EFFECTS OF NUCLEAR RADIATION ON QUARTZ CRYSTAL UNITS
Abstract
The effects of pulsed neutron radiation on the operating characteristics of quartz crystal units were studied. A system was set up for accurately measuring the transient frequency changes occurring in quartz crystals exposed to short-duration (5 microseconds) high-density radiation fields. A 20-microseconds portion of the crystal impedance meter output before, during, and after irradiation was photographed from the scope presentation. A fast neutron dose rate equivalent to 10 to the 15th power NV was obtained by bombarding a uranium target for 5 microseconds with a 14 mev electrons from a linear accelerator. The 90 crystal samples tested were mainly AT types ranging from 4 to 85 mc and 2 NT cuts at 50 and 300 kc, including natural and synthetic blanks and both metal- and glass-enclosed types. Tables of frequency measurements and graphical presentations of data for all types tested are included. Parallel-mode, metalcased AT cuts exhibited momentary frequency shifts, but were operating at or near normal frequency by end of test. Glass-enclosed parallel-mode AT cuts showed a resistance to radiation, though not entirely. Results on the NT cuts were inconclusive. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Sep 30, 1961
- Accession Number
- AD0268409
Entities
People
- Albert Fueyo
- Arnold Schlueter
- Arthur Donovan