We propose to develop improved scintillation materials. reviewing the state-of-the-art, we conclude that the main improvements have to result in: * increased speed * higher efficiency * chemical stability this combination of conditions downgrades halides and points out to materials containing ce(3+)… More

Cesium fluoride (cef3) has potential advantages as a scintillator for positron emission tomography (pet) scanning it has almost the same density as currently used bismuth germanate (bgo), but is at least 10 times faster. the main problem with using fluoride is its lower light output, approximately… More

Positron emission tomography (pet) is a powerful new tool for radiographic imaging of human organs, particularly the brain. however, most presently known scintillator materials find their application limited by deficiencies in one or more of the desired characteristics: brightness, stopping power,… More

Detection of weaponry and other hazards is an unfortunate but necessary factor in modern transportation environment. for inanimate objects, one particularly attractive technique is gammaray detection. irradiation with a high-energy source, such as a neutron emitter, causes elements in the object to… More

40094 November 8, 1996 ALEM Associates Of all the applications in which scintillators are used, none puts more rigorous demands on the material than high energy physics. The high radiation fluxes characteristic of these experiments requires both… More

Not Available Foster-Miller proposes to develop an integrated tactile transduction garment for in-flight spatial orientation. Pilot disorientation is a disturbingly frequent phenomenon for military, commercial and civilian pilots. Pilot disorientation costs the U.S. military about 30 lives and over… More

We propose to conduct research and development towards a ceramic scintillator composed of LSO:Ce. It is well known that crystalline LSO is one of the highest performance scintillators in term of light output and timing. Only impediment stands in the way of LSO assuming a commanding position in most… More

DESCRIPTION (provided by applicant): We propose to conduct research and development of a new ceramic scintillator based on cerium-activated lutetiumhafnate (Lu2Hf2O7:Ce). The development program is prompted by the realization that there is presently only one scintillate that fulfills the needs of… More

DESCRIPTION (provided by applicant): We propose to conduct research and development towards a ceramic scintillator composed of LSO:Ce. It is well known that crystalline LSO is one of the highest performance scintillators in terms of light output and timing. Only one impediment stands in the way… More

DESCRIPTION (provided by applicant): We propose to conduct research and development towards a ceramic scintillator composed of LSO:Ce. It is well known that crystalline LSO is one of the highest performance scintillators in terms of light output and timing. Only one impediment stands in the way… More

DESCRIPTION (provided by applicant): We propose to conduct research and development of a new ceramic scintillator based on cerium-activated barium hamate (BaHfO3:-Ce), strontium hafnate (SrHfO3:-Ce), and lutetium hafnate (Lu2Hf2O7:Ce). The development program is prompted by the realization that… More