Thermalization of Neutrons in Condensed Matter

Beyster, J.R.; Young, James A.

doi:10.1146/annurev.ns.17.120167.000525

Cited by 3 publications

(2 citation statements)

References 17 publications

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“…that neutron interaction with hydrogen at low energies is quite different for (CH,), and for H,O (see, for example, Beyster and Young 1967). However, a series of computations which treated all of the non-aqueous hydrogen as being bound via (CH,), gave excellent agreement with experimentally determined values of thermal flux in tissue-equivalent phantoms (Frigerio and Branson 1967).…”

Section: Chemical Compositionmentioning

confidence: 84%

“…With respect to density a curious situation has arisen-doses are almost invariably computed on the basis of unit density and experiments are performed with liquids of density > 1.11 (Boot and Dennis 1968, Lawson and Watt 1968, Ritts, Solomito and Stevens 1969, despite the fact that real tissue densities lie, largely, in between. Failure to observe correct densities introduces error in several ways (Frigerio 1962).…”

Section: Densitymentioning

confidence: 99%

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Depth dose determinations I. Tissue-equivalent liquids for Standard Man and muscle

Frigerio

Coley

Sampson

1972

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Requirements for tissue-equivalent mixtures are discussed, and methods are described for formulating mixtures exact in elemental composition and density. Methods are also given for estimating the densities and vapour pressures of mixtures of known compounds, as well as a list of the properties of compounds useful in tissueequivalent formulations. A density value of 1.066 f 0.003 g at 37 ' c is obtained for lean mammalian muscle, from the literature and from experiments. A density of 1.063 g cm-3 at 37'c is obtained from the literature, for Standard Man exclusive of air voids. Tissue-equivalent liquids and their properties are presented for Standard Man and for lean muscle. These are exact in composition for C, H, 0, S, Ca, P, S, K, Sa, Cl and Mg, range from 1.012 to 1.106 g in density at 25 "c, and include mixtures for the standard density range of 1.06-1.07 g cm-3. Two simplified mixtures are also described, correct only for C, H, 0 and N, for use where exact elemental composition is not important.

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Section: Chemical Compositionmentioning

confidence: 84%

Section: Densitymentioning

confidence: 99%

Depth dose determinations I. Tissue-equivalent liquids for Standard Man and muscle

Frigerio

Coley

Sampson

1972

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Homogeneous reactor and neutron diffusion equation

Devan

Bachchan

2021

Physics of Nuclear Reactors

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Thermal Expansion and Phonon Frequency Shifts in Nonprimitive Lattices

Slaggie

1970

Phys. Rev. B

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P r e p a r e d u n d e r C o n t r a c t AT(04-3)-167 P r o j e c t A g r e e m e n t No. 2 for the San F r a n c i s c o Operations Office U. S . Atomic E n e r g y C o m m i s s i o n Gulf G e n e r a l Atomic P r o j e c t 48. 0 1 coupling p a r a m e t e r s for an undistorted l a t t i c e with cubic anharmonicity. DISCLAIMERThe work is formulated in t e r m s of S y m m e t r i c finite strain p a r a m e t e r s and a p p r o p r i a t e i n t e r n a l s t r a i n s a r e introduced i n such a m a n n e r that the f o r m u l a t i o n exhibits explicitly the invariance of the c r y s t a l potential e n e r g y and n o r m a l mode frequencies to r i g i d body r o t a t i o n s . As a n u m e r i c a l app:lication t h e coefficient of l i n e a r . expansion and the phonon frequency distributions a t 300°K and 800°K have . been calculated f o r z i r c o n i u m hydride with a s h o r t -r a n g e c e n t r a l f o r c e model including third -n e a r e s t -neighbor f o r c e s . 5. i i CONTENTS

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Thermalization of Neutrons in Condensed Matter

Cited by 3 publications

References 17 publications

Depth dose determinations I. Tissue-equivalent liquids for Standard Man and muscle

Depth dose determinations I. Tissue-equivalent liquids for Standard Man and muscle

Homogeneous reactor and neutron diffusion equation

Thermal Expansion and Phonon Frequency Shifts in Nonprimitive Lattices

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