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Line 4: |
Line 4: |
| | | |
| Tagging range (for a 12 GeV electron beam): | | Tagging range (for a 12 GeV electron beam): |
− | * <b>Photons between 3.0 GeV and 8.1 GeV</b>: detector positions correspond to 60 MeV steps in E<sub>γ</sub> with <b>30-50% sampling</b>. The counter widths are chosen such that the typical rate per counter is limited to 3-4 MHz at 10<sup>8</sup> γ/sec on target; | + | * <b>Photons between 3.0 GeV and 8.2 GeV</b>: detector positions correspond to 60 MeV steps in E<sub>γ</sub> with <b>30-50% sampling</b>. The counter widths are chosen such that the typical rate per counter is limited to 3-4 MHz at 10<sup>8</sup> γ/sec on target; |
− | * <b>Photons between 9.1 GeV and 11.78 GeV</b>: scintillators cover the full energy range, counter widths were calculated such that the typical rate per counter is limited to 1-4 MHz at 10<sup>8</sup> γ/sec on target. | + | * <b>Photons between 9.2 GeV and 11.78 GeV</b>: scintillators cover the full energy range, counter widths were calculated such that the typical rate per counter is limited to 1-4 MHz at 10<sup>8</sup> γ/sec on target. |
| All counters will be mounted at angles such that they face normal to the path of the scattered electrons. | | All counters will be mounted at angles such that they face normal to the path of the scattered electrons. |
| | | |
Line 34: |
Line 34: |
| | 41 – 64 || 10.0 || 8 / 18 cm || 10.46 – 11.01 || 18.7 – 26.8 | | | 41 – 64 || 10.0 || 8 / 18 cm || 10.46 – 11.01 || 18.7 – 26.8 |
| |- | | |- |
− | | 65 – 81 || 8.0 || 8 / 18 cm || 10.06 – 10.46 || 21.7 – 26.0 | + | | 65 – 81 || 8.0 || 8 / 18 cm || 10.05 – 10.46 || 21.7 – 26.0 |
| |- | | |- |
− | | 82 – 131 || 5.0 || 8 / 13 / 18 cm || 9.10 – 10.06 || 16.4 – 22.2 | + | | 82 – 139 || 5.0 || 8 / 13 / 18 cm || 9.20 – 10.05 || 16.4 – 22.2 |
| |- | | |- |
− | | 183* – 207 || 4.0 || 8 / 13 / 18 cm || 7.07 – 8.08 || 16.6 – 17.2 | + | | 140 – 195 || 4.0 || 8 / 13 / 18 cm || 7.07 – 8.13 || 16.6 – 17.2 |
| |- | | |- |
− | | 208 – 274 || 3.0 || 8 cm || 3.05 – 7.03 || 13.7 – 20.3 | + | | 196 – 274 || 3.0 || 8 cm || 3.05 – 7.03 || 13.7 – 20.3 |
| |} | | |} |
| | | |
Line 67: |
Line 67: |
| ==Fixed array counter positions== | | ==Fixed array counter positions== |
| | | |
− | List updated by D. Sober based on B. Crahen's drawings of counter positions on mounting plates (7/1/14)
| + | Table moved to [[Position and Energy Boundaries for all installed Counters]] |
− | | + | |
− | counter #: consecutive counter number (in parenthesis: positions not filled for coh. edge at 9.0 GeV)
| + | |
− | coordinates: (x<sub>center</sub>,y<sub>center</sub>) position of counter center
| + | |
− | for z=upwards, x=along focal plane, y=towards vacuum chamber
| + | |
− | origin of coord.: intersection of a 0.3 GeV electron ray with the focal plane
| + | |
− | angle: entry angle of electron rays with respect to the focal plane
| + | |
− | width: width of scintillators (in parenthesis: changed width for coh. edge at 8.0 or 7.7 GeV)
| + | |
− |
| + | |
− | {| border="1" style="text-align:center;" cellpadding="10" cellspacing="0"
| + | |
− | |- style="font-style:bold; color:blue;"
| + | |
− | |!scope="row" | counter # || E<sub>γ</sub><sup>high</sup> || E<sub>γ</sub><sup>low</sup> || x<sub>center</sub> || y<sub>center</sub> || angle || width
| + | |
− | |-
| + | |
− | | || (GeV) || (GeV) || (cm) || (cm) || (deg) || (cm)
| + | |
− | |-
| + | |
− | | 1 || 11.78 || 11.77 || -0.695 || -18.0 || 44.078 || 2.1
| + | |
− | |-
| + | |
− | | 2 || 11.77 || 11.76 || -7.963 || -8.0 || 43.087 || 2.1
| + | |
− | |-
| + | |
− | | 3 || 11.76 || 11.749 || 6.211 || -18.0 || 42.116 || 2.1
| + | |
− | |-
| + | |
− | | 4 || 11.749 || 11.738 || -1.669 || -8.0 || 41.162 || 2.1
| + | |
− | |-
| + | |
− | | 5 || 11.738 || 11.726 || 13.382 || -18.0 || 40.237 || 2.1
| + | |
− | |-
| + | |
− | | 6 || 11.726 || 11.714 || 4.859 || -8.0 || 39.333 || 2.1
| + | |
− | |-
| + | |
− | | 7 || 11.714 || 11.701 || 20.808 || -18.0 || 38.451 || 2.1
| + | |
− | |-
| + | |
− | | 8 || 11.701 || 11.688 || 11.632 || -8.0 || 37.593 || 2.1
| + | |
− | |-
| + | |
− | | 9 || 11.688 || 11.674 || 28.506 || -18.0 || 36.755 || 2.1
| + | |
− | |-
| + | |
− | | 10 || 11.674 || 11.66 || 18.669 || -8.0 || 35.942 || 2.1
| + | |
− | |-
| + | |
− | | 11 || 11.66 || 11.645 || 36.494 || -18.0 || 35.149 || 2.1
| + | |
− | |-
| + | |
− | | 12 || 11.645 || 11.629 || 25.982 || -8.0 || 34.376 || 2.1
| + | |
− | |-
| + | |
− | | 13 || 11.629 || 11.613 || 44.783 || -18.0 || 33.623 || 2.1
| + | |
− | |-
| + | |
− | | 14 || 11.613 || 11.596 || 33.581 || -8.0 || 32.888 || 2.1
| + | |
− | |-
| + | |
− | | 15 || 11.596 || 11.578 || 53.389 || -18.0 || 32.172 || 2.1
| + | |
− | |-
| + | |
− | | 16 || 11.578 || 11.56 || 41.480 || -8.0 || 31.474 || 2.1
| + | |
− | |-
| + | |
− | | 17 || 11.56 || 11.541 || 62.328 || -18.0 || 30.793 || 2.1
| + | |
− | |-
| + | |
− | | 18 || 11.541 || 11.521 || 49.695 || -8.0 || 30.131 || 2.1
| + | |
− | |-
| + | |
− | | 19 || 11.521 || 11.5 || 71.609 || -18.0 || 29.485 || 2.1
| + | |
− | |-
| + | |
− | | 20 || 11.5 || 11.478 || 58.238 || -8.0 || 28.855 || 2.1
| + | |
− | |-
| + | |
− | | 21 || 11.478 || 11.456 || 81.254 || -18.0 || 28.242 || 2.1
| + | |
− | |-
| + | |
− | | 22 || 11.456 || 11.433 || 67.120 || -8.0 || 27.645 || 2.1
| + | |
− | |-
| + | |
− | | 23 || 11.433 || 11.414 || 90.657 || -18.0 || 27.130 || 1.6
| + | |
− | |-
| + | |
− | | 24 || 11.414 || 11.395 || 74.679 || -8.0 || 26.695 || 1.6
| + | |
− | |-
| + | |
− | | 25 || 11.395 || 11.376 || 98.531 || -18.0 || 26.269 || 1.6
| + | |
− | |-
| + | |
− | | 26 || 11.376 || 11.356 || 81.916 || -8.0 || 25.851 || 1.6
| + | |
− | |-
| + | |
− | | 27 || 11.356 || 11.335 || 106.635 || -18.0 || 25.442 || 1.6
| + | |
− | |-
| + | |
− | | 28 || 11.335 || 11.314 || 89.369 || -8.0 || 25.041 || 1.6
| + | |
− | |-
| + | |
− | | 29 || 11.314 || 11.292 || 114.974 || -18.0 || 24.648 || 1.6
| + | |
− | |-
| + | |
− | | 30 || 11.292 || 11.27 || 97.048 || -8.0 || 24.263 || 1.6
| + | |
− | |-
| + | |
− | | 31 || 11.27 || 11.247 || 123.554 || -18.0 || 23.885 || 1.6
| + | |
− | |-
| + | |
− | | 32 || 11.247 || 11.223 || 104.954 || -8.0 || 23.516 || 1.6
| + | |
− | |-
| + | |
− | | 33 || 11.223 || 11.199 || 132.380 || -18.0 || 23.153 || 1.6
| + | |
− | |-
| + | |
− | | 34 || 11.199 || 11.174 || 113.097 || -8.0 || 22.798 || 1.6
| + | |
− | |-
| + | |
− | | 35 || 11.174 || 11.148 || 141.461 || -18.0 || 22.450 || 1.6
| + | |
− | |-
| + | |
− | | 36 || 11.148 || 11.121 || 121.482 || -8.0 || 22.109 || 1.6
| + | |
− | |-
| + | |
− | | 37 || 11.121 || 11.094 || 150.798 || -18.0 || 21.775 || 1.6
| + | |
− | |-
| + | |
− | | 38 || 11.094 || 11.066 || 130.111 || -8.0 || 21.448 || 1.6
| + | |
− | |-
| + | |
− | | 39 || 11.066 || 11.038 || 160.397 || -18.0 || 21.128 || 1.6
| + | |
− | |-
| + | |
− | | 40 || 11.038 || 11.008 || 138.990 || -8.0 || 20.814 || 1.6
| + | |
− | |-
| + | |
− | | 41 || 11.008 || 10.989 || 169.323 || -18.0 || 20.563 || 1.0
| + | |
− | |-
| + | |
− | | 42 || 10.989 || 10.97 || 145.527 || -8.0 || 20.373 || 1.0
| + | |
− | |-
| + | |
− | | 43 || 10.97 || 10.951 || 175.613 || -18.0 || 20.186 || 1.0
| + | |
− | |-
| + | |
− | | 44 || 10.951 || 10.931 || 151.325 || -8.0 || 20.001 || 1.0
| + | |
− | |-
| + | |
− | | 45 || 10.931 || 10.911 || 182.011 || -18.0 || 19.818 || 1.0
| + | |
− | |-
| + | |
− | | 46 || 10.911 || 10.891 || 157.226 || -8.0 || 19.638 || 1.0
| + | |
− | |-
| + | |
− | | 47 || 10.891 || 10.87 || 188.516 || -18.0 || 19.460 || 1.0
| + | |
− | |-
| + | |
− | | 48 || 10.87 || 10.849 || 163.231 || -8.0 || 19.285 || 1.0
| + | |
− | |-
| + | |
− | | 49 || 10.849 || 10.828 || 195.133 || -18.0 || 19.111 || 1.0
| + | |
− | |-
| + | |
− | | 50 || 10.828 || 10.806 || 169.341 || -8.0 || 18.940 || 1.0
| + | |
− | |-
| + | |
− | | 51 || 10.806 || 10.784 || 201.859 || -18.0 || 18.771 || 1.0
| + | |
− | |-
| + | |
− | | 52 || 10.784 || 10.762 || 175.558 || -8.0 || 18.605 || 1.0
| + | |
− | |-
| + | |
− | | 53 || 10.762 || 10.739 || 208.697 || -18.0 || 18.441 || 1.0
| + | |
− | |-
| + | |
− | | 54 || 10.739 || 10.716 || 181.882 || -8.0 || 18.278 || 1.0
| + | |
− | |-
| + | |
− | | 55 || 10.716 || 10.692 || 215.648 || -18.0 || 18.118 || 1.0
| + | |
− | |-
| + | |
− | | 56 || 10.692 || 10.669 || 188.315 || -8.0 || 17.960 || 1.0
| + | |
− | |-
| + | |
− | | 57 || 10.669 || 10.644 || 222.713 || -18.0 || 17.803 || 1.0
| + | |
− | |-
| + | |
− | | 58 || 10.644 || 10.62 || 194.858 || -8.0 || 17.649 || 1.0
| + | |
− | |-
| + | |
− | | 59 || 10.62 || 10.595 || 229.891 || -18.0 || 17.497 || 1.0
| + | |
− | |-
| + | |
− | | 60 || 10.595 || 10.57 || 201.511 || -8.0 || 17.347 || 1.0
| + | |
− | |-
| + | |
− | | 61 || 10.57 || 10.544 || 237.186 || -18.0 || 17.199 || 1.0
| + | |
− | |-
| + | |
− | | 62 || 10.544 || 10.518 || 208.276 || -8.0 || 17.053 || 1.0
| + | |
− | |-
| + | |
− | | 63 || 10.518 || 10.492 || 244.598 || -18.0 || 16.908 || 1.0
| + | |
− | |-
| + | |
− | | 64 || 10.492 || 10.465 || 215.154 || -8.0 || 16.766 || 1.0
| + | |
− | |-
| + | |
− | | 65 || 10.465 || 10.443 || 251.745 || -18.0 || 16.639 || 0.8
| + | |
− | |-
| + | |
− | | 66 || 10.443 || 10.421 || 221.088 || -8.0 || 16.528 || 0.8
| + | |
− | |-
| + | |
− | | 67 || 10.421 || 10.399 || 257.848 || -18.0 || 16.418 || 0.8
| + | |
− | |-
| + | |
− | | 68 || 10.399 || 10.377 || 226.750 || -8.0 || 16.309 || 0.8
| + | |
− | |-
| + | |
− | | 69 || 10.377 || 10.354 ||264.026 || -18.0 || 16.201 || 0.8
| + | |
− | |-
| + | |
− | | 70 || 10.354 || 10.331 || 232.485 || -8.0 || 16.095 || 0.8
| + | |
− | |-
| + | |
− | | 71 || 10.331 || 10.308 || 270.280 || -18.0 || 15.989 || 0.8
| + | |
− | |-
| + | |
− | | 72 || 10.308 || 10.284 || 238.295 || -8.0 || 15.885 || 0.8
| + | |
− | |-
| + | |
− | | 73 || 10.284 || 10.26 || 276.611 || -18.0 || 15.781 || 0.8
| + | |
− | |-
| + | |
− | | 74 || 10.26 || 10.236 || 244.179 || -8.0 || 15.679 || 0.8
| + | |
− | |-
| + | |
− | | 75 || 10.236 || 10.212 || 283.018 || -18.0 || 15.578 || 0.8
| + | |
− | |-
| + | |
− | | 76 || 10.212 || 10.187 || 250.138 || -8.0 || 15.478 || 0.8
| + | |
− | |-
| + | |
− | | 77 || 10.187 || 10.162 || 289.503 || -18.0 || 15.379 || 0.8
| + | |
− | |-
| + | |
− | | 78 || 10.162 || 10.137 || 256.172 || -8.0 || 15.281 || 0.8
| + | |
− | |-
| + | |
− | | 79 || 10.137 || 10.112 || 296.064 || -18.0 || 15.184 || 0.8
| + | |
− | |-
| + | |
− | | 80 || 10.112 || 10.086 || 262.281 || -8.0 || 15.088 || 0.8
| + | |
− | |-
| + | |
− | | 81 || 10.086 || 10.06 || 284.034 || -13.0 || 14.993 || 0.8
| + | |
− | |-
| + | |
− | | 82 || 10.06 || 10.044 || 305.422 || -18.0 || 14.916 || 0.5
| + | |
− | |-
| + | |
− | | 83 || 10.044 || 10.027 || 269.828 || -8.0 || 14.858 || 0.5
| + | |
− | |-
| + | |
− | | 84 || 10.027 || 10.011 || 290.707 || -13.0 || 14.800 || 0.5
| + | |
− | |-
| + | |
− | | 85 || 10.011 || 9.994 || 311.747 || -18.0 || 14.742 || 0.5
| + | |
− | |-
| + | |
− | | 86 || 9.994 || 9.977 || 275.713 || -8.0 || 14.685 || 0.5
| + | |
− | |-
| + | |
− | | 87 || 9.977 || 9.96 || 296.845 || -13.0 || 14.628 || 0.5
| + | |
− | |-
| + | |
− | | 88 || 9.96 || 9.943 || 318.140 || -18.0 || 14.572 || 0.5
| + | |
− | |-
| + | |
− | | 89 || 9.943 || 9.926 || 281.664 || -8.0 || 14.516 || 0.5
| + | |
− | |-
| + | |
− | | 90 || 9.926 || 9.909 || 303.052 || -13.0 || 14.460 || 0.5
| + | |
− | |-
| + | |
− | | 91 || 9.909 || 9.892 || 324.603 || -18.0 || 14.405 || 0.5
| + | |
− | |-
| + | |
− | | 92 || 9.892 || 9.874 || 287.683 || -8.0 || 14.350 || 0.5
| + | |
− | |-
| + | |
− | | 93 || 9.874 || 9.857 || 309.327 || -13.0 || 14.295 || 0.5
| + | |
− | |-
| + | |
− | | 94 || 9.857 || 9.839 || 331.134 || -18.0 || 14.241 || 0.5
| + | |
− | |-
| + | |
− | | 95 || 9.839 || 9.821 || 293.770 || -8.0 || 14.187 || 0.5
| + | |
− | |-
| + | |
− | | 96 || 9.821 || 9.803 || 315.671 || -13.0 || 14.134 || 0.5
| + | |
− | |-
| + | |
− | | 97 || 9.803 || 9.785 || 337.735 || -18.0 || 14.081 || 0.5
| + | |
− | |-
| + | |
− | | 98 || 9.785 || 9.767 || 299.925 || -8.0 || 14.028 || 0.5
| + | |
− | |-
| + | |
− | | 99 || 9.767 || 9.749 || 322.083 || -13.0 || 13.975 || 0.5
| + | |
− | |-
| + | |
− | | 100 || 9.749 || 9.73 || 344.405 || -18.0 || 13.923 || 0.5
| + | |
− | |-
| + | |
− | | 101 || 9.73 || 9.712 || 306.148 || -8.0 || 13.871 || 0.5
| + | |
− | |-
| + | |
− | | 102 || 9.712 || 9.693 || 328.564 || -13.0 || 13.820 || 0.5
| + | |
− | |-
| + | |
− | | 103 || 9.693 || 9.674 || 352.698 || -18.38 || 13.769 || 0.5
| + | |
− | |-
| + | |
− | | 104 || 9.674 || 9.655 || 312.440 || -8.0 || 13.718 || 0.5
| + | |
− | |-
| + | |
− | | 105 || 9.655 || 9.636 || 336.994 || -13.46 || 13.668 || 0.5
| + | |
− | |-
| + | |
− | | 106 || 9.636 || 9.617 || 359.525 || -18.38 || 13.617 || 0.5
| + | |
− | |-
| + | |
− | | 107 || 9.617 || 9.598 || 318.800 || -8.0 || 13.568 || 0.5
| + | |
− | |-
| + | |
− | | 108 || 9.598 || 9.579 || 343.318 || -13.38 || 13.518 || 0.5
| + | |
− | |-
| + | |
− | | 109 || 9.579 || 9.559 || 365.679 || -18.2 || 13.469 || 0.5
| + | |
− | |-
| + | |
− | | 110 || 9.559 || 9.54 || 325.229 || -8.0 || 13.420 || 0.5
| + | |
− | |-
| + | |
− | | 111 || 9.54 || 9.52 || 350.344 || -13.46 || 13.372 || 0.5
| + | |
− | |-
| + | |
− | | 112 || 9.52 || 9.5 || 371.778 || -18.0 || 13.324 || 0.5
| + | |
− | |-
| + | |
− | | 113 || 9.5 || 9.48 || 331.727 || -8.0 || 13.276 || 0.5
| + | |
− | |-
| + | |
− | | 114 || 9.48 || 9.46 || 358.420 || -13.76 || 13.228 || 0.5
| + | |
− | |-
| + | |
− | | 115 || 9.46 || 9.44 || 378.796 || -18.0 || 13.181 || 0.5
| + | |
− | |-
| + | |
− | | 116 || 9.44 || 9.42 || 338.294 || -8.0 || 13.134 || 0.5
| + | |
− | |-
| + | |
− | | 117 || 9.42 || 9.399 || 363.972 || -13.46 || 13.088 || 0.5
| + | |
− | |-
| + | |
− | | 118 || 9.399 || 9.379 || 385.883 || -18.0 || 13.041 || 0.5
| + | |
− | |-
| + | |
− | | 119 || 9.379 || 9.358 || 344.930 || -8.0 || 12.996 || 0.5
| + | |
− | |-
| + | |
− | | 120 || 9.358 || 9.337 || 368.902 || -13.0 || 12.950 || 0.5
| + | |
− | |-
| + | |
− | | 121 || 9.337 || 9.316 || 393.040 || -18.0 || 12.904 || 0.5
| + | |
− | |-
| + | |
− | | 122 || 9.316 || 9.295 || 351.636 || -8.0 || 12.859 || 0.5
| + | |
− | |-
| + | |
− | | 123 || 9.295 || 9.274 || 375.868 || -13.0 || 12.815 || 0.5
| + | |
− | |-
| + | |
− | | 124 || 9.274 || 9.253 || 400.266 || -18.0 || 12.770 || 0.5
| + | |
− | |-
| + | |
− | | 125 || 9.253 || 9.231 || 358.411 || -8.0 || 12.726 || 0.5
| + | |
− | |-
| + | |
− | | 126 || 9.231 || 9.21 || 382.904 || -13.0 || 12.682 || 0.5
| + | |
− | |-
| + | |
− | | 127 || 9.21 || 9.188 || 407.563 || -18.0 || 12.639 || 0.5
| + | |
− | |-
| + | |
− | | 128 || 9.188 || 9.166 || 365.255 || -8.0 || 12.595 || 0.5
| + | |
− | |-
| + | |
− | | 129 || 9.166 || 9.144 || 390.009 || -13.0 || 12.552 || 0.5
| + | |
− | |-
| + | |
− | | 130 || 9.144 || 9.122 || 414.929 || -18.0 || 12.509 || 0.5
| + | |
− | |-
| + | |
− | | 131 || 9.122 || 9.1 || 372.169 || -8.0 || 12.467 || 0.5
| + | |
− | |- style="color:grey;"
| + | |
− | !scope="row" | (132) || 9.1 || 9.078 || 397.184 || -13.0 || 12.425 || (0.5)
| + | |
− | |- style="color:grey;"
| + | |
− | !scope="row" | (133) || 9.078 || 9.055 || 422.365 || -18.0 || 12.383 || (0.5)
| + | |
− | |- style="color:grey;"
| + | |
− | !scope="row" | (134) || 9.055 || 9.033 || 379.153 || -8.0 || 12.341 || (0.5)
| + | |
− | |- style="color:grey;"
| + | |
− | !scope="row" | (135) || 9.033 || 9.01 || 404.428 || -13.0 || 12.300 || (0.5)
| + | |
− | |- style="color:grey;"
| + | |
− | !scope="row" | (136) || 9.01 || 8.987 || 429.870 || -18.0 || 12.259 || (0.5)
| + | |
− | |- style="color:grey;"
| + | |
− | !scope="row" | (137) || 8.987 || 8.964 || 386.206 || -8.0 || 12.218 || (0.5)
| + | |
− | |- style="color:grey;"
| + | |
− | !scope="row" | (138) || 8.964 || 8.941 || 411.743 || -13.0 || 12.178 || (0.5)
| + | |
− | |- style="color:grey;"
| + | |
− | !scope="row" | (139) || 8.941 || 8.918 || 437.445 || -18.0 || 12.137 || (0.5)
| + | |
− | |- style="color:grey;"
| + | |
− | !scope="row" | (140) || 8.918 || 8.899 || 393.090 || -8.0 || 12.101 || (0.4)
| + | |
− | |- style="color:grey;"
| + | |
− | !scope="row" | (141) || 8.899 || 8.881 || 418.385 || -13.0 || 12.069 || (0.4)
| + | |
− | |- style="color:grey;"
| + | |
− | !scope="row" | (142) || 8.881 || 8.862 || 443.811 || -18.0 || 12.038 || (0.4)
| + | |
− | |- style="color:grey;"
| + | |
− | !scope="row" | (143) || 8.862 || 8.843 || 398.837 || -8.0 || 12.006 || (0.4)
| + | |
− | |- style="color:grey;"
| + | |
− | !scope="row" | (144) || 8.843 || 8.824 || 424.336 || -13.0 || 11.975 || (0.4)
| + | |
− | |- style="color:grey;"
| + | |
− | !scope="row" | (145) || 8.824 || 8.805 || 449.967 || -18.0 || 11.944 || (0.4)
| + | |
− | |- style="color:grey;"
| + | |
− | !scope="row" | (146) || 8.805 || 8.786 || 404.628 || -8.0 || 11.913 || (0.4)
| + | |
− | |- style="color:grey;"
| + | |
− | !scope="row" | (147) || 8.786 || 8.766 || 430.333 || -13.0 || 11.882 || (0.4)
| + | |
− | |- style="color:grey;"
| + | |
− | !scope="row" | (148) || 8.766 || 8.747 || 457.984 || -18.38 || 11.851 || (0.4)
| + | |
− | |- style="color:grey;"
| + | |
− | !scope="row" | (149) || 8.747 || 8.728 || 410.464 || -8.0 || 11.821 || (0.4)
| + | |
− | |- style="color:grey;"
| + | |
− | !scope="row" | (150) || 8.728 || 8.708 || 440.024 || -13.76 || 11.790 || (0.4)
| + | |
− | |- style="color:grey;"
| + | |
− | !scope="row" | (151) || 8.708 || 8.689 || 464.244 || -18.38 || 11.760 || (0.4)
| + | |
− | |- style="color:grey;"
| + | |
− | !scope="row" | (152) || 8.689 || 8.669 || 416.345 || -8.0 || 11.730 || (0.4)
| + | |
− | |- style="color:grey;"
| + | |
− | !scope="row" | (153) || 8.669 || 8.649 || 444.789 || -13.48 || 11.700 || (0.4)
| + | |
− | |- style="color:grey;"
| + | |
− | !scope="row" | (154) || 8.649 || 8.629 || 469.687 || -18.2 || 11.671 || (0.4)
| + | |
− | |- style="color:grey;"
| + | |
− | !scope="row" | (155) || 8.629 || 8.609 || 422.270 || -8.0 || 11.641 || (0.4)
| + | |
− | |- style="color:grey;"
| + | |
− | !scope="row" | (156) || 8.609 || 8.589 || 449.577 || -13.2 || 11.612 || (0.4)
| + | |
− | |- style="color:grey;"
| + | |
− | !scope="row" | (157) || 8.589 || 8.569 || 475.037 || -18.0 || 11.582 || (0.4)
| + | |
− | |- style="color:grey;"
| + | |
− | !scope="row" | (158) || 8.569 || 8.549 || 428.240 || -8.0 || 11.553 || (0.4)
| + | |
− | |- style="color:grey;"
| + | |
− | !scope="row" | (159) || 8.549 || 8.529 || 456.257 || -13.3 || 11.524 || (0.4)
| + | |
− | |- style="color:grey;"
| + | |
− | !scope="row" | (160) || 8.529 || 8.509 || 481.415 || -18.0 || 11.496 || (0.4)
| + | |
− | |- style="color:grey;"
| + | |
− | !scope="row" | (161) || 8.509 || 8.488 || 434.254 || -8.0 || 11.467 || (0.4)
| + | |
− | |- style="color:grey;"
| + | |
− | !scope="row" | (162) || 8.488 || 8.468 || 464.746 || -13.76 || 11.438 || (0.4)
| + | |
− | |- style="color:grey;"
| + | |
− | !scope="row" | (163) || 8.468 || 8.447 || 487.838 || -18.0 || 11.410 || (0.4)
| + | |
− | |- style="color:grey;"
| + | |
− | !scope="row" | (164) || 8.447 || 8.427 || 439.555 || -7.85 || 11.382 || (0.4)
| + | |
− | |- style="color:grey;"
| + | |
− | !scope="row" | (165) || 8.427 || 8.406 || 469.520 || -13.46 || 11.354 || (0.4)
| + | |
− | |- style="color:grey;"
| + | |
− | !scope="row" | (166) || 8.406 || 8.385 || 494.304 || -18.0 || 11.326 || (0.4)
| + | |
− | |- style="color:grey;"
| + | |
− | !scope="row" | (167) || 8.385 || 8.364 || 444.890 || -7.7 || 11.298 || (0.4)
| + | |
− | |- style="color:grey;"
| + | |
− | !scope="row" | (168) || 8.364 || 8.343 || 474.569 || -13.2 || 11.271 || (0.4)
| + | |
− | |- style="color:grey;"
| + | |
− | !scope="row" | (169) || 8.343 || 8.322 || 500.813 || -18.0 || 11.243 || (0.4)
| + | |
− | |- style="color:grey;"
| + | |
− | !scope="row" | (170) || 8.322 || 8.301 || 450.257 || -7.54 || 11.216 || (0.4)
| + | |
− | |- style="color:grey;"
| + | |
− | !scope="row" | (171) || 8.301 || 8.279 || 479.900 || -13.0 || 11.189 || (0.4)
| + | |
− | |- style="color:grey;"
| + | |
− | !scope="row" | (172) || 8.279 || 8.258 || 507.367 || -18.0 || 11.162 || (0.4)
| + | |
− | |- style="color:grey;"
| + | |
− | !scope="row" | (173) || 8.258 || 8.237 || 458.755 || -8.0 || 11.135 || (0.4)
| + | |
− | |- style="color:grey;"
| + | |
− | !scope="row" | (174) || 8.237 || 8.215 || 486.295 || -13.0 || 11.108 || (0.4)
| + | |
− | |- style="color:grey;"
| + | |
− | !scope="row" | (175) || 8.215 || 8.194 || 513.965 || -18.0 || 11.082 || (0.4)
| + | |
− | |- style="color:grey;"
| + | |
− | !scope="row" | (176) || 8.194 || 8.177 || 464.730 || -8.0 || 11.058 || (0.3)
| + | |
− | |- style="color:grey;"
| + | |
− | !scope="row" | (177) || 8.177 || 8.161 || 491.926 || -13.0 || 11.039 || (0.3)
| + | |
− | |- style="color:grey;"
| + | |
− | !scope="row" | (178) || 8.161 || 8.145 || 519.218 || -18.0 || 11.019 || (0.3)
| + | |
− | |- style="color:grey;"
| + | |
− | !scope="row" | (179) || 8.145 || 8.128 || 469.435 || -8.0 || 10.999 || (0.3)
| + | |
− | |- style="color:grey;"
| + | |
− | !scope="row" | (180) || 8.128 || 8.112 || 496.780 || -13.0 || 10.980 || (0.3)
| + | |
− | |- style="color:grey;"
| + | |
− | !scope="row" | (181) || 8.112 || 8.095 || 524.221 || -18.0 || 10.960 || (0.3)
| + | |
− | |- style="color:grey;"
| + | |
− | !scope="row" | (182) || 8.095 || 8.079 || 474.164 || -8.0 || 10.941 || (0.3)
| + | |
− | |-
| + | |
− | | 183 || 8.079 || 8.062 || 501.658 || -13.0 || 10.922 || 0.4 (0.3)
| + | |
− | |- style="color:grey;"
| + | |
− | !scope="row" | (184) || 8.062 || 8.045 || 529.248 || -18.0 || 10.903 ||(0.3)
| + | |
− | |-
| + | |
− | | 185 || 8.045 || 8.029 || 478.919 || -8.0 || 10.883 || 0.4 (0.3)
| + | |
− | |- style="color:grey;"
| + | |
− | !scope="row" | (186) || 8.029 || 8.012 || 506.561 || -13.0 || 10.864 || (0.3)
| + | |
− | |-
| + | |
− | | 187 || 8.012 || 7.995 || 534.299 || -18.0 || 10.845 || 0.4 (0.3)
| + | |
− | |- style="color:grey;"
| + | |
− | !scope="row" | (188) || 7.995 || 7.978 || 483.698 || -8.0 || 10.827 || (0.3)
| + | |
− | |-
| + | |
− | | 189 || 7.978 || 7.961 || 511.488 || -13.0 || 10.808 || 0.4 (0.3)
| + | |
− | |- style="color:grey;"
| + | |
− | !scope="row" | (190) || 7.961 || 7.944 || 513.136 || -18.0 || 10.789 || (0.3)
| + | |
− | |-
| + | |
− | | 191 || 7.944 || 7.927 ||488.50 || -8.0 || 10.770 || 0.4 (0.3)
| + | |
− | |- style="color:grey;"
| + | |
− | !scope="row" | (192) || 7.927 || 7.91 || 516.44 || -13.0 || 10.752 || (0.3)
| + | |
− | |-
| + | |
− | | 193 || 7.91 || 7.893 || 544.47 || -18.0 || 10.733 || 0.4 (0.3)
| + | |
− | |-
| + | |
− | | 194 || 7.869 || 7.851 || 495.67 || -8.0 || 10.679 || 0.4 (0.3)
| + | |
− | |-
| + | |
− | | 195 || 7.809 || 7.791 || 554.65 || -18.0 || 10.616 || 0.4 (0.3)
| + | |
− | |-
| + | |
− | | 196 || 7.749 || 7.731 || 506.90 || -8.0 || 10.555 || 0.4 (0.3)
| + | |
− | |-
| + | |
− | | 197 || 7.689 || 7.671 || 512.49 || -8.0 || 10.495 || 0.4 (0.3)
| + | |
− | |-
| + | |
− | | 198 || 7.629 || 7.611 || 518.06 || -8.0 || 10.436 || 0.4 (0.3)
| + | |
− | |-
| + | |
− | | 199 || 7.569 || 7.551 || 523.60 || -8.0 || 10.378 || 0.4 (0.3)
| + | |
− | |-
| + | |
− | | 200 || 7.509 || 7.491 || 529.13 || -8.0 || 10.322 || 0.4 (0.3)
| + | |
− | |-
| + | |
− | | 201 || 7.449 || 7.431 || 534.63 || -8.0 || 10.267 || 0.4 (0.3)
| + | |
− | |-
| + | |
− | | 202 || 7.389 || 7.371 || 540.12 || -8.0 || 10.214 || 0.4 (0.3)
| + | |
− | |-
| + | |
− | | 203 || 7.329 || 7.311 || 545.59 || -8.0 || 10.161 || 0.4 (0.3)
| + | |
− | |-
| + | |
− | | 204 || 7.269 || 7.251 || 551.04 || -8.0 || 10.109 || 0.4 (0.3)
| + | |
− | |-
| + | |
− | | 205 || 7.209 || 7.190 || 612.84 || -18.0 || 10.059 || 0.4 (0.3)
| + | |
− | |-
| + | |
− | | 206 || 7.150 || 7.130 || 618.54 || -18.0 || 10.010 || 0.4 (0.3)
| + | |
− | |-
| + | |
− | | 207 || 7.090 || 7.070 || 624.22 || -18.0 || 9.961 || 0.4 (0.3)
| + | |
− | |-
| + | |
− | | 208 || 7.030 || 7.010 || 629.87 || -18.0 || 9.914 || 0.3
| + | |
− | |-
| + | |
− | | 209 || 6.970 || 6.950 || 578.02 || -8.0 || 9.867 || 0.3
| + | |
− | |-
| + | |
− | | 210 || 6.910 || 6.890 || 641.13 || -18.0 || 9.822 || 0.3
| + | |
− | |-
| + | |
− | | 211 || 6.850 || 6.830 || 588.70 || -8.0 || 9.777 || 0.3
| + | |
− | |-
| + | |
− | | 212 || 6.790 || 6.770 || 652.31 || -18.0 || 9.733 || 0.3
| + | |
− | |-
| + | |
− | | 213 || 6.730 || 6.710 || 599.31 || -8.0 || 9.690 || 0.3
| + | |
− | |-
| + | |
− | | 214 || 6.670 || 6.650 || 663.42 || -18.0 || 9.648 || 0.3
| + | |
− | |-
| + | |
− | | 215 || 6.610 || 6.590 || 609.87 || -8.0 || 9.607 || 0.3
| + | |
− | |-
| + | |
− | | 216 || 6.550 || 6.530 || 674.46 || -18.0 || 9.566 || 0.3
| + | |
− | |-
| + | |
− | | 217 || 6.490 || 6.470 || 620.37 || -8.0 || 9.526 || 0.3
| + | |
− | |-
| + | |
− | | 218 || 6.430 || 6.410 || 685.44 || -18.0 || 9.487 || 0.3
| + | |
− | |-
| + | |
− | | 219 || 6.371 || 6.349 || 690.90 || -18.0 || 9.449 || 0.3
| + | |
− | |-
| + | |
− | | 220 || 6.311 || 6.289 || 636.01 || -8.0 || 9.411 || 0.3
| + | |
− | |-
| + | |
− | | 221 || 6.251 || 6.229 || 641.20 || -8.0 || 9.374 || 0.3
| + | |
− | |-
| + | |
− | | 222 || 6.191 || 6.169 || 646.38 || -8.0 || 9.337 || 0.3
| + | |
− | |-
| + | |
− | | 223 || 6.131 || 6.109 || 651.54 || -8.0 || 9.301 || 0.3
| + | |
− | |-
| + | |
− | | 224 || 6.071 || 6.049 || 687.34 || -13.0 || 9.266 || 0.3
| + | |
− | |-
| + | |
− | | 225 || 6.011 || 5.989 || 661.83 || -8.0 || 9.231 || 0.3
| + | |
− | |-
| + | |
− | | 226 || 5.951 || 5.929 || || -8.0 || 9.197 || 0.3
| + | |
− | |-
| + | |
− | | 227 || 5.891 || 5.869 || 672.08 || -8.0 || 9.163 || 0.3
| + | |
− | |-
| + | |
− | | 228 || 5.831 || 5.809 || 677.18 || -8.0 || 9.130 || 0.3
| + | |
− | |-
| + | |
− | | 229 || 5.771 || 5.749 || 682.27 || -8.0 || 9.098 || 0.3
| + | |
− | |-
| + | |
− | | 230 || 5.711 || 5.689 || 687.36 || -8.0 || 9.066 || 0.3
| + | |
− | |-
| + | |
− | | 231 || 5.651 || 5.629 || 692.43 || -8.0 || 9.034 || 0.3
| + | |
− | |-
| + | |
− | | 232 || 5.591 || 5.569 || 697.49 || -8.0 || 9.003 || 0.3
| + | |
− | |-
| + | |
− | | 233 || 5.531 || 5.509 || 702.55 || -8.0 || 8.973 || 0.3
| + | |
− | |-
| + | |
− | | 234 || 5.471 || 5.449 || 707.59 || -8.0 || 8.943 || 0.3
| + | |
− | |-
| + | |
− | | 235 || 5.412 || 5.388 || 712.62 || -8.0 || 8.913 || 0.3
| + | |
− | |-
| + | |
− | | 236 || 5.352 || 5.328 || 717.64 || -8.0 || 8.884 || 0.3
| + | |
− | |-
| + | |
− | | 237 || 5.292 || 5.268 || 722.66 || -8.0 || 8.855 || 0.3
| + | |
− | |-
| + | |
− | | 238 || 5.232 || 5.208 || 727.66 || -8.0 || 8.826 || 0.3
| + | |
− | |-
| + | |
− | | 239 || 5.172 || 5.148 || 732.66 || -8.0 || 8.798 || 0.3
| + | |
− | |-
| + | |
− | | 240 || 5.112 || 5.088 || 737.64 || -8.0 || 8.771 || 0.3
| + | |
− | |-
| + | |
− | | 241 || 5.052 || 5.028 || 742.62 || -8.0 || 8.743 || 0.3
| + | |
− | |-
| + | |
− | | 242 || 4.992 || 4.968 || 747.59 || -8.0 || 8.716 || 0.3
| + | |
− | |-
| + | |
− | | 243 || 4.932 || 4.908 || 752.55 || -8.0 || 8.690 || 0.3
| + | |
− | |-
| + | |
− | | 244 || 4.872 || 4.848 || 757.50 || -8.0 || 8.664 || 0.3
| + | |
− | |-
| + | |
− | | 245 || 4.812 || 4.788 || 762.45 || -8.0 || 8.638 || 0.3
| + | |
− | |-
| + | |
− | | 246 || 4.752 || 4.728 || 767.38 || -8.0 || 8.612 || 0.3
| + | |
− | |-
| + | |
− | | 247 || 4.692 || 4.668 || 772.31 || -8.0 || 8.587 || 0.3
| + | |
− | |-
| + | |
− | | 248 || 4.632 || 4.608 || 777.23 || -8.0 || 8.562 || 0.3
| + | |
− | |-
| + | |
− | | 249 || 4.572 || 4.548 || 782.15 || -8.0 || 8.537 || 0.3
| + | |
− | |-
| + | |
− | | 250 || 4.512 || 4.488 || 787.06 || -8.0 || 8.513 || 0.3
| + | |
− | |-
| + | |
− | | 251 || 4.452 || 4.428 || 791.97 || -8.0 || 8.488 || 0.3
| + | |
− | |-
| + | |
− | | 252 || 4.392 || 4.368 || 796.87 || -8.0 || 8.464 || 0.3
| + | |
− | |-
| + | |
− | | 253 || 4.333 || 4.307 || 801.76 || -8.0 || 8.441 || 0.3
| + | |
− | |-
| + | |
− | | 254 || 4.273 || 4.247 || 806.65 || -8.0 || 8.417 || 0.3
| + | |
− | |-
| + | |
− | | 255 || 4.213 || 4.187 || 811.53 || -8.0 || 8.394 || 0.3
| + | |
− | |-
| + | |
− | | 256 || 4.153 || 4.127 || 816.41 || -8.0 || 8.371 || 0.3
| + | |
− | |-
| + | |
− | | 257 || 4.093 || 4.067 || 821.28 || -8.0 || 8.348 || 0.3
| + | |
− | |-
| + | |
− | | 258 || 4.033 || 4.007 || 826.15 || -8.0 || 8.326 || 0.3
| + | |
− | |-
| + | |
− | | 259 || 3.973 || 3.947 || 831.02 || -8.0 || 8.303 || 0.3
| + | |
− | |-
| + | |
− | | 260 || 3.913 || 3.887 || 835.88 || -8.0 || 8.281 || 0.3
| + | |
− | |-
| + | |
− | | 261 || 3.853 || 3.827 || 840.75 || -8.0 || 8.259 || 0.3
| + | |
− | |-
| + | |
− | | 262 || 3.793 || 3.767 || 845.61 || -8.0 || 8.237 || 0.3
| + | |
− | |-
| + | |
− | | 263 || 3.733 || 3.707 || 850.47 || -8.0 || 8.216 || 0.3
| + | |
− | |-
| + | |
− | | 264 || 3.673 || 3.647 || 855.34 || -8.0 || 8.194 || 0.3
| + | |
− | |-
| + | |
− | | 265 || 3.613 || 3.587 || 860.21 || -8.0 || 8.173 || 0.3
| + | |
− | |-
| + | |
− | | 266 || 3.553 || 3.527 || 865.08 || -8.0 || 8.152 || 0.3
| + | |
− | |-
| + | |
− | | 267 || 3.493 || 3.467 || 869.95 || -8.0 || 8.131 || 0.3
| + | |
− | |-
| + | |
− | | 268 || 3.433 || 3.407 || 874.83 || -8.0 || 8.110 || 0.3
| + | |
− | |-
| + | |
− | | 269 || 3.373 || 3.347 || 879.71 || -8.0 || 8.089 || 0.3
| + | |
− | |-
| + | |
− | | 270 || 3.313 || 3.287 || 884.59 || -8.0 || 8.068 || 0.3
| + | |
− | |-
| + | |
− | | 271 || 3.253 || 3.227 || 889.49 || -8.0 || 8.047 || 0.3
| + | |
− | |-
| + | |
− | | 272 || 3.193 || 3.167 || 894.39 || -8.0 || 8.027 || 0.3
| + | |
− | |-
| + | |
− | | 273 || 3.133 || 3.107 || 899.29 || -8.0 || 8.006 || 0.3
| + | |
− | |-
| + | |
− | | 274 || 3.073 || 3.047 || 904.21 || -8.0 || 7.986 || 0.3
| + | |
− | |}
| + | |
In its standard configuration the fixed-array hodoscope consists of 218 scintillators distributed over 9.1 m behind the focal-plane of the tagger spectrometer. Standard configuration refers to a coherent-peak setting at 9.0 GeV, i.e. the microscope covers the energy range 8.1<Eγ<9.1 GeV.
All counters will be mounted at angles such that they face normal to the path of the scattered electrons.
All light guides (UVT PMMA) have cylindrical shape of 120 mm length and 7/8" = 22.2mm diameter to cover the size of the photocathode. A collar at 60mm height with 2 bolts along the slot line ensure proper positioning of the counters: threaded holes for the bolts in the mounting plates are correspondingly oriented.
Hamamatsu R9800: 1" tube with 8 dynodes, rise time 1.0 ns, transit time 11 ns, 27% quantum eff., max. anode current 100 μA.
magnetic shields: μ-metal cylinders.
HV dividers and 2-stage preamps (amp. factor 8.5x) developed at Jefferson Lab, they allow for limiting the anode current to 15-20 μA at 4 MHz rate.
Operating voltage: U=900 V resulting in a gain of 5×105, anode current contributes to less than 5% of the active base current.