A Mechanical Design of a High Vacuum Chamber with Mounting Racks for the Wide-Band Microwave Fabry-Pérot Resonator

Disciplines

Chemistry | Mathematics | Mechanical Engineering

Abstract (300 words maximum)

High vacuum systems permit supersonic expansion of pulsed molecular beams, so collision broadening is minimized, achieving high-resolution spectra; because of this, they are important for studying rotational spectroscopy in microwave frequency bands. This research focuses extensively on the mechanical design of a single high vacuum chamber that includes multiple mounting racks to fully support a narrow-band Fabry-Pérot resonator. The chamber must accommodate eighteen and three-quarters inch diameter reflective mirrors, each possessing a forty-inch focus length, to accomplish 1,000–10,000 microwave pulse reflections prior to free-induction-decay (FID) signals. Given laboratory constraints, the system is designed to function within each limited access space, using only single-phase, 120-V power.

To achieve this purpose, the vacuum chamber will incorporate several vacuum feedthroughs, in addition to each modified JIS (B2290) 500-mm I.D. VG/VF flange for sealing and each tori-spherical tank head, including every ASA 11” O.D. flange for connection to a Varian VHS-6 oil diffusion pump. Inside, mounting racks will help with precisely positioning and adjusting the Fabry-Pérot resonator mirror. The research methodology combines ready-made vacuum parts with a literature review and design using SolidWorks.

This cross-disciplinary project expertly bridges natural sciences and engineering, enabling students to cultivate large expertise in mechanical system design, vacuum technology, and microwave spectroscopy. The project’s outcome will result in growing comprehension of high-precision vacuum systems, and the project will also strengthen teamwork and problem-solving skills. Hands-on experience with 3D modeling, motion control, and data analysis will also be gained. Ultimately, the integration of design and research development will be purposeful for the advancement of engineering within chemistry.

Academic department under which the project should be listed

CSM - Chemistry and Biochemistry

Primary Investigator (PI) Name

Dr. Lu Kang

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A Mechanical Design of a High Vacuum Chamber with Mounting Racks for the Wide-Band Microwave Fabry-Pérot Resonator

High vacuum systems permit supersonic expansion of pulsed molecular beams, so collision broadening is minimized, achieving high-resolution spectra; because of this, they are important for studying rotational spectroscopy in microwave frequency bands. This research focuses extensively on the mechanical design of a single high vacuum chamber that includes multiple mounting racks to fully support a narrow-band Fabry-Pérot resonator. The chamber must accommodate eighteen and three-quarters inch diameter reflective mirrors, each possessing a forty-inch focus length, to accomplish 1,000–10,000 microwave pulse reflections prior to free-induction-decay (FID) signals. Given laboratory constraints, the system is designed to function within each limited access space, using only single-phase, 120-V power.

To achieve this purpose, the vacuum chamber will incorporate several vacuum feedthroughs, in addition to each modified JIS (B2290) 500-mm I.D. VG/VF flange for sealing and each tori-spherical tank head, including every ASA 11” O.D. flange for connection to a Varian VHS-6 oil diffusion pump. Inside, mounting racks will help with precisely positioning and adjusting the Fabry-Pérot resonator mirror. The research methodology combines ready-made vacuum parts with a literature review and design using SolidWorks.

This cross-disciplinary project expertly bridges natural sciences and engineering, enabling students to cultivate large expertise in mechanical system design, vacuum technology, and microwave spectroscopy. The project’s outcome will result in growing comprehension of high-precision vacuum systems, and the project will also strengthen teamwork and problem-solving skills. Hands-on experience with 3D modeling, motion control, and data analysis will also be gained. Ultimately, the integration of design and research development will be purposeful for the advancement of engineering within chemistry.