Difference between revisions of "February 23, 2016 - Elegant Layout"
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# input file uses beam line U2HD which extends from valve upstream cryounit VBV1M01 to final beam dump IDL5M01 | # input file uses beam line U2HD which extends from valve upstream cryounit VBV1M01 to final beam dump IDL5M01 | ||
# U2HD element names are presently a mix of generic names and nomenclature, until optics and ME design is refined | # U2HD element names are presently a mix of generic names and nomenclature, until optics and ME design is refined | ||
| − | # MeV transport line | + | # MeV transport line in three sequential sections based on guidance from Dave Douglas: |
| − | # Optimization occurs in three steps: | + | * 4-quad telescope to match from cryounit into chicane |
| − | * | + | * 3-quad vertical chicane |
| − | * | + | * 4-quad telescope to set spot at HDIce |
| − | * | + | # Optimization of quadrupoles occurs in three steps: |
| + | * First, the chicane is optimized to remove dispersion at center of chicane | ||
| + | * Second, the telescope from cryounit to chicane is optimized to control spot size at center of chicane | ||
| + | * Third, the telescope after chicane is optimized to control spot size at entrance of HDIce | ||
# input conditions are based on CEBAF emittance measurements at 7 MeV/c just after cryounit | # input conditions are based on CEBAF emittance measurements at 7 MeV/c just after cryounit | ||
# note that cryounit is presently treated as a drift, until dimensions for 2-cell and 7-cell are known | # note that cryounit is presently treated as a drift, until dimensions for 2-cell and 7-cell are known | ||
# output file mev.out shows (continued) floor layout where X=0, Y=1.0668m, Z=0m is placed at "START POINT" on drawing JL0024891 | # output file mev.out shows (continued) floor layout where X=0, Y=1.0668m, Z=0m is placed at "START POINT" on drawing JL0024891 | ||
Revision as of 18:04, 23 February 2016
This version of UITF is archived at /a/itfdata/uitf/elegant/160223/
kev.ele
# uses beam line G2U which extends from marker PARM 0.20 m downstream of photocathode to valve upstream of cryounit VBV1M01 # G2U element names are entirely nomenclature per ME song sheet to be released # present initial conditions are based on CEBAF 100-130 keV gun with typical laser spot size # more realistic initial conditions will be generated for 200 keV and 350 keV inverted guns with ball electrode # Wien filter set for 0 deg spin rotation (i.e. a drift) is used # 1497 MHz chopping cavities are set to produce 1mm deflection at center of chopper # 750 MHz bunching cavity is set for modest bunching, to be studied with longitudinal code # output file kev.out shows floor layout where X=0, Y=1.0668m, Z=0m is placed at "START POINT" on drawing JL0024891
mev.ele
# input file uses beam line U2HD which extends from valve upstream cryounit VBV1M01 to final beam dump IDL5M01 # U2HD element names are presently a mix of generic names and nomenclature, until optics and ME design is refined # MeV transport line in three sequential sections based on guidance from Dave Douglas: * 4-quad telescope to match from cryounit into chicane * 3-quad vertical chicane * 4-quad telescope to set spot at HDIce # Optimization of quadrupoles occurs in three steps: * First, the chicane is optimized to remove dispersion at center of chicane * Second, the telescope from cryounit to chicane is optimized to control spot size at center of chicane * Third, the telescope after chicane is optimized to control spot size at entrance of HDIce # input conditions are based on CEBAF emittance measurements at 7 MeV/c just after cryounit # note that cryounit is presently treated as a drift, until dimensions for 2-cell and 7-cell are known # output file mev.out shows (continued) floor layout where X=0, Y=1.0668m, Z=0m is placed at "START POINT" on drawing JL0024891