Infrared Directional Reflectance Measurements
Polarized, angular diffuse reflectance measurements from 8° to 80° incident angles in the 2.0 to 25.0 μm spectral range. Reflectance for parallel, perpendicular & unpolarized beam at 12 user selected angles. Separation of reflectance into diffuse and specular components. Collimated and scattered transmittance at 0° incidence. Directional emittance as a function of wavelength, angle from 8° to 80°, and temperature to beyond 500°C. Total hemispherical emittance as a function of temperature. Operates as an attachment to the Thermo Scientific™ Nicolet™ iS50 FTIR Spectrometer.
SOC-100 HDR Measurement Data
Direct measurements and derived optical properties:
SOC-100 HDR Measurement Services
Surface Optics measurement services give you access to our Hemispherical Directional Reflectance instrumentation and optical property measurements expertise without investing in equipment.
Specifications
Spectral Range |
2.0 – 25.0 λ (μm) / 5000 – 400 cm-1 Range can be modified based on FTIR optics. |
Method |
Automated reflectometer 18” electroformed hemiellipsoid mated to Thermo Scientific™ Nicolet™ iS50 FTIR |
Calibration |
Comparison of scans of the specimen sample and calibrated specular gold standard at each angle polarization combination establishes accurate calibration of the measured directional reflectance. |
Source |
A custom heated cavity provides uniform 2π steradian radiation into the subtended hemiellipsoid from a 0.75” ID opening centered at one ellipse focus. All cavity surfaces, excepting the opening, are insulated with high performance Min-K insulation and the unit is surrounded by a water cooled jacket. |
Resolution |
Depending on data requirement: 2, 4, 8, 16, or 32 cm-1 resolution may be employed. |
Sample Size |
Standard: 1” OD. Sample mounting can accommodate up to 3” x 4” samples |
Automation |
The automated process is computer controlled by five stepper motors which provide: polarization (parallel, perpendicular and unpolarized), variable incident angles, sample standard interchange, beamblocker angles. The source beam chopping is synchronized to the movement of the FTIR mirror which eliminates the sample self-emission error. |
Bench Space Required |
8’ of bench space, min 30” depth to allow for iS-50- FTIR, SOC-100, temperature controller and computer |
Electrical Requirement |
Two 15 amp 120VAC circuits to support the SOC-100, The Thermo-Fischer iS-50 FTIR and the Computer. |
Water Requirement |
Room temperature, 0.5 GPM filtered to 50 micron particulate. Two ¼” compression fittings at the rear of the SOC-100. |
Purge Gas Requirement |
0.5 – 1.0 SCFM inert dry Nitrogen or Clean Dry Air. ¼” quick connect fittings at the rear of FTIR and SOC-100. |
Operating Temperature of Environment |
60 to 80 degrees |
SPECTRE Software
The SPECtral Transmittance Reflectance and Emissivity software provided with the SOC-100 controls both the FTIR and SOC-100. SPECTRE acquires, processes, and stores the HDR data. After mounting the samples and starting the system, the operator initializes the computer program, defines measurement parameters (wavelength range, polarization angle, etc.), and chooses measurement type (reflectance or transmittance).
Once the operator starts the measurement process, the computer automates data acquisition tasks, including: operating the FTIR instrument, sequencing the operation of five stepper motors in the reflectometer, providing real-time graphical display during data recording, processing, and compiling data to provide tabular and graph results.
Other Info
Product Code |
Description |
|---|---|
Standard Configuration |
|
0100-0001 |
SOC-100 Hemispherical Directional Reflectometer. The following items are included with the system:
|
0100-0003 |
Thermo Nicolet is50 FT-IR |
0100-0010 |
Water Recycling Chiller |
Optional Accessories |
|
0100-0017 |
3 Inch Sample Holder |
0100-0023 |
Powder Sample Cups |
0100-0018 |
SOC-100 1 Inch Elevated Temperature Sample Holder |
0100-1000 |
SOC-100 Annual Support Plan |
0100-0040 |
Transformer 110V/220V |
Does the SOC-100 HDR require the Thermo Scientific™ Nicolet™ iS50 FTIR or can it operate independently?
No, the Thermo Scientific™ Nicolet™ iS50 FTIR is used as the detector for the SOC-100 and is a required component.
Does the system work with any FTIRs besides the Thermo Scientific™ Nicolet™ iS50 FTIR?
No, the SOC-100 is only compatible with the Nicolet iS50. This FTIR can be purchased from Surface Optics or directly from Thermo Scientific. If purchased from Thermo Scientific, you will need to coordinate with Surface Optics to ensure the FTIR has the proper configuration to operate with the SOC-100 HDR.
What is the export classification of the SOC-100 HDR?
The SOC-100 HDR and the SOC-100 reference coupons are classified as EAR99. If the FTIR is purchased with the SOC-100 the ECCN is 3A999.F. However classifications may change over time and any export control concerns regarding purchases should be directed to contracts@surfaceoptics.com for the most up-to-date information.
How many incident angles can be performed in 1 measurement cycle?
The user can select up to 12 incident angles per measurement run.
Didn’t find an answer to your question? Email us at contact@surfaceoptics.com