ASTM E545-14 Image Quality in Neutron by Radiographic Examination
ASTM E545 involves the use of an Image Quality Indicator (IQI) system to measure the relative quality of radiographic pictures produced by direct, thermal neutron radiography. The values stated in SI should be considered as standard.
Scope:
ASTM E545-14 test method is intended to provide quantitative data on neutron beam and image system parameters that affect film exposure and, as a result, overall image quality. It can be used to check the neutron radiography quality on a day-to-day basis.
Procedure:
In ASTM E545, the evaluation of pictures obtained from indicators that are exposed along with the test object is used to judge the quality of a neutron radiograph. In circumstances when the film size is limited or the object size is large, the indicators may be exposed on another film immediately before or after the test object is exposed under the same conditions.
Specimen size:
The optical density of background film should be in the range from 2.0 to 3.0 across the film and does not vary more than ±5%.
Calculation:
The effective pair production can be calculated by using the following equation:
P = (∆DL/DH) × 100
Talk to Our Experts Today!
Submit your contact info and we’ll get back to you within 24 hours
Full Spectrum of ASTM Material Testing — Backed by 2,000+ Trusted Lab Partners
ASTM standards for chemical composition, physical properties, failure analysis, and other routine and non-routine testing for polymers and plastics
ASTM standards for determination of mechanical, physical, and thermal properties, and performance of monolithic and composite ceramics
ASTM standards guiding various destructive, non-destructive and analytical tests for quality control of different metals and alloys
ASTM standards for chemical analysis of solid, liquid and gaseous materials for specification compliance and quality control
ASTM standards for various chemical, physical, stability and exposure analysis of paints and coatings
Our Services
Metrology
A variety of microscopy and spectroscopy tools available for precise measurements from the nano to the meter scale.
Learn More
Materials Testing
ASTM and ISO standard and custom chemical, mechanical, thermal, corrosion tests, etc. for all materials metals, ceramic or polymers.
Learn More
Product Testing
Thousands of tests for product quality and reliability under heat, humidity, temperature shock, vibration, drop, electrostatic discharge.
Learn More
