Requirement Details
Electron Ion Collider
F-IR-INST.1
Requirement details, history, relationships and interfaces associated with requirement F-IR-INST.1
CURRENT RECORD- ARCHIVE RECORDS
- RELATIONSHIPS
- INTERFACES
| Record Date: 01/27/2025 16:43 | |||
| Identifier: | F-IR-INST.1 | WBS: | 6.06.02 |
| Date Modified: | TBD: | FALSE | |
| Status Date: | Status: | In Process | |
| Description: | The IR shall have the instrumentation needed to measure the beam position of both electron and hadron beams. | ||
| Comments: | |||
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| P-IR-INST-ESR_BPM.1 | The total number of ESR BPM pickups in the IR shall be 24 |
| P-IR-INST-ESR_BPM.2 | For the 2nC pilot bunch, BPM pickups shall be designed to provide the required measurement resolution over the range of H=+/-50, V=+/-10 um |
| P-IR-INST-ESR_BPM.3 | For the design bunch, BPM pickups shall be designed to provide the required measurement resolution over the range of H=+/-20, V=+/-5 um |
| P-IR-INST-ESR_BPM.4 | The BPM pickup shall be designed so to ensure the maximim temperatures of the components (due to heating by the beam) are acceptable for reliability and operations |
| P-IR-INST-ESR_BPM.5 | The BPM pickups shall be designed to be baked to 200 C for large number of thermal cycles (list locations where applicable) |
| P-IR-INST-ESR_BPM.6 | The BPM pickup installation misalignment tolerance shall be for warm BPM=50 & cold BPM=500 um |
| P-IR-INST-ESR_BPM.7 | The BPM pickup misalignement variance tolerance (upper limit) due to thermal cycling of the ESR BPMs in the IR shall be 20 um |
| P-IR-INST-ESR_BPM.10 | The ESR shall have slow global orbit correction BPM pickups at the specified locations within +162m to -162m of IP6 ESR_IR_BPM_corrector-10-20-2023.docx |
| P-IR-INST-ESR_BPM.11 | The BPM electronics shall have a turn-by-turn capability Y |
| P-IR-INST-ESR_BPM.12 | For the 2 nC pilot bunches, single turn measurement resolution shall be Hmax=Vmax<100 Hdrift=Vdrift<50 um |
| P-IR-INST-ESR_BPM.13 | For the 2 nC pilot bunches, 1,000 turns average measurement resolution shall be Hmax=Vmax<30 Hdrift=Vdrift<30 um |
| P-IR-INST-ESR_BPM.14 | For stored beam, turn-by-turn low charge, 2 nC bunches, measurement resolution shall be Hmax=Vmax<30 Hdrift=Vdrift<30 um |
| P-IR-INST-ESR_BPM.15 | For stored beam, turn-by-turn high charge, 7-28 nC bunch range, measurement resolution shall be Hmax=Vmax<10 Hdrift=Vdrift<10 um |
| P-IR-INST-ESR_BPM.16 | For stored beam, 1,000 turns average, high charge, 7-28 nC bunch range, measurement resolution shall be Hmax=Vmax<5 Hdrift=Vdrift<5 um |
| P-IR-INST-ESR_BPM.17 | For stored beam, 1 second average, high charge, 7-28 nC bunch range, measurement resolution shall be Hmax=Vmax<1 Hdrift=Vdrift<1 um |
| P-IR-INST-HSR_BPM.1 | Existing RHIC stripline BPMs that are reused in the IR shall be shielded (sleeved) to avoid overheating the BPMs and their cables in the RHIC cryostats |
| P-IR-INST-HSR_BPM.2 | New hadron cryobutton BPMs shall be placed in available locations as close as possible to the existing RHIC stripline BPMs inside RHIC cryostats which are being reused |
| P-IR-INST-HSR_BPM.3 | New hadron BPMs shall be placed in new, additional locations as required HSR_IR_BPM_cor_location-10-20-2023.xlsx |
| P-IR-INST-HSR_BPM.4 | New hadron cryobutton BPMs shall be able to operate a with minimal load on the cryogenic system at temperatures of 2 K |
| P-IR-INST-HSR_BPM.5 | The new and existing BPMs shall compatibly interface with the new coated sleeves that are being added to the HSR cold vacuum pipe. |
| P-IR-INST-HSR_BPM.6 | Each new cryobutton BPM shall have the same measurement plane(s) as the closest existing RHIC stripline BPM or be upgraded to dual plane |
| P-IR-INST-HSR_BPM.7 | The BPM mechanical centers shall be aligned with nearby quadrupole magnetic center within at least 0.15 mm |
| P-IR-INST-HSR_BPM.8 | The BPMs at the arc focusing quads shall be capable of providing a reliable measurement of the horizontal orbit position of +/-21 mm |
| P-IR-INST-HSR_BPM.9 | The BPMs at the arc defocusing quads shall be capable of providing a reliable measurement of the horizontal orbit position of +/-10 mm |
| P-IR-INST-HSR_BPM.10 | The BPMs at the arc focusing quads for measurements of the orbit position at a bunch charge of 5nC. [5.9] shall be capable to provide reliable measurements in a range of +/ 21 mm |
| P-IR-INST-HSR_BPM.11 | The BPMs at the arc defocusing quads shall be capable to provide reliable measurement of the orbit position in the range +/ 10 mm at a bunch charge of 5nC. [5.9] 10 mm |
| P-IR-INST-HSR_BPM.12 | A number of BPMs shall sighted on either side of IP6 where there is a different (nontraditional) beam pipe aperture. These BPM will not be the standard HSR cryoBPM. The number of non standard BPMs in this region shall be TBD |
| P-IR-INST-HSR_BPM.13 | The nonstandard HSR BPM's in this region shall be compatible with the non standard beam pipe aperture. |
| P-IR-INST-HSR_BPM.14 | The locations of the non standard HSR BPM's in the nonstandard beam pipe aperture shall be. TBD |
| P-IR-INST-HSR_BPM.15 | The non standard HSR BPM's shall have a measurement resolution of TBD units |
| P-IR-INST-HSR_BPM.16 | The expected radial offset at each of the non standard HSR BPMs in the IR, for each of the various HSR running modes shall be 0 mm |
| P-IR-INST-HSR_BPM.17 | There shall be warm HSR button BPM pickups at the following locations TBD |
| P-IR-INST-HSR_BPM.18 | The warm HSR button BPM pickups shall have a measurement resolution of TBD |
| P-IR-INST-HSR_BPM.19 | The warm HSR button BPM pickups at the following locations Dimensions and performance requirements are TBD |
| P-IR-INST-HSR_BPM.20 | A hadron BPM shall be installed between B0pF and B0ApF with the dedicated purpose of measuring the hadron crabbing angle of 12.5 mrad |
| P-IR-INST-HSR_BPM.21 | The BPM electronics for the pickups located in the HSR arcs (defined in this case as from Q5 to Q5) need to be able to provide measurements during the store with an considerably shifted beam radial orbit. The BPMs here shall be able to measure a maximum radial orbit shift range of +\- 21 mm |
| P-IR-INST-HSR_BPM.22 | There shall be no requirement on BPMs to perform individual measurements for each bunch, when more than one bunch is present. One position measurement per turn which includes all bunches combined will be the narrowest (turn-by-turn) mode of sampling. |
| P-IR-INST-HSR_BPM.23 | The BPM RMS resolution for measuring one turn orbit for a 5 nC bunch at injection parameters shall not be larger than 2 mm |
| P-IR-INST-HSR_BPM.24 | TheBPM RMS resolution for a 44 nC bunch at injection parameters for measuring one turn orbit shall not be larger than 0.2 mm |
| P-IR-INST-HSR_BPM.25 | The BPM system shall be capable of delivering an array of consecutive single turn position measurements at a rate of 1 array per second with 1024 turns |
| P-IR-INST-HSR_BPM.26 | The BPM system shall be capable of delivering average orbit measurements at a continuous rate of 1 Hz |
| P-IR-INST-HSR_BPM.27 | The RMS resolution, averaged over a 1 second period, for a 5 nC bunch at injection parameters for measuring the average orbit shall not be larger than 0.2 mm |
| P-IR-INST-HSR_BPM.28 | The RMS resolution , averaged over a 1 second period, for a 44 nC bunch at acceleration ramp parameters for measuring the average orbit shall not be larger than 20 um |
| P-IR-INST-HSR_BPM.29 | The resolution, averaged over a 1 second period, at highest average current parameters for measuring the average orbit shall not be larger than 20 um |
| P-IR-INST-HSR_BPM.31 | The BPM system shall be able to provide average orbit measurements to an orbit feedback system having a bandwidth of at least 1 Hz |
| P-IR-INST-HSR_BPM.30 | The BPM system shall require a subset of BPMs that operate the fast orbit feedback having a bandwidth of at least 1 kHz |
| P-IR-INST-HSR_BPM.32 | The electronics associated with the hadron BPM pickup installed between B0pF and B0ApF, used for measuring the hadron crabbing angle, shall have the necessary bandwidth and characteristics to measure a crabbing angle of 12.5 mrad |
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