User guide

NEUTRON DETECTORS
BF3 Neutron Counters (1’’) e.g. WL 23057
• Proportional counter tubes for the pulse range
• High sensitivity due to  lling with enriched BF3 gas
• 1’’ (25.4 mm) diameter
• Proven construction
• Large measuring range
• Very low gamma sensitivity
• Manufactured by Mirion Technologies (IST) Corpo-
ration
Neutron Ionization Chambers KNK/KNU 50
• For intermediate range and power range
• Ionization chambers coated with enriched B10
• Simple and rugged construction
• Saturation proof
• Large and steady sensitive length
• Output signal: DC current starting at 1 pA
• Compensation of gamma radiation (KNK 50)
• LOCA proof (KNK 50 SAC)
SPN-Detectors e.g. WL 23215
• For in-core power distribution monitoring
• No detector supply voltage required
• 1.6 mm diameter
• Proven construction
• Large measuring range up to 1e15 nv
• Output signal: DC current
• Very low gamma sensitivity
• Manufactured by Mirion Technologies (IST) Corpo-
ration
DIGITAL SIGNAL PROCESSING CHANNELS
Digital neutron  ux monitoring channels system
TK 250 are characterized by ef cient functions, useful
procedures for periodical testing, a comfortable
operators menu structure and a rugged operational
behaviour. Hardware and software are arranged in
modules. The internal multiprocessor structure offers
the  exibility of reducing the region of highest safety
relevance to a small, separated part within the chan-
nel.
proTK™
Neutron Flux Instrumentation