### Abstract

The special solutions of the integral equations for the expected value and the variance of count-rate measurements are investigated. The results indicate that in case of non-parallelable models the relative variance can be reduced to any amount by count-rate increase. However, in the case of parallelable models the minimum amount of the relative variance is 0.26 Practical consequences result from the fact that variance can exceed the expected count-rate if the half-life of the radioactive sample is not to be disregarded.

Original language | German |
---|---|

Pages (from-to) | 21-22 |

Number of pages | 2 |

Journal | NUC Compact |

Volume | 13 |

Issue number | 1 |

Publication status | Published - Jan 1 1982 |

### Fingerprint

### ASJC Scopus subject areas

- Radiology Nuclear Medicine and imaging