CAJ | 학술논문

上海同步辐射光源（SSRF）将为加拿大光源（CLS ）研制2台真空内插入件，包括1台周期长度为20 mm的真空内波荡器（IVU20）和1台周期长度为80 mm的真空内扭摆器（IVW80）。其中，真空内扭摆器的最小工作气隙为5.2 mm ，该气隙下磁力达到86 kN。为保证扭摆器内大梁在巨大磁力下的平面度和波纹管吊杆的安全，在内大梁的两侧安装了磁力平衡弹簧结构，ANSYS模拟结果表明内大梁的变形在允许范围内。为实现束流在通过插入件内部时轨道的准确，在真空内插入件内大梁上安装长线圈来产生磁场进行束流轨道的矫正。通过复合离子泵和非蒸散型吸气剂组合使用，2台插入件的真空度均好于5×10－7 Pa。
상해동보복사광원（SSRF）장위가나대광원（CLS ）연제2태진공내삽입건，포괄1태주기장도위20 mm적진공내파탕기（IVU20）화1태주기장도위80 mm적진공내뉴파기（IVW80）。기중，진공내뉴파기적최소공작기극위5.2 mm ，해기극하자력체도86 kN。위보증뉴파기내대량재거대자력하적평면도화파문관조간적안전，재내대량적량측안장료자력평형탄황결구，ANSYS모의결과표명내대량적변형재윤허범위내。위실현속류재통과삽입건내부시궤도적준학，재진공내삽입건내대량상안장장선권래산생자장진행속류궤도적교정。통과복합리자빙화비증산형흡기제조합사용，2태삽입건적진공도균호우5×10－7 Pa。
Two in‐vacuum insert devices (IDs) were developed by Shanghai Synchrotron Radiation Facility (SSRF) for Canada Light Source (CLS) ,including one in‐vacuum undulator with 20 mm period length (IVU20) and one in‐vacuum wiggler with 80 mm period length (IVW80) .For the wiggler ,the magnetic force will be 86 kN w hen magnet gap is 5.2 mm .To ensure inner‐girders flatness and bellow rods security under the great force ,compensational spring structure was assembled on inner‐girders .ANSYS simula‐ting results show that the deformation of inner girder is in permissible range .Long coils were installed in two IDs to rectify beam orbit .With combinational ion pumps and non‐evaporable getters (NEG) ,vacuum degrees of two IDs are better than 5 × 10-7 Pa .