Quantized Hyperfine Field at an Implanted<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msup><mml:mi>μ</mml:mi><mml:mo>+</mml:mo></mml:msup></mml:math>Site in<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msub><mml:mi>PrPb</mml:mi><mml:mn>3</mml:mn></mml:msub></mml:math>: Interplay between Localized<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>f</mml:mi></mml:math>Electrons and an Interstitial Charged Particle