E2V Technologies
CX1594
Deuterium Filled,
Hollow Anode, Five-Gap Ceramic Thyratron
The data to be read in conjunction with the Hydrogen
Thyratron Preamble.
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.
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.
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.
Modulator Service
Peak anode voltage (see note 1)
....
150
kV max
Peak forward anode current ......
10
kA max
Peak reverse anode current ....... 5
kA max
Average anode current
........ 3.0
A max
Crowbar Service
Peak anode voltage (see note 1)
....
125
kV max
Peak forward anode current ......
40
kA max
Peak reverse anode current ......
20
kA max
Conducted charge .........
18
C max
GENERAL
Electrical
Cathode (connected internally
to one end of heater)
........
oxide coated
Cathode heater voltage
........ 6.3
+ 0.3
V
7 0.0
Cathode heater current
.......
40
A
Reservoir heater voltage (see note 2) .... 5.0
V
Reservoir heater current .......
10
A
Tube heating time (minimum)
.....
15
min
Inter-electrode capacitances
(each gap) ...........
40
pF approx
Mechanical
Seated height
(flange to flange)
.
.
.
566.0 mm (22.283 inches) max
Clearance required
below flanges ...... 57.15 mm (2.250 inches) min
Overall diameter
(mounting flange)
.
.
.
152.4 mm (6.000 inches) nom
Net weight
........ 13 kg (29 pounds) approx
Mounting position (see note 3) .........
any
Tube connections
........... see outline
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 m
3/min (100 ft3/min), depending on the
mechanical layout, will be necessary to keep the tube operating
temperatures under the limits specified below.
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.
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:
ceramic, anode and grids ......
150
8C max
cathode flange and base
......
120
8C max
#
E2V Technologies Limited 2002
A1A-CX1594 Issue 2, October 2002
527/5640
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
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