cyclotron


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cyclotron:

see particle acceleratorparticle accelerator,
apparatus used in nuclear physics to produce beams of energetic charged particles and to direct them against various targets. Such machines, popularly called atom smashers, are needed to observe objects as small as the atomic nucleus in studies of its
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.

Cyclotron

 

a resonance particle accelerator in which the magnetic guide field and the frequency of the accelerating electric field are constant in time. The particles, which may be protons or heavier ions, move in an uncoiled spiral. The highest possible energy of protons accelerated in a cyclotron is about 20 million electron volts and may reach 1 billion electron volts in an isochronous cyclotron. (SeeACCELERATOR, PARTICLE.)

cyclotron

[′sī·klə‚trän]
(nucleonics)
An accelerator in which charged particles are successively accelerated by a constant-frequency alternating electric field that is synchronized with movement of the particles on spiral paths in a constant magnetic field normal to their path. Also known as phasotron.

cyclotron

a type of particle accelerator in which the particles spiral inside two D-shaped hollow metal electrodes placed facing each other under the effect of a strong vertical magnetic field, gaining energy by a high-frequency voltage applied between these electrodes
References in periodicals archive ?
If the cyclotron line is a result of circling protons then the magnetic field strength would be extremely high amongst the highest field strengths detected for neutron stars.
The centre recently opened to receive referrals for conventional treatments and following this morning's successful arrival of the proton beam cyclotron, we will begin installation.
Our cyclotron and radiopharmacy expands our research capacity, and will eliminate our hospital's dependence upon outside sources of radioactive isotopes used for specific diagnostic imaging procedures.
In a statement, the University of Birmingham said: "The cyclotron facility at the University of Birmingham produces radioactive material which is used for the diagnosis of disease in hospitals around the country.
The future of the cyclotron is in the hands of the board of trustees.
The teams at MPI Research, InviCRO, and 3D Imaging have come together to set records for conception, construction and installation of a cyclotron facility," added Marc Berridge, Ph.
expansion, the cyclotron stopper was the main feature in the company's $1.
Located near Cardinal's nuclear pharmacy in Augusta, the cyclotron will aid in the production of positron emission tomography (PET) agents.
The now radioactive liquid travels through shielded, concrete-reinforced underground conduits from the cyclotron to an adjacent "hot cell," a heavily shielded version of a typical laboratory fume hood.
Using an instrument called the Berkeley Gas-filled Separator (BGS) at Berkeley Lab's 88-Inch Cyclotron, the researchers were able to confirm the creation of two individual nuclei of element 114, each a separate isotope having 114 protons but different numbers of neutrons, and each decaying by a separate pathway.
It is shown that in the case of pulse modulated field along with the RF helicon waves the transient cyclotron frequency oscillations exist in the semiconductor plasma.
The concrete was used as shielding material for a small cyclotron in a PET imaging facility that is now under construction in Nagano City.