Equipment for Triple Differential Neutron Cross Section Measurements (Physics)

这台设备将被用来进行一项被批准的实验，通过测量等质量核的高重数碰撞的中子的三重微分截面作为质量数和轰击能量的函数，来探测核状态方程(EOS)。计算表明，该实验能够以良好的灵敏度探测状态方程，中子集体流的测量将为带电粒子的塑料球和流线室测量提供补充信息。中子能量的动态范围从大约20 MeV到每核子动能的近3倍，这与塑料球测量的能量从大约40到200 MeV/核子形成了鲜明的对比。在如此大的能量动态范围内(同时在许多探测器中)探测中子的能力弥补了中子探测效率的降低。

This equipment will be used to carry out an approved experiment to probe the nuclear equation of state (EOS) by measuring triple-differential cross sections for neutrons from high-multiplicity collisions of equal-mass nuclei as a function of mass number and bombarding energy. Calculations indicate that this experiment can probe the EOS with good sensitivity, and measurement of collective flow of neutrons will provide information complementary to Plastic Ball and Streamer Chamber measurements of charged particles. The wide dynamic range of neutron energies from about 20 MeV to nearly three times the kinetic energy per nucleon of the projectile, is in marked contrast to the Plastic Ball measurements with energies from about 40 to 200 MeV/nucleon. The ability to detect neutrons over this wide dynamic range of energies (and in many detectors simultaneously) compensates for the reduced neutron detection efficiency.