RefractorReactor™ Grazing Angle Accessory

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The Refractor™ Reactor is a valuable tool for grazing angle FT-IR studies of reactions on metal surfaces and on thin films on metal substrates. Samples can be heated to 500°C and pressurized up to 203 kPa (2 ATM).

The Refractor™ Reactor incorporates two wedged windows to refract the beam to and from the sample. This unique design results in a compact reaction chamber and avoids the energy losses associated with the short plane mirrors typically employed in grazing angle accessories.

RefractorReactor™
Grazing angle specular reflection, Variable Temperature and Pressure, 24V
Model No.
RGR-XXX-3
Price
N/A
NOTE: A Model No. ending in "XXX" denotes spectrometer code.

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Features
  • Fixed 75° incident angle for high sensitivity to contaminants and thin films on metals.
  • Incorporates two SuperCharged™ ZnSe wedged windows to refract the beam to and from the sample. KRS-5 windows available by special order.
  • Maximum sample size 0.125" thick by 1.7" x 1".
  • Heatable to 500°C for studying high temperature reactions by grazing angle reflectance.
  • Operable at pressures from 13 mPa (10-4 torr) to 203 kPa (2 ATM).
  • Highly efficient FT-IR accessory.
  • Designed for in-line use of a wire grid polarizer.
Includes
  • Two SuperCharged™ ZnSe wedged windows.
  • Alignment mirror.
  • Mating hardware for the specified infrared FT-IR spectrometer.
 
Model No. Product Description Price
ATC-024-3 Temperature Controller, 110V

Tabletop model

N/A
ATC-024-4 Temperature Controller, 220/240V

Tabletop model

N/A
ATK-024-3 Temperature Controller Kit, 110V

Includes 110V Temperature Controller and USB to RS-485 Adapter

N/A
ATK-024-4 Temperature Controller Kit, 220/240V

Includes 220/240V Temperature Controller and USB to RS-485 Adapter

N/A
VPE-001 Vacuum Pump

Dual-stage oil sealed rotary vacuum pump

N/A
VPE-002 Vacuum Pump

Dual-stage oil sealed rotary vacuum pump

N/A
 
Model No. Product Description Price
007-085 VCO to Swagelok Adapter (English) 1/4" female VCO to 1/4" Swagelok N/A
116-998 VCO to Swagelok Adapter (Metric) 1/4" female VCO to 6 mm Swagelok N/A
ATC-USB-485 Temperature Controller USB to RS-485 Adapter For use with the Temperature Controller N/A
O-Rings & Gaskets
Model No. Product Price
RGR-ORV Viton O-Rings for RefractorReactor $58.00
RGR-ORK Kalrez O-Rings for RefractorReactor $430.00
ORV-038 Viton O-Ring, 2.754 OD, 2.614 ID $24.00
ORK-019 Kalrez O-Ring, 0.941 OD, 0.801 ID $72.00
ORV-010 Viton O-Ring, 0.379 OD, 0.239 ID $8.00
Other
Model No. Product Price
008-144 Thermocouple, K-Type $103.00
Reference & Mirrors
Model No. Product Price
MOP-112 25 x 32 x 3.2mm Mirror $84.00
Windows
Model No. Product Price
RGA-001 ZnSe Wedged Window for Reactor2 $675.00
Heaters
Model No. Product Price
HTRS-19 Cartridge Heater, 0.250" x 1", 24V/96W $84.00
RefractorReactor

 

Figure 1. The Refractor™ Reactor.

The Refractor™ Reactor is a reaction chamber for in-line grazing incidence studies. It is ideal for recording spectra of thin films on metal substrates. The angle of incidence is fixed at 75° and can accommodate samples up to 0.125" thick by 1.7" x 1". It can be heated up to 500°C under vacuum, evacuated to 13 mPa (10-4 torr), and pressurized up to 203 kPa (2 ATM) with the standard ZnSe windows. Excellent spectral contrast results.

Conventional in-line grazing incidence attachments have a significant drawback. The short plane mirrors employed do not totally intercept the beam of the spectrometer, resulting in a significant loss in optical throughput. In the Refractor, these losses do not occur, since the optical beam is deflected (15°) to and from the sample via wedged (10°) ZnSe windows.

The Refractor™ Reactor has two ports for flowing reactant over the sample, evacuating the sample, and pressurizing the sample with a reactant. Heating cartridges are imbedded below the sample and two thermocouples are supplied to measure the sample and heater temperatures. For precise temperature control, the heater and thermocouples should be connected to a Temperature Controller.

Figure 2. External Reflectance of SiO₂ on Aluminum.

Figure 3. Grazing Angle Spectrum of Silicon Lubricant on Aluminum.

Figure 2 shows the spectrum of a silicon dioxide film, approximately 500 Å thick, on an aluminum substrate. In Figure 3, the spectrum of a 100 Å layer of silicone lubricant on an aluminum substrate is given. Here, an external wire-grid polarizer is used to generate P-polarized incident radiation.

The Refractor™ is supplied with all mounting hardware required to install it directly in the spectrometer and is compatible with most center focus FTIR instruments. Alignment is fast and simple.