A detector and front-end electronics unit with secure data transmission has been designed and implemented for a fissile mass flow monitoring system for fissile mass flow of gases and liquids in a pipe. The unit consists of 4 bismuth germanate (BGO) scintillation detectors, pulse-shaping and counting electronics, local temperature sensors, and on-board local area network nodes which locally acquire data and report to the master computer via a secure network link. The signal gain of the pulse-shaping circuitry and energy windows of the pulse-counting circuitry are periodicially self calibrated and self adjusted in situ using a characteristic line in the fissile material pulse height spectrum as a reference point to compensate for drift such as in the detector gain due to PM tube aging. The temperature- dependent signal amplitude variations due to the intrinsic temperature coefficients of the PM tube gain and BGO scintillation efficiency have been characterized and real-time gain corrections introduced. The detector and electronics design, measured intrinsic performance of the detectors and electronics, and the performance of the detector and electronics within the fissile mass flow monitoring system are described.

Semiannual report providing tabular statistical information about motor vehicle accidents that involved more than one vehicle in Texas during calendar year 1997, with data broken out by various criteria including number of persons, locations, types of accidents, time of day, and other factors.

Semiannual report providing tabular statistical information about motor vehicle accidents involving only one vehicle in Texas during 1997, with data broken out by various criteria including number of persons, locations, types of accidents, time of day, and other factors.

Semiannual report providing tabular statistical information about motor vehicle accidents that involved pedalcyclists in Texas during calendar year 1997, with data broken out by various criteria including number of persons, locations, types of accidents, time of day, and other factors.

Semiannual report providing tabular statistical information about motor vehicle accidents that involved pickup trucks in Texas during calendar year 1997, with data broken out by various criteria including number of persons, locations, types of accidents, time of day, and other factors.

Semiannual report providing tabular statistical information about motor vehicle accidents that happened at railroad crossings in Texas during calendar year 1997, with data broken out by various criteria including number of persons, locations, types of accidents, time of day, and other factors.

Semiannual report providing tabular statistical information about motor vehicle accidents that involved motorcycles in Texas during calendar year 1997, with data broken out by various criteria including number of persons, locations, types of accidents, time of day, and other factors.

Semiannual report providing tabular statistical information about motor vehicle accidents in rural areas of Texas during 1997, with data broken out by various criteria including number of persons, locations, types of accidents, time of day, and other factors.

Monthly report providing tabular statistical information about motor vehicle accidents in rural areas of Texas during 1997, with data broken out by various criteria including number of persons, locations, types of accidents, time of day, and other factors.

Semiannual report providing tabular statistical information about motor vehicle accidents in Texas during 1997, with data broken out by various criteria including number of persons, locations, types of accidents, time of day, and other factors.

Monthly report providing tabular statistical information about motor vehicle accidents in Texas during 1997, with data broken out by various criteria including number of persons, locations, types of accidents, time of day, and other factors.

Annual report providing tabular statistical information about motor vehicle accidents involving military drivers in Texas during 1997, with data broken out by various criteria including number of persons, locations, types of accidents, time of day, and other factors.

Semiannual report providing tabular statistical information about motor vehicle accidents that involved motorcycles in Texas during calendar year 1997, with data broken out by various criteria including number of persons, locations, types of accidents, time of day, and other factors.

Semiannual report providing tabular statistical information about motor vehicle accidents that involved trains in Texas during calendar year 1997, with data broken out by various criteria including number of persons, locations, types of accidents, time of day, and other factors.

Semiannual report providing tabular statistical information about motor vehicle accidents that involved tractor trailers in Texas during calendar year 1997, with data broken out by various criteria including number of persons, locations, types of accidents, time of day, and other factors.

Semiannual report providing tabular statistical information about motor vehicle accidents that involved trucks in Texas during calendar year 1997, with data broken out by various criteria including number of persons, locations, types of accidents, time of day, and other factors.

Semiannual report providing tabular statistical information about motor vehicle accidents that involved pedestrians in Texas during calendar year 1997, with data broken out by various criteria including number of persons, locations, types of accidents, time of day, and other factors.

Semiannual report providing tabular statistical information about motor vehicle accidents in Texas involving DWI (driving while impaired) during 1997, with data broken out by various criteria including number of persons, locations, types of accidents, time of day, and other factors.