Stopping of Havar, nickel, Kapton, and Mylar for 5--19-MeV /sup 16/O ions
In order to determine stopping-power values the energy losses of 5.2--22.5-MeV /sup 16/O/sup n//sup +/ ions in 2.0-..mu..m Havar, 2.8-..mu..m nickel, 10.5-..mu..m Kapton, and 3.8- and 6.9-..mu..m aluminum-layered (40-nm Al) Mylar foils were measured in transmission geometry. Proton energy loss in a backscattering experiment was taken as a measure of film thickness. The measured stopping-power and energy-loss data were compared with calculated predictions obtained by using Bragg's additivity rule and the Andersen-Ziegler parameters for proton stopping with appropriate scaling for oxygen ions and with experimental values available in the literature. The results for the foils of medium atomic number, Havar and nickel, were found to be similar to calculated values; however, the experimental stopping powers lie 2--4 % above the predicted values between 6 and 14 MeV for the light composite Mylar and Kapton foils. The response of silicon surface-barrier detectors to /sup 16/O ions was studied in the energy interval 1.5--19 MeV. A distinct nonlinearity was observed at low ion energies.
- Research Organization:
- Accelerator Laboratory, University of Helsinki, Haemeentie 100, SF-00550 Helsinki 55, Finland
- OSTI ID:
- 5640824
- Journal Information:
- Phys. Rev. B: Condens. Matter; (United States), Journal Name: Phys. Rev. B: Condens. Matter; (United States) Vol. 36:18; ISSN PRBMD
- Country of Publication:
- United States
- Language:
- English
Similar Records
Stopping powers and energy loss of Mylar, Kapton, Havar, and Ni for 10 Z =3--17 ions in the energy range 0. 2--2. 1 MeV/amu
Recommended Bethe--Bloch stopping power parameters for Kapton and Havar
Related Subjects
Shielding Calculations & Experiments
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ACCELERATORS
ALLOYS
BACKSCATTERING
BERYLLIUM ALLOYS
CARBON ADDITIONS
CHARGED PARTICLES
CHARGED-PARTICLE TRANSPORT
CHROMIUM ALLOYS
CHROMIUM BASE ALLOYS
ELECTROSTATIC ACCELERATORS
ELEMENTS
ENERGY LOSSES
ENERGY RANGE
ESTERS
EVEN-EVEN NUCLEI
HAVAR
IONS
IRON ALLOYS
ISOTOPES
LIGHT NUCLEI
LOSSES
MANGANESE ALLOYS
MATERIALS
METALS
MEV RANGE
MEV RANGE 01-10
MEV RANGE 10-100
MOLYBDENUM ALLOYS
MYLAR
NICKEL
NICKEL ALLOYS
NONLINEAR PROBLEMS
NUCLEI
ORGANIC COMPOUNDS
ORGANIC POLYMERS
OXYGEN 16
OXYGEN IONS
OXYGEN ISOTOPES
PETROCHEMICALS
PETROLEUM PRODUCTS
PLASTICS
POLYESTERS
POLYMERS
RADIATION TRANSPORT
SCATTERING
STABLE ISOTOPES
STOPPING POWER
SYNTHETIC MATERIALS
TRANSITION ELEMENTS
TUNGSTEN ALLOYS
VAN DE GRAAFF ACCELERATORS