Title :
The DTL/SDTL alignment of the J-PARC LINAC
Author :
Morishita, T. ; Asano, H. ; Ito, T. ; Ueno, A. ; Hasegawa, K. ; Naito, F. ; Takasaki, E. ; Tanaka, H. ; Yoshino, K. ; Ikegami, M.
Author_Institution :
JAEA, Tokai
Abstract :
The required alignment accuracy in the J-PARC linac is 0.1 mm in transverse direction. In the DTL/SDTL section, the fine alignment was carried out by using an optical alignment telescope along with the cavity installation. The displacement of the DTL by the unit tank connection was monitored by a laser tracker to obtain the tolerable displacement between unit tanks. The heights of cavities and magnets were compensated form the local settlement of the linac tunnel.
Keywords :
accelerator cavities; accelerator magnets; beam handling techniques; linear accelerators; optical tracking; proton accelerators; DTL/SDTL section; J-PARC linac; beam commissioning; cavity installation; laser tracker; linac tunnel; magnets; optical alignment telescope; tolerable displacement; transverse direction; unit tank connection; Floors; Indium tin oxide; Linear particle accelerator; Linearity; Magnets; Monitoring; Particle beams; Rails; Relays; Telescopes;
Conference_Titel :
Particle Accelerator Conference, 2007. PAC. IEEE
Conference_Location :
Albuquerque, NM
Print_ISBN :
978-1-4244-0916-7
DOI :
10.1109/PAC.2007.4440810
