Instrument Reservations

Reservations are made through the workstation ‘Cruella’ (go to, user name ‘nmr’) which can be accessed with the text-based Res1B program.

If you are using a Windows computer, you will need an SSH program to access the Res1B software. MIT IS&T provides one, called SecureCRT, to the MIT community. If you are using a Mac or Unix computer you can use a terminal window;  you do not need to download any additional software.

A single page instruction summary for accessing Cruella and reserving instrument time with Res1B (for all types of computers) is available from DCIF staff; send an email to us at You can also check out the one-page guide here: Res1B guide


Reservations are required for four of the mass spectrometers: the  GCMS, AccuTOF-DART, MALDI, and the Q-TOF. They are required for two of the NMR instruments (the Neo501 and the Avance401) except during walk-on time, and for the EPR, FTIR, polarimeter, and HPLC. All other instruments run in automation 24 hours per day, 7 days per week.

Please email with any questions.