• About Us
  • FAQ
  • Staff
  • Mission and History
  • Site Map
  • Site Tour
  • Use Policy
  • Legal Policy
  • Privacy Policy
  • Annenberg Foundation
    • Annenberg Space for Photography
    • Explore.org
    • Funding
• Video Series
  • Video Programs
    • View All
    • Arts
      • Grade K-2
      • Grade 3-5
      • Grade 6-8
      • Grade 9-12
      • College/Adult
      • Discipline Page
    • Foreign Language
      • Grade K-2
      • Grade 3-5
      • Grade 6-8
      • Grade 9-12
      • College/Adult
    • Literature & Language Arts
      • Grade K-2
      • Grade 3-5
      • Grade 6-8
      • Grade 9-12
      • College/Adult
      • Literature Discipline Page
      • Language Arts Discipline Page
    • Mathematics
      • Grade K-2
      • Grade 3-5
      • Grade 6-8
      • Grade 9-12
      • College/Adult
      • Mathematics Discipline Page
    • Science
      • Grade K-2
      • Grade 3-5
      • Grade 6-8
      • Grade 9-12
      • College/Adult
      • Science Discipline Page
    • Social Studies & History
      • Grade K-2
      • Grade 3-5
      • Grade 6-8
      • Grade 9-12
      • College/Adult
      • Social Studies & History Discipline Page
    • VoD/Broadband FAQ
  • Purchase
    • View Catalog (PDF)
    • Request Print Catalog
    • Purchase FAQ
    • Order Status
    • Purchase Order Application
    • Regional Sales Reps
    • International Orders
    • Broadcast Rights
    • Discontinued Series
    • Customer Service
  • Discontinued Series
• Professional
  Development
  • Graduate Credit
  • List of Courses
  • Facilitator Guide
  • Course FAQ
• Course &
  Video Licensing
  • Free vs. License
  • Broadcast
  • Distance Learning
  • Digital License
  • Collection License
  • Discontinued Series
• Lesson Plans
  • View All
  • Arts
    • Grade K-2
    • Grade 3-5
    • Grade 6-8
    • Grade 9-12
    • College/Adult
    • Discipline Page
    • ALL
  • Foreign Language
    • Grade K-2
    • Grade 3-5
    • Grade 6-8
    • Grade 9-12
    • College/Adult
    • ALL
  • Literature & Language Arts
    • Grade K-2
    • Grade 3-5
    • Grade 6-8
    • Grade 9-12
    • College/Adult
    • Discipline Page
    • ALL
  • Mathematics
    • Grade K-2
    • Grade 3-5
    • Grade 6-8
    • Grade 9-12
    • College/Adult
    • Discipline Page
    • ALL
  • Science
    • Grade K-2
    • Grade 3-5
    • Grade 6-8
    • Grade 9-12
    • College/Adult
    • Discipline Page
    • ALL
  • Social Studies & History
    • Grade K-2
    • Grade 3-5
    • Grade 6-8
    • Grade 9-12
    • College/Adult
    • Discipline Page
    • ALL
• Interactives
  • View All
    • Student
    • Teacher/Adult
  • Arts
    • Grade K-2
    • Grade 3-5
    • Grade 6-8
    • Grade 9-12
    • College/Adult
    • ALL
  • Foreign Language
    • Grade K-2
    • Grade 3-5
    • Grade 6-8
    • Grade 9-12
    • College/Adult
    • ALL
  • Literature & Language Arts
    • Grade K-2
    • Grade 3-5
    • Grade 6-8
    • Grade 9-12
    • College/Adult
    • ALL
  • Mathematics
    • Grade K-2
    • Grade 3-5
    • Grade 6-8
    • Grade 9-12
    • College/Adult
    • ALL
  • Science
    • Grade K-2
    • Grade 3-5
    • Grade 6-8
    • Grade 9-12
    • College/Adult
    • ALL
  • Social Studies & History
    • Grade K-2
    • Grade 3-5
    • Grade 6-8
    • Grade 9-12
    • College/Adult
    • ALL
• News & Blog
  • Learner Log Blog
  • New Releases
  • Monthly Updates
    • Signup
  • @Social
    • Facebook
    • Twitter
    • Pinterest
    • YouTube
    • Google+

Unit 9: Biophysics

Extra #2: Pencil Beam Scanning

Ethan Cascio and Harald Paganetti describe pencil beam scanning—their proton therapy research, which will change the way of delivering a therapeutic beam of radiation to the patient.

Video Transcript

• About This Course
• Using This Site
• Course FAQ
• Course Site Map
• Credits
•