Cooled video camera for optical investigations below 1 mK
Abstract
An optical imaging system for milliKelvin temperatures has been developed based on a regular B/W surveillance camera (25 frames/s), with its CCD sensor inside the 4-K vacuum can of our nuclear demagnetization cryostat. The heat leak to the nuclear stage, caused by the operation of the video camera, was reduced below 1 nW by careful rf shielding. The construction of the system and its limits of operation are discussed.
- Publication:
-
Review of Scientific Instruments
- Pub Date:
- May 1994
- DOI:
- 10.1063/1.1144827
- Bibcode:
- 1994RScI...65.1784A
- Keywords:
-
- Cameras;
- Charge Coupled Devices;
- Cryostats;
- Electromagnetic Shielding;
- Heat Transfer;
- Imaging Techniques;
- Sensors;
- Video Signals;
- Cmos;
- Gates (Circuits);
- Helium-Neon Lasers;
- Integrated Circuits;
- Light (Visible Radiation);
- Radiation Shielding;
- Transistors;
- Communications and Radar