HIGH RESOLUTION NEUTRON TIME-OF-FLIGHT EXPERIMENTS USING THE HARWELL 15 Mev LINEAR ELECTRON ACCELERATOR

Journal Article · Mon Dec 01 04:00:00 EST 1958 · Nuclear Instr.

DOI:https://doi.org/10.1016/0369-643X(58)90081-1· OSTI ID:4278519

Firk, F W.K.; Reid, G W; Gallagher, J F

A technique is described for producing neutron pulses of 0.25 mu sec duration at 400 pps. The electron gun of the Harwell 15 Mev linear accelerator is pulsed from an external modulator during the period of the normal radio frequency pulse of 2 mu sec duration. Using timing channels of 0 2 mu sec duration and a flight path of 31.8 m a nominal resolution of 8 m mu sec m/sup -1/ is obtained. The neutron output during the 0.25 4mmsec pulse is approximately 60% of the output obtained when using the normal 2 mu sec electron pulse. Total cross section measurements using a bismuth sample demonstrate the improved resolution in the energy region of 10 to 20 kev. (auth)

• Research Organization: Atomic Energy Research Establishment, Harwell, Berks, Eng.
• NSA Number: NSA-13-009075
• OSTI ID: 4278519
• Journal Information: Nuclear Instr., Journal Name: Nuclear Instr. Vol. Vol: 3
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

BISMUTH
COINCIDENCE METHODS
CROSS SECTIONS
ELECTRON BEAMS
ENERGY RANGE
FREQUENCY
LINEAR ACCELERATORS
NEUTRON BEAMS
PARTICLE ACCELERATORS AND HIGH-VOLTAGE MACHINES
PLANNING
PRODUCTION
PULSES
RADIO WAVES
RESOLUTION
TIME OF FLIGHT METHOD
VELOCITY