Difference between revisions of "Absolute Beam Energy"
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- Increase beam kinetic energy to '''8.5 MeV'''. | - Increase beam kinetic energy to '''8.5 MeV'''. | ||
- Reduce the uncertainty on the absolute beam energy to '''<0.1%''' and achieve a relative beam energy of '''<0.02%'''. | - Reduce the uncertainty on the absolute beam energy to '''<0.1%''' and achieve a relative beam energy of '''<0.02%'''. | ||
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| + | = '''New Dipole Magnet''' = | ||
| + | # Magnet Design: [[media:new_5MeV_dipole.pdf]] [[media:new_5MeV_dipole.doc]] | ||
| + | # Magnet Drawings (change txt to tar): [[media:05-06-14_ISSUED_DL_MAG_DRAWINGS.txt]] | ||
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| + | = '''New Hall Probe''' = | ||
| + | # GMW DTM-151-PS Digital Teslameter, 20 Bit Resolution, RS-232 Interface, Panel Mtg [[media:G3_MAN_DTM-151-S.pdf]] | ||
| + | # GMW MPT-231-8s Miniature Hall Probe with thermal sensor, High Sensitivity 0.03T, 0.06T, 0.12T, & 0.3T, 8m shielded cable. 0.01% accuracy, resolution to 2 ppm, and a temperature stability of 10 ppm/°C. | ||
Revision as of 15:35, 13 May 2014
Summary of Beam Properties in JLab Injector
| Beam Kinetic Energy, T (MeV) | 3.0 – 7.75 |
| Beam Current (µA) | 0.01 – 100 |
| Absolute Beam Energy | 0.36% |
| Relative Beam Energy | 0.1% |
| Energy Resolution (Spread), σT /T | 0.06% |
| Beam Size, σx,y (mm) | 1 – 2 |
Goals: - Increase beam kinetic energy to 8.5 MeV. - Reduce the uncertainty on the absolute beam energy to <0.1% and achieve a relative beam energy of <0.02%.
New Dipole Magnet
- Magnet Design: media:new_5MeV_dipole.pdf media:new_5MeV_dipole.doc
- Magnet Drawings (change txt to tar): media:05-06-14_ISSUED_DL_MAG_DRAWINGS.txt
New Hall Probe
- GMW DTM-151-PS Digital Teslameter, 20 Bit Resolution, RS-232 Interface, Panel Mtg media:G3_MAN_DTM-151-S.pdf
- GMW MPT-231-8s Miniature Hall Probe with thermal sensor, High Sensitivity 0.03T, 0.06T, 0.12T, & 0.3T, 8m shielded cable. 0.01% accuracy, resolution to 2 ppm, and a temperature stability of 10 ppm/°C.
PEPPo Results
Momentum Measurement:
- Joe's summary of beam momentum: Media:130724_Bubble_Grames.pdf
- Joe's presentation at PEPPo Collaboration Meeting: Media:Collab_Momentum_Grames.pdf
- Joe's followup: Media:130718_FollowUp_Momentum_Grames.pdf
- Joe's followup: BPM quad centering Media:130726_MomentumFollowUp2_Grames.pdf
Cryounit Gradient:
- Upper limit of the electron beam energy at the CEBAF 2D injector spectrometer and its functionality
Jonathan Dumas, Joe Grames, and Eric Voutier Media:JLAB-TN-08-086.pdf