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| Old-Popsicle-Stick-CAD-iso3.png|Figure 15: Side view of a bundle support (a.k.a. popsicle stick). | | Old-Popsicle-Stick-CAD-iso3.png|Figure 15: Side view of a bundle support (a.k.a. popsicle stick). |
| </gallery> | | </gallery> |
| + | |
| + | ===<u>Popsicle Stick Limitations</u>=== |
| + | Placing the "Pivot Point" on the focal plane and only allowing +0.5 cm towards the tagger magnet the maximum crossing angle for the current bundle support design is β<sub>max</sub> = 19.51<sup>o</sup>, while the minimum angle is β<sub>min</sub> = 4.05<sup>o</sup>. This does not account for the most forward bundle mounting strap clamp and bolts, but they are lower in Z<sub>FP</sub> than the fibers and should not extend significantly past the 0.5 cm limit even at lower β angles. |
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| [[Image:e_path_in_Bundle.png|center|thumb|800px|Figure 16: Sketch showing the path of electrons that pass through the center of the fiber columns near the focal plane. At the back-end of the 2 cm. SciFi a misalignment of around 0.03 mm (with respect the the fiber's axis) results from using an averaged β angle for the bundle support location.]] | | [[Image:e_path_in_Bundle.png|center|thumb|800px|Figure 16: Sketch showing the path of electrons that pass through the center of the fiber columns near the focal plane. At the back-end of the 2 cm. SciFi a misalignment of around 0.03 mm (with respect the the fiber's axis) results from using an averaged β angle for the bundle support location.]] |
| | | |
− | ==Final== | + | ==TAGM Move for a 6 GeV E<sub>γ</sub> Starting Point== |
− | xxxxxxxxxxxxx
| + | Using the calculations explained in [https://zeus.phys.uconn.edu/wiki/index.php/Calculating_the_move "Calculating the move" wiki page], the following parameters for a 6 GeV maximum tagged photon energy were determined. |
− | | |
− | ===<u>Popsicle Stick Limitations</u>===
| |
− | Placing the "Pivot Point" on the focal plane and only allowing +0.5 cm towards the tagger magnet the maximum crossing angle for the current bundle support design is β<sub>max</sub> = 19.51<sup>o</sup>, while the minimum angle is β<sub>min</sub> = 4.05<sup>o</sup>. This does not account for the most forward bundle mounting strap clamp and bolts, but they are lower in Z<sub>FP</sub> than the fibers and should not extend significantly past the 0.5 cm limit even at lower β angles.
| |
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− | xxxxxxxxxxxxx
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| <center> | | <center> |
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| <table style="border: thin solid black;" cellspacing="0"> | | <table style="border: thin solid black;" cellspacing="0"> |
| <tr> | | <tr> |
− | <td align="left" valign="top">Starting E<sub>γ</sub> = </td> <td align="center" valign="top"> 11.0</td> <td align="left" valign="top"> GeV</td> | + | <td align="left" valign="top">Starting E<sub>γ</sub> = </td> <td align="center" valign="top"> 6.0</td> <td align="left" valign="top"> GeV</td> |
| </tr> | | </tr> |
| <tr> | | <tr> |
− | <td align="left" valign="top">Ending E<sub>γ</sub> = </td> <td align="center" valign="top"> 11.0</td> <td align="left" valign="top"> GeV</td> | + | <td align="left" valign="top">Ending E<sub>γ</sub> = </td> <td align="center" valign="top"> 4.475</td> <td align="left" valign="top"> GeV</td> |
| </tr> | | </tr> |
| | | |
| <tr> | | <tr> |
− | <td align="left" valign="top">1<sup>st</sup> Bundle β<sub>o</sub> Angle = </td> <td align="center" valign="top"> 11.0</td> <td align="left" valign="top"> GeV</td> | + | <td align="left" valign="top">1<sup>st</sup> Bundle β<sub>o</sub> Angle = </td> <td align="center" valign="top"> 9.246</td> <td align="left" valign="top"> degrees</td> |
| + | </tr> |
| + | <tr> |
| + | <td align="left" valign="top">1<sup>st</sup> Bundle Resolution = </td> <td align="center" valign="top"> 15.1</td> <td align="left" valign="top"> MeV</td> |
| + | </tr> |
| + | <tr> |
| + | <td align="left" valign="top">Last Bundle β<sub>f</sub> Angle = </td> <td align="center" valign="top"> 8.51</td> <td align="left" valign="top"> degrees</td> |
| + | </tr> |
| + | <tr> |
| + | <td align="left" valign="top">Last Bundle Resolution = </td> <td align="center" valign="top"> 17.1</td> <td align="left" valign="top"> MeV</td> |
| </tr> | | </tr> |
| <tr> | | <tr> |
− | <td align="left" valign="top">Last Bundle β<sub>f</sub> Angle = </td> <td align="center" valign="top"> 11.0</td> <td align="left" valign="top"> GeV</td> | + | <td align="left" valign="top">No. of Bundles Used = </td> <td align="center" valign="top"> 16</td> <td align="left" valign="top">Bundles </td> |
| </tr> | | </tr> |
| <tr> | | <tr> |
− | <td align="left" valign="top">No. of Bundles Used = </td> <td align="center" valign="top"> 17</td> <td align="left" valign="top">Bundles </td> | + | <td align="left" valign="top">Tow Angle = </td> <td align="center" valign="top"> 0.049</td> <td align="left" valign="top"> degrees</td> |
| </tr> | | </tr> |
| <tr> | | <tr> |
− | <td align="left" valign="top">Tow Angle = </td> <td align="center" valign="top"> 11.0</td> <td align="left" valign="top"> <sup>o</sup></td> | + | <td align="left" valign="top">Tow Shim = </td> <td align="center" valign="top"> 0.0056</td> <td align="left" valign="top"> inches</td> |
| </tr> | | </tr> |
| <tr> | | <tr> |
− | <td align="left" valign="top">Rail Pitch = </td> <td align="center" valign="top"> 11.0</td> <td align="left" valign="top"> <sup>o</sup></td> | + | <td align="left" valign="top">Forward Rail Pitch = </td> <td align="center" valign="top"> 0.035</td> <td align="left" valign="top"> degrees</td> |
| + | </tr> |
| + | <tr> |
| + | <td align="left" valign="top">Rear Rail Pitch = </td> <td align="center" valign="top"> 0.118</td> <td align="left" valign="top"> degrees</td> |
| </tr> | | </tr> |
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| </table> | | </table> |
| </center> | | </center> |
− |
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− | Table with coordinates here ...
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− |
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− | *[http://zeus.phys.uconn.edu/~pratt/software/ablator.C '''AAAA.C: Text here.''']
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