Windows
- Laser Windows
- There are specific windows that allow particular wavelengths of light pass while helping hold vacuum
- Fairly robust, don't scratch coating
- Kapton Windows
- Kapton has a lot of cool properties
- High melting point
- Low volatility
- Good for no outgassing in vacuum
- Transparent to X-rays
- Prone to rupture (see below)
Stages
- Movement of sample
- Goniometer (theta)
- Tip
- Tilt
- X, Y, and Z
- Sometimes a small goniometer on top
- Movement of diagnostic paddle
Diagnostic Paddle
- Allows scientists to align the x-rays and lasers onto sample
- Frosted YAG (Yttrium aluminium garnet)
- Fluoresces when x-rays hit it
- Need to check with Takahiro
- Horizontal slit?
- Vertical slit? Silicone Nitrate?
Temperature Control
- Cryostats
- Flow Cryostat
- Uses lots of He
- "No" vibrations
- Closed loop cryostat
- Uses a fixed amount of He
- prone to lots a vibrations
- Resistance Temperature Detector (RTDs)
- Heaters
- Proportional Integral Derivative Feedback Loops
- Thermal connections and isolations
- Copper braids and Peek stands
Vacuum
- Roughing Pump
- Turbos
- Pirani and Cold Cathodes
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