General Specifications


ultra low vibration, closed-cycle cryostat intimately integrated into optical table, optical table included

sample environment

cryogenic vacuum, sample cooled via braids (ATC100)

sample space

75 mm (diameter)

sample exchange

easy access via removal of vacuum shroud


fully automated temperature control (vacuum, cooldown, T control, warmup), all pumps integrated, USB interface for remote control

vibration & acoustic noise damping system

proprietary low vibration design

Performance Data

temperature range

4 .. 350 K

base pressure before cooldown

approx. 1e-5 mbar

cool down time of sample

approx. 3 h to 6 K (approx. 4-5 h to 4 K; depending on load)

temperature stability

< 15 mK (peak-to-peak with damped sample mount)

cooling power at sample location

100 mW @ 4.2 K

vibration level

< 5 nm (peak-to-peak)

Closed-Cycle Cooler

power consumption

max. 3 kW

cooling of compressor

water cooling (default; requires local infrastructure), air cooling (optional)

Size and Dimensions

optical table

standard size 900 mm x 1800 mm x 305 mm (leg height 597 mm); metric or imperial mounting threads (other table sizes available)

Options and Upgrades

temperature controller


pumping kit


electrical access

36 customer wires included, heat sunk @ 4 K

optical windows

4 side windows, 1 top window

type of windows

BK7 (others on request)

vacuum shroud

customized height and diameter (on request)


electrical (DC, HF), optical fibers, gas capillary (on request)

sample motion

Premium Line positioners and scanners




extension to 13 m or 20 m (instead of 6 m)


for active vibration isolation of optical table

Compatible Equipment

confocal microscopes

attoCFM I, attoCFM II, attoCFM III (on request)

confocal Raman microscopes

attoRAMAN (on request)

atomic/magnetic force microscopes

attoAFM I (on request), attoAFM III (on request)

combined atomic and confocal microscope

attoAFM/CFM (on request)