PHITS Homepage

2023/02/20: Announcement of 2023 PHITS online advanced tutorial

We are pleased to announce that the third PHITS online advanced tutorial will be held.
The course details are as follows

/Date : Oct. 9th-13th, 2023. UTC 11:00-15:00,
/Registration deadline for new users: 31st Aug. 2023
/Registration deadline for current users: 25th Sep. 2023
/Tutors : (JAEA) Tatsuhiko Ogawa, Tatsuhiko Sato, Takuya Furuta, Shintaro Hashimoto, Shinichiro Abe, Yuho Hirata, (Kyushu University) Nobuhiro Shigyo, (Western Norway University of Applied Sciences) Hunter N. Ratliff, (Hokkaido University) Yusuke Matsuya
/Registration Fee : Free
/Language: English
/Entry eligibility requirement : None
Please see Announcement of the PHITS online Tutorial for more details.
To register for the tutorial, please select "PHITS tutorial registration" and fill out the form here. If you would like to take both advanced and beginners' tutorial, please send the form twice.
We are looking forward to seeing you in the tutorial!

2023/02/20: Announcement of 2023 PHITS online tutorial for beginners

We are pleased to announce that the fifth PHITS online tutorial for beginners will be held.
The course details are as follows

/Date : Jun. 19th-23rd, 2023. UTC 11:00-14:00,
/Registration deadline for new users: 11th May 2023
/Registration deadline for current users: 12th Jun. 2023
/Tutors : (JAEA) Tatsuhiko Ogawa, Tatsuhiko Sato, Takuya Furuta, Shintaro Hashimoto, Shinichiro Abe, Yuho Hirata, (Kyushu University) Nobuhiro Shigyo, (Western Norway University of Applied Sciences) Hunter N. Ratliff, (Hokkaido University) Yusuke Matsuya
/Registration Fee : Free
/Language: English
/Entry eligibility requirement : None
Please see Announcement of the PHITS online Tutorial for more details.
To register for the tutorial, please select "PHITS tutorial registration" and fill out the form here. If you would like to take both advanced and beginners' tutorial, please send the form twice.
We are looking forward to seeing you in the tutorial!

2023/02/06: PHITS in-person tutorials in Asian countries in the early 2023

In-person tutorials will be held in several Asian countries in early 2023. Following courses have been confirmed. To register or for more details, please click the links.

1. Gadjah Mada University, Yogyakarta, Indonesia, Feb 6-9, 2023. Beginner course
2. De La Salle University, Manila & Philippine Nuclear Research Institute, Lungsod Quezon, Philippine, Mar. 6-10, Basic and Advanced courses
3. Malaysian Nuclear Agency, Bangi, Malaysia, Mar. 13-17, 2023. Beginner and intermediate courses
4. Institute for Nuclear Science and Technology (INST) of Vietnam, VINATOM, Ha Noi, Vietnam, Mar. 27-31, 2023. Beginners' course
5. Grand Richmond Hotel, Nonthaburi, Thailand, Mar. 27-31, 2023. Beginners' course + & medical advanced course

2022/10/02: PHITS in-person tutorial at OECD-NEA Paris 21-25th Nov. 2022.

An in-person tutorial hosted by OECD-NEA is held in Paris. This tutorial covers basics lectures, advanced lectures and individual hands-ons.
To register or for more details, please see

OECD-NEA Paris PHITS tutorial

2022/09/14: PHITS tutorial video now available on YouTube!

We recently created tutorial videos to learn how to use PHITS.
These are now available on YouTube. Please check the following website:

Playlist of the PHITS tutorial video

2022/04/07: Announcement of PHITS online advanced tutorial

We are pleased to announce that the second PHITS online advanced tutorial will be held.
The course details are as follows

/Date : Oct. 17th-21st, 2022. UTC 11:00-15:00,
/Registration deadline for new users: 26st Sep. 2022
/Registration deadline for current users: 10th Oct. 2022
/Tutors : (JAEA) Tatsuhiko Ogawa, Tatsuhiko Sato, Yosuke Iwamoto, Takuya Furuta, Shintaro Hashimoto, Shinichiro Abe, Yusuke Matsuya, (Kyushu University) Nobuhiro Shigyo, (Western Norway University of Applied Sciences) Hunter N. Ratliff
/Registration Fee : Free
/Language: English
/Entry eligibility requirement : None
Please see Announcement of the PHITS online Tutorial for more details.
To register for the tutorial, please select "PHITS tutorial registration" and fill out the form here. If you would like to take both advanced and beginners' tutorial, please send the form twice.
We are looking forward to seeing you in the tutorial!

2022/04/07: Announcement of PHITS online tutorial for beginners

We are pleased to announce that the fourth PHITS online tutorial for beginners will be held.
The course details are as follows

/Date : Jun. 6th-10th, 2022. UTC 11:00-14:00,
/Registration deadline for new users: 16th May. 2022
/Registration deadline for current users: 30th May. 2022
/Tutors : (JAEA) Tatsuhiko Ogawa, Tatsuhiko Sato, Yosuke Iwamoto, Takuya Furuta, Shintaro Hashimoto, Shinichiro Abe, Yusuke Matsuya, (Kyushu University) Nobuhiro Shigyo, (Western Norway University of Applied Sciences) Hunter N. Ratliff
/Registration Fee : Free
/Language: English
/Entry eligibility requirement : None
Please see Announcement of the PHITS online Tutorial for more details.
To register for the tutorial, please select "PHITS tutorial registration" and fill out the form here. If you would like to take both advanced and beginners' tutorial, please send the form twice.
We are looking forward to seeing you in the tutorial!

2022/03/31: Release of PHITS3.27

PHITS version 3.27 have been released! If you are a registered PHITS user and would like to continue to use PHITS, please select "PHITS upgrade patch request" in contact page, and send your information to us. If you have not registered to PHITS user yet, please obtain the license of PHITS by referring How to get page.

The features of the new version of PHITS are written in update log and this pdf file.

2021/09/06: Announcement of PHITS online tutorial for beginners

We are pleased to announce that the third PHITS online tutorial for beginners will be held.
The course details are as follows

/Date : Oct. 19th-22nd, 2021. UTC 11:00-15:00,
/Deadline for registration: 27th Sep. 2021
/Tutors : (JAEA) Tatsuhiko Ogawa, Tatsuhiko Sato, Yosuke Iwamoto, Takuya Furuta, Shintaro Hashimoto, Shinichiro Abe, Yusuke Matsuya, (Kyushu University) Nobuhiro Shigyo

/Registration Fee : Free
/Language: English
/Entry eligibility requirelent : None
Please see Announcement of the PHITS online Tutorial for more details.
To register for the tutorial, please select "PHITS tutorial registration" and fill out the form here. We are looking forward to seeing you online!

2021/06/15: PHITS forum for sharing questions

We just launched PHITS forum in the Kyushu University webserver.
https://meteor.nucl.kyushu-u.ac.jp/phitsforum/?locale=en.

Please write your questions in the "questions" category in the forum. In addition, we really appreciate if you could answer other users' questions because the purpose of launching this forum is to encourage the inter-communications between users. So, answers from developer team may be delayed. Of course, we still welcome your questions directly sent to us via the PHITS official website (https://phits.jaea.go.jp/contact/edit/en). However, when we receive a general question that might be useful for other users, we may ask you to forward the question to the forum because we would like to share the information as much as possible.

The following are some important notices for the use of the forum.

You have to create an account to write or answer questions in the forum.
Please select "questions" category and make a new topic for writing a new question.
You can upload input and output files of PHITS, and we recommend to use zip files if you want to upload more than 4 files.
Please add "optional tags" to your posts to make them as descriptive as possible. While the post categories are preset, you can enter custom optional tags.
In the error report of PHITS, please specify the version of PHITS, your machine environment (Windows, Mac, Linux), parallelization status (OpenMP, MPI, hybrid, or single).
We look forward to having many discussions on the forum.

2021/04/30: Announcement of PHITS online advanced tutorial

We are pleased to announce that the first PHITS online advanced tutorials will be held.
The details are as follows

/Date : Jul. 19-22nd, UTC 11:00-15:00, 2021
/Deadline for registration: 26th Jun. 2021
/Tutors : (JAEA) Tatsuhiko Ogawa, Tatsuhiko Sato, Yosuke Iwamoto, Takuya Furuta, Shintaro Hashimoto, Shinichiro Abe, Hunter Ratliff, Yusuke Matsuya, (Yuho Hirata if needed), (Kyushu University) Nobuhiro Shigyo

/Registration Fee : Free
/Language: English
/Entry eligibility requirement : None
Please see Announcement of the PHITS online Tutorial for more details.
If you have any question on this tutorial, please write to PHITS office. We are looking forward to seeing you online!

2021/04/05: PHITS promotion video released

We created a promotional video for PHITS.
Please access here on YouTube.

2021/03/30: Release of update patch from PHITS3.10 (or later) to PHITS3.24

PHITS version 3.24 as well as update patch from PHITS3.10 (or later) to 3.24 have been released!
Only licensed users after PHITS 3.10 can upgrade PHITS, and the procedure for the update has been announced via PHITS mailing list.
You can obtain the license of PHITS by submitting application form. (see How to Get page in more detail)

The features of the new version of PHITS are written in update log and this pdf file.

2020/10/20: Announcement of PHITS online tutorial

We are pleased to announce that the first and the second PHITS online tutorials will be held.
The details are as follows

Tutotial #1
/Date : Dec. 7-11th, UTC 14:00-18:00 (Basic course), 2020
/Deadline for registration: 8th Nov. 2020
/Tutors : (JAEA) Tatsuhiko Ogawa, Tatsuhiko Sato, Yosuke Iwamoto, Takuya Furuta, Shintaro Hashimoto, Shinichiro Abe, Hunter Ratliff, (Yusuke Matsuya, Yuho Hirata, if needed), (SLAC) Pi-En Tsai, (Kyushu University) Nobuhiro Shigyo

Tutotial #2
/Date : Feb. 1-5th, UTC 9:00-13:00 (Basic course), 2021
/Deadline for registration: 21st Dec. 2020
/Tutors : (JAEA) Tatsuhiko Ogawa, Tatsuhiko Sato, Yosuke Iwamoto, Takuya Furuta, Shintaro Hashimoto, Shinichiro Abe, Hunter Ratliff, (Yusuke Matsuya, Yuho Hirata, if needed), (Kyushu University) Nobuhiro Shigyo

/Registration Fee : Free
/Language: English
/Entry eligibility : None
Please see Announcement of the 1st and 2nd PHITS online Tutorials for more details.
If you have any question on this tutorial, please write to PHITS office. We are looking forward to seeing you online!

2021/04/09: Release of update patch from PHITS3.10 (or later) to PHITS3.20

PHITS version 3.20 as well as update patch from PHITS3.10 (or later) to 3.20 have been released!
Only licensed users after PHITS 3.10 can upgrade PHITS, and the procedure for the update has been announced via PHITS mailing list.
You can obtain the license of PHITS by submitting application form. (see How to Get page in more detail)

The features of the new version of PHITS are written in update log and this pdf file.

2020/01/07: Announcement of PHITS course in Argentina

We are pleased to announce that we will have the first PHITS training course in Argentina.
The details are as follows

/Venue : Centro Atomico Constituyentes, Comision Nacional de Energia Atomica (CNEA), Buenos Aires, Argentina (https://www.argentina.gob.ar/cnea/cac)
/Date : Mar. 5-6 (Basic course) & Mar. 9-11 (Advanced course), 2020
/Deadline for registration: Feb. 5, 2020
/Registration Fee : 200 EURO (including coffee break, lunch & social dinner)
/Language: English
/Tutors : Dr. Tatsuhiko Sato, Leader of PHITS development team, JAEA, Japan
Dr. Koji Niita, Primary programmer of PHITS, RIST, Japan
/Entry qualifications : None
/Local organizer : Dr. Sara Gonzalez (CNEA-CONICET), Eng. Mario Gadan (CNEA)

Please see Announcement of the PHITS Tutorial in Argentina in more details.
If you have any question on this course, please email to PHITS office. We are looking forward to seeing you at Argentina!

2019/10/31: Release of update patch from PHITS3.10 to PHITS3.17

We found some bugs in PHITS3.16, and release update patch from PHITS3.10 (or later) to 3.17
The procedure for the update has been announced only to licensed users after PHITS3.10. You can obtain the license of PHITS by submitting application form. (see How to Get page in more detail)

The features of the new version of PHITS are written in update log.

2019/10/17: Release of update patch from PHITS3.10 to PHITS3.16

Update patch from PHITS3.10 (or later) to 3.16 is released!
The procedure for the update has been announced only to licensed users after PHITS3.10. You can obtain the license of PHITS by submitting application form. (see How to Get page in more detail)

The features of the new version of PHITS are written in update log.

2019/09/06: Announcement of PHITS course in University of Mandalay, Myanmar

We are pleased to announce that we will have the first PHITS training course in Myanmar.
The details are as follows

/Venue : University of Mandalay, Myanmar (http://www.mu.edu.mm/)
/Date : 3-5 December 2019
/Deadline for registration: 1st November 2019
/Registration Fee : Free
/Language: English
/Tutors : Tatsuhiko Sato (JAEA)
/Entry qualifications : None
/Local organizer : Dr. NyeinWink Lwin, Mandalay University

Please see Announcement of the PHITS Tutorial in Myanmar in more details.
If you have any question on this course, please email to PHITS office. We are looking forward to seeing you at Myanmar!

2019/06/17: Announcement of 1st English PHITS course in Japan

We are pleased to announce that we will have a English PHITS training course in Ibaraki Quantum Beam Research Center in Japan 20-21 Aug, 2019. The details are as follows:
/Venue : Ibaraki Quantum Beam Research Center (IQBRC, close to JAEA and J-PARC)(Access map)
/Date : 20-21st August 2019
/Deadline for registration: 12th July 2019
/Registration Fee : Free
/Tutors : Tatsuhiko Sato, Takuya Furuta, Pi-En Tsai (JAEA)
/Contents : Basic course.
/Entry qualifications : None

Japanese PHITS tutorial will be held in parallel to the English course. Please see Announcement of 1st English PHITS tutorial in Japan in more details.
If you have any question on this course, please email to PHITS office. We are looking forward to seeing you at Tokai village in Japan!

2019/06/13: Announcement of PHITS course in VINATOM, Vietnam

We are pleased to announce that we will have a PHITS training course in VINATOM in Vietnam 27-30 Aug, 2019. The details are as follows
/Venue : Institute for Nuclear Science and Technology, VINATOM (http://www.inst.gov.vn/index.php/eng)
/Date : 27-30th August 2019
/Deadline for registration: 26th July 2019
/Registration Fee : Free
/Tutors : Tatsuhiko Sato (JAEA), Lembit Sihver (TU Wien)
/Contents : Comprehensive tutorial course ranging from the basics to advanced contents.
/Entry qualifications : None
/Local organizer : Dr. Le Ngoc Thiem (VINATOM)

Please see Announcement of the PHITS Tutorial in Vietnam in more details.
If you have any question on this course, please email to PHITS office. We are looking forward to seeing you at Vietnam!

2019/05/08: Registration of PHITS course in OECD/NEA is started

Registration of the PHITS course in OECD/NEA is started.
If you are interested in, please access OECD/NEA training course page for registration now!

The details are as follows
/Venue : OECD-NEA, FRANCE (https://www.oecd-nea.org/general/location/)
/Date : 16-20th September 2019
/Fee : 500 Euros
/Tutors : Tatsuhiko OGAWA, Pi-en TSAI (JAEA. PHITS authors)

2019/04/09: Release of PHITS version 3.10 and introduction of new export control policy

PHITS version 3.10 was released! The features of the new version of PHITS are written in update log. You can also find some important new features in this pdf file.

The export control polocy of PHITS was also changed. You can obtain the full package or update patch of PHITS 3.10 by submitting our new application form. Please see how to get page in more detail.

2018/12/21: Announcement of PHITS course in OECD/NEA, France

We are pleased to announce that we will have a PHITS training course in OECD/NEA in France on 16-20 Sep, 2019. The details are as follows
/Venue : OECD-NEA, FRANCE (https://www.oecd-nea.org/general/location/)
/Date : 16-20th September 2019
/Fee : 500 Euros
/Tutors : Tatsuhiko OGAWA, Pi-en TSAI (JAEA. PHITS authors)
/Contents : Comprehensive tutorial course ranging from the basics to advanced contents.
/Entry qualifications : People who work in one of the OECD-NEA data bank member states, Canada or US.

You can register the course via OECD/NEA training course page from spring 2019.
If you have any question on this course, please email to PHITS office. We are looking forward to seeing you at Paris!

2018/01/09: Publication on the latest PHITS (Ver.3.02)

The paper describing the features of the latest version of PHITS, Ver. 3.02, has been published as an open-access article in JNST.
It will be a new official reference of PHITS.
Tatsuhiko Sato, Yosuke Iwamoto, Shintaro Hashimoto, Tatsuhiko Ogawa, Takuya Furuta, Shin-ichiro Abe, Takeshi Kai, Pi-En Tsai, Norihiro Matsuda, Hiroshi Iwase, Nobuhiro Shigyo, Lembit Sihver and Koji Niita
Features of Particle and Heavy Ion Transport code System (PHITS) version 3.02, J. Nucl. Sci. Technol., 2018,
https://doi.org/10.1080/00223131.2017.1419890
This is an open access article, and you can download it from here.

Please have a read of this to know about the recent upgrades and make use of them for your work.
Please do not forget to cite this article in your future publications on PHITS.

Please also refer the following about benchmark calculations, when you discuss about the accuracy of PHITS.
Yosuke Iwamoto, Tatsuhiko Sato, Shintaro Hashimoto, Tatsuhiko Ogawa, Takuya Furuta, Shin-ichiro Abe, Takeshi Kai, Norihiro Matsuda, Ryuji Hosoyamada and Koji Niita
Benchmark study of the recent version of the PHITS code, J. Nucl. Sci. Technol. 54:5, (2017) 617-635.
Open access

2016/09/30: Release of update patch to PHITS2.88

Update patch from PHITS2.52 (or later) to 2.88 is released!
The procedure for the update has been announced via PHITS mailing list. You can register mailing list from contact page.
The update patch works only for PHITS2.52 (or later), so if you do not have recent version of PHITS, please obtain the code from OECD/NEA, RSICC, or RIST. (see How to Get page in more detail)

The features of the new version of PHITS are written in update log. You can also find some important new features in this pdf file.

We think that PHITS2.88 is greatly improved from the previous versions, and we appreciate your feedback very much.

Log of PHITS information before Aug. 2016. here