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Model HE-3-BLSUHV-STM Cryostat
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Description:
The model HE-3-BLSUHV-STM
cryostat was developed for Scanning Tunneling Microscope (STM)
application with sample in UHV environment.
A UHV sample preparation
chamber can be installed at the bottom of the cryostat; and the user is
able to lower the He-3 insert with a linear motion manipulator and
locate the STM inside the UHV chamber for sample change.
A special "helium-only" dewar
with double helium vapor cooled radiation shields was developed for this
system in order to minimize the vibration. No liquid nitrogen
reservoir is employed in this cryostat.
An "isolation" helium
reservoir separates the UHV sample space from the dewar vacuum space.
It minimizes the UHV space and makes the UHV pumping easier.
A self-contained UHV
compatible He-3 insert is included in this system, and multiple
measurements are taken to guarantee the alignment of this insert during
its sample change and normal operation.
A high field superconducting
magnet is included.
This He-3 cryostat includes
the following components:
- Vapor cooled helium dewar
- Helium isolation reservoir
- Self-contained He-3 insert
with all thermometers and heaters for operation
- Superconducting magnet
- UHV compatible linear
motion manipulator
- UHV compatible feedthrough
manifold
- UHV compatible aligner
- Operation test
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Options:
- UHV compatible resistive
wires
- UHV compatible coaxial
cables
- Automatic temperature
controller
- Helium level sensor and
read out
- Liquid helium transfer line
- Magnet power supply
- UHV compatible bottom
sample change chamber
- 1 K pot pumping station
- UHV pumping station sample
chamber and the sample can be loaded onto the STM head installed on
the He-3 pot
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Performance Specification:
| Base
Temperature:
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300 mK
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| Holding
Time at Base Temperature:
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40 hours minimum |
| Sample
Space:
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2.0" in diameter |
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Operation Temperature Range:
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0.3 K - 300 K
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Table of Contents |
Pages |
 Introduction |
1 |
Standard He-3 Cryostats |
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HE-3-SSV Insert, Standard Sample Loading, Sample in Vacuum |
2 |
HE-3-SVSD Insert, Standard Sample Loading, Sample in Vacuum for He-4 Storage Dewar
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3 |
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HE-3-SSXGAS Insert, Standard Sample Loading, Sample in Exchange Gas |
4 |
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HE-3-XGHS Mini-Exchange-Gas Handling System |
5 |
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HE-3-SOSV Cryostat, Standard Sample Loading, Optical, Sample in Vacuum |
6 |
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HE-3-SOSV-S
Cryostat, Standard Sample Loading, Optical, Sample in Vacuum |
7 |
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HE-3-SVC Cryostat, Standard Sample Loading, Sample in Vacuum, Compact for Detector Application |
8 |
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HE-3-CCR-SSV Cryostat, Standard Sample Loading, Sample in Vacuum, Cryogen-free |
9 |
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HE-3-SSV-CF Cryostat, Standard Sample Loading, Sample in Vacuum, Continuous Flow |
10 |
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HE-3-TLSL Cryostat, Top Loading, Sample in He-3 Liquid |
11 |
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HE-3-TLOSL Cryostat, Top Loading, Optical, Sample in He-3 Liquid |
12 |
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HE-3-TLSV
Cryostat, Top Loading, Sample in Vacuum |
13 |
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Gas Handling System for Top Loading He-3 Systems |
14 |
Special He-3 Cryostats |
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HE-3-TLSL-NMR Cryostat, Top Loading, Sample in He-3 Liquid for NMR Experiments |
15 |
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HE-3-TLSUHV-SPM Cryostat, Top Loading, Sample in UHV for Scanning Probe Microscope System |
16 |
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HE-3-SSUHV-SPM/ESR Cryostat, Standard Sample Loading, Sample in UHV for Scanning Probe Microscope System and Electron Spin Resonance System |
17 |
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HE-3-BLSUHV-STM Cryostat,
Bottom Loading, Sample in UHV for Scanning Tunneling Microscope System
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JANIS RESEARCH COMPANY, INC.
2 Jewel Drive, P.O. Box 696
Wilmington, MA 01887-0696 USA
TEL: +1-978-657-8750 FAX: +1-978-658-0349
E-Mail: sales@janis.com
Policies
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