokio; Chiba, Satoshi*; Niita, Koji*

Journal of Nuclear Science and Technology, 52(1), p.57 - 62, 2015/01

 Times Cited Count:7 Percentile:22.72(Nuclear Science & Technology)

The author improved the photonuclear reaction model in the PHITS code for incident photon energy below 140 MeV. There are three major improvements: (1) JENDL Photonuclear Data File (JENDL/PD-2004) is adopted to determine the total reaction cross section, (2) the evaporation model for the giant resonance of some light nuclei is modified considering the isospin selection rule, and (3) the quasideuteron disintegration process is implemented in the JAERI Quantum Molecular Dynamics model. The improved PHITS code can contribute to various practical applications such as neutron dose estimation in X-ray therapy.

Journal Articles

Overview of the PHITS code and its application to medical physics

Sato, Tatsuhiko; Niita, Koji*; Matsuda, Norihiro; Hashimoto, Shintaro; Iwamoto, Yosuke; Noda, Shusaku; Iwase, Hiroshi*; Nakashima, Hiroshi; Fukahori, Tokio; Chiba, Satoshi; et al.

Progress in Nuclear Science and Technology (Internet), 4, p.879 - 882, 2014/04

PHITS is a general purpose 3-dimensional Monte-Carlo particle transport simulation code developed under collaboration of Japan Atomic Energy Agency (JAEA), Research Organization for Information Science and Technology (RIST), High Energy Accelerator Research Organization (KEK) and a couple of other institutes in Japan and Sweden. General features of the PHITS code together with details of the established model will be presented at the meeting.

Journal Articles

Features of PHITS and its application to medical physics

Hashimoto, Shintaro; Niita, Koji*; Matsuda, Norihiro; Iwamoto, Yosuke; Iwase, Hiroshi*; Sato, Tatsuhiko; Noda, Shusaku; Ogawa, Tatsuhiko; Nakashima, Hiroshi; Fukahori, Tokio; et al.

Igaku Butsuri, 33(2), p.88 - 95, 2013/10

no abstracts in English

Journal Articles

Particle and heavy ion transport code system, PHITS, version 2.52

Sato, Tatsuhiko; Niita, Koji*; Matsuda, Norihiro; Hashimoto, Shintaro; Iwamoto, Yosuke; Noda, Shusaku; Ogawa, Tatsuhiko; Iwase, Hiroshi*; Nakashima, Hiroshi; Fukahori, Tokio; et al.

Journal of Nuclear Science and Technology, 50(9), p.913 - 923, 2013/09

 Times Cited Count:393 Percentile:0.02(Nuclear Science & Technology)

An upgraded version of the Particle and Heavy Ion Transport code System, PHITS 2.52, was developed and released to public. The new version has been greatly improved from the previous released version, PHITS 2.24, in terms of not only the code itself but also the contents of its package such as attached data libraries. Owing to these improvements, PHITS became a more powerful tool for particle transport simulation applicable to various research and development fields such as nuclear technology, accelerator design, medical physics, and cosmic-ray research.

Journal Articles

Features of the latest version of the PHITS code

Sato, Tatsuhiko; Niita, Koji*; Matsuda, Norihiro; Hashimoto, Shintaro; Iwamoto, Yosuke; Noda, Shusaku; Ogawa, Tatsuhiko; Nakashima, Hiroshi; Fukahori, Tokio; Okumura, Keisuke; et al.

RIST News, (54), p.14 - 24, 2013/01

Features of the latest version of the PHITS code (version 2.52) is described.

Journal Articles

Man with Ph.D. come into the world

Noda, Shusaku

Kaku Deta Nyusu (Internet), (102), p.72 - 78, 2012/06

The author introduces his Ph.D. research and the life in Los Alamos. The author also introduces his current job, development of the PHITS code.

Journal Articles

Performance of a phoswich detector composed of an inner NaI(Tl) crystal and surrounding NE102A plastic scintillator for neutron spectrometry

Watanabe, Takehito*; Arakawa, Hiroyuki*; Kajimoto, Tsuyoshi*; Iwamoto, Yosuke; Satoh, Daiki; Kunieda, Satoshi; Noda, Shusaku*; Shigyo, Nobuhiro*; Ishibashi, Kenji*; Nakamura, Takashi*; et al.

Nuclear Instruments and Methods in Physics Research A, 587(1), p.20 - 28, 2008/03

 Percentile:100(Instruments & Instrumentation)

We have developed a phoswich detector for neutron spectrometry, which adopts a reversed configuration of slow- and fast-decay-time scintillators in its inner and surrounding outer regions, respectively, in the detection of recoil protons from a hydrogenous radiator. The phoswich detector consists of an inner slow, NaI(Tl) scintillator, and an outer fast, plastic scintillator. The response functions of the phoswich detector were measured for neutron energies ranging from 100 to 350 MeV. The experiment used the recoil-proton method and pulse-shape discrimination with the two-gate integration technique using a spallation neutron source at the WNR facility of the LANSCE. To evaluate the effectiveness of the phoswich configuration, full energy deposition fraction was calculated. The calculation confirmed that the phoswich detector with a reversed configuration is useful for neutron measurements.

Oral presentation

Implementation of EGS5 physics into PHITS

Iwase, Hiroshi*; Namito, Yoshihito*; Hirayama, Hideo*; Niita, Koji*; Hashimoto, Shintaro; Matsuda, Norihiro; Noda, Shusaku; Ota, Shuya*; Iwamoto, Yosuke; Sato, Tatsuhiko; et al.

no journal, , 

The Electron Gamma Shower (EGS), which has been developed by Univ. of Michigan, SLAC, Canadian government, KEK etc., is one of the electrons and $$gamma$$-ray shower transport Monte Carlo code. The EGS5 code is used in various fields of radiation shielding of accelerator facilities, design of radiation detectors, dose estimation in medical application, and so on. The Particle and Heavy Ion Transport code System PHITS, the multi-purpose and multi-particle Monte Carlo code, has a lot of useful user-interfaces and output functions. It would be of great benefit to EGS users if EGS5 can be operated in the PHITS system, and to PHITS users too, if the EGS5 physics can be used in the PHITS code. The EGS5 models are divided into some parts and implemented in the PHITS code in a manner that the calculation procedure is identical to the original EGS5 so that users can obtain same results.

Oral presentation

Improvement of giant dipole resonance cross section in the PHITS code

Noda, Shusaku; Hashimoto, Shintaro; Sato, Tatsuhiko; Fukahori, Tokio; Chiba, Satoshi; Niita, Koji*

no journal, , 

The author has improved the photonuclear cross section embedded in the PHITS code.

Oral presentation

Recent upgrade of the PHITS code and its applications

Sato, Tatsuhiko; Niita, Koji*; Matsuda, Norihiro; Hashimoto, Shintaro; Iwamoto, Yosuke; Iwase, Hiroshi*; Noda, Shusaku; Ogawa, Tatsuhiko; Nakashima, Hiroshi; Fukahori, Tokio; et al.

no journal, , 

Recently, we released PHITS version 2.5, which has the following new features: (1) Incorporation of the latest intra-nuclear cascade model such as INCL 4.6, (2) Implementation of the statistical multi-fragmentation model and high-energy photo-nuclear reaction model, (3) Re-evaluation of the Kerma factors contained in the neutron nuclear data library based on JENDL-4.0, (4) Access to shared-memory parallelism using the OpenMP architecture, (5) Implementation of the uncertainty-estimation function on the basis of history and batch variances, (6) Improvement of the user support tools such as the installers for Windows and MacDetails of these new features will be presented at the meeting.

Oral presentation

Incorporation of the quasideuteron model in the PHITS code

Noda, Shusaku; Hashimoto, Shintaro; Sato, Tatsuhiko; Fukahori, Tokio; Chiba, Satoshi; Niita, Koji*

no journal, , 

The author has developed the quasideuteron model in the PHITS code.

Oral presentation

Development of photon-induced pion production in the PHITS Code

Noda, Shusaku; Hashimoto, Shintaro; Sato, Tatsuhiko; Niita, Koji*

no journal, , 

It is of great importance to estimate the dose of secondarily generated protons and neutrons by photonuclear reaction. The Particle and Heavy Ion Transport code System (PHITS) used to be able to treat photonuclear reactions only up to 150 MeV because giant-dipole resonance and quasideuteron reaction were considered. When a high energy photon above 150 MeV induces photonuclear reaction with nucleus, nucleon resonance is produced followed by pion production. In this research, pion-production total cross section for every nucleus is determined using the systematics considering nuclear medium effect and shadowing effect of each nucleus. The process of pion production such as resonance and its decay is simulated, and subsequently emitted pion(s) and proton/neutron are transported in the JQMD model of the PHITS code. As a benchmark test the PHITS calculation results are compared with the experimental data of photon-incident proton/neutron-emission cross sections.

Oral presentation

Development of the photonuclear reaction model in the PHITS code

Noda, Shusaku; Hashimoto, Shintaro; Sato, Tatsuhiko; Fukahori, Tokio; Chiba, Satoshi*; Niita, Koji*

no journal, , 

Medical linac is commonly used in photonthereapy. High energy photons can induce the photonuclear reaction generating proton and neutrons. Improvement of the PHITS code is needed to accurately estimate the dose rate for the human body. In this study, we developed the PHITS code to applicable to the incident photon energy of 140 MeV; (1) adopted the evaluated photonuclear data file (JENDL/PD-2004), (2) improved the evaporation model for the light nuclei excited by photon, (3) developed the quasideuteron process in the JAERI Quantumn Molecular Dynamics (JQMD) model. Owing to these improvements, PHITS can handle the photonuclear reaction against the incident photon energy below 140 MeV. As an example, the photon-induced proton/neutron-emission cross sections are well reproduced using improved PHITS.

Oral presentation

Including the muon nuclear reaction model into the PHITS code

Noda, Shusaku; Hashimoto, Shintaro; Sato, Tatsuhiko; Niita, Koji*; Mizuno, Yoshiyuki*

no journal, , 

The authors has improve the photonuclear reaction model in the PHITS code. Photon-induced pion production process is newly included in PHITS in order to reproduce the photonuclear reaction caused by virtual photons generated from muon nuclear interaction. PHITS with the improved photonuclear reaction model can reproduce the experimental reults to some accuracy. Moreover it is planned to include the virtual photon generation model. Using the phonuclear reaction model and the muon interaction model, PHITS can be to handle the muon interation.

Oral presentation

Particle and heavy ion transport code system; PHITS

Sato, Tatsuhiko; Niita, Koji*; Matsuda, Norihiro; Hashimoto, Shintaro; Iwamoto, Yosuke; Furuta, Takuya; Iwase, Hiroshi*; Noda, Shusaku; Ogawa, Tatsuhiko; Nakashima, Hiroshi; et al.

no journal, , 

General features of the Particle and Heavy Ion Transport Code System, PHITS, will be described at the meeting.

Oral presentation

Particle and heavy ion transport code system PHITS; Recent improvements and future plans

Sato, Tatsuhiko; Matsuda, Norihiro; Hashimoto, Shintaro; Iwamoto, Yosuke; Furuta, Takuya; Noda, Shusaku; Ogawa, Tatsuhiko; Nakashima, Hiroshi; Fukahori, Tokio; Okumura, Keisuke; et al.

no journal, , 

Recent improvements and future plans of the development of Particle and Heavy Ion Transport Code System (PHITS) will be described at the meeting.

18 (Records 1-18 displayed on this page)
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