Magnet's Faraday pole caps
				Operator's view of cryostat and microbalance
	MPMS Systems

   Cryostat (Model CTC-1)
    Low Temperature Gas/Liquid Supply System (LTSS)
   Bayonet Transfer Line
   10+ kilogauss Electromagnet
   Electromagnet Power Supply
   Microbalance
   Temperature Controller
   Rigid Structural Stand

Together this system can be used to detect superconductivity in 10 parts per million of a 10 mg sample. The system will detect proportionately smaller concentrations in samples of larger mass. This corresponds to a susceptibility sensitivity of 10-7 emu/g. The systems has a theoretical sensitivity of 10-6 emu/g.

The cryostat has a 0.585 inch inner diameter sample space. A low temperature gas/liquid supply system (LTSS) delivers the required cryogen to the cryostat through the vacuum insulated bayonet transfer line. Together the system controller and temperature controller can maintain temperatures to within 0.5K over a range from 4K to 800K. The temperature controller can interface with the optional system controller.

The microbalance has an accuracy of ±0.5 microgram with a repeatability of 0.2 microgram. The maximum balance capacity is 3.5 grams (1 00 grams optional). The microbalance can be interfaced with the optional system controller.

The electromagnet and power supply system is essential for precise magnetism experiments. The basic magnet is a horizontal field, variable gap electromagnet. The air gap is adjustable between 0" and 4.00" with an intercoil spacing of 4.00". Faraday pole pieces are provided to create a region of uniform force for susceptibility measurements. The power supply includes a water flow interlock to interrupt current to the magnet if cooling water flow stops. The electromagnet and power supply system can interlace with the optional system controller.

The stand's construction is welded steel for holding the Cryostat, Electromagnet, Instrument Support Module, and other system components.

				Optional furnace (1100° C)
	Computer controlled cryogenic delivery system