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: 03/17/2025 17:06 | |||
| Identifier: | F-EIS-GUN-INST.2 | WBS: | 6.03.04 |
| Date Modified: | TBD: | FALSE | |
| Status Date: | Status: | In Process | |
| Description: | The Pre-injector separate diagnostic beamline section shall have 3 branches one with Faraday cup, one port containing a connection to the cathode Laser and a line to a low energy beam dump. | ||
| Comments: | |||
| Record Date: 02/13/2025 19:28 | |||
| Identifier: | F-EIS-GUN-INST.2 | WBS: | 6.03.04 |
| Date Modified: | TBD: | FALSE | |
| Status Date: | Status: | On Hold | |
| 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: | |||
| Record Date: 01/27/2025 16:43 | |||
| Identifier: | F-EIS-GUN-INST.2 | WBS: | 6.03.04 |
| Date Modified: | TBD: | FALSE | |
| Status Date: | Status: | On Hold | |
| 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: | |||
| 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.04 | The system shall be able to bend the electron spin such that the direction after bending is horizontal |
| 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.05 | 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.