{"project":{"acronym":"CT IQI","projectId":88194,"title":"X-ray Computed Tomography Image Quality Indicator (IQI) Development","primaryTaxonomyNodes":[{"taxonomyNodeId":10884,"taxonomyRootId":8816,"parentNodeId":10879,"level":3,"code":"TX12.4.5","title":"Nondestructive Evaluation and Sensors","definition":"Non-destructive devices and nanodevices deployment and embedding rapidly and autonomously interrogate large structure areas, understand as-build conditions, accurately characterize structural integrity and environment, and detect and assess anomalies.","exampleTechnologies":"Special focus on increased sensitivity and selectivity, with reduced mass, power consumption and a smaller overall footprint; includes sensors, sensor networks, processing software for data reduction and damage location and life prediction","hasChildren":false,"hasInteriorContent":true}],"startTrl":2,"currentTrl":3,"endTrl":4,"benefits":"
These CT inspection tools will benefit all NASA centers with x-ray CT capabilities or x-ray CT inspection needs, as well as industry CT users. The benefit is the ability to use one common tool to assess system performance for a particular class of materials (such as plastics, aluminum, or titanium). The IQIs will be used to assess CT detectability limits, contrast sensitivity, and resolution. If additive manufacturing (AM) is utilized to generate the IQIs, a dual purpose, or secondary benefit to these IQIs is that the CT system may be used to ascertain AM material build defects and limitations.
","description":"The intent of this project is to identify suitable x-ray Computed Tomography (CT) Image Quality Indicator (IQI) designs that can be used to adequately capture CT system performance. Customary IQI devices for 2D radiography are typically flat, and since the CT system implements geometric reconstruction using up to 360 degrees of incident angles, flat objects offer an unrealistic basis for a standard (unless the inspected part is of similar geometry). While some CT IQIs are commercially available (most geared for military or medical use), none are widely or universally accepted as standard. We aim to develop radially-symmetric IQIs, more consistent with NASA-related materials and inspection methods, that serve multiple purposes related to system performance evaluation.
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PURPOSE
The Nondestructive Evaluation Program is established to provide a forum for Agencywide cooperation to improve the effectiveness of communication and coordination in the NASA NDE community, promote technical integration, improve customer interfaces, and optimize the use of resources. The NDE Progam will be under the sponsorship of the Office of Safety and Mission Assurance (Code Q) and will provide advice and assistance to the Agency in the areas of nondestructive evaluation, inspection, and testing (NDE/NDI/NDT).
FUNCTIONS
The functions of the NDE Progam shall be as follows:
1. Provide for Agencywide focus and a forum for the integration of major NDE program needs. The NDE Progam shall address the total Agencywide NDE program, including definitions and standard practices, NDE documentation requirements, operating practices, and new technology initiatives.
2. Promote improvements in communication and cooperation throughout the NASA community by sponsoring meetings, workshops, and other technical interchanges. Facilitate rapid Agencywide information exchanges through the use of newsletters, electronic information, and an NDE directory. Encourage intercenter and intracenter cooperative programs coupled with external
organizations and technical societies through Memoranda of Understanding.
3. Promote productivity and efficiency through sharing experiences, procedures, techniques, resources, and efforts directed towards technology implementation.
4. Foster partnerships between Program Offices, Engineering, Quality Assurance, and the NASA NDE Community.
5. Provide an Agencywide forum for the sharing of NDE technology including technology transfer within NASA and to other government agencies. Provide an interface with U.S. universities and industry, and the international NDE community.
6. Support the premise that accurate and reliable NDE measurements are fundamental to the advancement of NASA’s scientific and engineering programs.
MEMBERSHIP
1. The NASA Directors of Field Installation shall designate, in writing, to the Code Q Associate Administrator, their initial selections of members for the NDE Progam. Subsequent changes in designations of members to the NDE Progam shall be furnished to the Chairperson.
2. The Chairperson shall maintain a current list of members and disseminate it at least annually to the NDE Progam membership.
3. The delegated NDE Program Manager shall serve as the Headquarters advocate for NDE.
4. All persons designated as members of the NDE Progam shall meet the following qualifications:
a. Knowledgeable of or associated with the NDE activities of their Installation.
b. Authorized by their office or installation to report on the NDE activities and views and to state the opinions of that office or installation on issues discussed.
c. Authorized to represent NASA Headquarters or a Field Installation.
5. Recognizing the value of contractor participation, all members of the NDE Progam are encouraged to invite their contractors to participate in NDE Progam meetings, as appropriate.
MANAGEMENT
1. The Chairperson shall be selected by the membership for a 1-year term, and the appointment shall be confirmed by the delegated NDE Program Manager. The chairperson shall be responsible for the conduct of all NDE Progam activities. This includes calling and conducting all meetings, representing the NDE Progam to the delegated NDE Program Manager, coordinating all NASA NDE Progam activities, representing the NDE Progam at other Agency and organization meetings, and coordinating the establishment of committees and monitoring their progress.
2. The Vice-Chairperson shall be selected by the membership for a 1-year term, and the appointment shall be confirmed by the delegated NDE Program Manager.
The Vice-Chairperson shall be the custodian of the NDE Progam’s plans and procedures documents, represent the NDE Progam at other Agency and organization meetings, and perform other duties as assigned by the Chairperson.
The Vice-Chairperson shall assume the position of NDE Progam Chairperson at the completion of the 1-year term, with the approval of the voting members.
3. The Workshop Coordinator shall be appointed by the Chairperson from the membership for a 1-year term. The Workshop Coordinator shall host the annual meeting and distribute the Workshop Proceedings to the NDE Progam.
4. On issues where a consensus cannot be reached, the Chairperson may call for a vote. A simple majority vote shall rule.
COMMITTEES
1. Standing Committees
a. The NDE Progam is authorized to establish standing committees as necessary to conduct the ongoing activities of the NDE Progam.
b. Members of standing committees shall be selected by the Chairperson with the concurrence of the NDE Progam. Each committee shall select one member to serve as committee chair.
c. The activities of all standing committees shall be reported at each NDE Progam meeting.
2. Ad-Hoc Committee
a. The Chairperson and NDE Progam are authorized to establish such adhoc committees as necessary to facilitate the functions of the NDE Progam.
b. Members of ad-hoc committees shall be selected by the Chairperson with the concurrence of the NDE Progam. Each ad-hoc committee shall select one member to serve as committee chair.
c. The activities of all ad-hoc committees shall be reported at each NDE Progam meeting.
3. Committee members other than the Chairperson do not have to be members of the NDE Progam, but shall meet the requirements of paragraph 4 of Membership.
MEETINGS
REVISION
This Charter shall be reviewed annually and reviewed no less than once every 3 years.
Associate Administrator for Safety and Mission Assurance
Program Manager
Edward R. Generazio
(757) 864-4968
edward.r.generazio@nasa.gov