HY-2 PERKINELMER | Alldatasheet

Document overview

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Technical content

Features

  • Wide operating voltage range
  • High pulse rate capability
  • Ceramic-metal construction
  • High current capability
  • Long life Thyratrons Lighting Imaging Telecom High Energy Switches

epy (kV) Peak Anode Current ib (a) 100 350 350 350 500 1600 500 1000 1000 1500 1500 5000 5000 5000 5000 5000 5000 5000 5000 5000 5000 12000 12000 15000 15000 20000 20000 20000 20000 20000 Average Anode Current lb (Adc) 0.1 0.5 0.5 0.5 0.5 0.5 0.5 0.5 2.2 2.2 2.2 2.2 2.2 2.2 2.2 2.2 2.2 0.5 RMS Anode Current lp (Aac) 6.5 6.5 6.5 47.5 47.5 47.5 47.5 47.5 47.5 47.5 47.5 47.5 125 47.5 Plate Dissipa- tion Factor Pb (x 109) 2.7 160 100 100 100 100 100 200 Cathode Heater V/A 6.3/3.5 6.3/7 6.3/7 6.3/8.5 6.3/7.5 6.3/7.5 6.3/11 6.3/7.5 6.3/12.5 6.3/18 6.3/18 6.3/12.5 6.3/12.5 6.3/12.5 6.3/12.5 6.3/12.5 6.3/12.5 6.3/12.5 6.3/30 6.3/30 6.3/18 6.3/28 6.3/28 6.3/16 6.3/16 6.3/18 6.3/29 6.3/35 6.3/29 6.3/29 Reser- voir Heater V/A Note 1 6.3/2.5 6.3/7 Note 1 6.3/4 6.3/4 Note 1 6.3/8 6.3/5.5 6.3/5.5 6.3/6 6.3/5.5 6.3/5.5 6.3/5.5 6.3/5.5 6.3/5.5 6.3/5.5 6.3/5.5 4.5/11 4.5/11 6.3/6 6.3/6 6.3/6 6.3/6 6.3/6 6.3/13 4.5/10 4.5/15 4.5/10 4.5/10 Peak Forward Grid Voltage egy (Min) 175 150 150 150 200 200 175 1500 450 450 500 500 500 500 500 500 500 1300 1300 500 500 500 500 450 500 2500 2500 2500 2500 Impe- dence of Grid Circuits g (Max) 1200 1500 1500 1500 500 500 500 500 250 400 400 400 400 400 400 400 250 250 100 100 250 250 250 250 400 250 100 EIA Type & Comments JAN 7621 JAN 7782 JAN 7665A JAN 7620 JAN8613 ib to 10kA @ <1usec JAN 7322 8614 Two gap tetrode Two gap tetrode Notes 3,6 3.5,6 3,6 2,6 3,6 3,5,6 Seated Height x Tube Width (Inches) 2.35 x 1.0 2 x 1.4 2.4 x 1.4 3.6 x 1.4 3.4 x 2 2.2 x 2.25 5 x 2 2 x 2 3.75 x 3.25 4 x 3.25 3 x 6 4 x 3.25 4 x 3.25 4 x 3.25 4.75 x 3.25 4.75 x 3.25 4.25 x 3.25 3.75 x 3 5 x 4.5 5 x 4.5 5.25 x 3 8 x 3.5 8.25 x 3.5 5.75 x 3 6.4 x 3 6.4 x 3 6.75 x 4.5 9.5 x 4.5 6.75 x 4.5 7.2 x 4.5 1. Cathode and reservoir heater internally connected 2. Grounded grid design 3. Auxiliary grid design 4. MT-4 mount required 5. Liquid cooling design 6. Hollow anode design for reverse current PerkinElmer thyratron control grid driver TM-27 recommended for use with all thyratrons up to 3 inch diameter. TM-29 recommende d for thyratrons greater than 3 inch diameter. The selections above are a representative sample of hundreds of design variations available. Contact PerkinElmer for support fo r any specific application. Notes

TERMS USED TO CHARACTERIZE INDIVIDUAL PULSES Peak Anode Voltage (epy): maximum positive anode voltage, with respect to the cathode. Peak Inverse Anode Voltage (epx): maximum negative anode voltage, with respect to the cathode. Peak Forward Anode Current (ib): maximum instantaneous positive anode current. Peak Inverse Current (Ibx): maximum instantaneous negative anode current. Pulse Width (tp): current pulse full-width at half-maximum. Pulse Repetition Rate (prr): average number of pulses/second. Current Rise Time (tr): time for the forward current to rise from 10% to 90% of its peak value. Anode Fall Time: time for the forward anode voltage to collapse from 90% to 10% of its maximum value. Anode Delay Time (tad): time interval between triggering and commutation (commutation is defined below). The precise reference points for this interval vary with the application. Anode Delay Time Drift (∆tad): gradual decrease in anode delay time that occurs as the thyratron warms up. Jitter (tj): pulse-to-pulse variation in anode delay time. TIME AVERAGED QUANTITIES DC Average Current (Ib): forward current averaged over one second. RMS Average Current (Ip): root-mean-square current averaged over one second. Plate Breakdown Factor (Pb): numerical factor proportional to the power dissipated at the anode, averaged over one second. Pb = epy x ib x prr. STRUCTURAL PARTS OF THE THYRATRON Auxiliary Grid: grid placed between the control grid and cathode in some thyratrons. A small DC current (or a larger pulsed current) applied between Auxiliary Grid and cathode can be used to control the anode delay time. (Anode delay time is defined above). Thyratrons with auxiliary girds are called Tetrode Thyratrons. Reservoir: maintains the gas pressure in the tube at a level which depends on the reservoir heater voltage. GENERAL TERMINOLOGY Static (Self) Breakdown Voltage (SBV): applied voltage at which a thyratron will break down spontaneously, without being triggered. Commutation: transition from trigger breakdown to full closure of the thyratron. Recovery Time: time which must elapse after decay of the circuit current before anode voltage can be reapplied to the thyratron without causing self-breakdown. The maximum possible pulse repetition rate is the inverse of the recovery time. Grid Bias: negative DC voltage which may be applied to the control grid to speed up recovery.

www.perkinelmer.com/opto © 2001 PerkinElmer, Inc. All rights reserved. USA: PerkinElmer Optoelectronics

35 Congress Street

Salem, MA 01970 Toll Free: (800) 950-3441 (USA) Phone: (978) 745-3200 Fax: (978) 745-0894 For more information email us at opto@perkinelmer.com or visit our web site at www.perkinelmer.com/opto Note: All specifications subject to change without notice. PerkinElmer welcomes inquiries about special types. We would be pleased to discuss the requirements of your application and the feasibility of designing a type specifically suited to your needs. Marking PerkinElmer’s trademark, part designation, and date code. DS-247 Rev A 0901