Requirement Details
Electron Ion Collider
F-EIS-PREINJ-GUN.21
Requirement details, history, relationships and interfaces associated with requirement F-EIS-PREINJ-GUN.21
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Record Date: 03/20/2025 17:29 | |||
Identifier: | F-EIS-PREINJ-GUN.21 | WBS: | 6.03.04 |
Date Modified: | TBD: | FALSE | |
Status Date: | Status: | In Process | |
Description: | The diagnostic beamline solenoids shall be capable of maintaining the beam size in the diagnostic line up to either the Faraday cup or the Mott polarimeter. | ||
Comments: |
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Parents | |
G-EIS.2 | The EIS shall provide an electron beam having sufficient energy to meet the ESR beam requirements as set forth in the MPT. [Document#:EIC-SEG-RSI-005] |
G-EIS.3 | The EIS shall provide an electron beam with the RMS bunch momentum spread at extraction which meet the ESR beam requirements as set forth in the MPT. [Document#:EIC-SEG-RSI-005] |
G-EIS.4 | The EIS pre-injector shall provide an electron beam to the ESR having a horizontal beam emittance which is compatible with operation of the ESR. |
G-EIS.5 | The EIS pre-injector shall provide an electron beam to the ESR having a vertical beam emittance which is compatible with operation of the ESR. |
G-EIS.6 | The EIS shall inject into the ESR at a rate of 1[Hz]. |
G-EIS.7 | The EIS shall inject one bunch into the ESR whilst being able to provide 1 bunch per injection cycle. |
G-EIS.8 | The EIS shall provide an electron beam to the ESR having RMS Bunch lengths at extraction to meet beam requirements as set forth in the MPT. [Document#:EIC-SEG-RSI-005] |
G-EIS.9 | The EIS shall provide an electron beam to the ESR having the bunch charge at extraction to meet the beam requirements as set forth in the MPT. [Document#:EIC-SEG-RSI-005] |
G-EIS.10 | The EIS bunch replacement process shall deliver polarized replacement bunches capable of creating all the ESR polarization patterns needed to meet the physics goals. |
Children | |
P-EIS-GUN-INST-F_CUP.01 | The Faraday cup shall be able to measure the charge of the electron bunches from the gun over a charge range of 0.1 - 14 nC |
P-EIS-GUN-INST-F_CUP.02 | The Faraday cup electronics shall require < 3 kW supplied from one 110 Vac, 20 Amp single chase circuit |
P-EIS-GUN-INST-F_CUP.03 | The Faraday cup power dissipation shall be less that 1 W |
P-EIS-GUN-INST-MOT.01 | The E-gun charge measurement shall use a Mott polarimeter measurement technique. |
P-EIS-GUN-INST-MOT.02 | The Mott polarimeter shall provide polarization measurements of 280-350 keV electron bunches with an accuracy >=2 % |
P-EIS-GUN-INST-MOT.03 | Right and left backscatter acquisition chains shall be incorporated in the design (e-detector, pre-amp, amp, and MCA) |
P-EIS-GUN-INST-MOT.04 | The Mott polarimeter shall be able to measure the polarization of the electron bunches from the gun. |
P-EIS-GUN-INST-MOT.05 | The Mott polarimeter shall read beam polarization over a repolarization range of 25 to 90 % |
P-EIS-GUN-INST-MOT.06 | Over the measurement range the Mott polarimeter shall be accurate to within a resolution of 2 % |
P-EIS-GUN-INST-MOT.07 | The Mott polarimeter system and electronics shall utilize ~11 kW, from one 208 Vac 3 phase @ 30 amps/phase circuit (It depends on Mott polarimeter design) |
P-EIS-GUN-INST-MOT.08 | The Mott polarimeter shall function @ 18[C] (nom.) within a temperature stability +/- 2[C]supplied by the gun clean room |
P-EIS-GUN-INST-MOT.09 | The 280-350 keV Mott polarimeter shall have a bunch charge measurement range of 0.1 to 14 nC |
P-EIS-GUN-INST-MOT.10 | Th polarimeter shall measure the bunch emittance by slit and beam viewer placed before the 143 deg bending dipole? |
P-EIS-GUN-INST-SR.01 | In the gun diagnostic line an electrostatic bend spin rotator (based on Illinois Univ. design, 1993) shall be used |
P-EIS-GUN-INST-SR.02 | The system shall include two High voltage power supplies and two HV cables |
P-EIS-GUN-INST-SR.03 | When bending at 300 keV the system shall have a bend angle of 143 deg |
P-EIS-GUN-INST-SR.04 | The system shall be able to bend the electron spin such that the direction after bending is horizontal |
P-EIS-GUN-INST-SR.05 | The system shall be able to bend the beam over the range of electron beam energies from 280 to 350 KeV |
P-EIS-GUN-LASER.02 | The Laser system requires a minimum voltage for electrical service 208 Vac |
P-EIS-GUN-LASER.03 | The Laser power consumption shall be < 40 kW |
P-EIS-GUN-LASER.04 | The Laser shall be cooled by chillers which also use the laser system power |
P-EIS-GUN-LASER.05 | The Laser cooling power shall not exceed 20 kW |
P-EIS-GUN-LASER.06 | The Laser shall be able to function in a clean room having an ambient temperature of 18 +/- 2 CO |
P-EIS-GUN-LASER.07 | The Laser shall have a repetition rate 0.623 MHz |
P-EIS-GUN-LASER.08 | The Laser pulse shall have a temporal profile 1.5 to 2 nS |
P-EIS-GUN-LASER.09 | The Laser shall operate at a wavelength of 780 +/-5 tunability range nm |
P-EIS-GUN-LASER.10 | The Laser shall be capable of generating a bunches having at least a spacing between bunches of <1.6 ns |
P-EIS-GUN-LASER.11 | The Laser Shall have the ability to flip and filter the laser pulses |
P-EIS-GUN-LASER.13 | The Laser pulse jitter rms shall not exceed <5 ps |
P-EIS-GUN-LASER.12 | The laser pulse shall have a transverse truncated gaussian profile |
P-EIS-GUN-LASER.14 | The laser (power differential received at the cathode?) in the laser OFF and ON conditions shall be >60 dB |
This function not yet implemented.