Electric dissociation of negative hydrogen ions in cyclotrons and synchrocyclotrons

Journal Article · Mon Jan 01 04:00:00 EST 1962 · Nuclear Instruments and Methods

DOI:https://doi.org/10.1016/S0029-554X(62)80011-1· OSTI ID:4730696

Judd, D. L.

Energies are estimated, above which negative hydrogen ions can not be accelerated in cyclotrons and synchrocyclotrons, because of their dissociation by the electric field γv x B/c. Their use in sector-focusing constant-frequency cyclotrons of several hundred Mev intended as "meson factories'' would require magnetic fields lower than usual by at least a factor of two or three. However, this effect should not limit their use in the present generation of such machines of 20 to 80 Mev having B_max < 20 kG. The lower energy gain per turn in synchrocyclotrons leads to dissociation at somewhat lower energies. The limiting energy for any cyciotron can be approximated by the method described. The estimates are based on unpublished experimental results and approximate calculations of other workers. (auth)

• Research Organization: Univ. of California, Berkeley
• Sponsoring Organization: USDOE
• NSA Number: NSA-17-007360
• OSTI ID: 4730696
• Journal Information: Nuclear Instruments and Methods, Journal Name: Nuclear Instruments and Methods Journal Issue: C Vol. 18-19; ISSN 0029-554X
• Publisher: Elsevier
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

ANIONS
CYCLOTRONS
DECOMPOSITION
ELECTRIC FIELDS
ELECTRICITY
ENERGY
ENERGY RANGE
FABRICATION
FREQUENCY
HYDROGEN
ION BEAMS
LENSES
LOSSES
MAGNETIC FIELDS
MEASURED VALUES
MESONS
NUMERICALS
OPERATION
PHYSICS
SYNCHROTRONS
USES