VPF Series cryostats — sample in vacuum


VPF Series features

  • 65 K to 500 K (700 K and 800 K options)
  • Uses LN2
  • Sample-in-vacuum
Lake Shore — environment by JANIS

The Lake Shore VPF cryostat is an inexpensive liquid nitrogen cryostat offering operating temperatures from 65 K to 800 K. Simple to use and refill, the VPF system uses a refill-style displacer assembly and built-in heater to provide variable temperature capability. Temperatures below 77 K are achieved using an optional pumping manifold. High-temperature capability is provided using special sensors and heaters.

Optional window materials can be installed to span the far/mid- IR, VUV, and x-ray regions for a variety of spectroscopic measurements. The refill assembly permits the refilling of the LN2 reservoir without affecting the controlled temperature.

VPF-100 datasheet


VPF part numberOpticalSizeApplication-specificMaximum temperature
VPF-100  500 K
VPF-100SSub-compact 500 K
VPF-100ST Sub-compact 500 K
VPF-700SSub-compact 700 K
VPF-700ST Sub-compact 700 K
VPF-800  800 K

Cooling typeLN2
Minimum temperature65 K to 77 K (temperatures below 77 K with optional pumping manifold)
Maximum temperature800 K
Sample environmentVacuum
Cooldown15 min (to 77 K)
Sample change time
Typical stability±50 mK (measured with temperature controller)
LN2 hold time (77 K)5 h (VPF-100/T: 8 h)
LN2 hold time (100 K)4.5 h
LN2 hold time (200 K)2.5 h
Vacuum level required10-4 Torr (vacuum pressure measured at room temperature prior to adding cryogens)
Approximate weight7 lb (3.3 kg)