  In this article a new, multi-functional, high-vacuum astrophysical ice setup,
VIZSLA (Versatile Ice Zigzag Sublimation Setup for Laboratory Astrochemistry),
is introduced. The instrument allows the investigation of astrophysical
processes both in a low-temperature para-H2 matrix and in astrophysical analog
ices. In para-H2 matrix the reaction of astrochemical molecules with H atoms
and H+ ions can be studied very effectively. For the investigation of
astrophysical analog ices the setup is equipped with different irradiation and
particle sources: an electron gun, for modeling cosmic rays; an H atom beam
source (HABS); a microwave H atom lamp, for generating H Lyman-alpha radiation,
and a tunable (213 nm to 2800 nm) laser source. For analysis, an FT-IR (and a
UV-Visible) spectrometer and a quadrupole mass analyzer are available. The
setup has two cryostats, offering novel features for analysis. Upon the
so-called temperature-programmed desorption (TPD) the molecules, desorbing from
the first cryostat, can be mixed with Ar and can be deposited onto the
substrate of the other cryostat. The well-resolved spectrum of the molecules
isolated in an Ar matrix serves a unique opportunity to identify the desorbing
products of a processed ice. Some examples are provided to show how the para-H2
matrix experiments and the TPD -- matrix-isolation recondensation experiments
can help to understand astrophysically important chemical processes at a low
temperature. It is also discussed, how these experiments can complement the
studies carried out by similar astrophysical ice setups.
