  A series of beam dynamic studies were performed in 2020-2021 at the PIP-II
Injector Test Facility (PIP2IT) that has been built to validate the concept of
the front-end of the PIP-II linac being constructed at Fermilab. PIP2IT is
comprised of a 30-keV H- ion source, a 2 m-long Low Energy Beam Transport
(LEBT), a 2.1- MeV CW RFQ, followed by a 10-m Medium Energy Beam Transport
(MEBT), 2 cryomodules accelerating the beam to 16 MeV and a High-Energy Beam
Transport (HEBT) bringing the beam to a dump. This paper presents beam dynamics
- related measurements performed at PIP2IT such as the Twiss parameters with
Allison scanners, beam envelopes along the injector, and transverse and
longitudinal rms emittance reconstruction. These measurements are compared with
predictions from the beam dynamics code Tracewin.
