Technical Design Report Super Fragment Separator

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DRAFT 2.4.11.1 the beam catcher will be the most activated part as it catches almost the full beam power of 40 kW. At 1 GeV/u the factor for comparing protons with uranium ions is still 0.2, which means an equivalent of 10 kW/m proton beam at the beam catcher, which forbids maintenance by people but robots can be used. Figure 2.4.174: Radiation shielding bottle at PSI [65] to move activated parts to a hot cell. The whole plug is pulled into the bottle which is then transported with a crane. The activation of the preceding and following dipole magnet is also shown in Figure 2.4.172. The activation there is much lower than that of the iron in the beam catcher. Still human access is not possible. But all cable connections can be removed from the working platform and the magnet separated into at least two pieces can be hooked to the crane and moved. This case presents the worst case accident for the machine; however, all devices are designed not to fail during their lifetime. Still this case can be managed when declaring the entire target hall a closed area and installing additional shielding where to store the magnet pieces. The values are much reduced in the Main-<strong>Separator</strong>. A factor 1000 times lower beam intensity and more distributed beam catcher lead to about 1 W/m. Still, allowing 10 9 Uranium ions at 1 GeV/u to pass through the whole Main-<strong>Separator</strong> is equivalent to the uranium primary beam rate nowadays 218
DRAFT at the FRS (2·10 9 /spill as in 2004) even about a factor 5 higher due to the higher repetition rate. The FRS target area cannot be accessed directly during experiments and stays as an area with controlled access most of the time. 2.4.A6.2.4 Activation of air Activation of air can lead to exposition of personnel if areas with previous beam operation have to be entered. This exposition can be substantially reduced by applying a ventilation system in areas under consideration. However the outlet air of these areas may again lead to exposition of population and personnel. Hadronic or heavy ion beams in the energy range of 1 GeV/u produce a variety of radioactive isotopes while passing through air. Short-lived positron emitters like 11 C, 13 N, 14 O and 15 O are being produced due to spallation reactions. 7 Be and 32 P which have lifetimes in the order of weeks, play an important role in activation of air. Longer lived beta-emitters like 3 H and 14 C are expected to be produced as well in substantial quantities. Finally, 41 Ar can be produced by capturing thermal or slow neutrons by the noble gas argon. It is important to reduce the path length of the neutrons in the air to reduce the activation process in air. A fully encapsulated target area is planned to effectively reduce the activation of air, (see Figure 2.4.164). 2.4.A6.2.5 Activation of soil Roughly 70 neutrons with energies larger than 100 MeV are being produced when a uranium particle with the energy of 1 GeV/u is completely stopped in a thick iron target. These neutrons may also lead to activation of soil when there is no sufficient shielding below the target area. 22 Na, 54 Mn, and depending on the composition of the soil 60 Co and other trace elements are of greatest relevance in terms of polluting the ground water. 219
Page 1 and 2:
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
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DRAFT experiment the EXL community
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2.4.A1.3 Slow control and monitorin
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DRAFT Figure 2.4.139: Architecture
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DRAFT all FAIR accelerators will be
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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 and 208: DRAFT Figure 2.4.162: Scheme of the
Page 209 and 210: 2.4.A6.2.2 Shielding against direct
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: DRAFT catcher 7 Be, 22 Na and 24 Na
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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