The effective collimation ratio, L/D, of neutron radiography beams is measured using an empirical technique defined in ASTM E803. The method is based on examining a neutron radiography image and is unaffected by measurements and calculations based on the collimation system's physical dimensions. The values expressed in SI units should be considered standard.
Average 30% Cost Savings
100% Confidentiality Guarantee
Free, No-obligation Consultation
100% Customer Satisfaction
TRUSTED BY ENGINEERS FROM
ASTM E803 L/D Ratio of Neutron Radiography Beams
The effective collimation ratio, L/D, of neutron radiography beams is measured using an empirical technique defined in ASTM E803. The method is based on examining a neutron radiography image and is unaffected by measurements and calculations based on the collimation system's physical dimensions. The values expressed in SI units should be considered standard.
Scope:
The standard test method, L/D Ratio of Neutron Radiography Beams ASTM E803, is used to determine and periodically measure the actual collimation ratio. By using ASTM E803, neutron beamlines with cold or heat neutron spectrums are tested. For this test method, neutron pictures can be created on a radiographic film using a conversion screen described in Guide E748 or a CR screen with a neutron converter.
Procedure:
In the ASTM E803 test, the NU (no umbra) approach is used to determine the neutron beam L/D ratio by radiographing the NU device with the neutron beam to be measured and then evaluating the resulting image using one of three methods. The three methods are all dependent on determining the point at which the umbral shadow width reaches zero.
Specimen size
In ASTM E803, the NU device is used that consists of cadmium rods that are placed in V-grooves on the surface of an aluminum channel section that has been precisely cut.
Result
In ASTM E803, the specific image capture technique employed shall be reported, including the digitization process if film images are digitized, the calculation method(s), and the L/D ratio(s).
Conclusion:
The standard test method, L/D Ratio of Neutron Radiography Beams ASTM E803, is used to determine and periodically measure the actual collimation ratio.
ASTM E572 test method covers the analysis of stainless and alloy steels by Wavelength Dispersive X-ray Fluorescence Spectrometry (WDXRF). It provides rapid, multi-element determinations with sufficient accuracy to assure product quality.
The ASTM D2674 test is a standard test method for the analysis of sulfochromate etch solutions used in the surface preparation of aluminum. The ASTM D2674 standard specifies a method for determining the efficacy of an etchant used to prepare the surface of aluminum alloys for subsequent adhesive bonding.
An immunological method for quantization of Hevea Natural Rubber (HNRL) proteins using rabbit anti-HNRL serum. Rabbits immunized with HNRL proteins react to the majority of the proteins present, and their sera have the capability to detect most if not all the proteins in HNRL.
ASTM G65 measures the resistance of metallic materials to abrasion using the dry sand/rubber wheel apparatus. The quality, durability, and toughness of the sample are determined using this test. Metallic materials are ranked in their resistance to scratching abrasion under a controlled environment.
ASTM E2141 test methods provide accelerated aging and monitoring of the performance of time-dependent electrochromic devices (ECD) integrated in insulating glass units (IGU). This test helps to understand the relative serviceability of electrochromic glazings applied on ECD.
ASTM C724 test method is used in analyzing the quality and ease of maintenance of a ceramic decoration on architectural-type glass. This test method is useful in the acknowledgment of technical standards.
Send us a request
Process for testing
STEP 01
You share material and testing requirements with us
STEP 02
You ship your sample to us or arrange for us to pick it up.
STEP 03
We deliver the test report to your email.
Just share your testing requirements and leave the rest on us!
Free, no-obligation consultation
Guaranteed confidentiality
Quick turnaround time
Hassle-free process
Let us combine our capabilities to achieve success!!