Author: J. C. SolemPublisher:
ISBN:
Category : Gamma ray lasers
Languages : en
Pages : 15
Book Description
On the Feasibility of an Impulsively Driven Gamma-ray Laser
Author: J. C. SolemPublisher:
ISBN:
Category : Gamma ray lasers
Languages : en
Pages : 15
Book Description
Publications of Los Alamos Research
Author: Los Alamos National LaboratoryPublisher:
ISBN:
Category : Research
Languages : en
Pages : 398
Book Description
Publications of LASL Research
Author: Los Alamos Scientific LaboratoryPublisher:
ISBN:
Category : Research
Languages : en
Pages : 256
Book Description
Physics with Many Positrons
Author: Alfredo DupasquierPublisher: IOS Press
ISBN: 1607506467
Category : Science
Languages : en
Pages : 627
Book Description
With the exception of positron emission tomography (PET), the field of low energy positron science produces relatively few academic articles each year compared to more accessible fields. Though much has been achieved since the publication of two related volumes earlier in this series: Positron Solid State Physics (1981) and Positron Spectroscopy of Solids (1993), only the first steps have been made towards 'physics with many positrons': physical situations where the interactions of positrons with positrons can be observed. This 2009 "Enrico Fermi School" aims to stimulate the field o.
Monthly Catalog of United States Government Publications
Author: Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 1180
Book Description
Energy Research Abstracts
Author: Monthly Catalog of United States Government Publications
Author: United States. Superintendent of DocumentsPublisher:
ISBN:
Category : Government publications
Languages : en
Pages : 1220
Book Description
Proof of the Feasibility of Coherent and Incoherent Schemes for Pumping a Gamma-Ray Laser
Author: Publisher:
ISBN:
Category :
Languages : en
Pages : 0
Book Description
The most productive approaches to the problem of the gamma-ray laser have focused upon upconversion techniques in which metastable nuclei are pumped with long wavelength radiation. At the nuclear level the storage of energy can approach tera-Joules (10(exp 12)J) per liter for thousands of years. However, any plan to use such a resource for a gamma-ray laser poses problems of a broad interdisciplinary nature requiring the fusion of concepts taken from relatively unrelated fields of physics. Our research group has described several means through which this energy might be coupled to radiation fields with cross sections for stimulated emission that could reach 10(exp -17)sq cm. Such a stimulated release could lead to output powers as great as 3 x 1021 Watts/liter. Since 1978 we have pursued an approach for the upconversion of longer wavelength radiation incident upon isomeric nuclear populations that can avoid many of the difficulties encountered with traditional concepts of single photon pumping. Experiments have confirmed the general theory and have indicated that a gamma- ray laser is feasible if the right combination of energy levels and branching ratios exists in some real material. Of the 1,886 distinguishable nuclear materials, the present state-of-the-art has been adequate to identify 29 first- class candidates, but further evaluation cannot proceed without remeasurements of nuclear properties with higher precision. Gamma-ray laser, Ultrashort wavelength laser.
Monthly Catalogue, United States Public Documents
Author: Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 1234
Book Description
Author: