halflife.c File Reference

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <ctype.h>
#include <math.h>
#include "include/halflife.h"

Functions
double	hlFromIsotope (char *isocode)
double	hl2lambda (double halflife)
double	lambda2factor (double lambda, double frametime, double framedur)
char *	hlCorrectIsotopeCode (char *isocode)
Variables
static char *	isotope_code []

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Function Documentation

double hl2lambda (  double  halflife  )

Calculates the isotope lambda from specified halflife. Returns: A negative value is returned in case of error.

char* hlCorrectIsotopeCode (  char *  isocode  )

Check that isotope code, e.g. F-18, is in valid format, containing '-' and in this order. Returns the correct isotope code. Returns: Returns pointer to correct isotope code, and NULL if it was not valid and could not be corrected. Parameters: isocode  Pointer to string "C-11", "11c" etc; contents of this string is not changed, and this is not returned in any case

double hlFromIsotope (  char *  isocode  )

Identify the isotope from the specified isotope code string and return the halflife (min). Returns: A negative value is returned in case of error. Parameters: isocode  Pointer to string "C-11", "18f" etc.

double lambda2factor (  double  lambda, double  frametime, double  framedur )

Calculate the decay correction factor for specified isotope lambda. Returns: A negative value is returned in case of error. Parameters: lambda  Negative lambda removes decay correction frametime  Frame start time, or mid time if framedur<=0 framedur  If unknown, set <0 and give mid time for frametime

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Variable Documentation

char* isotope_code[] [static]

Initial value: { "Br-75", "Br-76", "Cu-62", "Cu-64", "Fe-52", "Ga-68", "Ge-68", "Na-22", "Rb-82", "Zn-62", "F-18", "C-11", "N-13", "O-15", "O-14", 0} Valid isotope codes. Note: when adding isotopes, make sure that all isotopes with one letter are AFTER all two letter isotopes with the same initial letter.

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