/*******************************************************************************
*         McStas instrument definition URL=http://www.mcstas.org
*
* Instrument: test (rename also the example and DEFINE lines below)
*
* %Identification
* Written by: Your name (email)
* Date: Current Date
* Origin: Your institution
* Release: McStas CVS-080208
* Version: 0.2
* %INSTRUMENT_SITE: Institution_name_as_a_single word
*
* Instrument short description
*
* %Description
* Instrument longer description (type, elements, usage...)
*
* Example: mcrun test.instr <parameters=values>
*
* %Parameters
* Par1: [unit] Parameter1 description
*
* %Link
* A reference/HTML link for more information
*
* %End
*******************************************************************************/

/* Change name of instrument and input parameters with default values */
DEFINE INSTRUMENT Ex2_2_2(f=5, Theta0=10)


TRACE

/* The Arm() class component defines reference points and orientations  */
/* in 3D space. Every component instance must have a unique name. Here, */
/* Origin is used. This Arm() component is set to define the origin of  */
/* our global coordinate system (AT (0,0,0) ABSOLUTE). It may be used   */
/* for further RELATIVE reference, Other useful keywords are : ROTATED  */
/* EXTEND GROUP PREVIOUS. Also think about adding a neutron source !    */
/* Progress_bar is an Arm displaying simulation progress.               */
COMPONENT Origin = Progress_bar()
  AT (0,0,0) ABSOLUTE


COMPONENT Source = Source_simple(
    radius = 0.12, dist = 1.5, xw = 0.06, yh = 0.06,
    Lambda0 = 5.5, dLambda = 4.5)
  AT (0, 0, 0) RELATIVE Origin
EXTEND %{
  t = rand01();
%}

COMPONENT TOF0 = Monitor_nD(filename = "tof0", xwidth = 0.06, yheight = 0.06, options="t auto bins=200")
  AT (0, 0, 0) RELATIVE Source


COMPONENT Guide = Guide(
    w1 = 0.06, h1 = 0.06, w2 = 0.06, h2 = 0.06, l = 20, m = 3)
  AT (0, 0, 1.5) RELATIVE Source

COMPONENT Chop = DiskChopper(R=0.5, omega=2*PI*f, theta_0=Theta0, phi_0=90, n=2)
  AT (0, 0, 20.0005) RELATIVE Guide

COMPONENT TOF1 = Monitor_nD(filename = "tof1", xwidth = 0.06, yheight = 0.06, options="t auto bins=200")
  AT (0, 0, 20.001) RELATIVE Guide

COMPONENT PSD = PSD_monitor(
    filename = "psd", xwidth = 0.07, yheight = 0.07)
  AT (0, 0, 0.001) RELATIVE PREVIOUS

COMPONENT TX = Monitor_nD(filename = "tof_x", xwidth = 0.06, yheight = 0.06, options="t auto bins=200 x auto bins=200")
  AT (0, 0, 0.001) RELATIVE PREVIOUS

/* This section is executed when the simulation ends (C code). Other    */
/* optional sections are : SAVE                                         */
FINALLY
%{
%}
/* The END token marks the instrument definition end */
END