INSTRUMENTATION FOR A SUBCRITICAL HOMOGENEOUS SUSPENSION REACTOR. IIIA. THE MONITORING OF LOW NEUTRON FLUX BY MEANS OF FAST PULSE-COUNTING CHANNELS

Journal Article · Sat Mar 12 04:00:00 EST 1960 · Philips Technical Review (Netherlands)

OSTI ID:4085528

van Zolingen, J J

A description of the pulse-counting channels used for monitoring the neutron flux in the KEMA subcritical suspension reactor is given. The components developed in the KEMA laboratory include a "millivolt discriminator" for pulses from as low as 12 mv at up to several million pulses per second and an improved fast-response flop-flop circuit capable of handling 15 x 10/sup 6/ pulses per second. The linear integrator is based on a "pump circuit," and the logarithmic integrator comprises eight such circuits in parallel. In the latter there exists a Iogarithmic relation between the meter deflection and the counting rate n, extending from n = 1 to n = 3 x 10/sup 6/ pulses per sec (6 1/2 decades). (auth)

• Research Organization: Originating Research Org. not identified
• NSA Number: NSA-15-010427
• OSTI ID: 4085528
• Journal Information: Philips Technical Review (Netherlands), Journal Name: Philips Technical Review (Netherlands) Vol. Vol: 21; ISSN PTREA
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

CRITICALITY
ELECTRONIC EQUIPMENT
EUROPE
FUEL SUSPENSIONS
HOMOGENEOUS REACTORS
INSTRUMENTS
MONITORING
NETHERLANDS
NEUTRON FLUX
PULSE ANALYZERS
PULSES
REACTOR TECHNOLOGY
REACTORS
RESEARCH REACTORS
SUSPOP