SR200 - Gate Scanner
Stanford Research Systems - SRS
SR200 - Gate Scanner
The SR200 Gate Scanner module is designed to automate waveform recovery with the SR250 and SR255 Gated Integrator modules.
The SR200 Gate Scanner module is designed to automate waveform recovery with the SR250 and SR255 Gated Integrator modules.
Waveform recovery is done by slowly scanning the gate of the integrator over the waveform of interest. Both the SR250 and SR255 modules have external gate delay control inputs.
SR235 - Analog Processor
Stanford Research Systems - SRS
SR235 - Analog Processor
The SR235 Analog Processor provides a variety of convenient signal processing functions on up to two inputs.
The SR235 Analog Processor provides a variety of convenient signal processing functions on up to two inputs.
Background subtraction, ratioing and logarithmic compression are just a few of the functions which can be implemented with the SR235.
- 36 functions
- 36 Dual inputs
- 36 Post filtering and gain adjustment
- 36 2 % basic accuracy
SR240A - Preamplifier
Stanford Research Systems - SRS
SR240A - Preamplifier
The model SR240A, DC to 350 MHz Preamplifier is a 4-channel, DC-coupled instrument with a gain of 5 per channel. The amplifiers can be used independently or cascaded to provide gains of 5, 25, 125 or 625.
The model SR240A, DC to 350 MHz Preamplifier is a 4-channel, DC-coupled instrument with a gain of 5 per channel. The amplifiers can be used independently or cascaded to provide gains of 5, 25, 125 or 625.
The fast rise time, low noise, and DC accuracy of the SR240A make it the ideal instrument for use with photomultiplier tubes and photodiodes.
- Four independent channels
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DC to 350 MHz bandwidth
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1 ns rise and fall time
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Voltage gain to 625
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6.4 nV/√Hz input noise
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50 W input and output impedance
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3 ns overload recovery
- Excellent phase linearity
SR245 - Computer Interface
Stanford Research Systems - SRS
SR245 - Computer Interface
The SR245 Computer Interface, GPIB and RS-232 module is a powerful tool for data acquisition. It provides both an analog and a digital interface between your computer and your experiment.
The SR245 Computer Interface, GPIB and RS-232 module is a powerful tool for data acquisition. It provides both an analog and a digital interface between your computer and your experiment.
- Eight analog I/O ports
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8-bit digital I/O port
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Two TTL I/O ports
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RS-232 and GPIB interfaces
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3500 point sample memory
- Simple command structure
SR250 - Gated Integrator
Stanford Research Systems - SRS
SR250 - Gated Integrator
The SR250 Gated Integrator, with 2 ns minimum gate width, is a versatile, high-speed, NIM module designed to recover fast analog signals from noisy backgrounds.
The SR250 Gated Integrator, with 2 ns minimum gate width, is a versatile, high-speed, NIM module designed to recover fast analog signals from noisy backgrounds.
- Gate width from 2 ns to 15 µs
(expandable to 150 µsec) -
Internal rate generator
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Active baseline subtraction
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Shot-by-shot output
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Gate output for precise gate timing
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Average 1 to 10,000 samples
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DC to 20 kHz repetition rate
- Low jitter (<20 ps + 0.01% of delay)
SR255 - Fast Sampler
Stanford Research Systems - SRS
SR255 - Fast Sampler
The SR255 Fast Sampler module, 100 ps minimum gate width, is a gated integrator with four discrete, user-selected gate widths from 100 ps to 1 ns.
The SR255 Fast Sampler module, 100 ps minimum gate width, is a gated integrator with four discrete, user-selected gate widths from 100 ps to 1 ns.
All of the necessary electronics are built into this high-speed module including an A/D, D/A and a PROM correction circuit to eliminate the inherent non-linearities in the sampling bridge.
- Gates of 100 ps, 200 ps, 500 ps & 1 ns
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Jitter <2 ps rms
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Droopless analog output
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Linear over full range
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20 ns insertion delay
- Trigger rates to 50 kHz
SR272 - Data Acquisition Windows Software
Stanford Research Systems - SRS
SR272 - Data Acquisition Windows Software
The SR272 Boxcar System software provides simplified data acquisition for the SR250 Gated Integrator and the SR255 Fast Sampler modules.
The SR272 Boxcar System software provides simplified data acquisition for the SR250 Gated Integrator and the SR255 Fast Sampler modules.
With the SR245 Computer Interface module, it provides a complete pulsed data acquisition system.
- Data acquisition software for SRS Boxcar Systems
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Automatic scan logging
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Gate delay scans
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Sample rates up to 1100 samples/s
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Single or multiple shots per bin
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Send commands to other instruments
- RS-232 and GPIB communication
SR280 - NIM Mainframe & Display
Stanford Research Systems - SRS
SR280 - NIM Mainframe & Display
The SR280 is the Boxcar Averager System mainframe. The mainframe is NIM (Nuclear Instrumentation Module) compatible and has twelve slots.
The SR280 is the Boxcar Averager System mainframe. The mainframe is NIM (Nuclear Instrumentation Module) compatible and has twelve slots.
The three right-most slots are filled by the display module and unregulated power supplies, leaving nine slots for other NIM modules. The DC power supply regulators are mounted on a heat sink on the rear of the mainframe.
- NIM compatible mainframe
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9 available slots
- Analog, digital and bar graph meters
Electronic Test & Measurement 
