MAGNETIC FIELD MEASURING DEVICE, MANUFACTURING METHOD OF CYCLOTRON, AND CYCLOTRON

• Main Author: EBARA YUTA
• Format: Patent
• Language: English; Japanese
• Published: 31.03.2022
• Subjects: ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; MEASURING; MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES; PHYSICS; PLASMA TECHNIQUE; PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OFNEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMICBEAMS; TESTING

To provide a magnetic field measuring device, a manufacturing method of a cyclotron, and a cyclotron, which can suppress disconnection of a cable for magnetic field measurement.SOLUTION: A magnetic field measuring device 1 includes a Hall sensor 21 that is arranged between a pair of magnetic poles 55A and 55B of a cyclotron 51 and measures a magnetic field distribution. Therefore, the magnetic field measuring device 1 can measure the magnetic field distribution between the pair of magnetic poles 55A and 55B with the Hall sensor 21. A cable 20 extends from a center portion side of the cyclotron 51 to an outer side in a radial direction and reaches a side wall 53a arranged on outer peripheral sides of the magnetic poles 55A and 55B. In this case, unlike a configuration of extracting the cable 20 from the center portion of the cyclotron 51, the influence of twisting can be reduced using a space between the center portion and the side wall 53a even when the Hall sensor 21 is rotated.SELECTED DRAWING: Figure 2 【課題】磁場測定用のケーブルの断線を抑制できる磁場測定装置、サイクロトロンの製造方法、及びサイクロトロンを提供する。【解決手段】磁場測定装置１は、サイクロトロン５１の一対の磁極５５Ａ，５５Ｂの間に配置され、磁場分布を測定するホールセンサ２１を備える。従って、磁場測定装置１は、ホールセンサ２１によって、一対の磁極５５Ａ，５５Ｂの間の磁場分布を測定することができる。ここで、ケーブル２０は、サイクロトロン５１の中心部側から径方向の外側へ延びており、磁極５５Ａ，５５Ｂの外周側に配置される側壁５３ａに及ぶ。この場合、サイクロトロン５１の中心部からケーブル２０を引き出す構成とは異なり、ホールセンサ２１を回転させた場合であっても、中心部と側壁５３ａとの間の空間を利用して捻れの影響を低減できる。【選択図】図２