Low-Profile Microscopy SuperTran Continuous Flow Cryostat Systems by Janis Research

The Janis ST-500-LN continuous flow cryostat has been specially designed for use in microscopy, imaging, and high spatial resolution photoluminescence. The combination of low thermal-expansion support structure and internal vibration isolation results in ultra-low vibration and drift levels. The cryostat geometry offers a short working distance (for use with high magnification optics), and permits mounting on common microscope stages and translators. This low-profile cryostat is only 1.52" tall (<39 mm).

The ST-500-LN system includes a flexible high-efficiency variable flow cryogen transfer line, which delivers liquid helium or liquid nitrogen to a heat exchanger and sample mount. The ST-500-LN is portable, easily mounted in a variety of configurations, and can be used both in transmission and reflection geometries.

Please click here to view the ST-500-LN Microscopy Cryostat
Mechanical Drawing.

Options include:

A variety of window materials and sizes
Interchangeable sample mounts for different sample thicknesses
Electrical and RF feedthroughs
A complete system solution including temperature controllers, pumping systems and storage dewars.

LHe Specifications

Temperature range (continuous) w/LHe	<10 - 325 K (standard)
	<10 - 450 K (optional)^*
Initial cooldown time	10 K (LHe): 25 minutes
Cryogen usage on cooldown	1 L LHe
Temperature stability	<50 mK
(with temperature controller)
Weight	6 lbs. (2.7 kg)
(not including transfer line)
Nominal cryogen usage	LHe @ 10 K: ~2 L/hr
	LHe @ 20 K: ~1.5 L/hr
Nominal vibrational amplitude	ą25 nm expected
Positional drift	ą50 nm in 5 minutes expected
	ą150 nm in 30 minutes expected

^* With optional equipment, consult with Janis for details.

LN₂ Specifications

Cryostat overall height (thickness)	1.52" (39 mm)
Temperature range (continuous) w/LN₂	77 - 325 K (standard)
	77 - 450 K (optional)^*
Initial cooldown time	77 K: 15 minutes
Cryogen usage on cooldown	<0.3 L LN₂
Temperature stability	<50 mK
(with temperature controller)
Weight	6 lbs. (2.7 kg)
(not including transfer line)
Nominal cryogen usage	~55 mL/hr

^* With optional equipment, consult with Janis for details.