Requirement Details
Electron Ion Collider
F-EIS-GUN-INST.2
Requirement details, history, relationships and interfaces associated with requirement F-EIS-GUN-INST.2
CURRENT RECORD- ARCHIVE RECORDS
- RELATIONSHIPS
- INTERFACES
| Record Date: 10/10/2024 14:48 | |||
| Identifier: | F-EIS-GUN-INST.2 | WBS: | 6.03 |
| Date Modified: | TBD: | FALSE | |
| Status Date: | Status: | In Process | |
| Description: | The Pre-Injector separate diagnostic beam line section shall have 3 branches one with a Mott polarimeter & Faraday cup, one containing a connection to the cathode Laser and a line to a low energy beam dump. | ||
| 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 [5.9]. |
| G-EIS.3 | The EIS shall provide an electron beam with the RMS bunch momentum spreads at extraction which meet the ESR beam requirements as set forth in [5.9]. |
| 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 2 bunches per injection cycle. |
| 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 [5.9]. |
| 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 [5.9]. |
| G-EIS.10 | The ESR bunch replacement pattern will be defined by 1.the required polarization pattern to be provided to the experiments, 2.decay rates and 3. The RF cogging limitations of the beam transfer between RCS and ESR. |
| Children | |
| P-EIS-GUN-INST-F_CUP.1 | 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.2 | The Faraday cup electronics shall require < 3 kW supplied from one 110 Vac, 20 Amp single chase circuit |
| P-EIS-GUN-INST-F_CUP.3 | The Faraday cup power dissipation shall be less that 1 W |
| P-EIS-GUN-INST-MOT.1 | The E-gun charge measurement shall use a Mott polarimeter measurement technique. |
| P-EIS-GUN-INST-MOT.2 | The Mott polarimeter shall provide polarization measurements of 280-350 keV electron bunches with an accuracy >=2 % |
| P-EIS-GUN-INST-MOT.3 | Right and left backscatter acquisition chains shall be incorporated in the design (e-detector, pre-amp, amp, and MCA) |
| P-EIS-GUN-INST-MOT.4 | The Mott polarimeter shall be able to measure the polarization of the electron bunches from the gun. |
| P-EIS-GUN-INST-MOT.5 | The Mott polarimeter shall read beam polarization over a repolarization range of 25 to 90 % |
| P-EIS-GUN-INST-MOT.6 | Over the measurement range the Mott polarimeter shall be accurate to within a resolution of 2 % |
| P-EIS-GUN-INST-MOT.7 | 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.8 | 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.9 | 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.1 | In the gun diagnostic line an electrostatic bend spin rotator (based on Illinois Univ. design, 1993) shall be used |
| P-EIS-GUN-INST-SR.2 | The system shall include two High voltage power supplies and two HV cables |
| P-EIS-GUN-INST-SR.3 | When bending at 300 keV the system shall have a bend angle of 143 deg |
| P-EIS-GUN-INST-SR.4 | The system shall be able to bend the electron spin such that the direction after bending is horizontal |
| P-EIS-GUN-INST-SR.5 | The system shall be able to bend the beam over the range of electron beam energies from 280 to 350 KeV |
This function not yet implemented.