Te Velthuis is originally from
Heerlen, where she was born in 1968. She has a master's degree in applied physics from the
Eindhoven University of Technology, received in 1993, with a thesis supervised by Wim J. M. de Jonge. She completed a Ph.D. in 1999 at the
Delft University of Technology in The Netherlands, with the dissertation
Phase Transformations in Steel – A Neutron Depolarization Study, promoted by Sybrand van der Zwaag and M. Theo Rekveldt. She joined the Argonne National Laboratory in 1999, originally as a postdoctoral researcher. At Argonne, she participated in the National School on Neutron and X-ray Scattering from 1999 to 2017, including ten years as a scientific director of the school. From 2001 to 2009, she worked on the POSY1 polarized neutron reflectometer as instrument scientist. She has served the
American Physical Society as chair of the Topical Group on Magnetism and its Applications, and the Neutron Scattering Society of America as its secretary from 2005 to 2010. ==Recognition==