The University of Ottawa is pleased to invite qualified proponents to submit a proposal for a nuclear quadrupole resonance (NQR) spectrometer console and robotic tuning controller to support research programs on (i) the characterization of materials using solid-state nuclear magnetic resonance (SSNMR) observables and on (ii) electrocatalysts and photocatalysts with environmental applications.
We require a dedicated nuclear quadrupole resonance (NQR) spectrometer console and associated ancillary equipment including power amplifier, preamplifier, computer and software, probe(s), and autotuning controller. The instrument should be capable of recording NQR spectra across a broad frequency range which covers a wide variety of nuclear isotopes. Autotuning capabilities and variable temperature capabilities are critical considerations.
Mandatory Requirements:
Nuclear Quadrupole Resonance Console:
1.1 Must include at least one radiofrequency channel with frequency range of 5 MHz or lower to 300 MHz or higher
1.2 Must include Phase shifting ≤ 10 ns
1.3 Must include Phase modulation with 8-bit resolution or better
1.4 Must include Amplitude switching ≤ 20 ns
1.5 Must include Frequency resolution of 0.2 Hz or better
1.6 Must include 5 x 10-10 / day frequency stability or better
1.7 Must include digital receiver with 14-bit 50 MHz ADC with oversampling, or better
1.8 Must include 3.3 MHz receiver bandwidth, or better
1.9 Must include digital filtering bandwidth from 1600 Hz to 12.5 MHz or better
1.10 Must include < 1 ms receiver recovery time
1.11 Must include signal averager
1.12 Must include Minimum pulse width 100 ns with 10 ns resolution, or better
1.13 Must include Minimum acquisition recycle delay of 10 ms or better
Computer:
2.1 Must include a computer with Microsoft Windows
2.2 Must include a minimum of 8 GB RAM
2.3 Must include as minimum 1 TB hard drive
2.4 Must include DVD-ROM
2.5 Must include ethernet port
2.6 Must include software and license to operate the spectrometer
Radiofrequency Amplifier:
3.1 Must include 250 W power or more
3.2 Must cover from 5 MHz (or lower) to 300 MHz (or higher)
Probe Interface and Pre-Amplifier:
4.1 Must cover from 30 MHz (or lower) to 300 MHz (or higher)
4.2 Must include appropriate transcoupler module(s) to cover frequency range
4.3 Must include required rf-shielded cables and connections
NQR Probe(s):
5.1 Must include one single-resonance NQR probe compatible with spectrometer
5.2 Must include tuning range 30 MHz (or lower) to 300 MHz (or higher)
5.3 Must include Rf power level maximum of 300 W or better
5.4 Must include exchangeable coils and sample containers to cover frequency range
5.5 Must include variable temperature range of -50 to +100°C or better
5.6 Must be compatible with provided autotuning accessory
Automatic Tuning and Matching Accessory:
6.1 Must include automatic tuning/matching controller compatible with probe and spectrometer console
6.2 Must have ability to tune and match in automated or manual mode
6.3 Must include frequency range of 30 to 300 MHz or better
6.4 Must include Bidirectional coupler and cables
6.5 Must include automated tuning/matching software compatible with computer and console
