Lee Grodzins (July 10, 1926 – March 6, 2025) was an American physicist and inventor who was a longtime professor of physics at the Massachusetts Institute of Technology (MIT)."Lee Grodzins", MIT faculty directory, September 11, 2015, accessed July 6, 2016Miller, Sandi. "Professor Emeritus Lee Grodzins, Pioneer in Nuclear Physics, Dies at 98", MIT News, March 20, 2025 After work as a researcher at Brookhaven National Laboratory, Grodzins joined the faculty of MIT, where he taught physics for nearly four decades. He is known for his participation in the 1957 experiment that measured the helicity of the neutrino. He was also head of research and development for Niton Corporation, which developed devices to detect dangerous contaminants and contraband. He wrote more than 170 technical papers and held more than 60 US patents.

Early life and education Grodzins was born in Lowell, Massachusetts, the son of David Melvin Grodzins and his wife Taube Grodzins, Jewish emigrants, with roots in Poland and Grodno, Belarus.Kawasaki, Guy. "Ethel Grodzins Romm" in Hindsights: The Wisdom and Breakthroughs of Remarkable People, Beyond Words Publishing (1994) pp. 11–17 The family settled in Manchester, New Hampshire, where his father ran a gas station and a used tire business. He graduated with a BS degree in engineering in 1946 from the University of New Hampshire."Board of Directors and Executive Advisory Board", Cornerstones of Science, accessed July 7, 2016 He began his career with General Electric as an assistant in the nuclear physics group at their research laboratory in Schenectady, New York, and earned his master's degree from Union College.

Grodzins earned his PhD in physics at Purdue University in 1954;Grodzins, Lee. "A cloud chamber study of the single scattering of 2.5 MeV positrons by gold nuclei", Purdue University, 1954, accessed August 25, 2021 his thesis was titled "A Cloud Chamber Study of the Single Scattering of 2.5 MeV Positrons by Gold Nuclei". He taught for a year afterwards at Purdue."Lee Grodzins: Honorary Degree Recipient", Purdue University, July 31, 2014, accessed July 7, 2016

Career and research

From 1955 to 1958, Grodzins was a researcher with the nuclear physics group at Brookhaven National Laboratory, probing the properties of the nuclei of atoms. In 1956 he married a biologist whom he met at Brookhaven, Lulu (1929–2019)."Lulu A. Grodzins", The Boston Globe, March 24, 2019, accessed August 25, 2021 The same year, together with Maurice Goldhaber and , Grodzins performed the Goldhaber experiment, which determined that neutrinos have negative helicity. This work was important in our understanding of the weak interaction. Grodzins joined the faculty of the physics department of MIT in 1959 and was a professor of physics there from 1966 to 1998. In 1985, he carried out the first computer axial tomographic experiment using synchrotron radiation, among other important research projects during his years at MIT.

In 1987, he co-founded and led research and development at Niton Corporation, which developed, manufactured and marketed test kits and instruments to measure radon gas in buildings and toxic elements, such as lead.Thomson, Elizabeth A. "Lead detector wins R&D award", MIT News, December 13, 1995, accessed July 12, 2016 There he also developed handheld devices that use X-ray fluorescence to determine the composition of metal alloys and to detect other materials. In 1998, he left MIT to work full-time directing the R&D group at Niton, and in 2005, he and his family sold Niton."Thermo Electron buys Niton for $40.5M", Boston Business Journal, March 30, 2005, accessed July 7, 2016; and "Thermo Scientific NITON® XRF Analyzers", Thermo Scientific, 2007, accessed July 7, 2016 His sister Ethel Grodzins Romm was the president and CEO of Niton, followed by his son Hal."Niton receives award for 2003", Stainless Steel World, July 16, 2003 Grodzins also developed devices to detect explosives, drugs and other contraband in luggage and cargo containers. Four of his devices earned R&D 100 awards, given annually by R&D Magazine to the 100 most innovative technical products in the US."Innovation award recognises Niton alloy analyser", Tradelink Publications, October 7, 2008

Grodzins wrote more than 170 technical papers and held more than 60 US patents.Kane, Debbie. "A Life Driven by Curiosity", UNH Today, November 28, 2017, accessed August 25, 2021; and American Men & Women of Science, 19th Issue, 1995–96 Volume 3. G-I RR Bowler, New Providence, New Jersey (1994), (Volume 3), (complete works), S. 415 He was a Guggenheim Fellow in 1964–65 and in 1971–72, and a Senior Alexander von Humboldt Fellow in 1980–81. He was a Fellow of the American Physical Society and the American Academy of Arts and Sciences. He received an honorary Doctor of Science degree from Purdue University in 1998, among other honors and awards. He was a founding member of the Union of Concerned Scientists and chaired it in 970 and 1972. In 1999, he founded Cornerstones of Science, a public library initiative to help children and adults explore science and served as its president; among its projects was the supply of telescopes to libraries and astronomy clubs in the US. MIT named the Lee Grodzins Postdoctoral Fellows Lecture Award for him."The Lee Grodzins Post-Doctoral Award", 2016, accessed July 7, 2016

Personal life and death His sister Anne Grodzins Lipow was a librarian and library science expert,"Lipow, Anne Grodzins", Obituary, SFGate.com, September 12, 2004, accessed July 12, 2016 and his sister Ethel was an author, project manager, CEO and co-chair of the Lyceum Society of the New York Academy of Sciences."The Workmen's Circle to Honor Activists Ethel Grodzins Romm & Joe Romm at 2016 Winter Benefit", BroadwayWorld.com, October 20, 2016 His nephew is climate writer Joseph Romm.Obituary: Ethel Grodzins Romm, Times Herald-Record, December 4, 2021

Grodzins was married to Anderson for 62 years until her death in 2019; the couple had two sons. Grodzins died in Weston, Massachusetts, on March 6, 2025, at the age of 98.

References

External links Grodzins describes Cornerstones of Science's vision (2015) Grodzins on C-Span (1996; testimony begins at 1:14:39)