Apparatus for determining the dose equivalent of neutrons

Patent · Tue Feb 14 04:00:00 EST 1978

OSTI ID:6754769

Heinzelmann, M; Rohloff, F; Schueren, H

An apparatus for determining the dose equivalent and dose rate equivalent of neutrons, which includes a detector for absorbing neutrons and emitting voltage pulses. The detector is surrounded by a mantle for moderating purposes and for absorbing neutrons. The detector is followed by amplifying means for amplifying the voltage pulses emitted by the detector while a voltage discriminator receives the amplified voltage pulses. The voltage discriminator is followed by recording means for registering the time average number of the voltage pulses emitted by the voltage discriminator while the detector for neutrons with energies up to at least 10/sup 6/ eV emits voltage pulses, the height of which, depends both on the energy freed by the nuclear reaction initiated by the absorbed neutrons and on the kinetic energy of the absorbed neutrons. The number of these voltage pulses shows a maximum. The voltage discriminator has a bias level above the height of the voltage of the by far greatest number of the voltage pulses distributed about the last mentioned maximum.

• Assignee: Kerforschungsanlage Julich Gesellschaft mit beschrankter Haftung
• Patent Number(s): US 4074136
• OSTI ID: 6754769
• Country of Publication: United States
• Language: English

Related Subjects

440102* -- Radiation Instrumentation-- Radiation Dosemeters
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
CADMIUM
DESIGN
DISCRIMINATORS
DOSE EQUIVALENTS
DOSE RATES
DOSIMETRY
ELECTRONIC CIRCUITS
ELEMENTS
ENERGY DEPENDENCE
HE-3 COUNTERS
MEASURING INSTRUMENTS
METALS
MODERATING DETECTORS
NEUTRON DETECTORS
NEUTRON DOSIMETRY
ORGANIC COMPOUNDS
ORGANIC POLYMERS
POLYETHYLENES
POLYMERS
POLYOLEFINS
PROPORTIONAL COUNTERS
PULSE CIRCUITS
PULSE DISCRIMINATORS
RADIATION DETECTORS
SENSITIVITY