title: Development of a novel aspherical mirror bender for an active grating.
abstract: A novel monolithic mechanical bender has been designed and fabricated to meet the requirements of an active polynomial grating in a new soft X-ray scattering and emission beamline at the National Synchrotron Radiation Research Center, Taiwan. This compact bender achieves nearly fixed center point under different bending conditions. Moreover, the compact bender can be bent to a desirable third-order polynomial surface profile to cancel the defocus and coma aberrations using two PZT actuators. Theoretical analysis reveals that the grating has unprecedented spectral resolving power. A detailed mechanical analysis has been conducted and a prototype bender was fabricated and tested. The results indicate that the performance of the bender is excellent and is therefore suitable to be used in the active grating.
authors.affiliation: National Synchrotron Radiation Research Center, Hsinchu Science-Based Industrial Park, Hsinchu 300, Taiwan. tctseng@nsrrc.org.tw
authors.forename: T C
authors.initials: TC
authors.lastname: Tseng
authors.forename: D J
authors.initials: DJ
authors.lastname: Wang
authors.forename: S Y
authors.initials: SY
authors.lastname: Perng
authors.forename: C K
authors.initials: CK
authors.lastname: Kuan
authors.forename: J R
authors.initials: JR
authors.lastname: Lin
authors.forename: S H
authors.initials: SH
authors.lastname: Chang
authors.forename: C T
authors.initials: CT
authors.lastname: Chen
mesh_terms: D017076:Computer-Aided Design; D004548:Elasticity; D004867:Equipment Design; D019544:Equipment Failure Analysis; D005246:Feedback; D009038:Motion; D055095:Optics and Photonics / Q000295:instrumentation*; D010812:Physical Stimulation / Q000295:instrumentation; D012542:Scattering, Radiation; D013314:Stress, Mechanical; D017356:Synchrotrons / Q000295:instrumentation*; D014159:Transducers; D014961:X-Ray Diffraction / Q000295:instrumentation* / Q000379:methods*