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Company · Palo Alto · United States

Varian Medical Systems (United States)

In research, Varian Medical Systems (United States) stands highest in Physical Sciences (#1,393 of 21,541 worldwide), Engineering (#2,024 of 11,412 worldwide) and Physics and Astronomy (#740 of 3,663 worldwide), over all time.

varian.comROR OpenAlex
World rank, 2022–2025
#11,237
of 28,054 · #1,957 all time
Rank in United States
#1,525
of 4,192
Research works
2.5k
▼ 11% vs 2013–17
Citations
55k
21.7 per fractional work
Top-10% rate
15.9%
record average 16.5%
Open access
13%
world 28%

What is Varian Medical Systems (United States) known for in research?

The fields where it stands highest, over all time, ranked among every institution above the floor in each field.

FieldWorld rankWhere that sitsTop-10% rateWorks
Physical SciencesDomain #1,393 of 21,541 21.6%2,031
EngineeringField #2,024 of 11,412 18.4%979
Physics and AstronomyField #740 of 3,663 21.2%572
Electrical and Electronic EngineeringSubfield #1,273 of 4,248 16.9%579
Life SciencesDomain #4,673 of 14,347 31.1%137
SpectroscopySubfield #337 of 889 37.3%134
Atomic and Molecular Physics, and OpticsSubfield #766 of 1,908 16.6%336
MedicineField #7,372 of 17,978 22.4%259
Materials ScienceField #1,858 of 4,504 23.5%155
Health SciencesDomain #8,844 of 20,462 22.1%273

Each strip is that field’s whole ranked pool, with the notch where Varian Medical Systems (United States) sits in it, in the colour of the band that rank falls in. The track under the rate is the rate itself: it carries no world mark, because the world rate differs by field (from about 6% to 21% in this record).

Field profile

Location quotient across every field it publishes in: outside the ring is more than an institution of this size would be expected to publish, inside it is less.

Agricultural and Biological Sciences: 0.39× its world share, 2 worksAgricultural and Bio…Biochemistry, Genetics and Molecular Biology: 0.74× its world share, 4 worksBiochemistry, Geneti…Immunology and Microbiology: 0.85× its world share, 1 worksImmunology and Micro…Neuroscience: 0.51× its world share, 1 worksNeuroscienceComputer Science: 0.31× its world share, 2 worksComputer ScienceEarth and Planetary Sciences: 0.03× its world share, 0 worksEarth and Planetary …Engineering: 0.56× its world share, 8 worksEngineeringEnvironmental Science: 0.43× its world share, 2 worksEnvironmental ScienceMaterials Science: 0.12× its world share, 0 worksMaterials SciencePhysics and Astronomy: 6.67× its world share, 15 worksPhysics and AstronomyDentistry: 1.73× its world share, 1 worksDentistryHealth Professions: 1.55× its world share, 4 worksHealth ProfessionsMedicine: 2.27× its world share, 44 worksMedicineArts and Humanities: 1.28× its world share, 4 worksArts and HumanitiesBusiness, Management and Accounting: 1.08× its world share, 4 worksBusiness, Management…Decision Sciences: 1.37× its world share, 1 worksDecision SciencesEconomics, Econometrics and Finance: 1.02× its world share, 2 worksEconomics, Econometr…Psychology: 0.24× its world share, 1 worksPsychologySocial Sciences: 0.34× its world share, 4 worksSocial Sciences1×world share
more than its size predictsabout as predictedless

Rings at 0.5×, 1× and 2×. Widest outward: Physics and Astronomy, 6.7×. Every wedge is a field page.

Who are the top researchers at Varian Medical Systems (United States)?

Ranked on the composite score, James Ν. Shoolery, Frank Yang and H. Jory lead among researchers whose main affiliation is Varian Medical Systems (United States).

  1. 1 James Ν. Shoolery United States · #73,785 worldwide 267 citations · 32 works
  2. 2 Frank Yang United States · #124,478 worldwide 191 citations · 23 works
  3. 3 H. Jory United States · #226,811 worldwide 54 citations · 29 works
  4. 4 G. F. Virshup United States · #334,690 worldwide 131 citations · 32 works
  5. 5 H. C. Hamaker United States · #394,341 worldwide 101 citations · 26 works
  6. 6 Ronald E. Majors United States · #460,826 worldwide 61 citations · 17 works
  7. 7 L. W. James United States · #468,487 worldwide 55 citations · 15 works
  8. 8 H. Mostafavi United States · #491,996 worldwide 38 citations · 19 works
  9. 9 L. V. jun United States · #495,452 worldwide 1 citations · 28 works
  10. 10 C. B. Cooper United States · #496,045 worldwide 122 citations · 25 works
All ranked researchers at Varian Medical Systems (United States)

Which keywords describe research at Varian Medical Systems (United States)?

By fractional works in 2022–2025, weighted toward what it does more of than the world: Dosimetry, Monte Carlo Simulation, Image-Guided Radiotherapy, Radiotherapy Physics, Radiotherapy, Clinical Applications, Particle Therapy and Proton Therapy.

▲ more of its work than of the world’s◆ about the world’s share▼ less than the world’s

Size is fractional works in 2022–2025 in the topics tagged with each word; colour is the word's share of this institution's work against its share of the world's. The 40 words are chosen for being large and distinctive. Each links to the topic it comes from most.

All 40 words, with their numbers
  1. Dosimetry14▲ 198×2 topics
  2. Monte Carlo Simulation13▲ 66×2 topics
  3. Image-Guided Radiotherapy13▲ 309×1 topic
  4. Radiotherapy Physics13▲ 309×1 topic
  5. Radiotherapy8▲ 22×9 topics
  6. Clinical Applications5▲ 77×2 topics
  7. Particle Therapy5▲ 189×1 topic
  8. Proton Therapy5▲ 189×1 topic
  9. Chemotherapy4▲ 5.6×11 topics
  10. Cancer Treatment4▲ 15×6 topics
  11. Medical Imaging4▲ 7.0×6 topics
  12. Cancer3▲ 2.5×6 topics
  13. Radiation Therapy3▲ 26×2 topics
  14. Immunotherapy3▲ 4.6×8 topics
  15. Clinical Practice Guidelines3▲ 5.9×7 topics
  16. Dual-Energy CT3▲ 70×1 topic
  17. Material Differentiation3▲ 70×1 topic
  18. Precision Medicine3▲ 6.5×3 topics
  19. Cancer Risk3▲ 12×3 topics
  20. Imaging3▲ 11×1 topic
  21. PET/CT3▲ 48×1 topic
  22. Radiation Exposure3▲ 26×2 topics
  23. Molecular Classification2▲ 16×2 topics
  24. Computed Tomography2▲ 51×1 topic
  25. Diagnostic Imaging2▲ 21×1 topic
  26. Genetic Variants2▲ 13×2 topics
  27. Prostate Cancer2▲ 18×3 topics
  28. Survival Analysis2▲ 8.3×3 topics
  29. Texture Analysis2▲ 10.0×2 topics
  30. Feature Extraction2▲ 4.9×2 topics
  31. Magnetic Resonance Imaging2▲ 8.7×6 topics
  32. Medical Education2▲ 8.3×2 topics
  33. Quantitative Analysis2▲ 11×1 topic
  34. Radiomics2▲ 18×1 topic
  35. Global Access2▲ 23×1 topic
  36. Health Economics2▲ 41×1 topic
  37. Screening2▲ 21×2 topics
  38. Cervical Cancer2▲ 18×2 topics
  39. Gleason Grading2▲ 47×1 topic
  40. MRI Imaging2▲ 23×1 topic

Which research topics does Varian Medical Systems (United States) publish most on?

By volume in 2022–2025: Advanced Radiotherapy Techniques, Radiation Therapy and Dosimetry, Advanced X-ray and CT Imaging and Medical Imaging Techniques and Applications.

Advanced Radiotherapy Te…13Advanced Radiotherapy Techniques: 13 fractional worksRadiation Therapy and Dosimetry: 5 fractional worksAdvanced X-ray and CT Imaging: 3 fractional worksMedical Imaging Techniques and Applications: 3 fractional worksRadiation Dose and Imaging: 2 fractional worksRadiomics and Machine Learning in Medical Imaging: 2 fractional worksAdvances in Oncology and Radiotherapy: 2 fractional worksProstate Cancer Diagnosis and Treatment: 2 fractional worksLung Cancer Diagnosis and Treatment: 2 fractional worksEndometrial and Cervical Cancer Treatments: 2 fractional works
RadiationPulmonary and Respiratory MedicineBiomedical EngineeringRadiology, Nuclear Medicine and Imaging1 others

Area is fractional works; colour is the subfield each topic belongs to.

  1. 1 Advanced Radiotherapy Techniques Radiation 13 works
  2. 2 Radiation Therapy and Dosimetry Pulmonary and Respiratory Medicine 5 works
  3. 3 Advanced X-ray and CT Imaging Biomedical Engineering 3 works
  4. 4 Medical Imaging Techniques and Applications Radiology, Nuclear Medicine and Imaging 3 works
  5. 5 Radiation Dose and Imaging Radiology, Nuclear Medicine and Imaging 2 works
  6. 6 Radiomics and Machine Learning in Medical Imaging Radiology, Nuclear Medicine and Imaging 2 works
  7. 7 Advances in Oncology and Radiotherapy Radiology, Nuclear Medicine and Imaging 2 works
  8. 8 Prostate Cancer Diagnosis and Treatment Pulmonary and Respiratory Medicine 2 works
  9. 9 Lung Cancer Diagnosis and Treatment Pulmonary and Respiratory Medicine 2 works
  10. 10 Endometrial and Cervical Cancer Treatments Obstetrics and Gynecology 2 works

How open and international is its research?

Against the world’s own shares — the tick on each track. Both are shares of its output, so they sit on one scale and can be read against each other as well as against the world.

openly available12.6%not open87.4%

World: 28% of research is openly available.

with international co-authors11.6%domestic only88.4%

World: 19% is written across borders.

How has Varian Medical Systems (United States)'s research output changed?

Output in 2018–2022 was 11% lower than in 2013–2017.

1990200020102020
grewheldshrank

The same series as a ribbon — one cell per year, darker for more. The line above answers how much; this answers when.

Other research institutions in Palo Alto

All research institutions in Palo Alto

Research measures only: rankings here say nothing about teaching, admissions or student experience. Comparable institutions and collaboration partners are in the interactive view on the map.