To better understand electronic and electric materials, cryogenic or temperature-dependent studies are monitored using helium and liquid nitrogen stages.
Features:
- Stabilization of beam-sensitive materials under high beam currents
- Low-temperature phases can be analyzed
- Improved spectroscopy and imaging, mainly for cathodoluminescence (CL)
Table No.1: Liquid Helium Cooling Stage
| Model # |
Base
temp. |
Cool down time |
Max. operating temp. |
Tilt |
Rotate |
Additional electrical feedthrough option |
| C1001 |
-185 °C |
10 min |
50 °C |
45° |
±5° |
√ |
| C1002 |
-185 °C |
10 min |
200 °C |
45° |
±5° |
√ |
| C1003 |
-185 °C |
10 min |
400 °C |
45° |
±5° |
√ |
| CF302 |
6 K |
45 min |
140 K |
|
|
√ |
| CF302M |
8 K |
55 min |
140 K |
|
±5° |
√ |
Table 1. Source: Gatan Inc.
Liquid Nitrogen Cooling Stages C1001, C1002, C1003
- Nitrogen gas cools stages to less than −185 °C
- Straightforward installation/removal permits the utilization of standard SEM stage
- Quick cool down and stable temperatures are ensured by efficient thermal design
- Higher upper-temperature options allow more flexibility in experiments
- Vibration due to boiling of LN2 is removed by the external liquid nitrogen heat exchanger
- High-precision control through temperature sensor and integral heater
Liquid Helium Cooling Stages CF302, CF302M
- CF302M — a helium-cooled stage module — attaches to the SEM goniometer and requires more care than the CF302
- Complete replacement SEM stage and door assembly with X, Y, and Z axis manual micrometers
- Exclusively engineered vibration and low drift, while reducing the consumption of liquid helium
- Depending on the configuration and intended use, an optional radiation shield can be included
- Complete system includes top fitting with bladder and valve, flexible transfer tube storage vessel, gas flow pump, gas flow controller, and digital temperature controller
Dual Fuel Option
- Works by forcing cold nitrogen gas through the circuit that is similar to the successful C1002 product
- Allows operation of liquid helium cold stages with both helium and nitrogen
Accessories — Anti-Contaminators
- Anti-contaminators C1005, C1006, or C1007 are included as accessories
Table No.2: Liquid Nitrogen Cooling Stage
| Model # |
Base
temp. |
Cool down
time max |
Max. operating
temp. |
Heater
control individual individual |
Individual cooling
circuit |
| C1005 |
Less than -185 °C |
10 min |
50 °C |
|
|
| C1005B |
Less than -185 °C |
10 min |
50 °C |
|
√ |
| C1006 |
Less than -185 °C |
10 min |
50 °C |
|
√ |
| C1007 |
Less than -185 °C |
10 min |
50 °C |
√ |
|
Table 2. Source: Gatan Inc.