http://hep.ucsb.edu/people/hnn/cdmsshield/cecilnim79.pdf

Improved predections of neutron detection efficiency for hydrocarbon scintillators from 1 MeV to about 300 MeV

We present design studies, results of test measurements, and Monte Carlo simulations which served as a basis for the realization of a large area neutron detector (LAND). It has a front area of 2m×2m and a depth of 1 m, and features a multilayer structure of passive converter and active scintillator material. The detector is subdivided in independently operating paddles which allow time-of-flight and position measurement. An energy resolution of ΔT n / T n =5.3% for a flight path of 15 m and an overall detection efficiency of ϵ ≈ 1 is anticipated for neutrons with T n ≈ 1 GeV. The operation of LAND at the SIS facility of GSI is described.

/pdf/a-large-area-detector-for-high-energy-neutrons-14pm0zq85f.pdf

A large area detector for high-energy neutrons

Neutron production from targets of Be, C, Mo, Cu, Ta and Au has been studied at the isochronous cyclotron at Louvain-la-Neuve. Neutron spectra were measured by the time of flight method. The yields of neutrons and gamma rays were also measured, and the greatest ratio of neutrons to gamma rays in the forward direction was found to occur with 50 MeV deuterons on a Be target. The angular distribution of neutrons from Be was measured at 16, 33 and 50 MeV, and neutron spectra were measured as a function of angle with 50 MeV deuterons on Be.

https://iopscience.iop.org/article/10.1088/0031-9155/20/2/005/pdf

J.S. Russ

Papers

Calibration of the neutron detection efficiency of a plastic scintillator, 1 to 200 MeV☆

Constant current regulator for fast recharging of high voltage energy storage capacitors