BEVATRON RESEARCH MEETING IV - BEVATRON TARGETS AND PROBES Page: 1 of 3
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SIJULFA MEETING IV - BEVATRON E3EARCH CONFEWNOB
October 27, 1953
4 P1i bldg. 50 Auditorium
Warren Chupps Bevatron Targets and Probes
General. DScrito Begm foitoring Equiplgn
Tangent Tank Allocations
East Tangent Tank --The east tangent tank ill house the inflector and one
beam probe required for tune up. The inflector will be provided with two
flip targets placed at the entrance and exit ends of the inflector. These
targets can remain in place at all times except during actual beam injec-
tion. Their use will be confined to monitoring the over all performance
of the injector and inflector equipment. A probe will be located on the
inside radius at the transition tank immediately following the inflec tor.
Vertical aperture defining plates ill be located at the north entrance
to the east tangent tank.
North Tayont Tank -- Almost the entire volume of the north tangent tank
will be utilisod by the accelerator electrodes. Two probes will be
located in the transition sections, one on the inner radius at the west
side and another on the outside radius at the east side. Neither of these
probes can be removed without loss of vacuum. They will be adjustable
in radius and each ill sweep slightly more than half of the aperture
radius in the tank.
West Tangent Tank -- The most tangent tank has been allocated as the main
target area, Air locks ill be provided at the north side of the vast
tangent tank at inner and outer radius points. These uilJl permit install-
ation of targets ithout loss of vacuum and villa provide a maximum volume
of 12" x 6" x 6'r. Larger air looks may be provided in the future as the
South Tangent Tank -- The east end of the south tangent tank rill house
the induction electrodes which gill be used for boam tracking. These will
occupy approximately 8-feet of the 20-foot space. The west side of this
tangent tank will be provided with air locks (as above) at inner and outer
an_ Comments -- The targets and probes vill be introduced 6-inches below the
median plate so that adequate mechanical support can be effectively utilized with-
out reducing the aperture. Probe heads will be of such configuration as to allow
monitoring of any desired vertical strip of the aperture. It is probable that some
space will be available in the quadrants after first performance tests have been
on the machine. No targets or probes will be located in that 1-foot x 4-foot
aperture initially. Provision mill be made for driving the inner radius targets on
the vcst tangent tank into the aperture during acceleration. The drive mechanism
vill locate the target withinn an adjustable radius) in 1/2 a second.
Basic Probe Heads -- Throo typos of probo heads will bo provided. Those include a
direct monitoring; a phosphor flag. and a light pipo probo.
(1) firoot Monitoring Frobo -- This will be provided with a cathode
follower mounted at the electrode in the tank. This vill be designed to
deliver approximately 1 millivolt to the transmission line for 10-9
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Chupp, Warren. BEVATRON RESEARCH MEETING IV - BEVATRON TARGETS AND PROBES, report, October 27, 1953; Berkeley, California. (digital.library.unt.edu/ark:/67531/metadc1014904/m1/1/: accessed January 22, 2019), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.