Richard Francis Xavier Casten (born November 1, 1941) is an American nuclear physicist. He serves as the D. Allan Bromley Professor Emeritus of Physics at Yale University, where he was also the director of the Wright Nuclear Structure Laboratory from 1995 to 2008.[1] He is known for his research in nuclear structure and radioactive nuclear beams.[2] He is also known for Casten's triangle, which was introduced in 1981.[3]
Early life and education
Casten was born on November 1, 1941, in New York City.[4] His father was a Jewish surgeon from New York and his mother was a Catholic homemaker. Casten was raised in Manhattan and attended the Quaker Friends Seminary, where he took chemistry classes and decided to pursue physics.[5]
Wishing to get out of the city, Casten enrolled at the College of the Holy Cross as a physics major and became a member of its honors program. The college's focus on a liberal arts education allowed him to take courses in history and philosophy, which he later recalled as having "an effect on my whole research career".[5] He graduated from Holy Cross with a Bachelor of Science (B.S.), magna cum laude, in 1963.[6][7]
Casten went to the Los Alamos National Laboratory (LANL) for additional postdoctoral research from 1969 to 1971. Thereafter, he became a physicist at the Nuclear Structure Group of the Brookhaven National Laboratory from 1971 to 1981, then a senior scientist from 1981 to 1997.[4] Casten was the group leader of the Nuclear Structure Group from 1981 to 1996.[6] In 1995, he assumed a position as the director of the A. W. Wright Nuclear Structure Laboratory (WNSL) at Yale University and was made a professor of physics that same year.[4][5] He stepped down as director of the laboratory in 2008.[9] In the summer of 2011, WNSL's accelerator was shut down.[12]
Casten was a full professor at Yale until 2008, when he received the appointment as the university's D. Allan Bromley Professor of Physics. He served in that capacity until 2015, when he retired with emeritus status.[4][13] As a professor, Casten taught graduate courses in introductory and advanced nuclear physics.[14] He has been an associate editor for Physical Review C for experimental nuclear structure. He held visiting positions at the Institut Laue–Langevin, at the University of Cologne's Institute for Nuclear Physics, at the CERN/ISOLDE facility,[9] and at Stony Brook University.[2] He chaired the United States Department of Energy's Nuclear Science Advisory Committee (NSAC) from 2003 to 2005, and was also chair of the American Physical Society's Division of Nuclear Physics (DNP) in 2008 and of the FRIB Science Advisory Committee from 2009 to 2012.[9]
In 2009, Casten received the Mentoring Award from the Nuclear Physics Section of the APS for "his outstanding commitment to mentoring women in nuclear science and preparing them for leadership roles".[17] In 2011, he received the Tom W. Bonner Prize in Nuclear Physics "for providing critical insight into the evolution of nuclear structure with varying proton and neutron numbers and the discovery of a variety of dynamic symmetries in nuclei".[9][18][19]
Selected publications
Articles
Warner, D. D.; Casten, R. F. (1983). "Predictions of the interacting boson approximation in a consistent Q framework". Physical Review C. 28 (4): 1798–1806. Bibcode:1983PhRvC..28.1798W. doi:10.1103/PhysRevC.28.1798.
Motobayashi, T.; Ikeda, Y.; Ieki, K.; Inoue, M.; Iwasa, N.; Kikuchi, T.; Casten, R. F. (1995). "Large deformation of the very neutron-rich nucleus 32Mg from intermediate-energy Coulomb excitation". Physics Letters B. 346 (1–2): 9–14. Bibcode:1995PhLB..346....9M. doi:10.1016/0370-2693(95)00012-A. (over 950 citations)
Cejnar, Pavel; Jolie, Jan; Casten, Richard F. (2010). "Quantum phase transitions in the shapes of atomic nuclei". Reviews of Modern Physics. 82 (3): 2155–2212. Bibcode:2010RvMP...82.2155C. doi:10.1103/RevModPhys.82.2155.
Books
Nuclear Structure from a Simple Perspective. Oxford Studies in Nuclear Physics, 23. Oxford University Press. 1990.[20] Casten, R.; Casten, Richard F. (2000). 2nd edition. Oxford University Press. ISBN0-19-850724-0.
as editor: Algebraic approaches to nuclear structure: interacting boson and fermion models. Contemporary Concepts in Physics, volume 6 (1st ed.). CRC Press. 1993. ISBN978-3718605385. Castenholz, A. (2020). e-book. CRC Press. ISBN9781000159462.[21]
^Moszkowski, Steven (1991). "Review of Nuclear Structure from a Simple Perspective by Richard F. Casten". Physics Today. 44 (11): 91–92. Bibcode:1991PhT....44k..91C. doi:10.1063/1.2810324.