Technical Data

UMER Magnet Data

UMER Magnet Data

UMER 76 deg. Matching Settings 2006-10

The table below lists the updated magnet currents for best matching for the most commonly-used beams, for a target sigma_0 of 76 degrees. The calculations use the new hard-edge model, assume new quads throughout the ring, and include bends. See Notes below for some additional information.

UMER 73 deg. Matching Settings 2006-08

The table below lists the updated magnet currents for best matching for the most commonly-used beams, for a target sigma_0 of 73 degrees. The calculations use the new hard-edge model, assume new quads throughout the ring, and include bends. See Notes below for some additional information.

MAD description of UMER - Ring

Description of the UMER ring lattice using the Methodical Accelerator Design (MAD) language. Reflects the change of all the ring quads to the new type (3rd generation) week of 8/16/2006.

MAD description of UMER - Injector

Description of the UMER Injector lattice using the Methodical Accelerator Design (MAD) language. Reflects the repositioning of the SOLENOID in June 2006.

BPM Calibration Data

Beam position in the horizontal plane is determined by dividing the difference of the two horizontal (right and left) signals by their sum and applying the offset and resolution factors determined in calibration. Since X and Y are decoupled, repeating the process with the vertical (top and bottom) signals creates an XY pair at which the beam centroid lies. The equations are: X = (Right-Left)/(C(Right+Left))-B/C and Y = (Top-Bottom)/(C(Top+Bottom))-B/C Where Right, Left, Top and Bottom are the voltages measured from the corresponding signal plate, C (slope) is the calibration number and B (X-intercept) is the offset number.

Earth Magnetic Field

Earth Magnetic Field as measured by Bryan Quinn around UMER 2004-10-28

Chart of Earth B-Field

Chart of Earth B-Field from Bryan Quinn's measurements 2004-10-28

E-RING-Apertures

Technical drawings of apertures in the UMER gun (from D. Kehne).

Archived Technical Data

Technical data specifying current configuration will be found in parent folder. Data which is not up to date will be found here. This archived data is useful, for instance, for simulating past experiments.

UMER Design from the old website

Click with Caution. This link contains additional information about the UMER design, but some of it (like the magnet information) may be out of date. The old Website has not been updated since the early 2000s.

UMER Gun Latest AutoCAD Drawings

According to Paul Haldemann these AutoCAD drawings represent the latest drawings of the UMER gun.