Accession Number:

ADA058366

Title:

Multi-Ray Ablation Sensor Development Program.

Descriptive Note:

Final rept. 2 Jun 75-15 Dec 76,

Corporate Author:

PROTOTYPE DEVELOPMENT ASSOCIATES INC SANTA ANA CALIF

Personal Author(s):

Report Date:

1977-04-01

Pagination or Media Count:

45.0

Abstract:

This report documents the design analyses and test results that were performed in the development of a Multi-Ray Ablation Sensor. The sensor was designed to measure nosetip ablation along nine individual rays with a single photon counting tube Digicon tube. The sensor measures ablation by measuring the change in gamma-ray activity of radioactive sources located in the nosetip. Nine CsI scintillators convert the incident gamma-rays into photons light which are coupled to the photon counting tube with flexible fiber optic light guides. The light guides are positioned on the Digicon tubes photocathode so that the photoelectrons generated by light guide photons are electrostatically focused to a corresponding diode on the anode end of the tube. The nine light guide images on the photocathode are focused, one-to-one, on a corresponding array of diodes. The photoelectrons are accelerated and focused with -15 kV and an electrostatic lens. The signal outputs from the diodes are amplified and shaped for imput into conventional reentry vehicle telemetry interface electronics.

Subject Categories:

  • Guided Missile Warheads and Fuzes
  • Nuclear Instrumentation

Distribution Statement:

APPROVED FOR PUBLIC RELEASE