air_dens_cf             Correct for air density - useful for vented ion
                        chambers
disk_to_disk_solid_angle
                        Calculate fractional solid angle for disk to
                        disk
dk_activity             Time for a radionuclide to decay to a target
                        activity.
dk_cf                   Correction factor for source decay.
dk_pct_to_num_half_life
                        Number of half-lives past
dk_pct_to_num_t_h       Number of half-lives past
dk_reverse              Calculate amount of radioactivity given
                        interval.
dk_time                 Time to decay to target radioactivity.
half_life_2pt           Calculate half-life based on two data points
neutron_geom_cf         Solid Angle Correction for Neutron Detectors
                        with Point Source
photons_cs137_hist      File Description:
plot_spec_from_hist     Convert histogram data to average points and
                        plot as spectrum.
radsafer                radsafer package
rate_meter_sim          Ratemeter Simulation
rot_fun                 MCNP coordinate transformation rotation
scaler_sim              Count Room Scaler Simulation
scan2spec.df            Copy and paste MCNP output spectral data for
                        use with 'mcnp_plot_out_spec.R'
si_hist                 MCNP histograms source energies
sp_hist                 MCNP histograms source bin probabilities
stay_time               Stay time for radiation work.
tan_d2                  MCNP Cone Opening Parameter
tau_est                 Estimate tau parameter for ratemeter_sim
