source: trunk/examples/advanced/underground_physics/src/DMXDetectorMaterial.icc @ 1304

Last change on this file since 1304 was 807, checked in by garnier, 16 years ago

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27// GEANT4 tag $Name:
28//
29// Author: Alex Howard (alexander.howard@cern.ch)
30//
31// History:
32// -----------
33//
34// 23rd November 2002 Modified GXe and LXe material tables to include new
35//                    scintillation method - Alex Howard
36//
37  G4double density,      // density
38    a,                   // atomic mass
39    z;                   // atomic number
40  G4String name,         // name
41    symbol;              // symbol
42  G4int ncomponents,     // n components
43    iz,                  // number of protons
44    in;                  // number of nuceons
45  G4double abundance,    // abundance
46    temperature,         // temperature
47    pressure;            // pressure
48
49
50  // making vacuum
51  G4Material* vacuum = new G4Material
52    (name="Vacuum", z=1., a=1.*g/mole, density=1.e-20*g/cm3,
53     kStateGas, temperature=0.1*kelvin, pressure=1.e-20*bar);
54
55
56  // xenons
57  G4Element* elementXe = new G4Element( "Xenon", "Xe", 54., 131.29*g/mole );
58  G4Material* LXe = new G4Material
59     ("LXe", 3.02*g/cm3, 1, kStateLiquid, 173.15*kelvin, 1.5*atmosphere );
60  G4Material* GXe = new G4Material
61     ("GXe", 0.005887*g/cm3, 1, kStateGas, 173.15*kelvin, 1.5*atmosphere );
62  LXe->AddElement( elementXe, 1);
63  GXe->AddElement( elementXe, 1);
64
65  const G4int NUMENTRIES = 3;
66  //  G4double LXe_PP[NUMENTRIES]    = { 7.07*eV, 7.07*eV };
67  G4double LXe_PP[NUMENTRIES]    = { 7.0*eV , 7.07*eV, 7.14*eV };
68  G4double LXe_SCINT[NUMENTRIES] = { 0.1, 1.0, 0.1 };
69  G4double LXe_RIND[NUMENTRIES]  = { 1.59 , 1.57, 1.54 };
70  G4double LXe_ABSL[NUMENTRIES]  = { 35.*cm, 35.*cm, 35.*cm}; //atten length
71  G4MaterialPropertiesTable *LXe_mt = new G4MaterialPropertiesTable();
72  LXe_mt->AddProperty("FASTCOMPONENT", LXe_PP, LXe_SCINT, NUMENTRIES);
73  LXe_mt->AddProperty("SLOWCOMPONENT", LXe_PP, LXe_SCINT, NUMENTRIES);
74  LXe_mt->AddProperty("RINDEX",        LXe_PP, LXe_RIND,  NUMENTRIES);
75  LXe_mt->AddProperty("ABSLENGTH",     LXe_PP, LXe_ABSL,  NUMENTRIES);
76  LXe_mt->AddConstProperty("SCINTILLATIONYIELD",12000./MeV); // include QE 20%
77  // and 13eV creation energy for photons - may be 15eV?
78  // Fano factor assumed 1; should be much less for Xe ~ 0.13
79  // but the Fano factor is already partially included in the correlated
80  // electron production - therefore not the absolute Fano factor here:
81  LXe_mt->AddConstProperty("RESOLUTIONSCALE",1.0);
82  LXe_mt->AddConstProperty("FASTTIMECONSTANT",20.*ns);
83  LXe_mt->AddConstProperty("SLOWTIMECONSTANT",45.*ns);
84  LXe_mt->AddConstProperty("YIELDRATIO",1.0);
85  LXe->SetMaterialPropertiesTable(LXe_mt);
86
87  //  G4double GXe_PP[NUMENTRIES]    = { 7.07*eV, 7.07*eV };
88  G4double GXe_PP[NUMENTRIES]    = { 7.0*eV, 7.07*eV, 7.14*eV };
89  G4double GXe_SCINT[NUMENTRIES] = { 0.1, 1.0, 0.1 };
90  G4double GXe_RIND[NUMENTRIES]  = { 1.00, 1.00, 1.00 };
91  G4double GXe_ABSL[NUMENTRIES]  = { 100*m, 100*m, 100*m}; //atten length
92  G4MaterialPropertiesTable *GXe_mt = new G4MaterialPropertiesTable();
93  GXe_mt->AddProperty("FASTCOMPONENT", GXe_PP, GXe_SCINT, NUMENTRIES);
94  GXe_mt->AddProperty("SLOWCOMPONENT", GXe_PP, GXe_SCINT, NUMENTRIES);
95  GXe_mt->AddProperty("RINDEX",        GXe_PP, GXe_RIND,  NUMENTRIES);
96  GXe_mt->AddProperty("ABSLENGTH",     GXe_PP, GXe_ABSL,  NUMENTRIES);
97  GXe_mt->AddConstProperty("SCINTILLATIONYIELD",12000./MeV); // include QE 20%
98  GXe_mt->AddConstProperty("RESOLUTIONSCALE",1.0);
99  GXe_mt->AddConstProperty("FASTTIMECONSTANT",20.*ns);
100  GXe_mt->AddConstProperty("SLOWTIMECONSTANT",45.*ns);
101  GXe_mt->AddConstProperty("YIELDRATIO",1.0);
102  GXe->SetMaterialPropertiesTable(GXe_mt);
103
104
105  // making quartz
106  G4Element* O  = new G4Element
107    (name="Oxygen"  ,symbol="O" , z= 8., a=16.00*g/mole);
108  G4Element* Si = new G4Element
109    (name="Silicon",symbol="Si" , z= 14., a=28.09*g/mole);
110  G4Material* quartz = new G4Material
111    (name="quartz", density=2.200*g/cm3, ncomponents=2);
112  quartz->AddElement(Si, 1);
113  quartz->AddElement(O , 2);
114
115  G4double quartz_PP[NUMENTRIES]   = { 5.0*eV, 6.69*eV, 7.50*eV }; // lambda range 4 ri
116  G4double quartz_RIND[NUMENTRIES] = { 1.51, 1.57, 1.61 };     // ref index
117  //  G4double quartz_RIND[NUMENTRIES] = { 1.45, 1.51, 1.54 };     // ref index
118  G4double quartz_ABSL[NUMENTRIES] = { 3.0*cm, 3.0*cm, 3.0*cm };// atten length
119  G4MaterialPropertiesTable *quartz_mt = new G4MaterialPropertiesTable();
120  quartz_mt->AddProperty("RINDEX", quartz_PP, quartz_RIND, NUMENTRIES);
121  quartz_mt->AddProperty("ABSLENGTH", quartz_PP, quartz_ABSL, NUMENTRIES);
122  quartz->SetMaterialPropertiesTable(quartz_mt);
123
124
125  // aluminium
126  G4Element* Al = new G4Element
127    (name="Aluminium"  ,symbol="Al" , z= 13., a=26.98*g/mole); 
128  G4Material* metalAl = new G4Material
129    (name="MetalAluminium", density=2.700*g/cm3, ncomponents=1);
130  metalAl->AddElement(Al, 1);
131
132
133  // photocathode aluminium
134  G4Material* cathmetalAl = new G4Material
135    (name="CathodeMetalAluminium", density=2.700*g/cm3, ncomponents=1);
136  cathmetalAl->AddElement(Al, 1);
137
138  G4double cathmetal_PP[NUMENTRIES]   = { 5.0*eV, 6.69*eV, 7.50*eV };
139  G4double cathmetal_RIND[NUMENTRIES] = { 1.51, 1.57, 1.61 };     // ref index
140  G4double cathmetal_ABSL[NUMENTRIES] = { 1.e-20*m,  1.e-20*m,  1.e-20*m };// atten length
141//  G4double cathmetal_ABSL[NUMENTRIES] = { 3.0*cm, 3.0*cm, 3.0*cm };// atten length
142  G4MaterialPropertiesTable *cathmetal_mt = new G4MaterialPropertiesTable();
143  cathmetal_mt->AddProperty("RINDEX", cathmetal_PP, cathmetal_RIND,NUMENTRIES);
144  cathmetal_mt->AddProperty("ABSLENGTH", cathmetal_PP, cathmetal_ABSL, NUMENTRIES);
145  cathmetalAl->SetMaterialPropertiesTable(cathmetal_mt);
146
147
148  // iron
149  G4Element* Fe = new G4Element
150    (name="Iron"  ,symbol="Fe" , z= 26., a=55.85*g/mole); 
151  G4Material* metalFe = new G4Material
152    (name="MetalIron", density=7.874*g/cm3, ncomponents=1);
153  metalFe->AddElement(Fe, 1);
154
155
156  // stainless steel
157  G4Element* C  = new G4Element( "Carbon", "C",   6. , 12.011*g/mole);
158  G4Element* Co = new G4Element( "Cobalt", "Co", 27. , 58.9332*g/mole);
159  G4Material* ssteel = new G4Material
160    (name="Steel", density=7.7*g/cm3, ncomponents=3);
161  ssteel->AddElement(C, 0.04);
162  ssteel->AddElement(Fe, 0.88);
163  ssteel->AddElement(Co, 0.08);
164
165
166  // copper
167  G4Element* Cu = new G4Element
168    (name="Copper"  ,symbol="Cu" , z= 29., a=63.55*g/mole); 
169  G4Material* metalCu = new G4Material
170    (name="MetalCopper", density=8.960*g/cm3, ncomponents=1);
171  metalCu->AddElement(Cu, 1);
172
173  // lead
174  G4Element* Pb = new G4Element
175    (name="Lead",symbol="Pb" , z= 82., a=207.2*g/mole);
176  G4Material* metalPb = new G4Material
177    (name="MetalLead", density=11.340*g/cm3, ncomponents=1);
178  metalPb->AddElement(Pb, 1);
179
180
181/*
182  // Americium: - NOTE it's AmO2..........
183  G4Isotope* Am241 = new G4Isotope
184    (name="Americium241", iz= 95, in=241, a=241.0*g/mole);
185  G4Element* Am = new G4Element
186    (name="Americium241", "Am", ncomponents=1);
187  Am->AddIsotope(Am241, abundance=1);
188  G4Material* sourceAm = new G4Material
189    (name="AmericiumSource", density=13.61*g/cm3, ncomponents=2);
190  sourceAm->AddElement(Am, 1);
191  sourceAm->AddElement(O , 2);
192*/
193
194  // using Uranium because Americium not yet defined for RDM
195  G4Isotope* U235 = new G4Isotope
196    (name="Uranium235", iz= 92, in=235, a=235.0*g/mole);
197  G4Element* U = new G4Element
198    (name="Uranium", "U", ncomponents=1);
199  U->AddIsotope(U235, abundance=1);
200  G4Material* sourceAm = new G4Material
201    (name="UraniumSource", density=13.61*g/cm3, ncomponents=1);
202  sourceAm->AddElement(U, 1);
203
204  // air
205  G4Element* N = new G4Element
206    (name="Nitrogen",symbol="N" , z= 7., a=14.00674*g/mole);
207  G4Material* Air = new G4Material
208    ("AIR", 1.2929*kg/m3, 2, kStateGas, 300.00*kelvin, 1.0*atmosphere);
209  Air->AddElement(N, 0.8);
210  Air->AddElement(O , 0.2);
211
212  // liquid nitrogen:
213  G4Material* LN2 = new G4Material
214    ("LN2", 0.8*g/cm3, 1, kStateLiquid, 77.*kelvin, 1.0*atmosphere);
215  LN2->AddElement(N, 1);
216
217  //concrete
218  G4Element* H = new G4Element
219    (name="Hydrogen",symbol="H" , z= 1., a=1.00794*g/mole);
220  G4Element* Ca = new G4Element
221    (name="Calcium",symbol="Ca" , z= 20., a=40.078*g/mole);
222  G4Material* concrete = new G4Material
223    (name="Concrete", density=2.3*g/cm3, ncomponents=6);
224  concrete->AddElement(Si, 0.227915);
225  concrete->AddElement(O, 0.60541);
226  concrete->AddElement(H, 0.09972);
227  concrete->AddElement(Ca, 0.04986);
228  concrete->AddElement(Al, 0.014245);
229  concrete->AddElement(Fe, 0.00285);
230
231
232  //water
233  G4Material* water = new G4Material
234    (name="water", density=1.00*g/cm3, ncomponents=2);
235  water->AddElement(H , 2);
236  water->AddElement(O , 1);
237
238
239  // wood
240  G4Material* wood = new G4Material
241    (name="wood", density=0.9*g/cm3, ncomponents=3);
242  wood->AddElement(H , 4);
243  wood->AddElement(O , 1);
244  wood->AddElement(C , 2);
245 
246  // print materials
247  //  G4cout << *(G4Material::GetMaterialTable()) << G4endl;
248  //  G4cout << *(G4Isotope::GetIsotopeTable())   << G4endl;
249  //  G4cout << *(G4Element::GetElementTable())   << G4endl;
250
251  // assign materials
252       world_mat = concrete;
253         lab_mat = Air;
254    cupboard_mat = wood;
255       glass_mat = quartz;
256       panel_mat = metalAl;
257        door_mat = wood;
258        desk_mat = wood;
259       crate_mat = metalAl;
260   LN2jacket_mat = ssteel;
261         LN2_mat = LN2;
262      jacket_mat = ssteel;
263jacketflange_mat = ssteel;
264      vacuum_mat = vacuum;
265      copper_mat = metalCu;
266      vessel_mat = ssteel;
267//         GXe_mat = GXe;
268         GXe_mat = LXe;
269    CuShield_mat = metalCu;
270         LXe_mat = LXe;
271       alpha_mat = metalPb;
272   americium_mat = sourceAm;
273        ring_mat = ssteel;
274      mirror_mat = metalAl;
275        grid_mat = LXe;
276         pmt_mat = quartz;
277      phcath_mat = cathmetalAl;
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