|
|
|
System Enhancements
Phosphorescence and Steady State (T1a)
Adds phosphorescence lifetime and steady state capability to systems, includes pulsed xenon source with QuadraScopic, computer controlled, monochromator for excitation, coupled to the second entrance port of sample compartment; added to the sample compartment second excitation channel optics; for detection a gated detector with 1527 PMT is coupled to the second exit port of the emission monochromator, one can select detectors by means of a flipping mirror.
The T-1A requires an open sample compartment port since it is directly coupled to the sample compartment and an open port on the current system's emission monochromator.
T1a Monochromator Specifications
| Focal length |
200 mm |
|
| Aperture ratio |
f/4 (calculated using grating width) |
|
| Wavelength range |
180 nm to 24 microns |
|
| Bandpass |
continuously adjustable from 0 to 20 nm |
|
| Reciprocal linear dispersion |
4 nm/mm |
|
| Resolution |
0.5 nm |
|
| Throughput |
60% at 300 nm |
|
| Scattered light |
0.02% two bandwidths from 365 nm Hg line |
|
| Accuracy |
+/- 1 nm (using manual wavelength control) |
|
| Reproducibility |
+/- 1 nm |
|
| Optical path height |
76 mm |
|
| Grating size |
50 x 50 mm |
T1a Detector Specifications
T1a Lamp Specifications
| Lamp type |
Pulsed xenon source |
|
| Wavelength range |
From 200 to 2,000 nanometers |
|
| Pulse repetition rate |
From 1 to 300 pulses per second |
|
| Pulse width |
Approximately 2 microseconds |
Back to top.
Steady State (T2)
For steady state measurement capability to lifetime systems, includes high intensity continuous xenon source with QuadraScopic, computer controlled, monochromator for excitation, coupled to the second entrance port of sample compartment; added to the sample compartment second excitation channel optics; for detection there is a high sensitivity photon counting/analog detector with 1527 PMT added to second exit port of emission monochromator, one can then choose between detectors by means of a flipping mirror.
The T-2 requires an open sample compartment port since it is directly coupled to the sample compartment and a open port on the current system's emission monochromator.
T2 Detector Specifications
| Input |
+/- 15 VDC, 250 mA |
|
| High voltage |
-200 to -1,100 VDC manually adjustable (LCD display indicates actual cathode voltage) |
|
| External high voltage adjust |
0 to +5 VDC (0 = -200 V, 5 = -1,100 V), continuously adjustable |
|
| Input regulation |
+/- 0.05% max. (for 15 V +/- 1 V input) |
|
| Load regulation |
+/- 0.05% max. |
|
| Ripple |
100 mV p-p max. |
|
| Temperature coefficient |
+/- 0.0% max. (+5 to +40 deg. C) |
|
| Drift |
+/- 0.03%/hr max. (after 15 minute warm-up) |
T2 Monochromator Specifications
| Focal length |
200 mm |
|
| Aperture ratio |
f/4 (calculated using grating width) |
|
| Wavelength range |
180 nm to 24 microns |
|
| Bandpass |
continuously adjustable from 0 to 20 nm |
|
| Reciprocal linear dispersion |
4 nm/mm |
|
| Resolution |
0.5 nm |
|
| Throughput |
60% at 300 nm |
|
| Scattered light |
0.02% two bandwidths from 365 nm Hg line |
|
| Accuracy |
+/- 1 nm (using manual wavelength control) |
|
| Reproducibility |
+/- 1 nm |
|
| Optical path height |
76 mm |
|
| Grating size |
50 x 50 mm |
T2 PMT Specifications
| Spectral response |
185 to 680 nm |
|
Cathode sensitivity
Luminous
Radiant |
60 µA/l
400 nm–60 mA/W |
|
Anode sensitivity (at 1000 V)
Luminous
Radiant |
400 A/lm
400 nm–4.0 x 105 A/W |
|
| Low dark current |
0.1 nA |
|
| Low dark counts |
(R1527P) - 10 cps |
T2 Lamp Specifications
| Lamp power capacity |
75 to 200 watts |
|
| Heights |
100 mm (3.9 inches) |
|
| Width |
100 mm (3.9 inches) |
|
| Length |
210 mm (8.3 inches) |
|
| Weight |
1.9 kg (4.2 pounds) |
|
| Window diameter (D) |
65 mm |
Back to top.
Extended Phosphorescence Detection (T3)
Extended phosphorescence detection option for fluorescence lifetime systems (for lifetimes beyond 500 nanoseconds), adds gated detector with 1527 PMT to second exit channel of emission monochromator, detector selection by means of flipping mirror.
T3 Detector Specifications
Back to top.
Dual Emission (T5)
Converts TM-3 lifetime system to L-format LaserStrobe™ system. Adds second emission monochromator, electrometer and 1527 PMT, sample compartment optics, filter holder and mechanical shutter.
T5 Emission Monochromator Specifications
| Wavelength range |
180 nm to 24 microns, continuously tunable (useful detection wavelength range dependent on grating and photomultiplier tube) |
|
| Bandwidth |
0 to 25 nm, continuously tunable |
|
| Resolution |
0.5 nm |
|
| Accuracy |
+/- 0.5 nm |
|
| Reciprocal linear dispersion |
4 nm/mm |
|
| Throughput |
60% at 400 nm |
|
| Stray Light |
< 0.02% two bandwidths from 365 nm Hg line |
T5 Stroboscopic Detector Specifications
| Wavelength range |
185 to 680 nm with standard R1527 PMT |
Back to top.
|
