HT MAS

Doty High-Temperature CPMAS Probes

in a class by itself

Simple, safe operation up to 700οC
6.5 kHz MAS from 250 οC to 600 οC.
5.0 kHz from 600 οC to 700 οC.

Spinning up to 6 kHz

Double-balanced, multi-X, high-efficiency RF

Ultra-low (<1%) thermal gradients
Silicon-nitride stator, rotor and turbine

45 kHz 1H decoupling at 600 οC, 500 MHz 
(Double-tuned available up to 500 MHz)

Efficient heat exchanger for maximum safety

70Pt – 30Rh heater element for long life

The bell-dewar construction includes alumina-dispersion-strengthened copper, a superalloy, a custom Cu-Ni alloy, Sn-bronze, and three braze alloys. A 30-hour vacuum bake-out at 620°C ensures long-term  reliability.

Click here, to see spectra taken with Doty High-Temperature CPMAS probes

  • Highly optimized, high temperature Si3N4 rotor/turbines have laser-machined blades with an integral shroud.
  • The Radial-inflow Si3N4 turbines minimize N2 gas consumption
  • Low-cost, boron-nitride sample cell inserts( inside Si3N4 rotor) for melting, reacting and outgassing situations.
  • A screw plug (with a central hole for outgasing) holds the boron nitride insert in place in the rotor while plugging the hole.
Part number
Item description
Price (US$)
43648

Silicon- nitride high-temp rotor.
Rotor (requires a screw and insert)
——————————————————————————-
Early HT spinners have different inserts and rotors. 

Reference the High Temperature Accessories Page.

$ 2000
43965
Boron nitride high-temp. rotor insert

$ 90

07830

Zirconia high-temp. rotor screw

$ 300
08140

Macor high-temp. rotor screw

$ 80
The above prices are in US dollars – Foreign prices are higher, plus taxes.

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