Beamline
（重定向自Beamlines）
![Beamline at Brookhaven National Laboratory.](/Images/godic/202412/23/Beamline_at_Brookhaven_National_Laboratory2632.jpg")
![It is impossible to see the beam pipe on this beamline. However the section of the big beam pipe is used with a grid system for alignment with a laser, known as the laser pipe. This particular beamline is approximately 3 kilometers long.](/Images/godic/202412/23/LINAC2632.jpg")
![The exposed workings of a soft x-ray beamline and endstation at the Australian Synchrotron](/Images/godic/202412/23/Aust.-Synchrotron-Soft-X-ray-Beamline-Experimental-Station,-14.06.20072632.jpg")
![Inside the Optical Diagnostic Beamline (ODB) hutch at the Australian Synchrotron; the beamline terminates at the small aperture in the back wall](/Images/godic/202412/23/Aust.-Synchrotron,-eVBL-Experimental-Station,-14.06.20072632.jpg")
In accelerator physics, a beamline refers to the trajectory of the beam of accelerated particles, including the overall construction of the path segment (vacuum tube, magnets, diagnostic devices) along a specific path of an accelerator facility. This part is either