Surface activation of Concorde by Be-7
Creators
Description
Activation analysis of two airframe components from the Concorde aircraft has identified the presence of Be-7, a nuclide found by other investigators that was deposited on the forward edge of the Long Duration Exposure Facility (LDEF) structure. The results of the Concorde analysis indicate that this phenomenon is very much a surface effect, and that the areal densities of the Be-7 are comparable to those found for LDEF. The collection of Be-7 by the aircraft must be greater than in the case of LDEF (since duration for which Concorde is accumulating the nuclide is shorter) and is of the order of 1.2 to 41 nuclei/sq cm(-)s(exp -1) depending upon assumptions made regarding the altitude at which collection becomes appreciable, and the efficiency of the process which removes the radionuclide
Additional details
Publishing Information
- Imprint Title
- LDEF: 69 Months in Space. First Post-Retrieval Symposium, Part 1
- Imprint Pagination
- 637 p.
- Journal Page Range
- p. 249-254.
- Report number
- N--92-23280
Conference
- Title
- 1. Long Duration Exposure Facility (LDEF) post-retrieval symposium.
- Dates
- 2-8 Jun 1991.
- Place
- Kissimmee, FL (United States).
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 24000828
- Subject category
- S54: ENVIRONMENTAL SCIENCES; S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY;
- Resource subtype / Literary indicator
- Conference
- Descriptors DEI
- ACTIVATION ANALYSIS; AIRCRAFT; ATMOSPHERIC CIRCULATION; BERYLLIUM 7; COSMIC RADIATION; MATERIALS; QUANTITY RATIO; RADIOACTIVITY; SURFACE CONTAMINATION; TEST FACILITIES
- Descriptors DEC
- BERYLLIUM ISOTOPES; BETA DECAY RADIOISOTOPES; CHEMICAL ANALYSIS; CONTAMINATION; DAYS LIVING RADIOISOTOPES; ELECTRON CAPTURE RADIOISOTOPES; EVEN-ODD NUCLEI; IONIZING RADIATIONS; ISOTOPES; LIGHT NUCLEI; NONDESTRUCTIVE ANALYSIS; NUCLEI; RADIATIONS; RADIOISOTOPES
Optional Information
- Secondary number(s)
- NASA-CP--3134-PT-1; L--17042-PT-1; NAS--1.55:3134-PT-1; CONF-9106256--.