ImpaQ Ecosystem•Clarivate, Scopus & CORE Data
Clarivate WoS 2024 / 2025 Data
IMPAQ
WoS SCIE Q1Scopus Q1SCImago #1,225Top JournalHybrid

International Journal of Radiation Oncology Biology Physics

Acronym:rob
•
Abbreviation (ISO):INT. J. RADIAT. ONCOL. BIOL. PHYS
•
Identifier (ISSN):0360-3016(Print)/1879-355X(Online)
•
Publisher:Elsevier Inc.
Clarivate IF (2026)
7.4↑ +0.9
Journal Impact Factor
IF Trend↓
WoS Quartile
Q1
WoS SCIETop Tier
Clarivate WoS JCR
WoS Categories↓
JCR Release Date: 2026-06-17

Impact Factor Trend (2018–2026)

Clarivate IF trend for International Journal of Radiation Oncology Biology Physics

WoS Q1
368115.5520186.220195.8620207.0420218.012022720236.420246.520257.42026
Annual Impact Factor Metric
Current (2026):7.4
Scopus SJR & RankScopus Q1
2.173
#1,225

SCImago Journal Rank citation prestige weighting

Scopus Year: 2025
H-Index (2025)
295

295 papers with at least that number of citations each

WoS: SCIE / JCRTop Tier
Self-Citation Rate6.2%
Safe Level (< 15%)Warning Level (> 20%)
Self-citation below 15% indicates strong scholarly independence.
Volume & Open AccessHybrid
422articles/year
18.11% Gold OA•94.29% Original Research

Aims & Scope

International Journal of Radiation Oncology • Biology • Physics (IJROBP), known in the field as the Red Journal, publishes original laboratory and clinical investigations related to radiation oncology, radiation biology, medical physics, and both education and health policy as it relates to the field. This journal has a particular interest in original contributions of the following types: prospective clinical trials, outcomes research, and large database interrogation. In addition, it seeks reports of high-impact innovations in single or combined modality treatment, tumor sensitization, normal tissue protection (including both precision avoidance and pharmacologic means), brachytherapy, particle irradiation, and cancer imaging. Technical advances related to dosimetry and conformal radiation treatment planning are of interest, as are basic science studies investigating tumor physiology and the molecular biology underlying cancer and normal tissue radiation response.

Topics Covered (Recognized by AI)
Medicine99.9%Internal medicine83%Biology70.8%Surgery69.4%Radiology68.7%Radiation therapy59.3%Genetics58.9%Cancer43.5%Oncology42.6%Physics41.7%Pathology37.9%Nuclear medicine29.3%Medical physics22.3%Chemistry22.2%

WoS Categories & Quartiles

Detailed JCR / JCI category rankings and quartile breakdown from Clarivate

Clarivate JCR & JCI
JCRSCIE2026

ONCOLOGY

Q1
Rank51/333
IndexSCIE
JCRSCIE2026

RADIOLOGY, NUCLEAR MEDICINE & MEDICAL IMAGING

Q1
Rank13/217
IndexSCIE
JCISCIE2026

ONCOLOGY

Q1
Rank43/333
IndexSCIE
JCISCIE2026

RADIOLOGY, NUCLEAR MEDICINE & MEDICAL IMAGING

Q1
Rank19/217
IndexSCIE

Annual Historical Statistics & Publications

Track annual publication volume, total citations, and Impact Factor evolution

12 year
2026Latest
IF7.4
Articles / Year756
Total Citations208
2025
IF6.5
Articles / Year2,974
Total Citations1,989
2024
IF6.4
Articles / Year2,992
Total Citations4,967
2023
IF7
Articles / Year2,709
Total Citations8,088
2022
IF8.013
Articles / Year2,556
Total Citations9,482

SCImago & Scopus Journal Intelligence

Global SCImago ranking, SJR prestige index, Scopus coverage, and societal policy impact

Rank #1,225Scopus Q1SCImago Profile
Scopus Coverage:1975-2026
Scopus Broad Areas:Biochemistry, Genetics and Molecular BiologyMedicinePhysics and Astronomy
Scopus Citation Rank (SJR)Q1
2.173

Weighted prestige citation metric per document indexed in the Scopus database.

Quartile: Scopus Q1
Citations / Doc (2 years)
3.75

Average citations received per document published in the 2-year window.

2-Year Citation Window
Estimated Publication Fee (APC)
$3,798 USD

Estimated Article Processing Charge for Open Access publication.

Estimated cost / article

Scopus 3-Year Publication & Citation Window

3-Year Citations6,348
3-Year Documents1,643
Citable Documents1,012

Aggregated from Scopus database across the 3-year SJR evaluation window.

Societal Impact & Inclusivity (SCImago)

Policy Citations (Overton)3

Citations in government and international policy documents

Female Author Rate39.1%

Percentage of female authors published in the journal

Real-world societal policy reach and author gender diversity tracked by SCImago.

Scopus Subject Categories

Cancer ResearchQ1
OncologyQ1
RadiationQ1
Radiology, Nuclear Medicine and ImagingQ1
Academic Metric Intelligence

Journal Metrics & Citation Visualizations

Total Cites vs Self-Cites

Evaluation of scholarly independence and citation reach

Total citations steady growth
Self-citation: 6.2%

Citations per Document

Citation metric windows across 2, 3, and 4 years

Cites / Doc (4 years)Cites / Doc (3 years)Cites / Doc (2 years)

Chinese Academy of Sciences (CAS) Classification

Major / minor zone classification and CAS Early Warning List history

Major Category (Broad Field):
2区 (Zone 2)Medicine
Minor Category (Specific Field):
2区ONCOLOGY
CAS Early Warning List History:
Updated annually: 2020 – 2024
2020
Not warned
2021
Not warned
2022
Not warned
2023
Not warned
2024
Not warned

Academic Intelligence Overview & Context

ImpaQ Analysis

International Journal of Radiation Oncology Biology Physics (acronym: rob, abbr: INT. J. RADIAT. ONCOL. BIOL. PHYS, ISSN: 0360-3016) is a peer-reviewed international scholarly journal in the field of Medicine, published by Elsevier Inc. in United States since 1975. The periodical holds a Journal Impact Factor (JIF) of 7.40, ranking in quartile Q1 of Web of Science (SCIE), a Scopus SJR indicator of 2.173 (Q1), an H-index of 295.

The journal enforces rigorous peer evaluation with a publication frequency of Monthly, an annual output of approximately 422 scientific articles. In terms of accessibility and author fees, it operates under the Hybrid model with an estimated APC of $3,798 USD. It serves as a benchmark publication platform for academics, researchers, and doctoral candidates seeking global research visibility.

Publishing & Editorial Information

Detailed publisher, peer-review turnaround, and publication cycle specifications

Open Access Model
Hybrid
Publisher
Elsevier Inc.
Publication Language
English
Frequency
Monthly
Founding Year
1975
Indexing & Databases
SCIEScopusPubMed
Editorial Address
ELSEVIER SCIENCE INC, 360 PARK AVE SOUTH, NEW YORK, USA, NY, 10010-1710

Similar Journals in Discipline

Journals in the same research field with comparable impact metrics

Record UUID: 7d388902-454e-426d-bee0-90000c908606
Database Updated: 2026-10-16