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66 -- Electron Paramagnetic Resonance Spectrometer

Notice Date
Notice Type
Contracting Office
Department of Commerce, National Institute of Standards and Technology (NIST), Acquisition and Logistics Division, 100 Bureau Drive, Building 301, Room B129, Mail Stop 3571, Gaithersburg, MD, 20899-3571
ZIP Code
Solicitation Number
Response Due
Archive Date
Point of Contact
Anita Tolliver, Contract Specialist, Phone (301) 975-6308, Fax (301) 975-8884,
E-Mail Address
The above referenced solicitation is hereby amended to incorporate required specifications for the Resonance Spectrometer. The due date for quotes, Thursday, May 8, 2003, remains unchanged. The Electron Paramagnetic Resonance Spectrometer shall meet the following specifications: (1) THE SPECTROMETER SHALL: Be continuous wave; Have a 10 inch magnet (72mm air gap, maximum field= 15kG, impedance= 3O), 12kW power supply, and 12kW heat exchanger; Have an X-band high power microwave bridge: Power =60dB, Frequency Range = 9-10 GHz, Magnetic Field = 3400G, Have safety circuits; (2) THE SPECTROMETER SHALL HAVE A HIGH SENSITIVITY RESONATOR WITH AN OPTICAL PORT: Weak-pitch signal to noise: 3000:1, remote control of the bridge from same control unit (allowing for additional bridges), Output power digitally stepped in 1 dB increments: ?0.2 dB (0-60 dB), Direct digital power readout (mW, uW, nW), High dynamic range (6 MHz) Automatic Frequency Control (AFC) locking, Frequency response and gain matched to the source oscillator characteristics, Setup scan with real-time display, sweep with variable to 5mT, Up to 80 MHz tuning range, Matched reference arm delay line, Iris motor tuning connector, Coarse frequency readout to 3 digits or to a resolution of 1kHz, High power, low noise solid state source: 400mW, AFC stability 10-6, Preamplifier: 30Hz to 400kHz, Microwave frequency meter: 1kHz to 10GHz, Protection against damage through operator error. (3) THE SPECTROMETER SHALL INCLUDE STATE-OF-THE-ART COMPUTER, MONITOR, HARDWARE, SOFTWARE, AND PRINTER. The computer system shall include a dual processor Pentium PC (512MB memory, > 18GB system disk), CDROM Reader/Writer, floppy disk drive, Microsoft Windows or LINUX operating system, Microsoft Office products, a second autosensing Ethernet TX adapter, an 18inch monitor, keyboard, and mouse. The printer shall be of a color inkjet style. (4) THE SPECTROMETER SHALL BE COMPUTER CONTROLLED TO ALLOW FOR: Data Acquisition: graphical interface to handle complicated experimental set-ups, real time tasks, and multi-tasking/ multi-user operations, Field sweep, time scan, and power sweep. Spectrometer Control: microwave tuning (bridge and resonator) in a manual or automatic mode, -50G to + 23kG operating range, field accuracy better than ? 500 mG over full range, center field setting in 50 mG steps, sweep width setting in 100mG steps, 12-bit parallel sweep input and output, spectrometer status monitor for conditions and numerical values of various devices: field, microwave frequency, resonator Q, temperature, lock offset, diode current, and receiver level. Signal channel module: 6kHz to 100kHz: settable in 1 Hz steps, first and second harmonic, phase resolution 0.1 deg., phase stability 0.1 deg./deg.-hr., modulation output 1 mVpp - 10 Vpp, modulation reference 10 Vpp rectangular, input impedance 50 ohm, receiver gain dynamic range 106 dB, 1 dB steps, time constant 0.1 ms - 5.24 s, integrating ADC conversion 0.32 ms- 2.62 s per point, ADC resolution 8 - 22 bits, automatic calibration of phase and amplitude for any frequency. Signal Channel Module, 100 Hz to 6 kHz: settable in 1 Hz steps, first and second harmonic, operable in direct or cascade mode. Data Processing: standardized storage formats for all EPR related data, flexibility to change format if necessary, hardware independent computer readable storage format, support the exchange of EPR data sets (world wide), track data manipulation history, 1D and 2D manipulation, Complex and Real FFT, provide Windows functions: baseline correction, peak analysis, qualifiers, differentiation, integration, fitting with various algebraic functions (polynomial and exponential), data reduction, filtering, and automation, g factor transformation for field swept spectra, support in-house macros, display types: 1D: line, point, dot plot, numeric, histogram; 2D: density, contour, transparent, and hidden line.
Place of Performance
Address: U.S. Department of Commerce, National Institute of Standards and Technology, Shipping and Receiving, 100 Bureau Drive, Gaithersburg, MD
Zip Code: 20899-0001
Country: USA
SN00314113-W 20030501/030429213310 (fbodaily.com)
FedBizOpps.gov Link to This Notice
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