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ANTARES Namespace Reference

Name space for Antares. More...

Functions

void setClock ()
 Set clock. More...
 
double getAmbientPressure ()
 Get ambient pressure. More...
 
const double getPhotocathodeArea ()
 Photo-cathode area 10 inch PMT. More...
 
double getAbsorptionLength (const double lambda)
 Absoption length. More...
 
double getScatteringLength (const double lambda)
 Scattering length. More...
 
double henyey_greenstein (const double g, const double x)
 Auxiliary method to describe light scattering in water (Heneyey-Greenstein) More...
 
double henyey_greenstein (const double x)
 Auxiliary method to describe light scattering in water (Heneyey-Greenstein) More...
 
double rayleigh (const double a, const double x)
 Auxiliary method to describe light scattering in water (Rayleigh) More...
 
double rayleigh (const double x)
 Auxiliary method to describe light scattering in water (Rayleigh) More...
 
double f4 (const double x)
 Model specific function to describe light scattering in water (f4) More...
 
double p00075 (const double x)
 Model specific function to describe light scattering in water (p00075) More...
 
double getScatteringProbability (const double x)
 Function to describe light scattering in water. More...
 
double genova (const double x)
 Angular acceptence of Antares PMT (Genova) More...
 
double gamelle (const double x)
 Angular acceptence of Antares PMT (Gamelle) More...
 
double getAngularAcceptance (const double x)
 Angular acceptence of Antares PMT. More...
 
double getQE (const double lambda, const bool option)
 Quantum efficiency of 10-inch Hamamatsu PMT. More...
 
double getQE (const double lambda)
 Quantum efficiency of 10-inch Hamamatsu PMT. More...
 
double getPhotocathodeArea2D (const double x, const double lambda)
 Photo-cathode area 10 inch PMT. More...
 

Detailed Description

Name space for Antares.

Function Documentation

void ANTARES::setClock ( )
inline

Set clock.

Definition at line 297 of file JDAQClock.hh.

298  {
299  KM3NETDAQ::JDAQClock clock(KM3NETDAQ::JDAQClock::ANTARES);
300  }
KM3NETDAQ::JDAQClock
Auxiliary class to set DAQ system clock parameters.
Definition: JDAQClock.hh:27
double ANTARES::getAmbientPressure ( )
inline

Get ambient pressure.

Returns
pressure [Atm]

Definition at line 30 of file Antares.hh.

31  {
32  return 240.0; // ambient pressure [Atm]
33  }
const double ANTARES::getPhotocathodeArea ( )
inline

Photo-cathode area 10 inch PMT.

Returns
photo-cathode area [m^2]

Definition at line 41 of file Antares.hh.

42  {
43  return 440e-4; // photo-cathode area [m^2]
44  }
double ANTARES::getAbsorptionLength ( const double  lambda)
inline

Absoption length.

Parameters
lambdawavelength of light [nm]
Returns
absorption length [m]

values taken from:

afs/in2p3.fr/home/throng/antares/src/km3/v3r6/src/hit-ini_optic.f

Definition at line 53 of file Antares.hh.

54  {
55  typedef std::map<double, double> map_t;
56 
57  static map_t zmap;
58 
59  if (zmap.empty()) {
60  /**
61  * values taken from:
62  *
63  * afs/in2p3.fr/home/throng/antares/src/km3/v3r6/src/hit-ini_optic.f
64  */
65  //static const double a0 = 0.971;
66  static const double a0 = 1.0;
67 
68  zmap[620.0] = 0.0;
69  zmap[610.0] = a0/0.2890;
70  zmap[600.0] = a0/0.2440;
71  zmap[590.0] = a0/0.1570;
72  zmap[580.0] = a0/0.1080;
73  zmap[570.0] = a0/0.0799;
74  zmap[560.0] = a0/0.0708;
75  zmap[550.0] = a0/0.0638;
76  zmap[540.0] = a0/0.0558;
77  zmap[530.0] = a0/0.0507;
78  zmap[520.0] = a0/0.0477;
79  zmap[510.0] = a0/0.0357;
80  zmap[500.0] = a0/0.0257;
81  zmap[490.0] = a0/0.0196;
82  zmap[480.0] = a0/0.0182;
83  zmap[470.0] = a0/0.0182;
84  zmap[460.0] = a0/0.0191;
85  zmap[450.0] = a0/0.0200;
86  zmap[440.0] = a0/0.0218;
87  zmap[430.0] = a0/0.0237;
88  zmap[420.0] = a0/0.0255;
89  zmap[410.0] = a0/0.0291;
90  zmap[400.0] = a0/0.0325;
91  zmap[390.0] = a0/0.0363;
92  zmap[380.0] = a0/0.0415;
93  zmap[370.0] = a0/0.0473;
94  zmap[360.0] = a0/0.0528;
95  zmap[350.0] = a0/0.0629;
96  zmap[340.0] = a0/0.0710;
97  zmap[330.0] = a0/0.0792;
98  zmap[320.0] = a0/0.0946;
99  zmap[310.0] = a0/0.1090;
100  zmap[300.0] = a0/0.1390;
101  zmap[290.0] = 0.0;
102  }
103 
104  const double x = lambda;
105 
106  if (x > zmap.begin()->first && x < zmap.rbegin()->first) {
107 
108  map_t::const_iterator i = zmap.lower_bound(x);
109  map_t::const_iterator j = i;
110 
111  --j;
112 
113  if (i == zmap.begin()) {
114  ++i;
115  ++j;
116  }
117 
118  const double x1 = i->first;
119  const double x2 = j->first;
120 
121  const double y1 = i->second;
122  const double y2 = j->second;
123 
124  return y1 + (y2 - y1) * (x - x1) / (x2 - x1);
125 
126  } else
127 
128  return 0.0;
129  }
double ANTARES::getScatteringLength ( const double  lambda)
inline

Scattering length.

Parameters
lambdawavelength of light [nm]
Returns
absorption length [m]

Definition at line 138 of file Antares.hh.

139  {
140  typedef std::map<double, double> map_t;
141 
142  static map_t zmap;
143 
144  if (zmap.empty()) {
145 
146  zmap[200.0] = 0.0;
147  zmap[307.0] = 19.7132;
148  zmap[330.0] = 23.8280;
149  zmap[350.0] = 27.6075;
150  zmap[370.0] = 31.5448;
151  zmap[390.0] = 35.6151;
152  zmap[410.0] = 39.7971;
153  zmap[430.0] = 44.0726;
154  zmap[450.0] = 48.4261;
155  zmap[470.0] = 52.8447;
156  zmap[490.0] = 57.3172;
157  zmap[510.0] = 61.8344;
158  zmap[530.0] = 66.3884;
159  zmap[550.0] = 70.9723;
160  zmap[570.0] = 75.5804;
161  zmap[590.0] = 80.2077;
162  zmap[610.0] = 84.8497;
163  zmap[650.0] = 95.0;
164  }
165 
166  const double x = lambda;
167 
168  if (x > zmap.begin()->first && x < zmap.rbegin()->first) {
169 
170  map_t::const_iterator i = zmap.lower_bound(x);
171  map_t::const_iterator j = i;
172 
173  --j;
174 
175  if (i == zmap.begin()) {
176  ++i;
177  ++j;
178  }
179 
180  const double x1 = i->first;
181  const double x2 = j->first;
182 
183  const double y1 = i->second;
184  const double y2 = j->second;
185 
186  return y1 + (y2 - y1) * (x - x1) / (x2 - x1);
187 
188  } else
189 
190  return 0.0;
191  }
double ANTARES::henyey_greenstein ( const double  g,
const double  x 
)
inline

Auxiliary method to describe light scattering in water (Heneyey-Greenstein)

Parameters
gangular dependence parameter
xcosine scattering angle
Returns
probability

Definition at line 201 of file Antares.hh.

204  {
205  const double a0 = (1.0 - g*g) / (4*PI);
206  const double y = 1.0 + g*g - 2.0*g*x;
207 
208  return a0 / (y*sqrt(y));
209  }
JTOOLS::PI
static const double PI
Constants.
Definition: JConstants.hh:20
double ANTARES::henyey_greenstein ( const double  x)
inline

Auxiliary method to describe light scattering in water (Heneyey-Greenstein)

Parameters
xcosine scattering angle
Returns
probability

Definition at line 218 of file Antares.hh.

219  {
220  static const double g = 0.924;
221 
222  return henyey_greenstein(g, x);
223  }
henyey_greenstein
double henyey_greenstein(const double ct)
Definition: JDrawLED.cc:28
double ANTARES::rayleigh ( const double  a,
const double  x 
)
inline

Auxiliary method to describe light scattering in water (Rayleigh)

Parameters
aangular dependence parameter
xcosine scattering angle
Returns
probability

Definition at line 233 of file Antares.hh.

236  {
237  const double a0 = 1.0 / (1.0 + a/3.0) / (4*PI);
238 
239  return a0 * (1.0 + a*x*x);
240  }
JTOOLS::PI
static const double PI
Constants.
Definition: JConstants.hh:20
double ANTARES::rayleigh ( const double  x)
inline

Auxiliary method to describe light scattering in water (Rayleigh)

Parameters
xcosine scattering angle
Returns
probability

Definition at line 249 of file Antares.hh.

250  {
251  return rayleigh(0.853, x);
252  }
rayleigh
double rayleigh(const double ct)
Definition: JDrawLED.cc:36
double ANTARES::f4 ( const double  x)
inline

Model specific function to describe light scattering in water (f4)

Parameters
xcosine scattering angle
Returns
probability

Definition at line 261 of file Antares.hh.

262  {
263  static const double g1 = 0.77;
264  static const double g2 = 0.00;
265  static const double f = 1.00;
266 
267  return f * henyey_greenstein(g1,x) + (1.0 - f) * henyey_greenstein(g2,x);
268  }
henyey_greenstein
double henyey_greenstein(const double ct)
Definition: JDrawLED.cc:28
g1
Double_t g1(const Double_t x)
Function.
Definition: JQuantiles.cc:25
double ANTARES::p00075 ( const double  x)
inline

Model specific function to describe light scattering in water (p00075)

Parameters
xcosine scattering angle
Returns
probability

Definition at line 277 of file Antares.hh.

278  {
279  static const double g = 0.924;
280  static const double f = 0.17;
281 
282  return f * rayleigh(x) + (1.0 - f) * henyey_greenstein(g,x);
283  }
rayleigh
double rayleigh(const double ct)
Definition: JDrawLED.cc:36
henyey_greenstein
double henyey_greenstein(const double ct)
Definition: JDrawLED.cc:28
double ANTARES::getScatteringProbability ( const double  x)
inline

Function to describe light scattering in water.

Parameters
xcosine scattering angle
Returns
probability

Definition at line 292 of file Antares.hh.

293  {
294  return p00075(x);
295  }
ANTARES::p00075
double p00075(const double x)
Model specific function to describe light scattering in water (p00075)
Definition: Antares.hh:277
double ANTARES::genova ( const double  x)
inline

Angular acceptence of Antares PMT (Genova)

Parameters
xcosine of angle of incidence
Returns
probability

Definition at line 304 of file Antares.hh.

305  {
306  static const double a0 = 0.3265;
307  static const double a1 = 0.6144;
308  static const double a2 = -0.0343;
309  static const double a3 = -0.0641;
310  static const double a4 = 0.2988;
311  static const double a5 = -0.1422;
312 
313  const double z = -x;
314 
315  double y = 0.0;
316 
317  if (z < -0.65)
318  y = 0.0;
319  else
320  y = a0 + z*(a1 + z*(a2 + z*(a3 + z*(a4 + z*a5))));
321 
322  return y;
323  }
double ANTARES::gamelle ( const double  x)
inline

Angular acceptence of Antares PMT (Gamelle)

Parameters
xcosine angle of incidence
Returns
probability

Definition at line 332 of file Antares.hh.

333  {
334  static const double a0 = 59.115;
335  static const double a1 = 0.52258;
336  static const double a2 = 0.60944E-02;
337  static const double a3 = -0.16955E-03;
338  static const double a4 = 0.60929E-06;
339 
340  double y = 0.0;
341 
342  if (x > +0.36)
343  y = 0.0;
344  else if (x < -1.00)
345  y = 1.0;
346  else {
347 
348  const double z = acos(-x)*57.29578 + 57.75;
349 
350  y = (a0 + z*(a1 + z*(a2 + z*(a3 + z*a4)))) / 84.0;
351  }
352 
353  return y;
354  }
double ANTARES::getAngularAcceptance ( const double  x)
inline

Angular acceptence of Antares PMT.

Parameters
xcosine of angle of incidence
Returns
probability

Definition at line 363 of file Antares.hh.

364  {
365  return genova(x);
366  }
ANTARES::genova
double genova(const double x)
Angular acceptence of Antares PMT (Genova)
Definition: Antares.hh:304
double ANTARES::getQE ( const double  lambda,
const bool  option 
)
inline

Quantum efficiency of 10-inch Hamamatsu PMT.

Parameters
lambdawavelength of photon [nm]
optioninclude absorption in glass and gel (if true, otherwise not)
Returns
quantum efficiency

Definition at line 376 of file Antares.hh.

377  {
378  class tuple {
379  public:
380  tuple(const double __QE,
381  const double __l_gel,
382  const double __l_glass) :
383  QE (__QE),
384  l_gel (__l_gel),
385  l_glass(__l_glass)
386  {}
387 
388  double QE; // Quantum efficiiency
389  double l_gel; // gel absorption length [cm]
390  double l_glass; // glass absorption length [cm]
391  };
392 
393  static const tuple ntuple[] = {
394  tuple(0.000e-2, 0.00, 0.00),
395  tuple(1.988e-2, 100.81, 148.37),
396  tuple(2.714e-2, 99.94, 142.87),
397  tuple(3.496e-2, 99.89, 135.64),
398  tuple(4.347e-2, 96.90, 134.58),
399  tuple(5.166e-2, 96.42, 138.27),
400  tuple(6.004e-2, 94.36, 142.40),
401  tuple(6.885e-2, 89.09, 147.16),
402  tuple(8.105e-2, 90.10, 151.80),
403  tuple(10.13e-2, 86.95, 150.88),
404  tuple(13.03e-2, 85.88, 145.68),
405  tuple(15.29e-2, 84.49, 139.70),
406  tuple(16.37e-2, 81.08, 126.55),
407  tuple(17.11e-2, 78.18, 118.86),
408  tuple(17.86e-2, 76.48, 113.90),
409  tuple(18.95e-2, 74.55, 116.08),
410  tuple(20.22e-2, 72.31, 109.23),
411  tuple(21.26e-2, 68.05, 81.63),
412  tuple(22.10e-2, 66.91, 65.66),
413  tuple(22.65e-2, 64.48, 77.30),
414  tuple(23.07e-2, 62.53, 73.02),
415  tuple(23.14e-2, 59.38, 81.25),
416  tuple(23.34e-2, 56.64, 128.04),
417  tuple(22.95e-2, 53.29, 61.84),
418  tuple(22.95e-2, 48.96, 19.23),
419  tuple(22.74e-2, 45.71, 27.21),
420  tuple(23.48e-2, 41.88, 18.09),
421  tuple(22.59e-2, 37.14, 8.41),
422  tuple(20.61e-2, 30.49, 3.92),
423  tuple(17.68e-2, 23.08, 1.82),
424  tuple(13.18e-2, 15.60, 0.84),
425  tuple(7.443e-2, 8.00, 0.39),
426  tuple(2.526e-2, 0.00, 0.17),
427  tuple(0.000e-2, 0.00, 0.00)
428  };
429 
430  static const double cola = 0.9; // collection efficiency
431  static const double x_glass = 1.5; // glass thickness [cm]
432  static const double x_gel = 1.0; // gel thickness [cm]
433 
434  // ntuple
435  static const int N = sizeof(ntuple) / sizeof(ntuple[0]) - 1;
436 
437  static const double xmax = 620.0; // maximal wavelength [nm] (tuple[ 0 ])
438  static const double xmin = 290.0; // minimal wavelength [nm] (tuple[N-1])
439 
440  const double x = lambda;
441 
442  double y = 0.0;
443 
444  if (x > xmin && x < xmax) {
445 
446  const int i = (int) (N * (x - xmax) / (xmin - xmax));
447  const int j = (i == N ? i - 1 : i + 1);
448 
449  const double x1 = xmax + i * (xmin - xmax) / N;
450  const double x2 = xmax + j * (xmin - xmax) / N;
451 
452  const double dx = (x - x1) / (x1 - x2);
453 
454  const double QE = ntuple[i].QE + (ntuple[i].QE - ntuple[j].QE ) * dx;
455  const double l_gel = ntuple[i].l_gel + (ntuple[i].l_gel - ntuple[j].l_gel ) * dx;
456  const double l_glass = ntuple[i].l_glass + (ntuple[i].l_glass - ntuple[j].l_glass) * dx;
457 
458  y = cola * QE;
459 
460  if (option) {
461 
462  if (l_glass > 0.0 && l_gel > 0.0)
463  y *= exp(-x_glass/l_glass) * exp(-x_gel/l_gel);
464  else
465  y = 0.0;
466  }
467  }
468 
469  return y;
470  }
double ANTARES::getQE ( const double  lambda)
inline

Quantum efficiency of 10-inch Hamamatsu PMT.

Parameters
lambdawavelength of photon [nm]
Returns
quantum efficiency

Definition at line 479 of file Antares.hh.

480  {
481  return getQE(lambda, true);
482  }
JDETECTOR::getQE
double getQE(const double R, const double mu)
Get QE for given ratio of hit probabilities and expectation value of the number of photo-electrons...
Definition: JPMTParametersToolkit.hh:89
double ANTARES::getPhotocathodeArea2D ( const double  x,
const double  lambda 
)
inline

Photo-cathode area 10 inch PMT.

Parameters
xcosine of angle of incidence
lambdawavelength of photon [nm]
Returns
photo-cathode area [m^2]

Definition at line 492 of file Antares.hh.

493  {
494  return getPhotocathodeArea() * getAngularAcceptance(x);
495  }
ANTARES::getPhotocathodeArea
const double getPhotocathodeArea()
Photo-cathode area 10 inch PMT.
Definition: Antares.hh:41
getAngularAcceptance
double getAngularAcceptance(const double x)
Angular acceptence of PMT.
Definition: JDrawLED.cc:84
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