LP980: Transient Absorption Spectrometer
Brand: Edinburgh Instruments | Category: Scientific & Laboratory Equipment
Flash photolysis transient absorption spectrometer for following short lived excited states and reaction intermediates. The kinetic configuration measures a decay at a single wavelength; the kinetic and spectral configuration adds an intensified CCD so the whole transient spectrum can be captured at chosen delays. Excitation is a Q-switched Nd:YAG laser with an optional tuneable OPO.
Model specifications
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| Parameter | Value |
|---|---|
| Monochromator | Czerny-Turner with triple grating turret, 325 mm focal length, 25 µm to 10 mm computer-controlled (continuously adjustable) motorised slits |
| Laser Excitation Source | Flashlamp pumped Q-switched Nd:Yag laser operating at 1064 nm, 532 nm, 355 nm or 266 nm. OPO, tuneable in the range 410 nm - 710 nm (signal). Idler and UV doubler options possible |
| Sample Geometry | Transverse sample excitation geometry included as standard |
| Parameter | Value |
|---|---|
| Grating | Plane ruled grating, 1800 g/mm, 500 nm blaze as standard |
| Dispersion | 1.8 nm/mm |
| Spectral Range | 200 nm - 870 nm |
| Spectral Resolution | 0.1 nm |
| Sensitivity | ΔOD 0.002 (single shot - fast detector option, PMT), ΔOD 0.0005 (single shot - slow detector option, ICCD) |
| Detector Type | Photomulitplier (PMT) with 5 stage dynode chain for high current linearity |
| Detector Impedance | 50 Ω (amplified - fast detector, <3 ns rise time), 1 kΩ (slow detector, <100 µs rise time) |
| Parameter | Value |
|---|---|
| Grating | Kinetic mode grating plus an additional plane ruled grating: 150 g/mm, 500 nm blaze supplied |
| Dispersion | 21.6 nm/mm |
| Spectral Coverage | 540 nm (active horizontal ICCD dimension: 25 mm) |
| Spectral Resolution | 0.56 nm (spectral coverage / 960 pixels) |
| Sensitivity | ΔOD 0.0005 single shot |
| Detectors | Kinetic mode PMT plus an additional image intesified CCD camera (ICCD) supplied |
| Min. Optical Gate Width | 7 ns (FWHM) |
| Active Pixels | 960 x 256 |
| Active Area | 25 mm x 6.7 mm |
| Cooling | -20°C as standard (-35°C with additional water circulation) |
Manufacturer catalogue checked 2026-09-29.
Published manufacturer data for the listed model or variants. Confirm the exact configuration, accessories and test conditions in the quotation.
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