Technical Design Report Super Fragment Separator

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DRAFT Table 2.4.48: Number of superconducting magnet per type. The number of dipoles, quadrupoles and other magnets are listed per type. The type is named after the machine the magnet is used for. Dipole unit Quadrupole unit Correctors Steering Magnet Chromaticity Hexapole Resonance Hexapole Septa cos θ SIS 300 Superferric 67 102 12*** 78**** 24 12 1 SIS 100 109 86* 12*** 84**** 48 - - Super-FRS 28 28** 32 12 36 - - total 204 216 56 174 108 12 1 * SIS100 Doublet Quadrupole ** Super-FRS Triplet *** Error compensation multipole corrector - quadrupole, hexapole and octupole nested. **** Horizontal and vertical dipole nested. 2.4.A5.4 Reference Magnets There will be no reference magnets for Super-FRS. 2.4.A6 Safety 2.4.A6.1 Interlock system The general procedure for high intensity beam operation is to adjust the beam at lower intensity and verify with detectors. The magnet setting is saved as a reference. The effective thickness of the target and other material in the beam line is also defined. For high intensity operation some diagnostic detectors must be removed but the conditions of SIS100/300, targets, magnets and the first degrader must stay the same. The interlock system must prevent damage and consequent delay for repairing. 2.4.A6.2 Radiation environment (radiation protection) 2.4.A6.2.1 General radiation protection measures In areas open for access to technical or scientific personnel or to the general public, radiation dose limits given by the Radiation Protection Ordinance, must not be exceeded. Assuming a worst case scenario the additional annual dose for the population, arising from the operation of all facilities at the GSI site, must be less than 1 mSv, in addition the effective dose resulting from the release of radioactivity to the environment has to be smaller than 0.3 mSv/year. According to the limits of the German Radiation Protection Ordinance the dose rate should be less than 0.5 µSv/h on GSI ground and less than ≈ 8·10 -8 Sv/h outside the facility. 208
2.4.A6.2.2 Shielding against direct radiation DRAFT The shielding of the Super-FRS has been calculated in two parts. The first part of the Pre-Separator with very strong radiation was simulated with the heavy ion transport code FLUKA [43,44]. In the production target up to 50% of the primary beam can react. But even these ions emerge from the target and the primary beam and most fragments are dumped inside the first part of the Pre-Separator, mainly in the beam catchers. For the realistic FLUKA simulation different scenarios where considered in which the beam after having passed the production target hits each beam catcher. Hitting mainly one catcher represents the worst case scenario for the nearby shielding. The cross section of the shielding around one of the beam catchers is depicted in Figure 2.4.163. A similar cross section is required in the whole first part of the Pre-Separator where the primary beam may be dumped. The effective dose rates resulting mainly from fast neutrons were calculated according to Ferrari and Pelliccioni [119]. Figure 2.4.163: Cross section of the radiation shielding in the first part of the Pre-Separator. The result of a FLUKA simulation of the whole area shows the dose rate during highest intensity primary beam operation with 10 12 238 U/s hitting one of the beam catchers after having passed the production target. The reduction of fast neutrons by the inner iron and outer concrete shielding reduces the effective dose rates to a level below 0.5 µSv/h. For the rest of the Super-FRS tunnel an analytical model has been developed. It is based on the measurements of double differential neutron yields originated from a 1 GeV/u uranium beam hitting a thick iron target, dose values can be estimated via the following formula: e d ⋅ρ 1 − H ( r, ϑ) = H I ( ) 0( ϑ) ⋅ ⋅ λ ϑ 2 ⋅ r The dose (rate) H ( r, ϑ) is derived from the angular dependent constants ) ( H and ) (ϑ λ , the 0 ϑ 209
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DRAFT Technical Design Report Super
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Preface DRAFT The International Fac
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Contents DRAFT 2.4.1 System Design
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DRAFT Table 2.4.1: Parameters of th
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DRAFT degrader stage which provides
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Pre-Separator DRAFT In order to acc
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DRAFT coupling coefficients is give
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DRAFT Table 2.4.3: First-order matr
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DRAFT Main-Separator to the high-en
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DRAFT Table 2.4.5: Transmission T o
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DRAFT Figure 2.4.15: Resolution nec
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DRAFT Figure 2.4.17: Spectrometer m
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DRAFT Table 2.4.8: Design parameter
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DRAFT Figure 2.4.20: Side view of t
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DRAFT Figure 2.4.23: Coil cross-sec
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DRAFT Figure 2.4.25: Flux density d
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Figure 2.4.29: Assembly of two half
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DRAFT Figure 2.4.31: Cross section
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Figure 2.4.34: Sketch of the therma
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DRAFT To fulfill the required field
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DRAFT Figure 2.4.39: The 3D model o
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DRAFT Pole radius mm 100 210 250 25
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DRAFT Figure 2.4.43: Front, side, a
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∆B/B 0.0 DRAFT Figure 2.4.46: Ave
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DRAFT Figure 2.4.50: 3D model of th
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DRAFT Figure 2.4.54 and Table 2.4.1
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DRAFT 2.4.2.3.1 Radiation resistant
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DRAFT The water-cooled radiator con
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DRAFT Table 2.4.17: Coil parameters
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DRAFT Figure 2.4.63: Field distribu
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DRAFT Figure 2.4.65: Multiplet conf
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DRAFT Table 2.4.21 summarizes the r
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2.4.2.6 Current Leads DRAFT The cur
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DRAFT Table 2.4.23 presents the lis
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2.4.3 Power Converters DRAFT The po
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SCR structure DRAFT Regarding high
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a) Chopper circuit 3x400V b) Half b
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External Control System Data transf
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DRAFT Figure 2.4.77: Arrangement of
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SuperFRS Power Supply Effective App
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DRAFT The locations for the differe
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DRAFT Figure 2.4.80: Beam induced f
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DRAFT Figure 2.4.82: Two hybrids ca
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DRAFT Figure 2.4.84: Left panel: TP
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DRAFT extracted beams. Its use for
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Time of Flight measurement DRAFT At
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DRAFT together. Another option is t
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DRAFT Figure 2.4.88: Pillow seal po
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DRAFT Figure 2.4.90: Setup at the m
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DRAFT An overview of the total vacu
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2.4.7.4 Appendix - Technical Drawin
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DRAFT Figure 2.4.96: Diagnostic cha
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DRAFT Figure 2.4.98: Diagnostic cha
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DRAFT Figure 2.4.100: Diagnostic ch
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2.4.8 Particles Sources n/a 2.4.9 E
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DRAFT movable, but BC3 must be able
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DRAFT Figure 2.4.106: Spot size of
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dE/dV [kJ/cm 3 ] 3 2 1 DRAFT includ
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2.4.11.1.4 Design of the beam catch
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DRAFT Figure 2.4.110: Calculated eq
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DRAFT Figure 2.4.112: Location of b
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DRAFT the carbon. Again mainly 7 Be
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DRAFT maintenance of the carbon or
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DRAFT material) and received the an
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DRAFT commissioned in February 2005
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DRAFT Table 2.4.28: Typical beam pa
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DRAFT Figure 2.4.120: Surface tempe
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DRAFT Figure 2.4.123: Schematic lay
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DRAFT These results show that the i
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DRAFT Like in the case of the rotat
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DRAFT Figure 2.4.126: Left: Schemat
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DRAFT Figure 2.4.128: Schematic lay
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DRAFT Figure 2.4.129: Flow scheme o
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DRAFT Since the weight of the cold
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DRAFT With the cooling capacity spe
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DRAFT Figure 2.4.134: Schematic of
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S1 (a) Figure 2.4.136: (a) Zoom of
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2.4.A Appendix DRAFT The appendix o
Page 157 and 158: DRAFT experiment the EXL community
Page 159 and 160: 2.4.A1.3 Slow control and monitorin
Page 161 and 162: DRAFT Figure 2.4.139: Architecture
Page 163 and 164: DRAFT all FAIR accelerators will be
Page 165 and 166: DRAFT source tier are split in two
Page 167 and 168: DRAFT coupled from the ACS which is
Page 169 and 170: DRAFT 2.4.A3.2 Work packages: descr
Page 171 and 172: 2.4.A3.2.4 Instrumentation Measurin
Page 173 and 174: DRAFT this, planning a network layo
Page 175 and 176: DRAFT 2.4.A3.3 Machine characterist
Page 177 and 178: DRAFT installation of RALF was done
Page 179 and 180: DRAFT The double ring synchrotrons,
Page 181 and 182: DRAFT The first refrigerator, Cryo1
Page 183 and 184: DRAFT shield 28874 + 25 g/s 22 bar
Page 185 and 186: LHe storage Helium storage Helium s
Page 187 and 188: Cryo2 Cryo3 CryoST DB 3 DRAFT Compr
Page 189 and 190: DRAFT The cold connection will be m
Page 191 and 192: DRAFT Measurements planned for each
Page 193 and 194: DRAFT For magnets with less stringe
Page 195 and 196: DRAFT The value, parameters, condit
Page 197 and 198: DRAFT 3. Geometry tests For cryosta
Page 199 and 200: DRAFT The Quench Heaters Tests has
Page 201 and 202: DRAFT Figure 2.4.159: Photograph of
Page 203 and 204: DRAFT The field properties listed i
Page 205 and 206: DRAFT Figure 2.4.161: Schematic vie
Page 207: DRAFT Figure 2.4.162: Scheme of the
Page 211 and 212: DRAFT Figure 2.4.164: Schematic lay
Page 213 and 214: DRAFT Figure 2.4.165: An iron beam
Page 215 and 216: DRAFT In a side view the flux of pr
Page 217 and 218: DRAFT catcher 7 Be, 22 Na and 24 Na
Page 219 and 220: DRAFT at the FRS (2·10 9 /spill as
Page 221 and 222: DRAFT [1] H. Geissel et al., Nucl.
Page 223 and 224: DRAFT [74] A. Fabich and J. Lettry,
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Technical Design Report Super Fragment Separator

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