# Presentation: 575887

## My Scientific Career

**Art Poskanzer**

## Harvard '53

## LASL 1953

- 1953

**Purified one gram of**** 241****Am**
**Most of the world's supply**
**Several curies**
**60 keV radiation**
**Beautiful colors**

## Columbia '54

## MIT '57

**Thesis in Phys. Chem.: "The Solvent Extraction of Inorganic Complexes"**

- 1970

**Glenn Seaborg and Charles Coryell**

- Died in 1971 at age 59

**Nuclear Chem. Gordon Conf. '53**
**Postdoc of Linus Pauling**
**3 vol. book: Manhattan Project work on fission products**
** ****Students discovered promethium**
**Renaissance Man**

**Other students:**
**     ****John Alexander 1/2 yr. before**
**     ****Mort Kaplan 2 1/2 yr. after**

## First Paper 1960

**A Summary of TTA Extraction Coefficients**

**Heino Nitsche: still uses it**

**TTA = thenoyltrifluoroacetone**

## Brookhaven 1957-66

**Gerhart Friedlander**

**first mentor**

**Spallation of Al and U**
**Cross sections**
**Differential studies**
**Exotic Nuclei**
**Beta-delayed proton emitters**
**Beta-delayed neutron emitters**

**Z**

**N**

- 1969

## 8He

**8****He**

- 1965

**10,000 decays**
**Half-life to 1%**

## Berkeley 1966-

- 1973

**Earl Hyde**

**second mentor**

- Died 1997 at age 77

## Bevatron

**Bevatron**

**Proton - nucleus reactions**
**Light fragment yields**

## 11Li

**11****Li**

- 1966

## LAMPF 1968 - 74

**Thin Target Area**

**B**

**A**

## Nuclear Chemistry Gordon Conference

**First attended in 1954**
**Poskanzer Rule**
**Chair in 1970**
**Included physicists**

- 1957

## Orsay 1970-71

- 1973

**CERN Proton Synchrotron**
**On-line mass spectrometer**
**Direct mass measurements**
**New region of deformation****	**

**Robert Klapisch**

## NAS Panel 1976

**Friedlander Panel on the Future of Nuclear Science**

**            ****Dirk Walecka          Art           George Bertsch      Bob Stockstad    Gery Garvey Harry Gove  Herman Feshbach    Gerhart              Louis _x0008_Rosen      John Schiffer  **

- 1976

## American Chemical Society

- 1980

**Div. Nucl. Chem. & Tech.**
**Chair 1977**
**Nucl. Chem. Award 1980**

## Scientific American

**Jef Poskanzer**

- 1978

**Exotic Light Nuclei**

**with Joe Cerny**

## Nuclides

**Proved not to exist:**
**16****B**** **
**13****Be**** **
**12****Li**
**10****Li**
**  ****5****H**

**Discovered:**
**227****Fr**
**228****Fr**
**145****Cs**
**146****Cs**
**98****Sr**
**99****Rb**
**41****Ti**
**37****Ca**
**51****K**
**50****K**

**49****K**
**48****K**
**33****Ar**** **
**39****P**
**34****Al**
**32****Mg**
**31****Mg**
**33****Na**
**32****Na**
**27****Ne**

**13****O**
**17****C**
**17****B**
**15****B**
**14****B**
**14****Be**
**12****Be**
**11****Li**

**First observed decay:**
**145****Cs****	****ß**
**146****Cs****	****ß**
**98****Sr****	****ß**
**99****Rb****	****ß**
**41****Ti****	****	****p**
**37****Ca****	****p**
**33****Ar****	****p**** **
**32****Na****	****ß**
**13****O****	****	****p**
**8****He****	****	****n**

**First mass measurement:**
**32****Na**** **
**31****Na**
**30****Na**
**29****Na**
**28****Na**
**27****Na**
**11****Li**

## Bevalac 1975 - 93

**GSI-LBL Collaboration**
**July 1974**
**Central Collisions**
**Fireball model**
**Coalescence**

**Users' Association 1973 **
**Seminars 1975**
**Scientific Proposal 1975**
**Summer Study 1978**
**Scientific Director 1978 - 79**

## Plastic Ball 1980 - 90

**Collective Flow**
**Squeeze-out**

- 1983

**                               ****Herbert Loehner  Hans-Ake Gustafsson  Bernhard Ludewigt  Hans Gutbrod  me**
**                                                   ****Tim Renner   Tony Warwick  Karl-Heinz Kampert**
**Hans-Georg Ritter  Mohan Doss  Howard Wieman  Burhard Kolb**

**Others:**
**Per Kristansson**
**Michael Maier**
**Hubertus Riedesel**
**Rainer Schicker**
**Rudi Schmidt**
**Helmuth Spieler**
**Friedeman Weik**

## CERN

**ISOLDE****	****1979 - 80**
**WA80****	****	****1986 - 87**
**NA49****	****	****1995 - 96**

## WA80 1980 - 90

**CERN HI Program**
**PS190 in 1980**
**RFQ**
**Mid-rapidity**
**calorimeters**

- 1987

## (NA35) NA49 1991 -

**Peter Seyboth and Reinhart Stock**

- 1996

**Electronics funded 1992**
**Deputy Spokesman 1992 - 98**
**Directed and Elliptic Flow **

## RNC Group 1990 - 95

- 1990

**Formed 5 Feb 90**

**James Symons    John Harris**

## STAR

**Art Poskanzer**

**Planning starts****	****	****1989**
**LOI****	****	****	****	****1990**
**First coll. meet.****	****	****1991**
**Deputy Spokesman****	****	****1991-92**
**Approved****	****	****	****1991**
**Funded****	****	****	****1993**
**First paper****	****	****	****2001**
**Elliptic Flow**

- 2000

**Raimond Snellings     Sergei Voloshin**

## QM’95

**Logo: Harold Poskanzer**

**Lucille Poskanzer**** Companion's program**

## Discovery

**The feeling of discovery**
**Great fun**
**Changed fields often**
**Summarized results**

## Restaurant Guide 1980 -

**Contents:****	****	****Lucille**
**Cover:****	****	****Harold**
**Production:****	****Art**

- 1985