AL-1809-0424 Rev E.pdf

This is a technical engineering drawing for a Laser Cavity Ring-Down Spectrometer (CRDS) Packaging Design, specifically a PTC laser-heating design with a breadboard mount. The drawing is document number AL-1809-0424, Revision E, released by Lawrence Livermore National Laboratory in California.

The drawing provides comprehensive specifications for the spectrometer's physical assembly and components, including detailed dimensional measurements in millimeters for the cavity structure, optical mounting points, and mechanical interfaces. Key components shown include a laser housing unit (right side, column 1), circular optical cavity chambers with specified diameter measurements, mounting brackets, and internal plumbing configurations for gas flow. The document includes multiple detail views (Detail A, See Detail A) that highlight specific assembly points and connection interfaces. Critical specifications noted include surface finish requirements (per ASME 14.5M), material requirements, and dimensional tolerances. The drawing uses standard engineering notation with cross-sectional views, exploded perspectives, and precise measurement callouts throughout. This appears to be an internal laboratory technical specification document rather than a federal contract solicitation document.