Direct evidence for enhanced transient fields on fast /sup 56/Fe ions recoiling through thin iron

Journal Article · Wed Dec 01 04:00:00 EST 1976 · Phys. Rev., C; (United States)

DOI:https://doi.org/10.1103/PhysRevC.14.2119· OSTI ID:7331788

Hass, M; Brennan, J M; King, H T; Saylor, T K; Kalish, R

Results of ion-implantation perturbed-angular-correlation measurements on /sup 56/Fe ions recoiling through magnetized Fe at high recoil energy (E/sub R/ approx. = 56 MeV) are reported. Angular shifts were measured using targets of various thicknesses for which the excited nuclei either stopped in or recoiled out of the iron. The results clearly establish the existence of enhanced transient fields acting on fast recoiling ions leaving the magnetized Fe foil and stopping in Cu. In such measurements the contributions from the static field and from the normal Lindhardt-Winther field are eliminated. The possible use of this technique for measurements of magnetic moments of short-lived states is discussed. An experiment in which the /sup 56/Fe ions recoiled into vacuum through the polarized foil was also carried out. In this case a strong attenuation of the angular correlation was observed; however, no excessive precession was seen, as would be observable if polarized hf fields persisted in vacuum for a substantial part of the nuclear lifetime. (AIP)

• Research Organization: Department of Physics, Rutgers University, New Brunswick, New Jersey 08903
• OSTI ID: 7331788
• Journal Information: Phys. Rev., C; (United States), Journal Name: Phys. Rev., C; (United States) Vol. 14:6; ISSN PRVCA
• Country of Publication: United States
• Language: English

Related Subjects

651524* -- Nuclear Properties & Reactions
A=39-58
Experimental-- Moments & Spin-- (-1987)
651525 -- Nuclear Properties & Reactions
A=39-58
Experimental-- Nuclear Reactions & Scattering-- (-1987)
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ANGULAR CORRELATION
ANGULAR MOMENTUM
CHARGED-PARTICLE REACTIONS
CORRELATIONS
ENERGY LEVELS
ENERGY RANGE
EVEN-EVEN NUCLEI
EXCITED STATES
HEAVY ION REACTIONS
INELASTIC SCATTERING
INTERMEDIATE MASS NUCLEI
ION IMPLANTATION
IRON 56
IRON 56 TARGET
IRON ISOTOPES
ISOTOPES
MAGNETIC FIELDS
MAGNETIC MOMENTS
MEV RANGE
MEV RANGE 10-100
NUCLEAR REACTIONS
NUCLEI
PARITY
PARTICLE PROPERTIES
POLARIZED TARGETS
RECOILS
SCATTERING
SPIN
STABLE ISOTOPES
SULFUR 32 REACTIONS
TARGETS