Fiber-Optic Spectrometer and accessories The Research Accelerator Division at Oak Ridge National Laboratory is seeking to procure an Aventes Spectrometer and peripheral equipment, or a qualified domes... Fiber-Optic Spectrometer and accessories The Research Accelerator Division at Oak Ridge National Laboratory is seeking to procure an Aventes Spectrometer and peripheral equipment, or a qualified domestic equivalent. Interested offerors should refer to Attachment C- BOM - PR475880 Bill of Materials for detailed specifications.