The reaction energies of Ne21(d,α)F19 and Ne21(d,p)Ne22 from magnetic analysis
- Creators
- Mileikowsky, Curt
- Whaling, Ward
Abstract
Separated isotopic targets of Ne21, which were produced at the Nobel Institute of Physics, have been used to measure the Q-values of the reactions (1) Ne21(d,α)F19, and (2) Ne21(d,p)Ne22. A double focusing magnetic spectrograph was used to compare the energy of the protons and alpha-particles from these reactions with the alpha-particles from ThC and ThC′. The angle of observation and the deuteron bombarding energy were chosen so that the particles being studied and the alpha-line used for energy calibration lay nearly side by side on the photographic plate used as a detector. The Q-values measured are 6.432±0.010 MeV for reaction (1) and 8.137±0.011 Mev for reaction (2). From these Q-values and the mass of F19 the atomic masses of Ne21 and Ne22 are obtained. Other alpha-groups from reaction (1) correspond to transitions to states in F19 at 0.113±0.008 Mev and 0.192±0.012 Mev above the ground state. Additional particle groups from N and Na contamination on the targets have been observed: The Q-values measured are 8.613±0.011 Mev for N14(d,p)N15 and 4.723±0.008 for Na23(d,p)Na24.
Additional Information
©1952 The American Physical Society. Received 15 August 1952. We are grateful to Civ. Ing. S. Thulin, Nobel Institute of Physics, for preparing the targets, to Professor W.W. Buechner for valuable advice on his experience with neon targets, and to Mr. H.H. Woodbury of this laboratory for assistance in exposing the plates. [C.M. was] [a]ssisted by the joint program of the ONR and the AEC and by the Swedish Atomic Committee.Files
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Additional details
- Eprint ID
- 6693
- Resolver ID
- CaltechAUTHORS:MILpr52
- Created
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2006-12-18Created from EPrint's datestamp field
- Updated
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2021-11-08Created from EPrint's last_modified field