Lake Shore Cryotronics CRX-6.5K, Руководство пользователя

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2 CHAPTER 1: Introduction
Model CRX-6.5K Probe Station
1.3 Specifications General specifications about the Model CRX-6.5 K probe station are provided in the
table below.
SAMPLE COOLING ASSEMBLY
Type 2-stage ( radiation shield)
Radiation shielding Radiation shield with top viewport surrounds sample
Cooling source 2-stage closed cycle refrigerator (CCR) with 3 W cooling power at 10 K
MAGNET FIELD
Not an option
TEMPERATURE
1
Base temperature Control range Configuration
8 K 8.5 K to 350 K 2 probe arms installed
9 K 9.5 K to 350 K 4 probe arms installed
10 K 10.5 K to 350 K 6 probe arms installed
20 K 20 K to 675 K with PS-HTSTAGE option
1
Base temperature assumes heat load for probes thermally anchored as listed in the Probing section, below.
CONTROL STABILITY
Sample stage temperature Stability
Base temperature (no heater control) Not specified
<10 K ±25 mK
11 K to 350 K ±10 mK
Cooling source ±50 mK
VACUUM
Room temperature
<5 × 10
-4
Torr
Base temperature
<1 × 10
-5
Torr
Maximum temperature
<5 × 10
-5
Torr
CYCLE TIME (LHe)
6.25 h
Pump down 0.5 h
Station cool down 3.5 h
Station warm up 2.25 h
VIBRATION AT SAMPLE
<2 µm
SAMPLE
Maximum sample size 51 mm (2 in) diameter
Sample backside optical access Not an option
Sample rotation Not an option
PROBING CONFIGURATIONS
Maximum probes 6
Probe arm sensor Included for monitoring probe temperature
Cooled probe mounts <20 K with sample at base temperature
Probe mount Thermally anchored to sample stage
Probe arm Thermally anchored to radiation shield
DC/RF probes Electrical isolation >100 G
)
for low leakage measurements
TABLE 1-1 Model CRX-6.5K probe station specifications