• NUCLEAR TECHNIQUES
  • Vol. 47, Issue 3, 030101 (2024)
Guangwei JIAO1, Shunqiang TIAN1、2、*, Shengwang XIANG1, Ya ZHU1, Xinzhong LIU1, and Shuai WU1
Author Affiliations
  • 1Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201204, China
  • 2Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China
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    DOI: 10.11889/j.0253-3219.2024.hjs.47.030101 Cite this Article
    Guangwei JIAO, Shunqiang TIAN, Shengwang XIANG, Ya ZHU, Xinzhong LIU, Shuai WU. Installation and commissioning of accelerators associated with the new beamline in synchrotron radiation light source[J]. NUCLEAR TECHNIQUES, 2024, 47(3): 030101 Copy Citation Text show less
    Schematic diagram of the magnet array of the insertion devices
    Fig. 1. Schematic diagram of the magnet array of the insertion devices
    Mechanical diagram of the installation of the double-canted insertion devices in the fourth straight section (The left side is the IVU and the right side is the Wiggler. A represents the small diode that generates the double-canted angle, and B represents the closed-orbit distortion compensation coil of the ID)
    Fig. 2. Mechanical diagram of the installation of the double-canted insertion devices in the fourth straight section (The left side is the IVU and the right side is the Wiggler. A represents the small diode that generates the double-canted angle, and B represents the closed-orbit distortion compensation coil of the ID)
    Spectral brightness (a) and flux (b) of 04IVU and 04Wiggler
    Fig. 3. Spectral brightness (a) and flux (b) of 04IVU and 04Wiggler
    Schematic of total disturbance momentum of IVU&Wiggler before and after orbit compensation (a), the relationship between the four feedforward power supplies and variation of magnetic gap (b)
    Fig. 4. Schematic of total disturbance momentum of IVU&Wiggler before and after orbit compensation (a), the relationship between the four feedforward power supplies and variation of magnetic gap (b)
    Vacuum cleaning of the front-end area of a new beamline project
    Fig. 5. Vacuum cleaning of the front-end area of a new beamline project

    插入件

    ID name

    周期长度

    Period length

    周期数Number of period峰值磁场Peak magneticfield磁间隙Gap / mm

    总长度

    Total length/ mm

    一次积分场误差First-order magnetic

    field integral error

    二次积分场误差Second-order magnetic field integral error
    扭摆器Wiggler100 mm161.58 T15~1001 750≤50 Gs∙cm (│x│≤1.6 cm)

    ≤25 000 Gs∙cm2

    (│x│≤1.6 cm)

    波荡器IVU20 mm800.84 T6~302 060
    Table 1. Wiggler and IVU parameters
    风险项 Risk items预案 Plan

    真空波荡器安装位置与相邻束线前端已有设备干涉

    The installation position of the IVU interferes with the existing equipment at the front end of the adjacent beam line

    设计过程中调整离子泵角度

    Adjusting the ion pump angle during the design process

    储存环四极铁与束线前端真空室干涉

    Interference between the storage ring quadrupole and the vacuum chamber at the front end of the beamline

    对四极铁的立板进行切割

    Cutting the vertical plate of quadrupole

    辐射防护门与新安装设备干涉

    Radiation protection doors interfere with newly installed equipment

    对辐射防护门进行切割改造

    Cutting and modification of radiation protection doors

    Table 2. Risk items and contingency plans during the installation phase of subsequent beamline projects

    插入件名称

    ID name

    Bx一次积分场误差

    Bx first-order magnetic field integral error

    By一次积分场误差

    By first-order magnetic field integral error

    二次积分场误差Second-order magnetic field integral error磁间隙Gap / mm校正前最大轨道扰动CODx,y / μm

    校正后最大轨道扰动FFCODx,y

    / μm

    波荡器IVU±30 Gs·cm(│x│≤1.6 cm)

    ±50 Gs·cm

    (│x│≤1.6 cm)

    ±10 000 Gs·cm2

    (│x│≤1.6 cm)

    6~3026/40< 2.0/1.5
    扭摆器Wiggler≤50 Gs∙cm (│x│≤1.6 cm)

    ±40 Gs·cm

    (│x│≤1.6 cm)

    ±12 000 Gs·cm2(│x│≤1.6 cm)15~10036/22< 2.0/2.0
    Table 3. Summary of closed-orbit distortion before and after feedforward, and the integral field errors of IVU and Wiggler
    位置 Locations是否引起丢束 Beam loss or not故障名称 Fault name
    插入件 IDs是 Yes联锁逻辑错误 Interlocking logic error
    插入件 IDs否 No磁间隙无法移动 The gap cannot move
    线站 Beamline是 Yes前端区真空异常 Vacuum abnormality in front-end area
    线站 Beamline是 Yes前端区电源故障 Front-end area power failure
    线站 Beamline是 Yes安全联锁PLC故障 Safety interlock PLC failure
    线站 Beamline否 No安全光闸关闭延迟 Safety shutter closing delay
    Table 4. Analysis table of common faults during beamline station operation
    Guangwei JIAO, Shunqiang TIAN, Shengwang XIANG, Ya ZHU, Xinzhong LIU, Shuai WU. Installation and commissioning of accelerators associated with the new beamline in synchrotron radiation light source[J]. NUCLEAR TECHNIQUES, 2024, 47(3): 030101
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