Low alpha experiments at the ALS

doi:10.2172/125114

Abstract

The authors present a modified, low alpha lattice for the Advanced Light Source where the quadrupole field strengths have been detuned to allow the momentum compaction factor to be varied smoothly from positive to negative values. With this low alpha lattice the authors decrease the momentum compaction factor by a factor of 5 to 0.0003 over normal operation resulting in a measured bunch length reduction of 2. They also measure the size the second order momentum compaction factor as well as store beam in a negative momentum compaction lattice. Streak camera measurements at positive and negative momentum compaction operation show longitudinal beam profile distributions that are in agreement with simulations by Fang et al.

Lung cancer risk of low-level exposures to alpha emitters: critical reappraisal and experiments based on a new cytodynamic model

Bogen, Kenneth T. February 1999

Ecologic U.S. county data suggest negative associations between residential radon exposure and lung cancer mortality (LCM)-inconsistent with clearly positive associations revealed by occupational data on individual miners, but perhaps explained by competing effects of cell killing vs. mutations in alpha-exposed bronchial epithelium. To assess the latter possibility, a biologically based "cytodynamic 2-stage" (CD2) cancer-risk model was fit to combined 1950-54 age- specific person-year data on lung cancer mortality (LCM) in white females of age 40+ y in 2,821 U.S. counties (-90% never-smokers), and in 5 cohorts of underground miners who never smoked. New estimates of household annual average radon exposuremore »« less
DOI: 10.2172/7990

Full Text Available
Low Alpha Experiments at the ALS

Robin, D. ; Alvis, R. ; Jackson, A. ; ... April 1996 - AIP Conference Proceedings

We present a modified, low alpha lattice for the Advanced Light Source where the quadrupole field strengths have been detuned to allow the momentum compaction factor to be varied smoothly from positive to negative values. With this low alpha lattice we decrease the momentum compaction factor by a factor of 5, to 0.0003 over normal operation, resulting in a measured bunch length reduction by a factor of 2. We also measure the size of the second-order momentum compaction factor as well as store beam in a negative momentum compaction lattice. Streak camera measurements at positive and negative momentum compaction operationmore »« less
DOI: 10.1063/1.50303
DER KUGELHAUFENREAKTOR ALS THERMISCHER THORIUMBRUETER. I. GRAPHIT ALS MODERATOR. (The Pebble-Bed Reactor as a Thermal Thorium Breeder. I. Graphite as Moderator). (in German)

Brandes, S. January 1967
Physical Aspect of the Plan of a Research Reactor with Natural Uranium as Fuel and Heavy Water as Moderator and Coolant; PHYSIKALISCHE GESICHTSPUNKTE BEIM ENTWURF EINES FORSCHUNGSREAKTORS MIT NATURLICHEM URAN ALS BRENNSTOFF UND SCHWEREM WASSER ALS MODERATOR UND KUHLMITTEL

Hafele, W. ; Meetz, K. February 1957
On the Isotope Effect in Ion Transport in Aqueous Solution--as a Basis for Isotope Separation on and as an Instrument in the Physical-Chemical Study on Biological Membrandes; UEBER ISOTOPIE-EFFEKTE BEIM IONENTRANSPOR TIN WAESSRIGER LOESUNG-- ALS GRUNDLAGE ZUR ISOTOPENTRENNUNG UND ALS HILFSMITTEL PHYSIKALISCH-CHEMISCHER UNTERSUCHUNGEN AN BIOLOGISCHEN MEMBRANEN

Wagener, K. July 1965

Title: Low alpha experiments at the ALS

Abstract

Citation Formats

Lung cancer risk of low-level exposures to alpha emitters: critical reappraisal and experiments based on a new cytodynamic model

Low Alpha Experiments at the ALS

DER KUGELHAUFENREAKTOR ALS THERMISCHER THORIUMBRUETER. I. GRAPHIT ALS MODERATOR. (The Pebble-Bed Reactor as a Thermal Thorium Breeder. I. Graphite as Moderator). (in German)

Physical Aspect of the Plan of a Research Reactor with Natural Uranium as Fuel and Heavy Water as Moderator and Coolant; PHYSIKALISCHE GESICHTSPUNKTE BEIM ENTWURF EINES FORSCHUNGSREAKTORS MIT NATURLICHEM URAN ALS BRENNSTOFF UND SCHWEREM WASSER ALS MODERATOR UND KUHLMITTEL