Journal profile · Medicine-Radiology, Nuclear Medicine and Imaging
International Journal of Particle Therapy
ISSN 2331-5180 · Allen Press · United States
International Journal of Particle Therapy: CAS Zone 4 · Medicine (2025 upgraded edition); impact factor 2 (journal website); fully open access; APC about USD 2,130; median 104 days to acceptance (87 articles, last 24 months); 573 articles in 2025; indexed in ESCI and Scopus.
Scope
Aims, scope and focus
International Journal of Particle Therapy is published by Allen Press and is in Zone 4 of Medicine in the CAS Journal Ranking (2025 upgraded edition). By OpenAlex counts of its recent articles, its largest topics are Radiation Therapy and Dosimetry, Advanced Radiotherapy Techniques and Boron Compounds in Chemistry, together about 56.5% of its articles. Its main subfields are Radiology, Nuclear Medicine and Imaging. (generated from OpenAlex topic counts and CAS ranking data)
Our MissionLaunched in 2014 as the official journal of the Particle Therapy Co-Operative Group, it is the mission of IJPT to provide a preferred venue for disseminating the most up-to-date information on the clinical, physical, and biological research in proton, light-ion, and heavy charged-particle therapy. Since its founding, IJPT has published articles by nearly 300 prominent radiation oncologists, physicists, and dosimetrists from 200 institutions around the world.The IJPT is a quarterly open access journal. Visit our open access page for more information. Articles published in IJPT are distributed under the Creative Commons Attribution License (CC-BY). Articles are also digitally archived by PubMed Central, Portico, J-Gate, EBSCOhost, the Directory of Open Access Journals (DOAJ), Web of Science, and Elsevier's Scopus, among others.
From the journal's Aims & Scope
Research area (LetPub): Medicine-Radiology, Nuclear Medicine and Imaging
Editor-in-chief Nancy P. MendenhallPublisher website
Editorial board by country: 1 in mainland China (about 3%); most named United States 18, Japan 6, Germany 4, South Korea 2, India 2 (36 members with a country) Editorial board ↗Publisher website ·
Main research topics OpenAlex counts of recent articles; shares are approximate
- Radiation Therapy and DosimetryMedicine27.8%
- Advanced Radiotherapy TechniquesPhysics and Astronomy21.4%
- Boron Compounds in ChemistryMedicine7.2%
- Effects of Radiation ExposureMedicine6%
- Prostate Cancer Diagnosis and TreatmentMedicine4%
- Head and Neck Cancer StudiesMedicine3.4%
- Glioma Diagnosis and TreatmentMedicine2.5%
- Advances in Oncology and RadiotherapyMedicine2.3%
Rankings & indexing
CAS ranking and database indexing
CAS Journal Ranking
CAS Journal Ranking, upgraded edition (March 2025)Medicine Zone 4
| Level | Category | Zone |
|---|---|---|
| Major | Medicine | Zone 4 |
| Minor | Oncology | Zone 4 |
| Minor | Radiology, Nuclear Medicine & Medical Imaging | Zone 4 |
Top journal: noReview journal: no
CAS Xinrui Journal Ranking (March 2026)Medicine Zone 4
| Level | Category | Zone |
|---|---|---|
| Major | Medicine | Zone 4 |
| Minor | Oncology | Zone 4 |
| Minor | Radiology, Nuclear Medicine & Medical Imaging | Zone 4 |
Top journal: noReview journal: not marked
CAS Journal Ranking, previous upgraded edition (December 2023)Not covered
Not covered by this edition.
Database indexing
ESCIScopusDOAJLetPub
International journal early-warning lists: not listed in any editionLetPub
Indexing the journal's website claims
PubMedPublisher website
Other: Crossref
As the journal's website lists them, not checked against each database; for Web of Science editions the records above apply.
Editions, and major and minor categories, are shown separately and never merged into one zone; check which edition your institution uses before you submit or report.
Metrics
Impact metrics and publication volume
Impact
- Impact factor (publisher)
- 2Publisher website ·
- CiteScore 2026-06
- 3.4LetPub ·
- CiteScore (publisher)
- 3.4Publisher website ·
- SJR 2026-06
- 0.63LetPub ·
- SNIP 2026-06
- 0.86LetPub ·
- h-index
- 31OpenAlex ·
- i10-index
- 140OpenAlex ·
- 2-year mean citedness
- 0.11OpenAlex ·
- Self-citation rate
- 5%LetPub ·
- Share of gold OA articles
- 100%LetPub ·
Volume
- Articles per year
- 43LetPub ·
- Articles per year (publisher)
- 300Publisher website ·
Articles by year OpenAlex count · 2,253 in total · the current year is incomplete
| Year | Articles | Open access | Citations |
|---|---|---|---|
| 2026 | 723 | 723 | 7 |
| 2025 | 573 | 573 | 45 |
| 2024 | 628 | 628 | 162 |
| 2023 | 23 | 23 | 120 |
| 2022 | 26 | 26 | 272 |
| 2021 | 70 | 70 | 921 |
Sources count differently and were observed at different times, so each source's own value is kept; "publisher" marks figures from the journal's website.
Review & acceptance
Review time and acceptance
Review time from article dates manuscript dates registered with PubMed · to
104 daysMedian, submission to acceptance · P25–P75 68 days – 152 days
- Acceptance to online
- median 4 days (87 articles)
- Submission to online
- median 111 days
- Sample
- 87 articles with submission and acceptance dates (96 in the window); the latest was accepted on
Only articles that were accepted and published are counted, not the time spent on rejected manuscripts, so this usually runs longer than a publisher's "time to first decision".
Other sources
- Average review time (community reports)
- about 20 weeksLetPub ·
- Submission to acceptance
- 87 daysPublisher website ·
- Submission to publication (journal-reported)
- about 14 weeksDOAJ ·
- Peer review
- Single anonymous peer reviewDOAJ
Community reports come from authors' own submissions (confidence 0.5) and are not a promise from the journal; for publisher figures, the journal's own definitions apply.
Fees & open access
APC and open-access policy
Fully open accessDOAJ
Every article is open access; authors usually pay an article processing charge (APC).
| Source | APC | Fee waiver | License | Observed |
|---|---|---|---|---|
| DOAJ | USD 2,130 | Yes | CC BY, CC BY-NC-ND | |
| OpenAlex | USD 1,700 / EUR 1,590 / GBP 1,360 / JPY 210,850 | — | — | |
| LetPub | USD 1,700 | Yes | — | |
| Publisher website | USD 2,300 | — | — |
The journal's website is authoritative for fees; sources were observed at different times and each keeps its own value, without averaging.
Submission
Article types and submission policies (journal website)
What to prepare7 items from the author guidelines
- Abstract
- ≤ 300 words
- Keywords
- ≥ 3
- Manuscript length
- ≤ 4,500 words
- Reference style
- Numbered, in order of citation
- Highlights
- Optional
- Graphical abstract
- Optional
- Cover letter
- Required
Article types accepted12, with length limits
- case reportOriginal articles, Reviews, and Technical Reports should have a maximum of 4,500 words (including the abstract, body text, and figure legend).Case Reports shoul…main text ≤ 1,500 words
- case reportsCase Reports should have a maximum of 1,500 words.Length not stated
- letterOriginal articles, Reviews, and Technical Reports should have a maximum of 4,500 words (including the abstract, body text, and figure legend).Case Reports shoul…Length not stated
- letters to the editorOriginal articles, Reviews, and Technical Reports should have a maximum of 4,500 words (including the abstract, body text, and figure legend).Case Reports shoul…Length not stated
- letters to the editor, or scientific lettersLetters to the Editor, or Scientific Letters, do not require abstracts and should have a maximum of 3,500 words.Length not stated
- original articleOriginal articles, Reviews, and Technical Reports should have a maximum of 4,500 words (including the abstract, body text, and figure legend).Case Reports shoul…main text ≤ 4,500 words
- original articlesOriginal articles, Reviews, and Technical Reports should have a maximum of 4,500 words (including the abstract, body text, and figure legend).Length not stated
- reviewOriginal articles, Reviews, and Technical Reports should have a maximum of 4,500 words (including the abstract, body text, and figure legend).Case Reports shoul…Length not stated
- reviewsOriginal articles, Reviews, and Technical Reports should have a maximum of 4,500 words (including the abstract, body text, and figure legend).Length not stated
- technical noteOriginal articles, Reviews, and Technical Reports should have a maximum of 4,500 words (including the abstract, body text, and figure legend).Case Reports shoul…main text ≤ 3,500 words
- technical notesTechnical notes should have a maximum of 3,500 words (including the abstract, body text, and figure legend).Length not stated
- technical reportsOriginal articles, Reviews, and Technical Reports should have a maximum of 4,500 words (including the abstract, body text, and figure legend).Length not stated
Policy excerpts from the journal's websiteAI use, Authorship, Conflicts of interest, License & copyright, Open access, Peer review, Plagiarism, Preprints
- AI use Declaration of generative AI in scientific writing
Authors must declare the use of generative AI tools in the manuscript preparation process upon submission of the paper.Generative AI and AI-assisted technologies (“AI tools”) have been rapidly adopted in research and scholarly publishing, offering significant benefits while requiring clear standards for responsible and transparent use.Authors preparing a manuscript for this journal may use AI tool…
Source ↗Publisher website ·- Authorship CRediT Author Statement
A CRediT (Contributor Roles Taxonomy) author statement, which defines all author roles, should be provided on your title page. Author roles should also be specified during the submission process and will appear in the declarations/acknowledgement section of your article when published. The 14 roles played by contributors are listed below:ConceptualizationData curationFormal AnalysisFunding acquisi…
Source ↗Publisher website ·- Conflicts of interest Declaration of competing interest
Corresponding authors, on behalf of all the authors of a submission, must disclose any financial and personal relationships with other people or organizations that could inappropriately influence (bias) their work. Examples of potential conflicts of interest include employment, consultancies, stock ownership, honoraria, paid expert testimony, patent applications/registrations, and grants or other …
Source ↗Publisher website ·- License & copyright Copyright
Upon acceptance of an article, authors will be asked to complete a 'License Agreement' (see more information on this). Permitted third party reuse of open access articles is determined by the author's choice of user license.Author rightsAs an author you (or your employer or institution) have certain rights to reuse your work. More information.
Source ↗Publisher website ·- Open access Open Access
Please visit our Open Access page for more information.The IJPT Fee Waiver Policy in Support of Particle Therapy ResearchThe International Journal of Particle Therapy (IJPT) is the official journal of the Particle Therapy Co-Operative Group (PTCOG). The goals of the IJPT are to:assure an efficient means for dissemination of peer-reviewed information regarding particle therapy;become the preferred …
Source ↗Publisher website ·- Peer review Peer review
Peer review process Model summary
This journal operates a single anonymized review process. All contributions will be initially assessed by the editor for suitability for the journal. Papers deemed suitable are then typically sent to a minimum of two independent expert reviewers to assess the scientific quality of the paper. The Editor is responsible for the final decision regarding acceptance or rejection of articles. The Editor'…
Source ↗Publisher website ·- Plagiarism
Originality check Model summary
To verify compliance, your article may be checked by Crossref Similarity Check and other originality or duplicate checking software.
Source ↗Publisher website ·- Preprints Preprints
Preprint policy Model summary
A preprint, or the Author's Original Manuscript (AOM), is submitted to an online repository prior to the formal peer review process. IJPT does not consider posting on a preprint server to be duplicate publication; however, if you have posted your article to a preprint server, please adhere to the following: Upon submission, the title page of your submission should feature a disclosure of the prepr…
Source ↗Publisher website ·
Excerpts are quoted from the journal's website; "model summary" lines are written by Workers AI and checked against the text. The journal's website is authoritative.
Profile
Publication details and official links
- Publisher
- Allen Press
- Country or region
- United States
- Language
- English
- ISSN
- 2331-5180
- Society / sponsor
- Particle Therapy Co-Operative Group
- Official links
- Journal homepage ↗DOAJ
- Submission system ↗Publisher website
- Author guidelines ↗LetPub
- Aims & Scope ↗LetPub
- Special issues ↗Publisher website
- APC information ↗DOAJ
- Fee waivers ↗DOAJ
- Open access statement ↗DOAJ
- License & copyright ↗DOAJ
- Peer review process ↗LetPub
- Editorial board ↗LetPub
- Plagiarism policy ↗DOAJ
FAQ
Frequently asked questions about International Journal of Particle Therapy
What CAS zone is International Journal of Particle Therapy in?
In the 2025 upgraded edition of the CAS Journal Ranking, International Journal of Particle Therapy is in Zone 4 of Medicine, and in Zone 4 of the minor category Oncology / Radiology, Nuclear Medicine & Medical Imaging. In the 2026 Xinrui edition it is in Zone 4 of Medicine. Zones from different editions, and from major and minor categories, are not interchangeable.
What is the impact factor of International Journal of Particle Therapy?
The journal's website gives an impact factor of 2; this is the journal's own figure, as LetPub lists none for it; CiteScore 3.4, h-index 31.
How long does peer review take at International Journal of Particle Therapy?
Based on the dates recorded on 87 articles published between October 2024 and October 2026 (the last 24 months), the median time from submission to acceptance is 104 days (interquartile range 68–152 days); authors report an average review time of about 20 weeks. Article statistics cover accepted papers only, publisher figures follow the journal's own definitions, and community reports come from authors' own submissions; none is a promise from the journal.
What are the manuscript requirements of International Journal of Particle Therapy?
According to the journal's author guidelines: Abstract: ≤ 300 words; Keywords: ≥ 3; Manuscript length: ≤ 4,500 words; Reference style: Numbered, in order of citation; Highlights: Optional; Graphical abstract: Optional; Cover letter: Required. A model extracted these from the author guidelines and each was checked against the text; check the latest version on the journal's website before submitting.
Where are the editorial board members of International Journal of Particle Therapy based?
Of the 36 board members whose country the journal's board page names, 1 (about 3%) are in mainland China; the countries named most often are United States (18), Japan (6) and Germany (4). Counted from the institutions listed on the board page; for reference only.
Which databases index International Journal of Particle Therapy?
According to LetPub and DOAJ records, International Journal of Particle Therapy is indexed in ESCI, Scopus and DOAJ. The journal's website also lists PubMed; that list has not been checked against each database.
Is International Journal of Particle Therapy open access, and what is the APC?
International Journal of Particle Therapy is a fully open-access journal. APC about USD 2,130.
Sources and updates
The facts on this page come from LetPub, Publisher website, OpenAlex, DOAJ; every figure is tagged with its source and the date it was observed, and conflicting values are kept per source. LetPub source page: view ↗ (archived 2026-08-26). Last updated: .