Published February 1985 | Version v1
Report Open

Measurement of cross sections of total nuclear photon absorption by the 12C and 208Pb nuclei in the Δ(1232) region

Creators

Description

The photon total absorption cross-section has been measured using an positron annihilation in flight tagged photon beam and a very large acceptance 4π detector (with an overall efficiency of the order of 85%) in the energy range 133-531 MeV on carbone and lead. The measured cross-section varies linearly with A and is compared to other experiments and theoretical predictions

Availability note (English)

MF available from INIS under the Report Number.

Abstract (Portuguese)

Nous avons mesure les sections efficaces d'absorption totale de photons sur les noyaux de carbone et de plomb dans la gamme d'energie 133-531 MeV, en utilisant un faisceau de photons etiquetes cree par annihilation en vol de positrons, et un detecteur 4π de grande acceptance (d'efficacite moyenne d'environ 85%). La section efficace mesuree varie lineairement avec A, et est comparee aux autres experiences at aux modeles theoriques

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Additional details

Additional titles

Original title (French)
Mesure des sections efficaces d'absorption nucleaire totale de photons par les noyaux

Publishing Information

Imprint Pagination
6 p.
Report number
CEA-CONF--7800

Conference

Title
8. Biennial session on nuclear physics.
Dates
4-8 Feb 1985.
Place
Aussois (France).

INIS

Country of Publication
France
Country of Input or Organization
France
INIS RN
17015324
Subject category
S73: NUCLEAR PHYSICS AND RADIATION PHYSICS; S73: NUCLEAR PHYSICS AND RADIATION PHYSICS;
Resource subtype / Literary indicator
Conference, Numerical Data
Descriptors DEI
ABSORPTION; CARBON 12 TARGET; EXPERIMENTAL DATA; LEAD 208 TARGET; MEV RANGE 100-1000; PHOTONUCLEAR REACTIONS; PHOTOPROTONS; PIONS NEUTRAL; TOTAL CROSS SECTIONS
Descriptors DEC
BARYONS; BOSONS; CATIONS; CHARGED PARTICLES; CROSS SECTIONS; DATA; ELEMENTARY PARTICLES; ENERGY RANGE; FERMIONS; HADRONS; HYDROGEN IONS; HYDROGEN IONS 1 PLUS; INFORMATION; IONS; MESONS; MEV RANGE; NUCLEAR REACTIONS; NUCLEONS; NUMERICAL DATA; PHOTONUCLEONS; PIONS; PROTONS; PSEUDOSCALAR MESONS; TARGETS

Optional Information

Notes
9 refs.
Secondary number(s)
DPh-N--2242bis.