| SAOS04 加速器理論・ビームダイナミクス／ハドロン加速器１ 8月3日 シンポジオン会議室 16:10 - 16:30 |
| J-PARC MR 入射システムのアップグレード研究 |
| Upgrade study of J-PRAC main ring injection system |
| ○樊 �邨魁だ舒� 恒次，杉本 拓也（高エネルギー加速器研究機構），福岡 翔太（筑波大学），松本 教之，松本 浩（高エネルギー加速器研究機構） |
| ○Kuanjun Fan, Koji Ishii, Takuya Sugimoto (High Energy Accelerator Research Organization), Shota Fukuoka (University of tsukuba), Noriyuki Matsumoto, Hiroshi Matsumoto (High Energy Accelerator Research Organization) |
| The J-PARC main ring has the ambitious goal of accelerating proton beam with power of 750 kW. To realize the target, a high performance injection system is crucial. However, several problems due to the imperfect performance of the main elements have been observed in the present injection system, which deteriorate the injection beam orbit and cause beam losses. The problems will become big road blocks to high power operation. Thus, the injection system needs to be upgraded to correct the difficulties. The upgrade includes two new designed septa to reduce the leakage field, an optimized the kicker system to improve the kicker field, and a compensation kicker system to correct the injection errors. Careful 3D electromagnetic field simulations are performed to ensure the accuracy of magnets design. The 3D particle tracks in the entire injection region are studied thoroughly to guarantee the injection beam pass through the injection system without beam loss. |