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P-HSR-MAG-Q8.06

Requirement details, history, relationships and interfaces associated with requirement P-HSR-MAG-Q8.06

CURRENT RECORD

Record Date: 02/18/2025 18:26
Identifier:	P-HSR-MAG-Q8.06	WBS:	6.05.02.01
Date Modified:		TBD:	FALSE
Status Date:		Status:	Not Applicable
Description:	The magnet shall be designed to be cooled and sustained at its operational temperature utilizing the proposed EIC cryogenic system which meets the following constraints:
Comments:

ARCHIVE RECORDS

Record Date: 01/27/2025 16:43
Identifier:	P-HSR-MAG-Q8.06	WBS:	6.05.02.01
Date Modified:		TBD:	FALSE
Status Date:		Status:	In Process
Description:	The magnet shall be designed to be cooled and sustained at its operational temperature utilizing the proposed EIC cryogenic system which meets the following constraints:
Comments:

RELATIONSHIPS

Parents
F-EIS- RCS-LATTICE-ARC.1	The EIC RCS lattice arc magnet structure shall contain an array of 160 regular FODO cells to bend the beam and to control the beam optics broken into two arcs. The arc FODO cells shall consist of a horizontally focusing\defocusing quadrupole magnet followed by a correction dipole; then, followed a dipole bending magnet, and then followed by a sextupole correction magnet. With a drift space between these elements of > 0.1m long
F-EIS- RCS-LATTICE-STRAIGHT.1	The RCS will have two straight sections connecting the two arcs. Each straight shall be comprised of 2 FODO cells on each end for matching into the arcs and with one of the drifts long enough to accommodate extraction or injection and the necessary septa magnets. The straights shall also have 4 FODO cells in the center with enough space to accommodate 8 SRF cryo-modules to generate 130 MV of accelerating voltage.
F-EIS- RCS-MAG.5	The good field region of the dipoles shall extend over a horizontal range of at least 15 mm in the radial direction, for all operational beam energies from 0.75 to 18Gev.
F-EIS- RCS-MAG.12	The aperture of all magnets shall be large enough to accommodate the vacuum chamber.
F-EIS-RCS-MAG.1	The magnets shall meet the requirements defined by the physics lattice.
F-EIS-RCS-MAG.5	The EIC RCS lattice arc FODO cells shall consist of a horizontally focusing\defocusing quadrupole magnet followed by a correction dipole, then a followed by a sextupole correction magnet and a dipole bending magnet. With a drift space between these elements of > 0.3m long.
F-EIS-RCS-MAG.6	There shall be sections at the ends of the ARCS and the straight sections to match the optics.
F-EIS-RCS-MAG.10	The straight sections IR2,4,10 and 12 shall use FODO cells for optic control.
F-EIS-RCS-MAG.13	There shall be only one family of dipoles in the RCS.
F-EIS-RCS.9	The RCS lattice shall provide a maximum dynamic aperture of 3 sigma w.r.t Gaussian electron beam distribution in transverse dimensions.
F-EIS-RCS.10	The RCS off-momentum aperture shall reach 1.0% dp/p.
F-EIS-RCS.11	Quadrupoles and sextupoles shall be aligned to with 0.2 mm RMS or better with a 2.5 sigma cutoff.
F-EIS-RCS.12	The alignment of the dipole field with respect to the vertical axis shall be less +/- 1 mrad rms with 2 sigma cut-off.
F-EIS.1	The EIS polarized electron source shall create a spin polarized beam of electrons and inject them into the ESR.
F-EIS.2	The injected spin polarized electron beam shall meet all the parameters set forth in the MPT. [Document#:EIC-SEG-RSI-005]
F-EIS.3	The EIS shall consist of five sections: 1. Pre-Injector 2. LTR Transfer Line 3. BAR 4. RCS 5. RTE Transfer Line
F-IR-HSR-LATTICE.2	The hadron beamline lattice elements through the IR shall have a large enough aperture throughout to accommodate a minimum of 10σ spread in x and y of the incoming hadron beam at all energies without obstruction for all energies set forth in [5.8].
F-IR-HSR-LATTICE.14	At the IP of the hadron lattice the dispersion, its derivative and alpha shall all be 0 ,and the beta βx βy shall be chosen to deliver the colliding beam parameters set forth in [5.8]
F-IR.2	The IR shall guide the hadron and electron beams to collide at the IP of IR6.
F-IR.4	The IR electron and hadron beam lines shall have the linear lattice functions matched to the incoming and outgoing arcs of the ESR and HSR respectively.
F-IR.8	The IR shall be designed to ensure the hadron and electron beam collisions at the IP meet all the performance requirements set forth in [5.8].
F-IR.9	The IR shall be designed so that the electron and hadron beams have the same cross-sectional area and maximum overlap to achieve the high luminosities required in [5.8].
F-IR.11	The IR operational uptime shall match the operational uptime requirements of the EIC.
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