Optical System Design for High-Energy Particle Beam Diagnostics

Abstract

Abstract. Radiation generated by high-energy particle beams is widely used to characterize the beam properties. While the wavelengths of radiation may vary from visible to x-rays, the physics underlying the engineering designs are similar. In this tutorial, we discuss the basic considerations for the optical system design in the context of beam instrumentation and the constraints applied by high-radiation environments. We cover commonly used optical diagnostics: fluorescence flags, visible and x-ray synchrotron radiation imaging. Emphases will be on achieving desired resolution, accuracy, and reproducibility.

A Design Report for the Optical Transition Radiation Imager for the LCLS Undulator

“…[Camera Pixel Size] Numerical simulation showed that the finite size of the camera sensor pixel makes the following contribution to the rms resolution [7]:…”

“…Integration of the intensity over ycoordinates resulted in a double-peaked profile of x-coordinates (Figure 3.11B). Fitting the profile to Gaussian functions [7,15] Hence we can use an average value of 5 µm as the diffraction-limited resolution over the entire visible region.…”

The optical diagnostic beamline at the Canadian Light Source

“…A general discussion of beam diagnostics with synchrotron light is covered in Refs. [1][2][3][4][5], while a few site-specific examples are included in Refs. [6][7][8][9][10][11][12][13][14][15].…”

Nonintercepting Imaging Diagnostics for the APS Injector during Storage Ring Top-Up Operations

“…There are OSR ports on both the AR and IS, and there are both an OSR port and an x-ray synchrotron radiation (XSR) port on the storage ring. The SR OSR is typically used for bunchlength measurements with a streak camera while the XSR is used with a pinhole camera to provide ~ 22 µm (σ) resolution beam size imaging [6].…”