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Range and straggling effects on CR-39/range-filter ion energy measurements

Conference ·
OSTI ID:5729062
 [1]; ;  [2]; ; ; ;  [3]
  1. POD Associates, Albuquerque, NM (United States)
  2. New Mexico Univ., Albuquerque, NM (United States)
  3. Sandia National Labs., Albuquerque, NM (United States)
+ Show Author Affiliations

The CR-39/range-filter technique measures ion energy by determining the maximum filter thickness which ions can penetrate. CR-39 located behind the filter records the ions. This method is used to measure peak voltage in pulsed power accelerators. We investigate range and straggling effects in this diagnostic by exposing it to 8 and 15 MeV protons for both Al and Ta filters. The range agreed with published values to better than +/{minus} 6%. The range straggling decreased for higher incident ion energy and higher atomic number, as expected, although there were differences up to a factor of 1.7 between the experimental values and predictions. The dependence of the track diameter distribution on ion energy enabled us to establish a signature which is characteristic of ions which penetrate a filter, via straggling. These results can be used to evaluate the errors present when this diagnostic is used to measure accelerator voltage.

Research Organization:
Sandia National Labs., Albuquerque, NM (United States)
Sponsoring Organization:
DOE; USDOE, Washington, DC (United States)
DOE Contract Number:
AC04-76DP00789
OSTI ID:
5729062
Report Number(s):
SAND-92-0124C; CONF-920362--4; ON: DE92010826
Country of Publication:
United States
Language:
English

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Related Subjects

43 PARTICLE ACCELERATORS
430303 -- Particle Accelerators-- Experimental Facilities & Equipment
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700411* -- Inertial Confinement Devices-- (1992-)
ACCELERATORS
ALUMINIUM
BEAM MONITORING
BEAMS
CURRENTS
DETECTION
DIAGNOSTIC TECHNIQUES
ELECTRIC CURRENTS
ELECTRIC POTENTIAL
ELEMENTS
ENERGY LOSSES
FILTERS
ION BEAMS
LEAKAGE CURRENT
LOSSES
METALS
MONITORING
NUCLEON BEAMS
PARTICLE BEAM FUSION ACCELERATOR
PARTICLE BEAMS
PROTON BEAMS
RANGE
TANTALUM
TRANSITION ELEMENTS