Radiation induced noise signals in diagnostic cabling on the advanced test accelerator
During the operation of the Advanced Test Accelerator (ATA) large radiation induced noise signals have been observed on the cables coming from beam current monitors and photomultiplier tubes in those areas of the beamline where beam current is lost. These signals are caused by Compton and pair production electrons produced by x-rays striking the coaxial cables. The induced signal is negative and ranges up to 5 volts in magnitude. The susceptibility of several different cable types and dielectrics has been experimentally investigated. Measurements of induced signal versus cable type and dose rate are given. These noise signals have been successfully eliminated by differencing out the radiation pickup. This technique will be discussed, and recommendations for cable shielding and routing, as well a choice of cable types to be used in high intensity radiation environments will be given.
- Research Organization:
- Lawrence Livermore National Lab., CA (USA)
- DOE Contract Number:
- W-7405-ENG-48
- OSTI ID:
- 5330837
- Report Number(s):
- UCRL-93756; CONF-860665-17; ON: DE86015483
- Country of Publication:
- United States
- Language:
- English
Similar Records
Noise signals and carrier modulation arising in electrical cables during nuclear pulse irradiation
Investigation of cables for ionization chambers
Related Subjects
430300* -- Particle Accelerators-- Auxiliaries & Components
ACCELERATORS
BASIC INTERACTIONS
BEAM MONITORS
CABLES
COMPTON EFFECT
CONDUCTOR DEVICES
ELASTIC SCATTERING
ELECTRIC CABLES
ELECTRICAL EQUIPMENT
ELECTROMAGNETIC INTERACTIONS
ELECTROMAGNETIC RADIATION
ELECTRONS
ELEMENTARY PARTICLES
EQUIPMENT
FERMIONS
INTERACTIONS
IONIZING RADIATIONS
LEPTONS
MEASURING INSTRUMENTS
MONITORS
NOISE
PAIR PRODUCTION
PHOTOMULTIPLIERS
PHOTOTUBES
RADIATIONS
SCATTERING
X RADIATION