BMM Goniometer Users Manual# BMM is NIST’s Beamline for Materials Measurement. Goniometer User 1. Introduction to BMM 1.1. TL;DR 1.2. Essential links 1.3. BMM and Building 743 1.4. Acknowledgements 1.5. A note about copyright 2. Motors and Coordinated Motions 2.1. Goniometer axes 2.2. Slits 2.3. Attenuator 2.4. Goniometer table 2.5. Photon delivery system 3. Detectors 3.1. Measurement Time 3.2. Monitor 3.3. Mythen 3.4. Eiger 3.5. Pilatus 3.6. Optical Cameras 4. Goniometer alignment for XRR 4.1. XRD mode of the Photon Delivery System 4.2. Direct beam camera 4.3. Slit alignment 4.4. Horizontal detector alignment 4.5. Mythen Calibration 5. X-ray Reflectivity 6. Command cheatsheet 6.1. General commands 6.2. Alignment scans 6.3. Measurement scans