Stopping-power measurements of 20-180 keV /sup 1/H and /sup 4/He in indium phosphide using thick-target backscattering

Thesis/Dissertation · Tue Dec 31 23:00:00 EST 1985

OSTI ID:5327451

Lee, S R

The stopping power of InP for 20-180 keV /sup 1/H and /sup 4/He was determined by measuring the absolute backscattering yield of thick InP targets. Several nonideal aspects of surface-barrier detectors were observed which should be accounted for when making low- to medium-energy backscattering-yield measurements. These are: non-Gaussian detector resolution, nonlinear detector energy calibration, and ion reflection in the detector Au window. The present /sup 1/H in InP stopping-cross-section measurements are in good agreement with those recently obtained by Khodyrev et al. using a relative, bulk yield, single-spectrum approach. The /sup 4/He in InP stopping cross section measurements were found to be velocity proportional below 30 keV/amu. The estimated standard error of the measurements is +/- 7% at 20 keV and +/- 4% at 180 keV.

• Research Organization: Texas A and M Univ., College Station (USA)
• OSTI ID: 5327451
• Country of Publication: United States
• Language: English

Related Subjects

440101 -- Radiation Instrumentation-- General Detectors or Monitors & Radiometric Instruments
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
654001* -- Radiation & Shielding Physics-- Radiation Physics
Shielding Calculations & Experiments
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ALPHA PARTICLES
BACKSCATTERING
BARYONS
CHARGED PARTICLES
CORRECTIONS
CROSS SECTIONS
ELEMENTARY PARTICLES
ENERGY RANGE
FERMIONS
HADRONS
INDIUM COMPOUNDS
INDIUM PHOSPHIDES
KEV RANGE
KEV RANGE 10-100
KEV RANGE 100-1000
MEASURING INSTRUMENTS
NUCLEONS
PHOSPHIDES
PHOSPHORUS COMPOUNDS
PNICTIDES
PROTONS
RADIATION DETECTORS
SCATTERING
SEMICONDUCTOR DETECTORS
STOPPING POWER
SURFACE BARRIER DETECTORS