Dose equivalent neutron dosimeter

Patent · Fri Dec 31 23:00:00 EST 1982

OSTI ID:864543

Griffith, Richard V ^[1]; Hankins, Dale E ^[2]; Tomasino, Luigi ^[3]; Gomaa, Mohamed A. M. ^[4]

---

1. Pleasanton, CA
2. Livermore, CA
3. Rome, IT
4. Heliopolis, EG

A neutron dosimeter is disclosed which provides a single measurements indicating the amount of potential biological damage resulting from the neutron exposure of the wearer, for a wide range of neutron energies. The dosimeter includes a detecting sheet of track etch detecting material such as a carbonate plastic, for detecting higher energy neutrons, and a radiator layer containing conversion material such as .sup.6 Li and .sup.10 B lying adjacent to the detecting sheet for converting moderate energy neutrons to alpha particles that produce tracks in the adjacent detecting sheet. The density of conversion material in the radiator layer is of an amount which is chosen so that the density of tracks produced in the detecting sheet is proportional to the biological damage done by neutrons, regardless of whether the tracks are produced as the result of moderate energy neutrons striking the radiator layer or as the result of higher energy neutrons striking the sheet of track etch material.

• Research Organization: Lawrence Livermore National Laboratory (LLNL), Livermore, CA
• DOE Contract Number: W-7405-ENG-48
• Assignee: United States of America as represented by United States (Washington, DC)
• Patent Number(s): US 4381454
• OSTI ID: 864543
• Country of Publication: United States
• Language: English

Related Subjects

/250/376/
10
adjacent
alpha
alpha particle
alpha particles
amount
biological
carbonate
chosen
containing
conversion
converting
damage
damage resulting
density
detecting
disclosed
dose
dose equivalent
dosimeter
energies
energy
energy neutron
energy neutrons
equivalent
equivalent neutron
etch
exposure
indicating
layer
lying
material
measurements
moderate
neutron
neutron dosimeter
neutron energies
neutron exposure
neutrons
neutrons striking
particles
plastic
potential
produce
produced
proportional
provides
radiator
range
regardless
result
resulting
sheet
single
striking
track
track etch
tracks
wearer
wide
wide range