E2V Technologies
CX1594 Deuterium Filled,
Hollow Anode, Five-Gap Ceramic Thyratron
The data to be read in conjunction with the Hydrogen
Thyratron Preamble.
Mechanical
Seated height
(flange to flange)
Clearance required
below flanges .
Overall diameter
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566.0 mm (22.283 inches) max
. 57.15 mm (2.250 inches) min
152.4 mm (6.000 inches) nom
ABRIDGED DATA
Hollow anode, deuterium filled, five-gap thyratron with ceramic
envelope, featuring high peak current, high rate of rise of
current, low jitter and voltage/current reversal.
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(mounting flange)
Net weight
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13 kg (29 pounds) approx
The patented hollow anode structure enables the tube to cope
with inverse voltage and current without consequent reduction
in its high voltage hold-off capability due to electrode damage.
Mounting position (see note 3) .
Tube connections
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any
. . . . .
see outline
A reservoir normally operated from a separate heater supply is
incorporated. The reservoir heater voltage can be adjusted to a
value consistent with anode voltage hold-off in order to achieve
the fastest rate of rise of current possible from the tube in the
circuit.
Cooling
For all applications, cooling by oil or coolant immersion is
desirable. Further information is contained in the relevant
section of the Preamble.
At and below 55 kV the CX1594 may be cooled by forced-air
directed mainly onto the base, and the ceramic envelope should
be maintained below the maximum rated temperature. An air
flow of at least 2.83 m3/min (100 ft3/min), depending on the
mechanical layout, will be necessary to keep the tube operating
temperatures under the limits specified below.
Modulator Service
Peak anode voltage (see note 1)
Peak forward anode current .
Peak reverse anode current .
Average anode current
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150
10
kV max
kA max
kA max
A max
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5
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3.0
In addition to 300 W of heater power, the tube dissipates from
100 W per ampere average anode current, rising to 300 W/A at
the highest rates of rise and fall of anode current.
Crowbar Service
Peak anode voltage (see note 1)
Peak forward anode current .
Peak reverse anode current .
Conducted charge .
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125
kV max
kA max
kA max
C max
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40
20
18
The cathode end of the tube must be cooled whenever heater
voltages are applied, since the cathode flange will reach a
temperature of 120 8C above ambient in the absence of cooling.
. . .
Envelope temperature:
GENERAL
Electrical
ceramic, anode and grids .
cathode flange and base
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150
120
8C max
8C max
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Cathode (connected internally
to one end of heater)
Cathode heater voltage
Cathode heater current
Reservoir heater voltage (see note 2) .
Reservoir heater current
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oxide coated
+ 0.3
6.3
V
7 0.0
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40
5.0
A
V
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10
15
A
min
Tube heating time (minimum)
Inter-electrode capacitances
(each gap) .
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40 pF approx
E2V Technologies Limited, Waterhouse Lane, Chelmsford, Essex CM1 2QU England Telephone: +44 (0)1245 493493 Facsimile: +44 (0)1245 492492
e-mail: enquiries@e2vtechnologies.com Internet: www.e2vtechnologies.com Holding Company: E2V Holdings Limited
E2V Technologies Inc. 4 Westchester Plaza, PO Box 1482, Elmsford, NY10523-1482 USA Telephone: (914) 592-6050 Facsimile: (914) 592-5148
e-mail: enquiries@e2vtechnologies.us
#E2V Technologies Limited 2002
A1A-CX1594 Issue 2, October 2002
527/5640