Photograph of the Abrams Building in Lufkin, Texas.

An overview of the assumptions and models incorporated in the ongoing Induction-Linac-based, HIF System Assessment is presented. Final transport, compression and final focus pose constraints which form a critical link between the accelerator and target requirements. A recent analysis has shown that system costs may be considerably reduced by the use of multiply charges ions. The assumptions underlying this direction are described.

Selected examples of advanced accelerator concepts are reviewed. Such plasma accelerators as plasma beat wave accelerator, plasma wake field accelerator, and plasma grating accelerator are discussed particularly as examples of concepts for accelerating relativistic electrons or positrons. Also covered are the pulsed electron-beam, pulsed laser accelerator, inverse Cherenkov accelerator, inverse free-electron laser, switched radial-line accelerators, and two-beam accelerator. Advanced concepts for ion acceleration discussed include the electron ring accelerator, excitation of waves on intense electron beams, and two-wave combinations. (LEW)

An aerial photograph of Abilene, Texas, centering on the area around the intersection of South 1st Street and Leggett Drive. The photo was taken by Abilene photographer Don Hutcheson. Photographer's Note: Taco Bell

An aerial photograph of Abilene, Texas, centering on the area around the intersection of South 1st Street and Leggett Drive. The photo was taken by Abilene photographer Don Hutcheson. Photographer's Note: Taco Bell

An aerial photograph of Abilene, Texas, centering on the area around the intersection of South 1st Street and Leggett Drive. The photo was taken by Abilene photographer Don Hutcheson. Photographer's Note: Taco Bell

An aerial photograph of Abilene, Texas, centering on the area around the intersection of South 1st Street and Leggett Drive. The photo was taken by Abilene photographer Don Hutcheson. Photographer's Note: Taco Bell

An aerial photograph of Abilene, Texas, centering on the area around the intersection of South 1st Street and Leggett Drive. The photo was taken by Abilene photographer Don Hutcheson. Photographer's Note: Taco Bell

An aerial photograph of Abilene, Texas, centering on the area around the intersection of South 1st Street and Leggett Drive. The photo was taken by Abilene photographer Don Hutcheson. Photographer's Note: Taco Bell

An aerial photograph of Abilene, Texas, centering on the area around the intersection of South 1st Street and Leggett Drive. The photo was taken by Abilene photographer Don Hutcheson. Photographer's Note: Taco Bell

An aerial photograph of Abilene, Texas, centering on the area around the intersection of South 1st Street and Leggett Drive. The photo was taken by Abilene photographer Don Hutcheson. Photographer's Note: Taco Bell

An aerial photograph of Abilene, Texas, centering on the area around the intersection of South 1st Street and Leggett Drive. The photo was taken by Abilene photographer Don Hutcheson. Photographer's Note: Taco Bell

An aerial photograph of Abilene, Texas, centering on the area around the intersection of South 1st Street and Leggett Drive. The photo was taken by Abilene photographer Don Hutcheson. Photographer's Note: Taco Bell

An aerial photograph of Abilene, Texas, centering on the area around the intersection of South 1st Street and Leggett Drive. The photo was taken by Abilene photographer Don Hutcheson. Photographer's Note: Taco Bell

Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.

The evolution of six-quark color-singlet state distribution amplitudes is formulated as an application of perturbative quantum chromodynamics to nuclear wave functions. We present a general method of solving the evolution equation for multiquark bound states and predict the asymptotic Q/sup 2/ slope for the deuteron charge form factor as a result.

Daily newspaper from Baytown, Texas that includes local, state, and national news along with advertising.

Photograph of the Bell-Ascher House in Asherton, Texas.

Two sets of experiments were conducted to determine if corrosion products from radioactive Type 347 stainless steel could be biologically transferred from sediment through a marine food chain, and whether corrosion products dissolved in seawater could be bioaccumulated and then eliminated. Corrosion products containing /sup 60/Co and /sup 63/Ni from the radioactive stainless steel were introduced into marine sediments. Infaunal polychaete worms exposed to these sediments bioaccumulated the radionuclides. The feeding of these worms to shrimp and fish resulted in a trophic transfer of the radioactive products across a one-step food chain. The magnitude of the transfers are described in terms of transfer factors. Dissolved corrosion products as measured by the radionuclides were also bioaccumulated by shrimp and fish concentrating more than fish. Concentration factors were calculated.

Photograph of the Capitol in Austin, Texas.

Photograph of the Carnegie Building (located at 502 N Queen) in Palestine, Texas.

Photograph of the Carrington-Covert House in Austin, Texas.

Photograph of the Carrington-Covert House in Austin, Texas.

The horizontally scanning, multiangle charge-exchange analyzers on the Princeton Large Torus (PLT) and the Poloidal Divertor Experiment (PDX) were used to study the effects of MHD activity on the background ion distribution function and on the beam ion slowing-down process during high-power neutral injection. Sawtooth oscillations were observed in the fast ion flux on PLT and PDX, and measurements with neutral beams providing local neutral density enhancement indicate that ions are transported radially when these events occur. With near-perpendicular injection in PDX, at the lower toroidal fields necessary to maximize beta, rapid, repetitive bursts of greatly enhanced charge-exchange flux were observed. These are associated with the ''fishbone'' MHD instability, and a substantial depletion of the perpendicular slowing-down spectrum below the injection energy was seen. A simple phenomenological model for this loss mechanism was developed, and its use in simulation codes has been successful in providing good agreement with the data. The behavior and characteristics of this model are well matched by the direct theoretical calculations.