Skip to main content
U.S. flag

An official website of the United States government

Dot gov

Official websites use .gov
A .gov website belongs to an official government organization in the United States.


Secure .gov websites use HTTPS
A lock ( ) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.

Thomas R. Gentile

Research Interests

Development and application of polarized 3He-based neutron spin filters to neutron scattering and fundamental neutron physics. Experiments in fundamental neutron physics, in particular photon detection for neutron radiative decay.

Professional Experience

1996 - present: Physicist, Neutron Physics Group, Physical Measurement Laboratory

1993 - 1996: Physicist, Detector Metrology Group, Radiometric Physics Division, Physics Laboratory

1990 - 1992: California Institute of Technology, Pasadena, CA Research fellow, Kellogg Radiation Laboratory

Associated Research Experience and Educational Experience

1990: Ph.D. in Physics, Massachusetts Institute of Technology, Cambridge, MA. Thesis advisor: Prof. Daniel Kleppner. Title: Microwave Spectroscopy and Atom-Photon Interactions in Rydberg States of Calcium

1979: State University of New York at Stony Brook, Stony Brook, NY. B.S. in Physics with high honors, John S. Toll prize to Outstanding Physics Senior

Awards and Professional Affiliations

  • 2011 NIST Allen V. Astin Award
  • Fellow, American Physical Society
  • Executive Committee, APS Topical Group on Precision Measurements and Fundamental Constants

Publications, talks, and external support

  • Approximately 125 publications and conference proceedings, and approximately 40 invited talks


Study of the neutron spin-orbit interaction in silicon

Thomas R. Gentile, Michael G. Huber, Muhammad D. Arif, Daniel S. Hussey, David L. Jacobson, Donald D. Koetke, Murray Peshkin, Thomas Dombeck, Paul Nord, Dimitry A. Pushin, Robert Smither
The neutron spin-orbit interaction, which results from the interaction of a moving neutron's magnetic dipole moment (MDM) with the atomic electric elds, induces

Optically Polarized He3

Thomas R. Gentile, P.J. Nacher, B Saam, T G. Walker
This article reviews the physics and technology of producing large quantities fo highly spin- polarized, or hyderpolarized, He3 nuclei using spin-exchange (SEOP

aCORN: an experiment to measure the electron-antineutrino correlation coefficient in free neutron decay

Maynard S. Dewey, Fred B. Bateman, Wangchun Chen, Thomas R. Gentile, Md. T. Hassan, Michael P. Mendenhall, Jeffrey S. Nico, Brian Collett, Jim Byrne, William Byron, Guillaume Darius, Christina DeAngelis, Gordon L. Jones, Alexander Komives, Alexander Laptev, George Noid, Hyeonseo Park, Ed Stephenson, I Stern, K Stockton, Bob Trull, Fred Wietfeldt, B G. Yerozolimsky
We describe an apparatus used to measure the electron-neutrino angular correlation coefficient, a, in free neutron decay. The apparatus employs a novel

Higgs Amplitude Mode in a Two-Dimensional Quantum Antiferromagnet near the Quantum Critical Point0

Tao Hong, Masashige Matsumoto, Yiming Qiu, WangChun Chen, Thomas R. Gentile, Shannon Watson, Firas F. Awwadi, Mark M. Turnbull, Sachith E. Dissanayake, Harish Agrawal, Rasmus Toft-Petersen, Bastian Klemke, Kris Coester, Kai P. Schmidt, David A Tennant
Spontaneous symmetry-breaking quantum phase transitions play an essential role in current condensed matter physics1-3. The collective excitations in the broken
Created October 9, 2019