Performance of an acousto-optic Bragg cell under ion microbeam irradiation
- Air Force Phillips lab., Kirtland AFB, NM (United States)
- Sandia National Labs., Albuquerque, NM (United States)
An acousto optic (AO) deflector composed of PbMoO{sub 4} was exposed to 4 MeV protons while operating under Bragg angle conditions. An ion beam in air of 1 mm width was directed normal to the crystal face and laser beam. Between exposures, the approximately 13 mm x 8.5 mm AO deflector was mechanically translated in two dimensions in front of the fixed ion beam. The AO diffraction efficiency was mapped and was observed to change as a function of ion beam location and dose rate. These effects are attributed to the induced change in the temperature distribution of the crystal, which changed the sonic velocity and refractive index. Similar effects were observed when the ion beam was directed at the acoustic transducer.
- Research Organization:
- Sandia National Labs., Albuquerque, NM (United States)
- Sponsoring Organization:
- USDOE Office of Energy Research, Washington, DC (United States); Defense Nuclear Agency, Washington, DC (United States)
- DOE Contract Number:
- AC04-94AL85000
- OSTI ID:
- 515617
- Report Number(s):
- SAND--97-1707C; CONF-961120--4; ON: DE97007165; CNN: DNA MIPR 96-2006
- Country of Publication:
- United States
- Language:
- English
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