the 20th Anniversary of the First Tevatron Collisions

1. the 20th Anniversary of the First Tevatron Collisions http://www-cdf.fnal.gov/news/First-Tevatron-Collisions/ From 1985 to 2005 Energy from 1.6 TeV to 1.96 TeV Peak Luminosity from ~1024 cm-2s-1 to ~1.7 x 1032 cm-2s-1 Integrated Luminosity from ~0.1 mb-1 / year to ~1 fb-1 / year

2. Now Pier Oddone and his daughter Sanna in 1985

3. Robin Staffin

4. Message from Leon to the CDF collaboration: So if we define the TEVATRON as p bar p collisions, you are celebrating a great moment in Fermilab history. Wilson's vision of a superconducting machine that would reach towards one TeV and save electrical energy had been realized on July 2, 1983. Now we were after the highest collision energy, even though the colliding protons were filled with quarks, gluons, eggshells, and coffee grounds. And that success began on October 13, 1985. I recall the usual "champagne in stryrofoam cups" celebration in the Control Room, Helen running around, Alvin smiling, John Peoples ...'and, and look at the TEVATRON now! ' The highest energy, most luminous machine on the planet since then, and the next few years will bring fame even to outdo the White Sox! - Leon

5. 1984 Dzero Collaboration Meeting

6. (Paul Grannis)

7. + Jerry Terry in ~1990 • On behalf of DZero we would like to congratulate CDF and Fermilab on the twentieth anniversary of Tevatron Collisions. The Tevatron physics program has been enormously productive and successful, and we all owe a great deal of thanks to CDF for their pioneering efforts. We look forward to working with you as, together, we extend the physics reach of the Tevatron. • Yours • Jerry Blazey and Terry Wyatt

8. The First Collisions! 2 A,M., October 13, 1985 Photos from the CDF Control Room

10. John Huth Rolland Johnson Helen Edwards

11. Rick Snider

12. Bill Foster

13. Mel Shochet Richard Kadel Kuni Kondo Roy Schwitters Teruki Kamon Bob Kephart

14. Hans Jensen Leon Lederman

15. Mel Shochet Tony Liss Henry Frisch

16. Tom Droege Myron Campbell Marjorie Shapiro

17. Lee Holloway Alvin Tollestrup John Elias Kuni Kondo Roy Schwitters

18. Roy Schwitters Leon Lederman Tony Liss

19. Dee Hahn Steve Hahn John Cooper

20. Steve Holmes Cathy Newman-Holmes

21. Other members of CDF at that time

22. Poolo Sestini Franco Cervelli Rick St. Denis Aldo Menzione Lello Stefanini

23. Larry Nodulman Bob Wagner (anl)

24. Aesook Byon Bob Wagner Aseet Mukherjee

25. Giorgio Bellettini Luciano Ristori Franco Bedeschi Giovanni Punzi Giorgio Chiarelli

26. Shinhong Kim

27. Tom Devlin Morris Binkley Dino Goulianos Art Garfinkel Lee Pondrom Bill Carithers

28. Dan Amidei Luc Demortier

29. Barb Perington Carol Picciolo JJ Rich Krull

30. How did the rest of us look?

31. Dick Adamo Rich Meadowcroft Roger Dixon Mark Schmitz Jim Jensen Chicago Marathon Runners Oct 31, 1985

32. Jim Morgan in Linac, 1986. He started at Fermilab summer 1986 as Operator.

33. David McGinnis 20 years ago? He aged faster than the rest of us!

34. Sergei Nagaitsev in 1986 after he got back from the Soviet Army (1984-6).

35. Vicky White

36. Harry Weerts

37. Ed Temple

38. In 1985, theorists Eichten, Hinchliffe, Lane and Quigg were hanging around Aspen, attempting to impress girls by reading them excerpts from the EHLQ report.

39. In 1985, theorist Joe Lykken was working at Los Alamos, on the ultra-top-secret project known as "The String Bomb".

40. Marcela Carena

41. Lina Galtieri who joined CDF in 1986.

42. Avi Yagil

43. Ted Liu. Nice hair!

44. Prom night (Robin Erbacher)

45. Peter Skands

46. Taka Maruyama

47. Chris Hays

48. Cheng-Ju Lin

49. Eiko Yu

50. He was already thinking of all the fun that we would be having for the next 20 years! Someone out there right now is grinning just as broadly in anticipation of our next 20 years of fun and success at LHC and ILC. Bo Jayatilaka