MONOCHROMATIC PHOTONS WITH VARIABLE ENERGY OBTAINED BY ANNIHILATION IN FLIGHT OF POSITRONS (in French)
Journal Article
·
· Journal de Physique et le Radium (France) Changed to J. Phys. (Orsay, Fr.)
OSTI ID:4097395
A photon monochromator using the annihilation in flight of positrons produced from high-energy electrons was installed at the linear electron accelerator at Saclay. The design of this monochromator is described. The electrons from the accelerator, slowed in a 2.2-mm-thick platinum target, produce photons, negatrons, and negatron-positron pairs. The screening magnets extract a beam of monoenergetic positrons. The positrons are annihilated in a 1mm-thick lithium target. The positron spectrum obtained with a primary beam of 15 mu amp electrons is shown. The isochromatism of the photons was confirmed by elastic scattering on the 15.11-Mev level of C/sup 12/. The relationship defining the number of annihilation photons per second was determined. The photon intensity is sufficient for the study of photon-nucleus interactions. (J.S.R.)
- Research Organization:
- Centre d'Etudes Nucleaires, Saclay, France
- NSA Number:
- NSA-15-009695
- OSTI ID:
- 4097395
- Journal Information:
- Journal de Physique et le Radium (France) Changed to J. Phys. (Orsay, Fr.), Journal Name: Journal de Physique et le Radium (France) Changed to J. Phys. (Orsay, Fr.) Vol. Vol: 21; ISSN JPAAA
- Country of Publication:
- Country unknown/Code not available
- Language:
- French
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