Study of the temperature effect of resonantly scattered capture γ-rays

R. Moreh; O. Shahal; I. Jacob

doi:10.1016/0375-9474(74)90446-1

Study of the temperature effect of resonantly scattered capture γ-rays

R. Moreh, O. Shahal, I. Jacob

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Abstract

The temperature effect of resonantly scattered capture γ-rays was studied critically in the temperature range 4.2°K-520°K in ²⁰⁸Pb and in the range 4.2°K-670°K in ⁶²Ni. The γ-source was produced by thermal neutron capture in iron; the energy of the γ-line scattered by ²⁰⁸Pb is7.279 MeV and by ⁶²Ni is 7.646 MeV. The observ intensity from Ni was found to be in good agreement with Lamb theory using a single Debye temperature, θ_D = 420°K, throughout the whole temperature range. In the case of Pb, the agreement with Lamb theory using θ_D = 104°K was not as good, and a deviation from theory was observed in the temperature range 30°K-70°K; this deviation is discussed.

Original language	English
Pages (from-to)	77-84
Number of pages	8
Journal	Nuclear Physics A
Volume	228
Issue number	1
DOIs	https://doi.org/10.1016/0375-9474(74)90446-1
State	Published - 5 Aug 1974
Externally published	Yes

Keywords

Nuclear reactions

ASJC Scopus subject areas

Nuclear and High Energy Physics

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10.1016/0375-9474(74)90446-1

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title = "Study of the temperature effect of resonantly scattered capture γ-rays",

abstract = "The temperature effect of resonantly scattered capture γ-rays was studied critically in the temperature range 4.2°K-520°K in 208Pb and in the range 4.2°K-670°K in 62Ni. The γ-source was produced by thermal neutron capture in iron; the energy of the γ-line scattered by 208Pb is7.279 MeV and by 62Ni is 7.646 MeV. The observ intensity from Ni was found to be in good agreement with Lamb theory using a single Debye temperature, θD = 420°K, throughout the whole temperature range. In the case of Pb, the agreement with Lamb theory using θD = 104°K was not as good, and a deviation from theory was observed in the temperature range 30°K-70°K; this deviation is discussed.",

keywords = "Nuclear reactions",

author = "R. Moreh and O. Shahal and I. Jacob",

year = "1974",

month = aug,

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doi = "10.1016/0375-9474(74)90446-1",

language = "English",

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T1 - Study of the temperature effect of resonantly scattered capture γ-rays

AU - Moreh, R.

AU - Shahal, O.

AU - Jacob, I.

PY - 1974/8/5

Y1 - 1974/8/5

N2 - The temperature effect of resonantly scattered capture γ-rays was studied critically in the temperature range 4.2°K-520°K in 208Pb and in the range 4.2°K-670°K in 62Ni. The γ-source was produced by thermal neutron capture in iron; the energy of the γ-line scattered by 208Pb is7.279 MeV and by 62Ni is 7.646 MeV. The observ intensity from Ni was found to be in good agreement with Lamb theory using a single Debye temperature, θD = 420°K, throughout the whole temperature range. In the case of Pb, the agreement with Lamb theory using θD = 104°K was not as good, and a deviation from theory was observed in the temperature range 30°K-70°K; this deviation is discussed.

AB - The temperature effect of resonantly scattered capture γ-rays was studied critically in the temperature range 4.2°K-520°K in 208Pb and in the range 4.2°K-670°K in 62Ni. The γ-source was produced by thermal neutron capture in iron; the energy of the γ-line scattered by 208Pb is7.279 MeV and by 62Ni is 7.646 MeV. The observ intensity from Ni was found to be in good agreement with Lamb theory using a single Debye temperature, θD = 420°K, throughout the whole temperature range. In the case of Pb, the agreement with Lamb theory using θD = 104°K was not as good, and a deviation from theory was observed in the temperature range 30°K-70°K; this deviation is discussed.

KW - Nuclear reactions

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DO - 10.1016/0375-9474(74)90446-1

M3 - Article

AN - SCOPUS:0002105815

SN - 0375-9474

VL - 228

SP - 77

EP - 84

JO - Nuclear Physics A

JF - Nuclear Physics A

IS - 1

ER -

Study of the temperature effect of resonantly scattered capture γ-rays

Abstract

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