slide1
Download
Skip this Video
Download Presentation
Medical Physics before the Millennium A Personal Experience Franca T. Kuchnir, PhD, FAAPM

Loading in 2 Seconds...

play fullscreen
1 / 32

Medical Physics before the Millennium A Personal Experience Franca T. Kuchnir, PhD, FAAPM - PowerPoint PPT Presentation


  • 91 Views
  • Uploaded on

Medical Physics before the Millennium A Personal Experience Franca T. Kuchnir, PhD, FAAPM Associate Professor Emerita The University of Chicago Department of Radiation and Cellular Oncology April 27, 2013. Sealed glass Radon applicators. 1951. 1953.

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

PowerPoint Slideshow about ' Medical Physics before the Millennium A Personal Experience Franca T. Kuchnir, PhD, FAAPM' - erin-parsons


An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript
slide1

Medical Physics before the Millennium

A Personal Experience

Franca T. Kuchnir, PhD, FAAPM

Associate Professor Emerita

The University of Chicago

Department of

Radiation and Cellular Oncology

April 27, 2013

slide3

1951

1953

Argonne Cancer Research Hospital (ACRH)

(AttachedtoBillingsHospital)

slide4

Dr. Kerst with the 2.5 and 22 MeV betatrons

(at the University of Illinois)

slide6

Kerst and Skaggs with the doughnut.

Skaggs points at the electron beam exit port.

Med. Phys. 2, p297,1975

slide7

22-MV beam characteristics

Am. J. Roegenology, Radium Ther. v.60 p.153, 1948

7

slide8

Isodose Distributions

22-MV beam

9cm dia. at 75 cm

Am. J. Roegenology, Radium Ther. v.60 p.153, 1948

slide10

Lanzl, Skaggs, Machinist

Dr Carpenter, Therapist, Patient, Lanzl

2,000-Ci Isocentric Co-60 unit, SAD = 80cm.

slide11

Controls and Lead Glass

Lanzl Co-60 unit

and dose plotting device

Observation Window

2,000-Ci Co-60 unit

slide12

2-MV Van de Graaff

Patient set up

Controls and Lead Glass Viewing Window

slide13

Text

Dr. Henry Kaplan showing the insides of

the 6-MeV lineac developed to treat cancer

The first patient treated with electrons

for retinoblastoma in 1957

Stanford University’s First Medical Lineac

slide17

Skaggs at the Lineac controls

Therapist, Dr. Mel Griem, Physics Tech.

Routine operation of the Lineac required both a physics and a therapy technician.

slide19

2D Isodose Hand Calculation

Fletcher’s Textbook of Radiotherapy

slide20

2D Compensator

Fletcher’s Textbook of Radiotherapy

slide21

vvv

Relative Biologic Effectiveness

RBE = 4

Oxygen Enhacement Ratio

Eric J. Hall’s textbook “Radiobiology for the Radiologist”

slide22

vvv

Neutrons time of flight spectra

slide23

ACRH neutron facility floor plan

Radiology, v.111, p.471, 1974

slide27

Relative Biological Effectiveness

Oxygen Enhancement Ratio

Radiobiology for the Radiologist by Eric J. Hall

slide29

vvv

Neutrons difference spectra

Phys. Med. Biol. v. 24, p. 721, 1979

slide30

vvv

Solutions for k(E).K(E)

30

Phys. Med. Biol. v. 24, p. 721, 1979

slide31

vvv

Solutions for k(E)

Phys. Med. Biol. v. 24, p. 721, 1979

slide32

“They shall beat their swords into plowshares.”

(Isaiah 2:4, Joel 3:10, Micah 4:3)

ad