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ST-100 Optical Cryostat
Overview
Optical continuous flow cryostat suitable for a wide range of applications: the window material and geometry can be specified to allow spectroscopy with excitation energies from gamma rays through to the far infrared.
Standard Configuration
Designed for experiments requiring optical access to the sample, the Janis Research ST-100 includes the following components:
ST-100 Optical Cryostat Mechanical Drawing
- Optical vacuum shroud
- Optical radiation shield
- Four (4) 1.625" clear view quartz windows
- Optical sample holder
- One (1) 10-pin electrical feedthrough
- Three (3) blank feedthrough ports
- Temperature sensor
- 6' superinsulated cryogen transfer line
- System test
Typical Applications:
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Specifications
| Specification | SuperTran
(Sample in Vacuum) |
| Temperature Range | <2-325 K (500 K, >700 K optional) |
| Initial Cooldown Time | 15 minutes |
| Nominal Temperature Stability (with controller) | 50 mK or less |
| Orientation | any position (with increased helium consumption) |
| System Weight (without transfer line) | 10 lbs (4.6 kg) |
| Cryogen Consumption on Cooldown | 0.4L LHe (325 - 4.2 K)
0.1L LN2 (325 - 77 K) |
| Nominal Cryogen Consumption Rate | 0.5 L/Hr LHe (5 K)
0.1 L/Hr LN2 (100 K) |
| NOTE: Specifications do not include optical or experimental heat loads and assume vertical orientation. |
Typical Cryogen Consumption of Optical SuperTran Cryostats
Other Configurations
Other Optical Configurations:
- Special window geometry
- Optional fifth window
- High temperature (500 K), (700 K)
- Customized window materials
- Gas introduction ports
- Large diameter sample space
- Sample holder and wiring for DLTS
Special ST-100 SuperTran with Rotatable Vacuum Shroud for Matrix Isolation
Special ST-100
This special ST-100 has two semi-rigid cables installed from the top flange to the sample area. It has a compact window block with (2) Polyethylene windows and (2) fused quartz windows.
Conflat flange to Ladish flange adaptor
The image shows a conflat flange/ladish flange adaptor that allows an ST-100 to be installed on a UHV chamber with a 2.75" conflat flange. Please note that while this is the easiest way to put an ST-100 onto a UHV chamber, the ST-100 will not be UHV compatible.
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