Calculation Of Solid Angle Research Articles

The Monte Carlo calculation of the average solid angle subtended by a right circular cylinder from distributed sources

A Monte Carlo method utilizing total varience reduction is applied to the calculation of the solid angle subtebded by a right circular cylindrical detector from a point of arbitrary position. This method should be useful in those cases where the average solid angle from a distributed source of unusual shape is desired. Calculated values for various cases of interest compared to values given in the literature indicate that the method is correct.

A general solid angle calculation by a Monte Carlo method

A procedure is described for calculating the solid angle in a general source-to-detector geommetry, by a Monte Carlo method.

Calculation of Solid Angle Subtended by Rectangular Apertures

Calculation of Solid Angle Subtended by Rectangular Apertures

Chamber a diffusion a cible gazeuse de faible volume a systeme de pompage differentiel

An accurate small volume gas scattering chamber installed on the Van de Graaff tandem at C.E.N. Saclay is described. Detailed design factors for the differential pumping system are given. The chamber can have up to 32 detectors. The associated electronics is briefly described. Some experimental data are presented together with a short description of the solid angle calculation.

Solid angle calculations

An analogy between the calculation of the total solid angle subtended by an aperture at a point or extended source and the calculation of certain electrostatic forces and energies is discussed. It is shown that such solid angle calculations reduce to the evaluation of the electrostatic energies of uniformly charged surfaces. A collection of formulae for the calculation of the electrostatic energy of uniformly charged surfaces for a range of different shapes is given. The general method is illustrated by considering the solid angle subtended by circular and rectangular apertures at point, surface and volume sources. In the case of rectangular apertures and for a range of source distributions, the value of the solid angle may be expressed analytically in closed form.