Industrial Automation Magazine India

SELF POWERED NEUTRON DETECTOR

Published on : Tuesday 30-11--0001

SPND can be of many types. The typical inconel type SPND is a coaxial cable consisting of an inner electrode of inconel (the emitter), surrounded by insulation and an outer electrode of inconel (the collector).

Preferably, the lead cable and detector sections are integral, i.e. the signal wire of the lead cable mates directly to the emitter; the insulation of both sections are identical and the collector of the detector section is also the outer sheath of the lead cable section. Other type of SPNDs are Vanadium SPND, Rhodium SPND etc, in which only the emitter material is of Vanadium and Rhodium respectively.

In Self-Powered Neutron Detectors (SPNDs), the interactions of neutrons and atomic nuclei are used to produce a current which is proportional to the neutron fluence rate (flux).

Application of SPND:

• It is used for core flux measurement in Nuclear reactor.
• The design of SPND is rugged, simple, flexible and long lived.
• It is used for high flux-high temperature.
• Indication or control.
• It is used for mapping or permanent installation.

Advantages of SPND

• SPND doesn't require power supply.
• SPND structure is simple and robust.
• SPND has small mechanical size which is desired for in-core installation.
• The stability of SPND is good under temperature and pressure condition.
• SPND generates a reproducible linear signal.

Contact:

TEMPSENS INSTRUMENTS (I) PVT. LTD. : UNIT #1

Tempsens Instruments (I) Pvt. Ltd.
Tel : +91-294-3057700
Email : [email protected]

TEMPSENS INSTRUMENTS (I) PVT. LTD. : UNIT #2

Tempsens Instruments (I) Pvt. Ltd. - Unit II
Tel : +91-294-3052953/3052955