Accession Number : AD0695633

Title :   A RADIOACTIVE TRACER METHOD FOR THE INSPECTION OF THE DELAY ELEMENT IN M200 SERIES HAND GRENADE FUZES.

Descriptive Note : Technical rept.,

Corporate Author : PICATINNY ARSENAL DOVER N J FELTMAN RESEARCH LABS

Personal Author(s) : Semel,Stanley ; Gilford,Martin ; Helf,Samuel

Report Date : SEP 1969

Pagination or Media Count : 29

Abstract : Incorporation of a radioactive tracer within the delay composition provides a highly reliable method for the inspection of the delay column height in M200 series hand grenade fuzes. The resulting gamma-ray signal from each fuze gives a quantitative measure of total delay charge weight. Based on measurements with plant-size batches of delay composition, levels of radioactivity can be such to accommodate an inspection rate of two units per second, with a single inspection unit, without exceeding permissible external radiation dose levels. The inspection unit itself would consist of a simple, rugged, inexpensive scintillation-counter assembly. The radioactive tracer element need not be common to the delay composition ingredients but can be added to the mixture as a foreign material in ppm concentration. Thus a wide range of radiation half-lives and gamma-ray energies can be used. The radiological safety factors associated with the handling of bulk quantities of radioactive materials in an ammunition loading plant are discussed briefly. (Author)

Descriptors :   (*GRENADES, TIME DELAY FUZES), (*DELAY ELEMENTS(EXPLOSIVE), RELIABILITY), (*TEST METHODS, RADIOACTIVE ISOTOPES), LABELED SUBSTANCES, GAMMA EMISSION, GAMMA COUNTERS, COUNTING METHODS, BURNING RATE, RADIATION HAZARDS, SAFETY

Subject Categories : Test Facilities, Equipment and Methods
      Ammunition and Explosives

Distribution Statement : APPROVED FOR PUBLIC RELEASE