1 / 5

Positional tolerance of the magnet centre to beam centre

Positional tolerance of the magnet centre to beam centre. We want to position modules in the beam with adequate accuracy and repeatability. What we aim to do: Survey the module magnet centres correct to their idealised location in the cooling channel (distance x from the MICE centre).

milek
Télécharger la présentation

Positional tolerance of the magnet centre to beam centre

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Positional tolerance of the magnet centre to beam centre • We want to position modules in the beam with adequate accuracy and repeatability. • What we aim to do: Survey the module magnet centres correct to their idealised location in the cooling channel (distance x from the MICE centre). Align the modules to the beam along the length of their axis. Achieve the above repeatedly when moving modules from the in beam to out of beam position. • We consider it necessary to have two positional tolerances to achieve the above (slides 4 and 5): • To arrive at a technical solution we first need to understand the values for the positional tolerances.

  2. Positional tolerances • What shape are the positional tolerances, sphere or cylinder i.e. does the requirement for the upstream, downstream position differ from the orbital position? (See slide 4) • What are the dimensions of the positional tolerance? • Is the tolerance the same for every module? • Please do not be tempted to over specify the tolerance, it makes the Engineering overly complicated and costly.

  3. Hall CSYS y z x

  4. Beam centre travels down the X axis CYSY represents idealised magnet centre Option one sphere Magnet centre exists anywhere inside the sphere Y 1. Positioning the magnet centre to the idealised location in the cooling channel X Z Y 2mm ? Y Y Option two cylinder Diameter 1mm ? Diameter 1mm ? X Z Z X X Z Magnet centre exists anywhere inside the cylinder Upstream - downstream Orbital

  5. 2. Module axis aligned to beam axis 2mm ? Beam centre Cylindrical positional tolerance down the length of the module

More Related