ST-500 microscopy cryostat
The Lake Shore ST-500 continuous flow cryostat is specially designed for use in microscopy, imaging, and high spatial resolution photoluminescence. The combination of the low thermal-expansion support structure and internal vibration isolation results in nanometer-scale vibration and drift levels. The cryostat geometry offers a short working distance (for use with high magnification optics) and permits mounting on common microscope stages and translators.
Features
- Low vibration — 15 nm
- Options for UHV
- Options for nano-positioning stages
- Can be used both in transmission and reflection geometries
ST-500 datasheet
ST-500 specifications
| ST part number | Optical | Size | Application-specific | UHV | Vibration | Maximum temperature |
| ST-500 | ✔ | Microscopy | 15 nm | 475 K | ||
| ST-500-UC | ✔ | Ultra-compact | Microscopy | 15 nm | 475 K | |
| ST-500-UHV | ✔ | Microscopy | ✔ | 15 nm | 475 K |
| Cooling type | LHe or LN2 |
| Minimum temperature | 3.5 K |
| Maximum temperature | 475 K |
| Vibration | Options for low vibration |
| Optional vibration amplitude (nominal)† | ±15 nm |
| Positional drift‡ | ±10 nm at 5 min; ±60 nm at 30 min |
| Sample environment | Vacuum |
| Initial cooldown time | 15 min (to 5 K) 25 min to 10 K (LHe); 30 min to 80 K (LN2) |
Cooldown cryogen usage to 4.2 K | 1 L LHe; 0.3 L LN2 |
| Cryogen usage (nominal) | LHe at 5 K: ~1.1 L/h; LN2 at 80 K: ~0.1 L/h |
| Typical stability | ±50 mK |
| Weight (not including transfer line) | 7 lb (3.2 kg) |
NOTE: Specifications do not include optical or experimental heat loads and assume horizontal orientation. Specifications may change depending on the length of the transfer line flexible section.
†Vibrational amplitude measured while on an isolated optical table. Results may vary depending on experimental conditions.
‡Data courtesy of B. B. Goldberg and M. S. Unlu, Departments of Physics, ECE and Photonics
Center, Boston University.