IBIC2012 - List of Keywords (beam-transport)

Paper	Title	Other Keywords	Page
MOPB67	Development of Offner Relay Optical System for OTR Monitor at 3-50 Beam Transport Line of J-PARC	target, proton, optics, radiation	222
	M. Tejima, T.M. Mitsuhashi KEK, Ibaraki, Japan Y. Hashimoto, T. Toyama J-PARC, KEK & JAEA, Ibaraki-ken, Japan S. Otsu Mitsubishi Electric System & Service Co., Ltd, Tsukuba, Japan
	An extremely wide aperture relay optical system based on Offner system has been designed and constracted for OTR monitor at 3-50 beam transport line of J-PARC. Diagnostics for beam profile and halo are very important to optimize injection beam from RCS to MR in J-PARC. For this purpose, an OTR monitor is planed to install for an observation of image of the beam and halo after the beam collimators. Since opening of OTR is very wide due to small Gamma; 3.2, extremely wide aperture (500mrad) optics will necessary to extract OTR from file target. We designed Offner type relay optics for the effective extraction of OTR having F=0.83. The clear aperture will cover 100 x 100mm aria on the target screen. Results of optical testing and design of OTR monitor will present in this paper.

Paper

Title

Other Keywords

Page

MOPB67

Development of Offner Relay Optical System for OTR Monitor at 3-50 Beam Transport Line of J-PARC

target, proton, optics, radiation

222

M. Tejima, T.M. Mitsuhashi
KEK, Ibaraki, Japan
Y. Hashimoto, T. Toyama
J-PARC, KEK & JAEA, Ibaraki-ken, Japan
S. Otsu
Mitsubishi Electric System & Service Co., Ltd, Tsukuba, Japan

An extremely wide aperture relay optical system based on Offner system has been designed and constracted for OTR monitor at 3-50 beam transport line of J-PARC. Diagnostics for beam profile and halo are very important to optimize injection beam from RCS to MR in J-PARC. For this purpose, an OTR monitor is planed to install for an observation of image of the beam and halo after the beam collimators. Since opening of OTR is very wide due to small Gamma; 3.2, extremely wide aperture (500mrad) optics will necessary to extract OTR from file target. We designed Offner type relay optics for the effective extraction of OTR having F=0.83. The clear aperture will cover 100 x 100mm aria on the target screen. Results of optical testing and design of OTR monitor will present in this paper.