Thermal Tests of Undulator Quad

[摘要] Running at the nominal temperature, the undulator quadrupole has a several degree temperature increase. This note describes the test used to determine the effect on the undulator integrals from the temperature gradient caused by the heat from the quadrupole conducting down the beam pipe. The undulator quadrupoles running at their nominal current of 4 amps heat up approximately 4 degrees Celsius; this magnet in turn heats up the beampipe which goes into the undulator. The heating ends up introducing a thermal gradient across the undulator which causes small changes in the magnetic field of the heated poles. By measuring the temperature change in the poles we can model the effects on the field and determine what the magnetic errors will be.

[发布日期] 2010-11-18

[学科分类] 核物理和高能物理

[关键词] HEATING;MAGNETIC FIELDS;MAGNETS;QUADRUPOLES;TEMPERATURE GRADIENTS;WIGGLER MAGNETS