October 1995 in PDF format (4098K)
Developed at Lawrence Livermore National Laboratory, the zinc/air battery weighs only one-sixth as much as standard lead/acid batteries and occupies one-third the space, yet costs less per mile to operate. Further, because the battery is easily refuelable, it promises trouble-free, nearly 24-hour-a-day operation for numerous kinds of electric vehicles, from forklifts to delivery vans and possibly, one day, personal automobiles. The test of a Santa Barbara Municipal Transit bus with a hybrid of zinc/air and lead/acid batteries capped a short development period for the zinc/air battery. The test run indicated the zinc/air battery's potential savings in vehicle weight from 5.7 to 4.0 metric tons, in battery weight from 2.0 to 0.3 metric tons, in battery volume from 0.79 to 0.25 m3, and in electricity cost from 5.6 cents per mile to 4.7 cents per mile. The power, however, remains the same.
At Lawrence Livermore National Laboratory, we have developed an instrument that can help locate and identify special nuclear material (SNM) and other radioactive materials. Recent advances in position-sensitive detector technology, coupled with advances from gamma-ray astronomy, have allowed researchers to build the gamma-ray imaging spectrometer (GRIS), capable of collecting the radiation and generating an image of its source. Such images of invisible radiation can be combined with visible-light images to clearly show the location of the materials. The gamma-ray energy information from different parts of the image can uniquely identify the type of material present. Although GRIS was developed to control the SNM associated with nuclear weapons, we have tested the instrument in several of a myriad of applications in other areas, including environmental cleanup, astronomy, medicine, the nuclear power industry, and any other enterprise where radioactive sources are used.
and LLNL Disclaimers