PHYS820/N11 Radiation shielding

PHYS820/N11 Radiation shieldingSome material densities etcH-1 1Ni-28 8.9Mg-12 1.74Cu-29 8.96Pb-82 11.3S.Steel 7.9Al-13 2.7C-6graphite 2.267wood(oak)0.60-0.90si-17 2.3296ge-32 5.32naI 11(1) 53(1) 3.67na-11 0.97bgo 83(4) 32(3) 8(12) 7.13cd-48 8.65he-3 (2atm) 4.925e-5h20 1,1(2) 8,16(1) 1poly c(1)h(2) 0.96csIcdte (48)(19) 5.8569in-49(116) 7.31concreteFe-26 (56) 7.87Cr-24 (52) 7.15Values of a and b for various detectorsDetector a bBGO -0.02726 0.175NaI(Tl) 1.6*e-3 0.073NaI -0.015 0.118Ge 1.856e-3 9.913e-4CsICsI(Tl) 8.72*e-3 0.04579CdTeSome source definitionsCC Source Definition Cs-137Csdef pos=-8 0 0 erg=d1si1 l 31.817e-3 32.194e-3 36.357e-3 37.450e-3 661.660e-3sp1 d 0.0205 0.0377 0.0104 0.00264 0.8521CC Source Definition Co-60Csdef pos=-8 0 0 erg=d1si1 l 1173.237e-3 1332.501e-3

sp1 d 0.5 0.5CC Source Definition Na-22Csdef pos=-8 0 0 erg=d1si1 l 511e-3 1274.53e-3sp1 d 0.65 0.35CC Source Definition Eu-152Csdef pos=-8 0 0 erg=d1si1 l 121.7758e-3 244.6923e-3 295.929e-3 344.286e-3 367.798e-3411.122e-3 443.894e-3 488.615e-3 564.010e-3 586.307e-3678.586e-3 688.675e-3 778.920e-3 867.348e-3 919.390e-3964.110e-3 1005.256e-3 1085.885e-3 1089.706e-31112.075e-3 1212.934e-3 1299.158e-3 1408.002e-3sp1 d 0.284 0.0751 0.0044 0.266 0.00858 0.0223 0.0280 0.004070.00467 0.00461 0.00469 0.00849 0.1298 0.0421 0.004350.145 0.00647 0.0994 0.0171 0.136 0.014 0.0163 0.208CC Source Definition Eu-152 (including x-rays)Csdef pos=-8 0 0 erg=d1si1 l 39.522e-3 40.118e-3 45.379e-3 46.819e-3121.7758e-3 244.6923e-3 295.929e-3 344.286e-3 367.798e-3411.122e-3 443.894e-3 488.615e-3 564.010e-3 586.307e-3678.586e-3 688.675e-3 778.920e-3 867.348e-3 919.390e-3964.110e-3 1005.256e-3 1085.885e-3 1089.706e-31112.075e-3 1212.934e-3 1299.158e-3 1408.002e-3sp1 d 0.212 0.384 0.111 .0330.284 0.0751 0.0044 0.266 0.00858 0.0223 0.0280 0.004070.00467 0.00461 0.00469 0.00849 0.1298 0.0421 0.004350.145 0.00647 0.0994 0.0171 0.136 0.014 0.0163 0.208CC Source Definition Am-241Csdef pos=-8 0 0 erg=d1si1 l 13.927e-3 17.611e-3 20.997e-3 26.3445e-3 59.5364e-3sp1 d 0.13 0.202 0.052 0.024 0.357CC Source Definition Co-57Csdef pos=-8 0 0 erg=d1si1 l 14.4e-3 122.1e-3 136.5e-3sp1 d 9.5 85.5 10.7