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/*******************************************************************************
* McStas instrument definition URL=http://mcstas.risoe.dk
*
* Instrument: ILL_H24
*
* %Identification
* Written by: FARHI Emmanuel (farhi@ill.fr)
* Date: April 7, 2004
* Origin:ILL
* %INSTRUMENT_SITE: ILL
*
* The H24 curved thermal guide at the ILL
*
* %Description
* The H24 curved thermal guide at the ILL feeding IN3, IN13, D10 and S42/Orient Express
*
* %Example: m=1 Detector: GuideOut_Phic_I=1.22e+09
*
* %Parameters
* m: [1] m-value of whole guide coating. 0 absorbing, 1 for Ni, 1.2 for Ni58, 2-4 for SM
* lambda: [AA] central wavelength
* dlambda: [AA] wavelength half width. Use e.g. 0.8*lambda for white beam.
* mip: [1] m-value of in-pile guide coating
*
* %End
*******************************************************************************/
DEFINE INSTRUMENT ILL_H24(m=2, lambda=4, dlambda=3.9, mip=0)
/* The DECLARE section allows us to declare variables or small */
/* functions in C syntax. These may be used in the whole instrument. */
DECLARE
%{
/* Thermal (H2x) source parameters */
/* guide coating parameters */
double gR0 = 1;
double gQc = 0.021;
double gAlpha = 4.07;
double gW = 1.0/300.0;
/* gaps and Al windows parameters */
double Al_Thickness = 0.002;
double gGap = 0.001;
/* guide curvatures */
double gRh = -14000; /* clockwise */
/* guide section parameters (total length/number of elements) */
double L_H24_2 =5.5 /6, Rh_H24_2 =0;
double L_H24_3 =9.973/10, Rh_H24_3 =0; /* end: d ~ 15.5 moderator at -5.9 */
double L_H24_4 =6.973/7, Rh_H24_4 =0; /* end: d ~ 22.5 ... */
double L_H24_5 =4.75 /5, Rh_H24_5 =0; /* VTE is at the end of this section */
double L_H24_6 =11.473/12,Rh_H24_6 =0; /* end of H24 MAN spec sheet after 2 elements */
double L_H24_7 =9.473/10, Rh_H24_7 =0; /* end: IN3 */
double L_H24_8 =5.573/6, Rh_H24_8 =0; /* end MAN spec drawing (d ~ 55.3): IN13 */
double L_H24_9 =1.25, Rh_H24_9 =0;
/* capture flux positions from moderator: 21.4 28.4 61.2 */
%}
/* The INITIALIZE section is executed when the simulation starts */
/* (C code). You may use them as component parameter values. */
INITIALIZE
%{
/* Element rotations = Element length / Curvature Radius * RAD2DEG */
if (gRh) {
Rh_H24_2 = L_H24_2 /gRh*RAD2DEG;
Rh_H24_3 = L_H24_3 /gRh*RAD2DEG;
Rh_H24_4 = L_H24_4 /gRh*RAD2DEG;
Rh_H24_5 = L_H24_5 /gRh*RAD2DEG;
Rh_H24_6 = L_H24_6 /gRh*RAD2DEG;
Rh_H24_7 = L_H24_7 /gRh*RAD2DEG;
Rh_H24_8 = L_H24_8 /gRh*RAD2DEG;
}
printf("Instrument: ILL_H24 (H24@ILL thermal guide).\n");
%}
/* Here comes the TRACE section, where the actual */
/* instrument is defined as a sequence of components. */
TRACE
/* Source description */
COMPONENT Origin = Progress_bar(percent=5)
AT (0,0,0) ABSOLUTE
/* H24 Guide description */
COMPONENT Thermal = Source_gen(
yheight = 0.22,
xwidth = 0.14,
dist = 2.38+0.8,
focus_xw = 0.038,
focus_yh = 0.2,
lambda0 = lambda,
dlambda = dlambda,
T1=683.7,I1=0.5874e+13,T2=257.7,I2=2.5099e+13,T3=16.7 ,I3=1.0343e+12,
verbose = 1)
AT (0, 0, 0) RELATIVE Origin
/* L=3.3 m in 2 elements. 'Pink Carter'. starts at about 2.5 m from core center */
COMPONENT PinkCarter = Guide_gravity(
w1=0.038, h1=0.2, w2=0.032, h2=0.2, l=0.8,
R0=gR0, Qc=gQc, alpha=gAlpha, m=mip, W=gW)
AT (0,0,2.38) RELATIVE Thermal
/* core to glass SM elements=3.182 m */
COMPONENT PinkCarterSM = Guide_gravity(
w1=0.038, h1=0.2, w2=0.032, h2=0.2, l=2.5,
R0=gR0, Qc=gQc, alpha=gAlpha, m=mip, W=gW)
AT (0,0,0.8+gGap) RELATIVE PREVIOUS
/* Lead Shutter */
COMPONENT LeadShutter = Guide_gravity(
w1=0.031, h1=0.2, w2=0.031, h2=0.2, l=0.228,
R0=gR0, Qc=gQc, alpha=gAlpha, m=m, W=gW)
AT (0,0,0.8+2.5+gGap) RELATIVE PinkCarter
/* ******************** swiming pool guide ******************** */
/* H24-2: L=5.5 m in 6 elements R horiz=-14000 m */
COMPONENT H24_2 = Arm()
AT (0,0,3.59) RELATIVE PinkCarter
COMPONENT H24_2_In = Al_window(thickness=Al_Thickness)
AT (0,0,0) RELATIVE PREVIOUS
COMPONENT H24_2_1 = Guide_gravity(
w1=0.03, h1=0.2, l=L_H24_2,
R0=gR0, Qc=gQc, alpha=gAlpha, m=m, W=gW)
AT (0,0,Al_Thickness+gGap) RELATIVE PREVIOUS ROTATED (0,Rh_H24_2,0) RELATIVE PREVIOUS
COMPONENT H24_2_2 = COPY(PREVIOUS)
AT (0,0,L_H24_2+gGap) RELATIVE PREVIOUS ROTATED (0,Rh_H24_2,0) RELATIVE PREVIOUS
COMPONENT H24_2_3 = COPY(PREVIOUS)
AT (0,0,L_H24_2+gGap) RELATIVE PREVIOUS ROTATED (0,Rh_H24_2,0) RELATIVE PREVIOUS
COMPONENT H24_2_4 = COPY(PREVIOUS)
AT (0,0,L_H24_2+gGap) RELATIVE PREVIOUS ROTATED (0,Rh_H24_2,0) RELATIVE PREVIOUS
COMPONENT H24_2_5 = COPY(PREVIOUS)
AT (0,0,L_H24_2+gGap) RELATIVE PREVIOUS ROTATED (0,Rh_H24_2,0) RELATIVE PREVIOUS
COMPONENT H24_2_6 = COPY(PREVIOUS)
AT (0,0,L_H24_2+gGap) RELATIVE PREVIOUS ROTATED (0,Rh_H24_2,0) RELATIVE PREVIOUS
COMPONENT H24_2_Out = Al_window(thickness=Al_Thickness)
AT (0,0,L_H24_2+gGap) RELATIVE PREVIOUS
/* gap 0.148 m (VS) */
/* H24-3: L=9.973 m in 10 elements Rh=-14000 m. */
COMPONENT H24_3 = Arm()
AT (0,0,0.148) RELATIVE H24_2_Out
COMPONENT H24_3_In = Al_window(thickness=Al_Thickness)
AT (0,0,0) RELATIVE PREVIOUS
COMPONENT H24_3_1 = Guide_gravity(
w1=0.03, h1=0.2, l=L_H24_3,
R0=gR0, Qc=gQc, alpha=gAlpha, m=m, W=gW)
AT (0,0,Al_Thickness+gGap) RELATIVE PREVIOUS ROTATED (0,Rh_H24_3,0) RELATIVE PREVIOUS
COMPONENT H24_3_2 = COPY(PREVIOUS)
AT (0,0,L_H24_3+gGap) RELATIVE PREVIOUS ROTATED (0,Rh_H24_3,0) RELATIVE PREVIOUS
COMPONENT H24_3_3 = COPY(PREVIOUS)
AT (0,0,L_H24_3+gGap) RELATIVE PREVIOUS ROTATED (0,Rh_H24_3,0) RELATIVE PREVIOUS
COMPONENT H24_3_4 = COPY(PREVIOUS)
AT (0,0,L_H24_3+gGap) RELATIVE PREVIOUS ROTATED (0,Rh_H24_3,0) RELATIVE PREVIOUS
COMPONENT H24_3_5 = COPY(PREVIOUS)
AT (0,0,L_H24_3+gGap) RELATIVE PREVIOUS ROTATED (0,Rh_H24_3,0) RELATIVE PREVIOUS
COMPONENT H24_3_6 = COPY(PREVIOUS)
AT (0,0,L_H24_3+gGap) RELATIVE PREVIOUS ROTATED (0,Rh_H24_3,0) RELATIVE PREVIOUS
COMPONENT H24_3_7 = COPY(PREVIOUS)
AT (0,0,L_H24_3+gGap) RELATIVE PREVIOUS ROTATED (0,Rh_H24_3,0) RELATIVE PREVIOUS
COMPONENT H24_3_8 = COPY(PREVIOUS)
AT (0,0,L_H24_3+gGap) RELATIVE PREVIOUS ROTATED (0,Rh_H24_3,0) RELATIVE PREVIOUS
COMPONENT H24_3_9 = COPY(PREVIOUS)
AT (0,0,L_H24_3+gGap) RELATIVE PREVIOUS ROTATED (0,Rh_H24_3,0) RELATIVE PREVIOUS
COMPONENT H24_3_10 = COPY(PREVIOUS)
AT (0,0,L_H24_3+gGap) RELATIVE PREVIOUS ROTATED (0,Rh_H24_3,0) RELATIVE PREVIOUS
COMPONENT H24_3_Out = Al_window(thickness=Al_Thickness)
AT (0,0,L_H24_3+gGap) RELATIVE PREVIOUS
/* gap 0.03 m */
/* H24-4: L=6.973 m in 7 elements Rh=-14000 m. Here d_c ~ 21.4 */
COMPONENT H24_4 = Arm()
AT (0,0,0.03) RELATIVE H24_3_Out
COMPONENT H24_4_In = Al_window(thickness=Al_Thickness)
AT (0,0,0) RELATIVE PREVIOUS
COMPONENT H24_4_1 = Guide_gravity(
w1=0.03, h1=0.2, l=L_H24_4,
R0=gR0, Qc=gQc, alpha=gAlpha, m=m, W=gW)
AT (0,0,Al_Thickness+gGap) RELATIVE PREVIOUS ROTATED (0,Rh_H24_4,0) RELATIVE PREVIOUS
COMPONENT H24_4_2 = COPY(PREVIOUS)
AT (0,0,L_H24_4+gGap) RELATIVE PREVIOUS ROTATED (0,Rh_H24_4,0) RELATIVE PREVIOUS
COMPONENT H24_4_3 = COPY(PREVIOUS)
AT (0,0,L_H24_4+gGap) RELATIVE PREVIOUS ROTATED (0,Rh_H24_4,0) RELATIVE PREVIOUS
COMPONENT H24_4_4 = COPY(PREVIOUS)
AT (0,0,L_H24_4+gGap) RELATIVE PREVIOUS ROTATED (0,Rh_H24_4,0) RELATIVE PREVIOUS
COMPONENT H24_4_5 = COPY(PREVIOUS)
AT (0,0,L_H24_4+gGap) RELATIVE PREVIOUS ROTATED (0,Rh_H24_4,0) RELATIVE PREVIOUS
COMPONENT H24_4_6 = COPY(PREVIOUS)
AT (0,0,L_H24_4+gGap) RELATIVE PREVIOUS ROTATED (0,Rh_H24_4,0) RELATIVE PREVIOUS
COMPONENT H24_4_7 = COPY(PREVIOUS)
AT (0,0,L_H24_4+gGap) RELATIVE PREVIOUS ROTATED (0,Rh_H24_4,0) RELATIVE PREVIOUS
COMPONENT H24_4_Out = Al_window(thickness=Al_Thickness)
AT (0,0,L_H24_4+gGap) RELATIVE PREVIOUS
/* gap 0.03 m */
/* H24-5: L=4.75 m in 5 elements Rh=-14000 m. Here d_c ~ 28.4 */
COMPONENT H24_5 = Arm()
AT (0,0,0.03) RELATIVE H24_4_Out
COMPONENT H24_5_In = Al_window(thickness=Al_Thickness)
AT (0,0,0) RELATIVE PREVIOUS
COMPONENT H24_5_1 = Guide_gravity(
w1=0.03, h1=0.2, l=L_H24_5,
R0=gR0, Qc=gQc, alpha=gAlpha, m=m, W=gW)
AT (0,0,Al_Thickness+gGap) RELATIVE PREVIOUS ROTATED (0,Rh_H24_5,0) RELATIVE PREVIOUS
COMPONENT H24_5_2 = COPY(PREVIOUS)
AT (0,0,L_H24_5+gGap) RELATIVE PREVIOUS ROTATED (0,Rh_H24_5,0) RELATIVE PREVIOUS
COMPONENT H24_5_3 = COPY(PREVIOUS)
AT (0,0,L_H24_5+gGap) RELATIVE PREVIOUS ROTATED (0,Rh_H24_5,0) RELATIVE PREVIOUS
COMPONENT H24_5_4 = COPY(PREVIOUS)
AT (0,0,L_H24_5+gGap) RELATIVE PREVIOUS ROTATED (0,Rh_H24_5,0) RELATIVE PREVIOUS
COMPONENT H24_5_5 = COPY(PREVIOUS)
AT (0,0,L_H24_5+gGap) RELATIVE PREVIOUS ROTATED (0,Rh_H24_5,0) RELATIVE PREVIOUS
COMPONENT H24_5_Out = Al_window(thickness=Al_Thickness)
AT (0,0,L_H24_5+gGap) RELATIVE PREVIOUS
/* gap .330 m (VTE) */
/* ******************** after the VTE ******************** */
/* H24-6: L=11.473 m in 12 elements Rh=-14000 m */
COMPONENT H24_6 = Arm()
AT (0,0,0.330) RELATIVE H24_5_Out
COMPONENT H24_6_In = Al_window(thickness=Al_Thickness)
AT (0,0,0) RELATIVE PREVIOUS
COMPONENT H24_6_1 = Guide_gravity(
w1=0.03, h1=0.2, l=L_H24_6,
R0=gR0, Qc=gQc, alpha=gAlpha, m=m, W=gW)
AT (0,0,Al_Thickness+gGap) RELATIVE PREVIOUS ROTATED (0,Rh_H24_6,0) RELATIVE PREVIOUS
COMPONENT H24_6_2 = COPY(PREVIOUS)
AT (0,0,L_H24_6+gGap) RELATIVE PREVIOUS ROTATED (0,Rh_H24_6,0) RELATIVE PREVIOUS
COMPONENT H24_6_3 = COPY(PREVIOUS)
AT (0,0,L_H24_6+gGap) RELATIVE PREVIOUS ROTATED (0,Rh_H24_6,0) RELATIVE PREVIOUS
COMPONENT H24_6_4 = COPY(PREVIOUS)
AT (0,0,L_H24_6+gGap) RELATIVE PREVIOUS ROTATED (0,Rh_H24_6,0) RELATIVE PREVIOUS
COMPONENT H24_6_5 = COPY(PREVIOUS)
AT (0,0,L_H24_6+gGap) RELATIVE PREVIOUS ROTATED (0,Rh_H24_6,0) RELATIVE PREVIOUS
COMPONENT H24_6_6 = COPY(PREVIOUS)
AT (0,0,L_H24_6+gGap) RELATIVE PREVIOUS ROTATED (0,Rh_H24_6,0) RELATIVE PREVIOUS
COMPONENT H24_6_7 = COPY(PREVIOUS)
AT (0,0,L_H24_6+gGap) RELATIVE PREVIOUS ROTATED (0,Rh_H24_6,0) RELATIVE PREVIOUS
COMPONENT H24_6_8 = COPY(PREVIOUS)
AT (0,0,L_H24_6+gGap) RELATIVE PREVIOUS ROTATED (0,Rh_H24_6,0) RELATIVE PREVIOUS
COMPONENT H24_6_9 = COPY(PREVIOUS)
AT (0,0,L_H24_6+gGap) RELATIVE PREVIOUS ROTATED (0,Rh_H24_6,0) RELATIVE PREVIOUS
COMPONENT H24_6_10 = COPY(PREVIOUS)
AT (0,0,L_H24_6+gGap) RELATIVE PREVIOUS ROTATED (0,Rh_H24_6,0) RELATIVE PREVIOUS
COMPONENT H24_6_11 = COPY(PREVIOUS)
AT (0,0,L_H24_6+gGap) RELATIVE PREVIOUS ROTATED (0,Rh_H24_6,0) RELATIVE PREVIOUS
COMPONENT H24_6_12 = COPY(PREVIOUS)
AT (0,0,L_H24_6+gGap) RELATIVE PREVIOUS ROTATED (0,Rh_H24_6,0) RELATIVE PREVIOUS
COMPONENT H24_6_Out = Al_window(thickness=Al_Thickness)
AT (0,0,L_H24_6+gGap) RELATIVE PREVIOUS
/* gap 0.03 m */
/* H24-7: L=9.973 m in 10 elements Rh=-14000 m Here IN3 */
COMPONENT H24_7 = Arm()
AT (0,0,0.03) RELATIVE H24_6_Out
COMPONENT H24_7_In = Al_window(thickness=Al_Thickness)
AT (0,0,0) RELATIVE PREVIOUS
COMPONENT H24_7_1 = Guide_gravity(
w1=0.03, h1=0.2, l=L_H24_7,
R0=gR0, Qc=gQc, alpha=gAlpha, m=m, W=gW)
AT (0,0,Al_Thickness+gGap) RELATIVE PREVIOUS ROTATED (0,Rh_H24_7,0) RELATIVE PREVIOUS
COMPONENT H24_7_2 = COPY(PREVIOUS)
AT (0,0,L_H24_7+gGap) RELATIVE PREVIOUS ROTATED (0,Rh_H24_7,0) RELATIVE PREVIOUS
COMPONENT H24_7_3 = COPY(PREVIOUS)
AT (0,0,L_H24_7+gGap) RELATIVE PREVIOUS ROTATED (0,Rh_H24_7,0) RELATIVE PREVIOUS
COMPONENT H24_7_4 = COPY(PREVIOUS)
AT (0,0,L_H24_7+gGap) RELATIVE PREVIOUS ROTATED (0,Rh_H24_7,0) RELATIVE PREVIOUS
COMPONENT H24_7_5 = COPY(PREVIOUS)
AT (0,0,L_H24_7+gGap) RELATIVE PREVIOUS ROTATED (0,Rh_H24_7,0) RELATIVE PREVIOUS
COMPONENT H24_7_6 = COPY(PREVIOUS)
AT (0,0,L_H24_7+gGap) RELATIVE PREVIOUS ROTATED (0,Rh_H24_7,0) RELATIVE PREVIOUS
COMPONENT H24_7_7 = COPY(PREVIOUS)
AT (0,0,L_H24_7+gGap) RELATIVE PREVIOUS ROTATED (0,Rh_H24_7,0) RELATIVE PREVIOUS
COMPONENT H24_7_8 = COPY(PREVIOUS)
AT (0,0,L_H24_7+gGap) RELATIVE PREVIOUS ROTATED (0,Rh_H24_7,0) RELATIVE PREVIOUS
COMPONENT H24_7_9 = COPY(PREVIOUS)
AT (0,0,L_H24_7+gGap) RELATIVE PREVIOUS ROTATED (0,Rh_H24_7,0) RELATIVE PREVIOUS
COMPONENT H24_7_10 = COPY(PREVIOUS)
AT (0,0,L_H24_7+gGap) RELATIVE PREVIOUS ROTATED (0,Rh_H24_7,0) RELATIVE PREVIOUS
COMPONENT H24_7_Out = Al_window(thickness=Al_Thickness)
AT (0,0,L_H24_7+gGap) RELATIVE PREVIOUS
/* gap 0.3 m */
/* H24-7: L=5.573 m in 6 elements Rh=-14000 m. Here IN13 position. */
COMPONENT H24_8 = Arm()
AT (0,0,0.3) RELATIVE H24_7_Out
COMPONENT H24_8_In = Al_window(thickness=Al_Thickness)
AT (0,0,0) RELATIVE PREVIOUS
COMPONENT H24_8_1 = Guide_gravity(
w1=0.03, h1=0.2, l=L_H24_8,
R0=gR0, Qc=gQc, alpha=gAlpha, m=m, W=gW)
AT (0,0,Al_Thickness+gGap) RELATIVE PREVIOUS ROTATED (0,Rh_H24_8,0) RELATIVE PREVIOUS
COMPONENT H24_8_2 = COPY(PREVIOUS)
AT (0,0,L_H24_8+gGap) RELATIVE PREVIOUS ROTATED (0,Rh_H24_8,0) RELATIVE PREVIOUS
COMPONENT H24_8_3 = COPY(PREVIOUS)
AT (0,0,L_H24_8+gGap) RELATIVE PREVIOUS ROTATED (0,Rh_H24_8,0) RELATIVE PREVIOUS
COMPONENT H24_8_4 = COPY(PREVIOUS)
AT (0,0,L_H24_8+gGap) RELATIVE PREVIOUS ROTATED (0,Rh_H24_8,0) RELATIVE PREVIOUS
COMPONENT H24_8_5 = COPY(PREVIOUS)
AT (0,0,L_H24_8+gGap) RELATIVE PREVIOUS ROTATED (0,Rh_H24_8,0) RELATIVE PREVIOUS
COMPONENT H24_8_6 = COPY(PREVIOUS)
AT (0,0,L_H24_8+gGap) RELATIVE PREVIOUS ROTATED (0,Rh_H24_8,0) RELATIVE PREVIOUS
COMPONENT H24_8_Out = Al_window(thickness=Al_Thickness)
AT (0,0,L_H24_8+gGap) RELATIVE PREVIOUS
/* gap 0.3 m Here S42/Orient Express*/
COMPONENT GuideOut = Arm() AT (0,0,0.01) RELATIVE PREVIOUS
COMPONENT GuideOut_xy = Monitor_nD(
xwidth=0.03, yheight=0.2, restore_neutron=1,
options="x y, per cm2, slit")
AT (0,0,0.01) RELATIVE PREVIOUS
COMPONENT GuideOut_dxdy = Monitor_nD(
xwidth=0.03, yheight=0.2, restore_neutron=1,
options="dx dy, all auto, per cm2, slit")
AT (0,0,0) RELATIVE PREVIOUS
COMPONENT GuideOut_Phic = Monitor_nD(
xwidth=0.03, yheight=0.2, restore_neutron=1,
options="per cm2, capture, slit")
AT (0,0,0) RELATIVE PREVIOUS
COMPONENT GuideOut_L = Monitor_nD(
xwidth=0.03, yheight=0.2, restore_neutron=1,
options="lambda, limits=[1 21] bins=20, per cm2, slit")
AT (0,0,0) RELATIVE PREVIOUS
/* The END token marks the instrument definition end */
END
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