Inelastic scattering of neutrons in solids and liquids

JOURNAL

OF NUCLEAR

6, No. 2 (1962) 237,

MATERIALS

NORTH-HOLLAND

PUBLISHING

CO., AMSTERDAM

BOOK REVIEW

Inelastic

scattering of neutrons in solids and

liquids. (Proceedings

of a symposium

sponsored

pages,

Atomic

Energy

Agency, Vienna. 1961. 72s., $ 12.00, NF 48).

investigation

in water

and other

solids,

by the International Atomic Energy Agency and h6ld in Vienna, October 1960). (International

detailed

651

the

production

neutrons

using

neutron

spectra

tributions

symposium between

is that which involves

the scattered

of the scatterer, sense. can

yield

connected

reactor

moderators emphasis

the solid

about

in moderator

subject

and the energy However, scattering

and liquid

scattering

prooess,

All

atomic

and the diffusive

This

beryllia,

were

and

of the properties spectra

of the

of the study

as a tool

in research

states. experimental

theory

of

Only

of a material

The

4 con-

with the in terms

is extremely

properties water

actively

and

made

papers

of

Experigraphite,

and some hydro-

engaged

in this field

contributions

and discussion

serve as an excellent

growing

interest

process

field of research

to those interested

to

the

recorded

detailed

in

survey

and will be of

in the dynamics

of

atoms in the solid and liquid states. The languages

of

the

symposium

and

all the

were

papers

French,

English,

French

are provided

and

with

Russian

abstracts

in

Russian and Spanish. The discussion

in English. D.

237

cold

thermal

as yet in its infancy.

hydride,

the laboratories

is recorded

the

of

the

are reported.

represented

English, methods,

zirconium materials

of a rapidly great

properties

moderating

the Proceedings

of thermal

in this symposium

the

Symposium.

is obviously

and

materials.

of the scattering

and is a subject on

genous

and

process

the

The topics dealt with include the general the

ments

in the nuclear in energy

was on the application

neutron

difficult

of energy

in such a scattering

with the study

in reactors.

of inelastic into

change

information

in a liquid.

closely

main

the

in a solid (phonons)

motions

neutrons

of

of a neutron valuable

vibrations other

i.e. it is not inelastic

Measurements

momentum

exchange

beams

moderators

process, and it is clear that the description

of the details

neutron and the atomic motions

intense

motions

crystalline

out of a total of 50 deal explicitly

moderation

of neutrons discussed in this

and in simple

of

cooled

of the moderating The inelastic scattering

of atomic and molecular liquids

A.

O’CONNOR