PERIOD METER OUTPUT DURING STARTUP TRANSIENTS
Technical Report
·
OSTI ID:4716997
The time response of a period meter whose input signal comes from an ionization chamber is calculated using a Ferranti Mercury digital computer program. The period meter considered is one for which the input time constant is determined by the input capacity and the logarithmic element. The input excitation is a terminated ramp of reactivity. Other reactivity inputs may be treated. In particular the step change of reactivity may be used as the input excitation. Allowance is taken of the power dependent time constant associated with the logarithmic element and of the differentiating and integrating time constants in the period meter. The program may be used to assess instruments and for safety and operations studies on reactors which use this type of period meter. An example of the use of the program is given. (auth)
- Research Organization:
- United Kingdom Atomic Energy Authority. Reactor Group. Atomic Energy Establishment, Winfrith, Dorset, England
- NSA Number:
- NSA-17-024608
- OSTI ID:
- 4716997
- Report Number(s):
- AEEW-R-231
- Country of Publication:
- United Kingdom
- Language:
- English
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