Section V: AD Series Detection Systems

Transcription

1 Section V: AD Series AD110B 0B Photobyte - P System AD131 Photodetector Module Cooled CCD Cameras AD202 AD205 AD206 Kestr estralspec Softwar are Data Acquisition 57

2 AD110B Photob obyte - P Photomultiplier omultiplier System Provides a complete detection system for CVI's Digikrom monochromators. Easy RS232 interface. Wide selection of PMTs. Power er Supply,, Amplifier,, Housing, Softwar are e - In ONE Pack ackage age The AD110 is a convenient computer controlled photomultiplier detection system for use with CVI's Digikröm line of monochromators. It features a detector housing that has a dynode divider chain and direct anode connection, mounts directly to exit-slit ports of Digikröm monochromators, and accommodates sideon photomultiplier tubes. (PMT's must be ordered separately.) It also features the Smart Photomultiplier Amplifier, a compact electronic unit containing the preamplifier and high voltage power supply for the PMT. Coaxial cables for the high voltage and PMT output current signals connect between the detector housing and the amplifier unit. The preamplifier transforms the PMT current signals into analog voltage signals suitable for analog-to-digital conversion. The entire operation, including wavelength and bandpass selection, is controlled with a customer-supplied PC. (The Digikröm monochromators connect to one of the computer's serial ports.) An easy to use program is also included that allows full control of both PMT and monochromator. It graphically displays wavelength versus intensity, intensity versus time and allows ASCII data storage for importing to other user interfaces as desired. 58

3 Specifications: Wavelength Range: Per PMT detector (see below) High Voltage Range: VDC A/D Resolution: 12 bit (Successive Approximation) D/A Channels: 1 (Programmable Control of HV) D/A Resolution: 12 bit (Input and Output) Input Voltage: ± 5 VDC Max Integration Time per Step: 10sec Minimum Data Speed: 30msec A/D Accuracy: 0.015% of Reading ± 1 bit Differential Non-Linearity: ± 1 LSB Amplification Gains: x1, x2, x4, x8, x16 (programmable) Trigger Mode: By Software, Pacer, and External Trigger. Overvoltage: ± 30 VDC maximum Software: Demonstration control program and LabView driver included. SP offers s the follo ollowing PMTs for or use with the AD110: 0: SP Part # Code PMT Type Wavelength Range and Spectral Response AD311 *R 928P nm; S-20 (extended) AD321 R nm; S-5 AD322 R nm; S-1 AD323 R nm; S-20 AD324 R nm; GaAs (extended) * selected for low noise Other PMTs are available from SP by request ABSOLUTE SENSITIVITY - MILLIAMPERES / WATT Data Acquisition ScreenShot S-5 S-1 S WAVELENGTH (nm) GaAs Typical Photocathode Spectral Response Characteristics Ordering Information: Please indicate product number plus description when ordering. AD110B Photobyte - P Photomultiplier System AD100 PMT Housing, for 1-1/8 side on PMTs from AD3xx series AD311 PMT Type - R 928 AD321 PMT Type - R 212 AD322 PMT Type - R 406 AD323 PMT Type - R 777 AD324 PMT Type - R

4 AD131 Photodetector Module 190nm to 4.8µm Combines SP photodiode detector, programmable charge integrator, and data conversion in a compact package. Expandible with add-on modules for cooled sensor capability. Null function for background noise subtraction. Programmable gain ranges. Windows based data acquisition software included. Easy to install and use on any SP Monochromator. Internal data averaging. Compact, Convenient, Affor ordable The AD131 is a computer controlled data acquisition device for photodiode detectors, covering a wide wavelength range with Si, InGaAs, PbS, and PbSe photocells from the AD4x series. The unit contains an internal programmable charge integration amplifier, a 20-bit A/D converter, and a microprocessor with a RS232 interface. Signal processing functions take place internal to the AD131 to greatly reduce the noise level of the measured signal, including Correlated Double (CDS) and signal oversampling for digital filtering. Windows based software allows for stand-alone operation or integrated control and data acquisition with any of the Digikröm line of monochromators. Data Acquisition ScreenShot Adding the AD131-TC Thermoelectric Controller module to the AD131 enables the use of AD4x series heads with cooling capability (designated by a C on the model name). AD4x heads are easily exchanged on the same AD131 unit. 60

5 SP Detector Part # Type Size Range Temp Specifications: Wavelength Range: Per detector (see above) A/D Resolution: 20 bit Sample Rate: Variable; integration period dependent. Max. Samples Averaged per Measurement: 128 Input Current Ranges: 7.8mA max. Internal Test Current: 100nA ± 20nA Communications: RS232 Software: Windows control program for stand-alone use or integrated with SP. Ordering Information: Please indicate product number plus description when ordering. AD131 Photodetector Module AD V Photodetector Module (220Vac input) AD131-TC Thermoelectric Controller Module (order detector heads separately) AD421 AD427 AD429 AD430 AD431 Sensitivity Detector Head Type - Si Detector Head Type - PbS Detector Head Type - PbSe Detector Head Type - InGaAs Detector Head Type - Si/InGaAs The following detector heads are for use with the AD131-TC Thermoelectric Controller Module Dark resistance or current AD421 Si 5.8x C 0.4 A/W at 1550 nm 20 pa AD427* PbS 3x C 5x10 4 V/W at 2200 nm 0.5 to 2.5 MΩ AD429* PbSe 3x C 5x10 2 at 4 mm 0.3 to 1.5 MΩ AD430 InGaAs 3 dia C 0.95 A/W at 1550 nm 15 na AD431 Si/InGaAs 2.4x C 0.45 A/W at 0.94 mm 30 pa 1 dia 25 C 0.55 A/W at 1.55 mm 1 na The follo ollowing requir equire e the AD131-T 1-TC Thermoelectric Controller oller module in addition to the AD131 1 Photodetect odetector or module. AD427-C* Cooled PbS 4x C 8x10 4 V/W at 2.2mm 0.5 tp 10 MΩ AD429-C* Cooled PbSe 3x C 1x10 3 V/W at 4 mm 1.7 to 7 MΩ AD430-C Cooled InGaAs 3 dia C 0.95 A/W at 1.55 mm 1 na AD431-C Cooled Si/InGaAs 2.4x C 0.45 (25 C) at 0.94 mm 30 pa 1 dia -10 C 0.55 at 1.55 mm 0.07 na *Requires 450 Hz chopped optical signal D* λ (cm Hz ½ /W) D* λ (cm Hz ½ /W) Radiant Sensitivity (ma/w) Typical Spectral al Response Characteristics acteristics Ge (25 C) PbSe (25 C) Specific Detectivity Wavelength (nm) AD221, Si Photodiode -20 C -77 C PbS (25 C) D* λ (cm Hz ½ /W) D* λ (cm Hz ½ /W) Photo Sensitivity (A/W) Si (25 C) Standard Types InGaAs (25 C) AD231, Si/InGaAs Photodiode C -20 C InGaAs (25 C) AD230, InGaAs Photodiode -77 C 25 C AD227, PbS Photocell 25 C AD229, PbSe Photocell 6 7 AD427-C AD429-C AD430-C AD431-C Detector Head Type - PbS, TE Cooled Detector Head Type - PbSe, TE Cooled Detector Head Type - InGaAs, TE Cooled Detector Head Type - Si/InGaAs, TECooled 61

6 Cooled CCD Cameras as Choose a high quality cooled CCD Camera to package with your 1/8 meter,, 1/4 meter,, or 1/2 meter Digikröm Spectrograph! Sophisticated spectroscopic applications require the ultra low-noise and low-temperature cooling features of cameras that normally cost tens of thousands of dollars. By employing superior optical coupling, stray light rejection, and versatile data acquisition software you can assemble your own affordable high-performance CCD/Spectrograph system. By offering the best value in CCD spectroscopy, you can select high resolution spectrographs for use with cameras operating from 200nm to 1100nm. Multiple input imaging is also supported by the larger 1/4 meter and 1/2 meter spectrograph systems. Cooled CCD cameras are available for your specific application and budgetary needs. such as fibers/fiber couplers, special probes, and light sources are also available to help complete your system. 62

7 Camera Specifications AD202 AD205 AD206 Wavelength Range nm nm nm Array (pixels) 512 x x x 250 Array Dimensions 12.3 x 2.9mm 24.6 x 2.9mm 24.6 x 6.0mm Pixel Dimensions 24 x 24µm 24 x 24µm 24 x 24µm Array Manufacturer Hamamatsu Hamamatsu Hamamatsu S S S Read Noise typical (e-rms) e e e- Dark Count (e-/pixel/sec) -20 C -20 C -20 C Well Depth (binned) 600,000 e- 600,000 e- 600,000 e- Cooling TE -40 C TE -40 C TE -40 C Binning 1 x 1 to 8 x 64 1 x 1 to 8 x 64 1 x 1 to 8 x 64 on chip on chip on chip Exposure Time 0.03 sec min sec min sec min. Remote Triggering Yes Yes Yes Shutter Yes Yes Yes Digital Resolution 16-bits 16-bits 16-bits Illumination Back Back Back Additional AD2xx Series System Specifications Frame Sizes Full frame and subframe modes. Cooling Thermoelectric cooler with forced air. 45 C below ambient temperature. Software programmable temperature. Temperature Stability ±0.1 C System Gain 3.0 e-/adu Camera Head 6061-T6 Aluminum body, hard blue anodized. Tripod mount, BBAR coated silica windows. Camera head is 6x6 inches x 1.8 inches thick, plus additional 1.2" for heat sinks and fans. Weight is 3 lb. Operating Environment Temperature: -30 to 80 F. Relative humidity: 10 to 90% noncondensing PC Interface Parallel port. 10' cable. 37 pin D connector at camera end. 25W maximum power with shutter open and cooling maximum. Software KestralSpec for Windows (sold separately) Development drivers included Options Remote trigger; remote shutter. Quantum Efficiency (%) Back Illuminated Front Illuminated UV Wavelength (nm) Fig. 2. Quantum efficiency curves for front and back illuminated CCDs. IR 63

8 SELECTION GUIDE (at 500nm) AD202 AD205 AD206 The following SP Spectrographs are compatible with our cooled CCD Cameras Bandwidth Resolution Bandwidth Resolution Bandwidth Resolution Spectrographs (nm) nm/pixel (nm) nm/pixel (nm) nm/pixel CMSP110 (maximum Flat Field = 12mm) 1200 g/mm n/a n/a n/a n/a 600 g/mm Order AD300 n/a n/a n/a n/a 300 g/mm n/a n/a n/a n/a 150 g/mm n/a n/a n/a n/a DKSP240 (maximum Flat Field = 26mm) 1200 g/mm g/mm g/mm g/mm DKSP242 (maximum Flat Field = 26mm) 1200 g/mm g/mm g/mm g/mm DKSP480 (maximum Flat Field = 26mm) 1200 g/mm g/mm g/mm g/mm Ordering Information: Please indicate product number plus description when ordering. AD202 AD205 AD206 CCD for CM or DK Series CCD for DK Series CCD for DK Series 64

9 KestrelSpec Data Acquisition Software Specifically Designed for CCD Spectroscopy and Digikröm Spectrographs "Laser beam profiler" display KestrelSpec has versatile graphing and data analysis options. The Control Palette (right) yields quick access to numeric keypad, peak finder, zooming, panning, XY cursor and other tools. Data a Display y and Analysis sis Image display: 256 grays positive/negative, 23-level pseudocolor with quantitative, color coded legend. 2-D and 3-D overlays, vertically stacked curve plots. Channel profile Y(t) plot (Z axis slice). Line, bar, cityscape and scatter plot styles with color or patterned fill. Graphic spectrum directory with mini-curve plots. Spectral calibration using either curve fits or one-point KestrelCal for grating spectrographs. Click on spectrum to select points for nth order polynomial regression curve used in baseline flattening. Real-time peak finder determines centroid, width. Real-time XY cursor pixel readout for curves, images. Add, subtract, multiply or divide curves with other spectral curves, or apply a constant value to curves. Smooth curves according to an adjustable threshold. Laser beam profiler display with XY profile graphs. Renormalize X axis accurately linearizes spectra. A Join Curves function where curves with overlapping spectral regions can be joined into one curve. Export curve data as ASCII text. Import curve data in standard ASCII spreadsheet format. Export images as 16-bit binary-integers (raster format) or 8-bit bitmap format. Import images from bitmap or binary-integer data files. "Swap byte" capability for importing 16-bit image data from Macintosh files to Windows, or Window files to Macintosh. Print plots and images in grayscale or color. Copy plots or images to the clipboard for pasting into other documents. Data a Acquisition Select arbitrary areas from the CCD for spectral curves. Up to 10,000 curve memories in RAM for spectral plots. Select CCD pixel-grouping (binning) modes. Adjustable anti-blooming for suppression of saturated image intensity levels. Fully adjustable temperature control and readout. Maximum scanning rate up to 1.5 frames/sec depending on CCD binning mode and number of curves per image. 16 bit-per-pixel images. 32 bit-per-pixel spectral curves. Curve data can be either long integer or floating point. Programmable exposure sequence with adjustable delay intervals. Sum multiple image exposures into spectral curves. Use external in/out triggers on exposures. Real-time, dark-background, and flat-field image buffers. background subtraction and flat-field correction of images and curves. flip image horizontal when image is reversed. save of images and curves to disk. Conversion of data to log or absorbance scales. Calibrate spectra in nm and Raman cm-1 shift. Autoscan and autocalibrate spectra with fully integrated spectrograph control option. Ordering Information: Please indicate product number plus description when ordering. K-APG KestrelSpec for Apogee Windows version 65