A large selection of printing and plotting devices are available in the facility for student use, and all NMR data is remotely stored in back-up servers by the IT specialists at Boston College. Other remote spectrometer access options (such as VNC) are also in place for teaching and maintenance purposes. Users can also remotely access and transfer data to their personal computers within the Boston College network with ease. Two additional Dell workstations running the same software as the spectrometers (as well as a variety of other data processing software programs) allow users to process their data to prepare reports and presentation graphics in the facility. A combination of on-line and open-access reservation schemes are used to ensure the most efficient use of the instruments. The probes available in the Center allow NMR users to observe most spin-active nuclei and perform nearly all state-of-the-art 1D, 2D, and multi-dimensional liquids NMR experiments.
Additionally, all the NMR systems except for the INOVA 500 are equipped with an automatic probe tuning and matching ProTune® accessory. All the spectrometers are equipped with pulsed-field gradients and variable-temperature controllers, and are running the most up-to-date Varian VNMRJ software on Dell OptiPlex 9010 computers in the Linux Centos 6.10 operating system.
Our lab houses an 800 MHz/ 527 GHz MAS-DNP spectrometer, a 600 MHz, a 400 MHz, and two dissolution-DNP polarizers (a Bruker prototype at 6.7 T/ 188 GHz and a home-built cryogen-free system at 9.4 T/ 263 GHz).įeel free to circulate the advertisement to whoever might be interested in this position.Five Varian high-field NMR spectrometers are maintained and operated in the Magnetic Resonance Center in the Boston College Chemistry Department: a 600 MHz VNMRS, a 500 MHz VNMRS, a 500 MHz INOVA, a 400 MHz VNMRS, and a 400 MHz MR-400.
Besides, we will build a low-cost EPR circuitry in the same probe to allow the characterization of the DNP polarizing agents using EPR spectroscopy. Bruker is the worlds leading supplier of electron paramagnetic resonance spectrometer (EPR) systems with more than 50 years of experience. Hence, candidates with experience in assembling rf and microwave components is highly desirable. The array of instruments that has to be built includes microwave waveguides, resonant cavity, and rf resonance circuitry. The candidate needs to build a DNP NMR probe with optimized rf & microwave delivery from the source to the sample at a cryogenic condition. The main goal of the project is to develop rf and microwave instrumentation for Dynamic Nuclear Polarization (DNP) techniques at high magnetic fields, i.e., ≥ 9.4 T/ 400 MHz/ 263 GHz. Initial contract is for one year, and renewable at the end of each contract year. There is a postdoc position available in Kong Ooi Tan’s team at ENS Paris starting in spring 2021.
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