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Linear Array Spectrometric Detectors
RY-512 · RY-1024 · PDA-512 · PDA-1024
· High performance single diode array
Quantum Efficiency, %

100 90

PDA detectors for spectroscopic systems

·

Full 25 mm coverage on 1024 element array Large well capacity Low cost

80 70 60 50 40 30 20 10 0 200 300 400 500 600 700 800 900 1000 1100

· ·

Wavelength, nm

Linear Arrays Reticon diode array models RL-512SAQ or RL-1024SAQ with 512 and 1024 diodes respectively Format 512 в 1 or 1024 в 1; 25 в 2500 µm pixels Spectrometric Well Capacity 80,000,000 electrons Readout Noise 1800 electrons at 100 kHz for 14 bits; 1200 electrons RMS at 150 kHz for 16 bits Total Noise Detector is normally readout noise limited: <1.3 count RMS, except at high light level signals and very long integration times where it can become photon shot-noise and/or dark charge shot-noise limited.

Dynamic Range For RY models, 14 bits; For PDA models, 15 or 16 bits available Uniformity of Sensitivity < ±6% typical Resolution Number of diodes at FWHM of line: 1-2. Resolution is defined here as the number of diodes contained at FWHM of a spectral line. Somewhat better resolution is obtained without a spectrograph by a direct projection of a 25 µm line image on the detector. Operating Temperature -10°C without water circulation; -40°C with tap water circulation

Thermostating Precision ±0.040°C over entire temperature range; dark charge stabilized to ±1.0% Typical Dark Charge 10 counts/diode-second at -35°C Scan Rate 50 to 150 kHz Spectral Rate 280 spectra/second, PDA-512, 150 kHz; 140 spectra/second, PDA-1024, 150 kHz Detector Controllers ST-121 Controller for standard ISA bus interface; ST-116 Controller for GPIB interface

The Leader in Spectroscopic Detection 37


Linear Array Spectrometric Detectors
DPDA-512 · DPDA-1024
· High performance dual diode array
Quantum Efficiency, % 100 90 80 70 60 50 40 30 20 10 0 200 300 400 500 600 700 800 900 1000 1100

PDA detectors for spectroscopic systems

·

Ideal for absorption measurements Full 25 mm coverage on 1024 element array Large well capacity Low cost

·

· ·

Wavelength, nm

Linear Arrays Reticon diode array models RL-512SAQ or RL-1024SAQ with dual 512 and 1024 diodes respectively Format 512 в 2 or 1024 в 2; 25 в 2500 µm pixels Spectrometric Well Capacity 80,000,000 electrons Readout Noise 1800 electrons at 100 kHz for 14 bits; 1200 electrons RMS at 150 kHz for 16 bits Total Noise Detector is normally readout noise limited: <1.3 count RMS, except at high light level signals and very long integration times where it can become photon shot-noise and/or dark charge shot-noise limited.

Dynamic Range 14 bit standard, 15 or 16 bits available Uniformity of Sensitivity < ±6% typical Resolution Number of diodes at FWHM of line: 1-2. Resolution is defined here as the number of diodes contained at FWHM of a spectral line. Somewhat better resolution is obtained without a spectrograph by a direct projection of a 25 µm line image on the detector. Operating Temperature -10°C without water circulation; -40°C with tap water circulation

Thermostating Precision ±0.040°C over entire temperature range; dark charge stabilized to ±1.0% Typical Dark Charge 10 counts/diode-second at -35°C Scan Rate 50 to 150 kHz Spectral Rate 140 spectra/second, DPDA-512, 150 kHz; 70 spectra/second, DPDA-1024, 150 kHz Detector Controllers ST-121 Controller for standard ISA bus interface; ST-116 Controller for GPIB interface

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Princeton Instruments


Linear Array Spectrometric Detectors
InGaAs1.7-256 · InGaAs1.7-512
· InGaAs active sensor, silicon shift register
Quantum Efficiency, % 100 90

PDA detectors for spectroscopic systems

· ·

Thermoelectrically cooled Full 25 mm spectral coverage on 512 element array Ideal for NIR spectrophotometry or NIR Raman Four different sizes available

80 70 60 50 40 30 20 10 0 800 900 1000 1100 1200 1300 1400 1500 1600 1700

·

·

Wavelength, nm

Linear Arrays Sensors Unlimited models SU256L-1.7RT-100, SU512L-1.7RT-100, SU256L-1.7RT-250, and SU512L-1.7RT-250 Format 256 в 1 or 512 в 1; 50 µm spacing; diode active dimensions are 38 µm wide and 100 or 250 µm high; active length is 12.8 or 25.6 mm Spectrometric Well Capacity 80,000,000 electrons Readout Noise 3,500 electrons at 50 kHz Response Nonlinearity < 3%

Response Nonuniformity < ±10% Blemish Definitions Either dropouts (disconnected diodes) or diodes whose dark charge at -40°C is more than 2 times the average dark charge of the operable diodes Blemish Specifications Grade A, at least 98% active pixels; grade B, at least 96% active pixels; minimum of 5 active pixels between any two inactive ones; contact the factory regarding availability of grade B arrays Operating Temperature -50°C with water circulation; -60°C with chilled coolant circulation

Thermostating Precision ±0.040°C over entire temperature range Typical Dark Charge < 300 (100 µm pixels) or < 550 counts/pixel-second (250 µm pixels) at -50°C Scan Rate 50 to 150 kHz Spectral Rate 560 spectra/second, InGaAs1.7-256, 150 kHz; 280 spectra/second, InGaAs1.7-512, 150 kHz Detector Controllers ST-121 Controller for standard ISA bus interface; ST-116 Controller for GPIB interface

The Leader in Spectroscopic Detection 39