ML20027C026

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Mod 8,extending Period of Performance to 830930 & Increasing Funding,To Development & Implementation of Flow Analysis Based on Synthetic Aperture Ultransonic Imaging Technique
ML20027C026
Person / Time
Issue date: 09/15/1982
From: Gustave R, Sprencel J
NRC OFFICE OF ADMINISTRATION (ADM), SOUTHWEST RESEARCH INSTITUTE
To:
Shared Package
ML20027C025 List:
References
CON-FIN-B-5605, CON-NRC-04-77-145, CON-NRC-4-77-145 NUDOCS 8210120330
Download: ML20027C026 (4)


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Understandings mid Agreements 1.

The purpose of this modification is to extend the period of pericrmance to allow the contractor time to perform additional within scope effort.

Increased funding is provided for these within scope changes, as se described below.

Therefore, the contractor shall perform the effort 1_.l @

described by this modification and in accordance with the contractor's g

proposal No. 17-3890A dated July 13, 1982 which is hereby incorporated cv n into the subject contract by this reference.

m oe 8a:rl a$v. 2.

In performance of this effort the contractor shall incorporate the Government o 1 S

owned equipment, listed in the above referenced proposal, into the new equipment y

design.

In return for rent free use of this Government equipmcnt, all results (h

of the contractor's internal research program No. 17-9330, as described in SWRI Internal Research Proposal No. 17-3453 dated February 9,1982 shall be incorporated into the subject contract's final report as discussed in i tem "3.i."

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s Vuality Assurance Systems and SEP 151982 Raymond P. Gustave 9/r /82 pingineenng Divitica _

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",4 4 7-lE Page 2 of.4 Items "3a thru 3e" ano "3j"', below, shall be performed under the contractor'.s internal resaarch program and are not funded under

-this supplemental agreement and shall not be charged under this con trac t.

The Government shall have-unrestricted access to the equipment and the right to utilize the equipment for the duration of the contract without effect to this agreement.

. All results, rights in drta, patents, and copyrights resulting from this modification including the contractor's internal research program identified above shall be subject to the applicable subject contract clauses.

3.

Specifically the contractor shall perform the following, as further outlined in the contractor's above referenced proposals:

a.

Develop a data acquisition subsystem, using NRC owned components, which is capable of permitting SAFT-UT examinations using either a focused beam transducer (zero degree orientation) or a surface contact angle beam transducer.

b.

Design and fabricate small surface contact transducers for SAFT-UT work'and purchase other commercially' available small tranducers.

Evaluate these tranducers and select and recomend one or more tranducers suitable for SAFT-UT inspections.

c.

Design, fabricate and test a new transducer holder and shoe assembly to perform surface contact angle beam exa.inations of inservice components using SAFT-UT in both the imersed and non-immersed mode of inspection.

d.

Using the developments and results from tasks'1, 2, and 3 assemble a SAFT-UT inspcction system capable of performing either zero degree focused transducer or surface contact angle beam examinatien2 Validate the system performance by conducting a series of tests (for both 0 and angle bcam) using machined reflectors of known size, shape and orientation. ' Analyze, correct and upgrade the system until the expected (based on past results with-SAFT-UT) system performance is achieved.

E' valuate-the ir.iproved SAFT-UT system for both' ::ero degree focuse'd e.

transducer and contact angle beam inspection by performing inspections on previously fabricated and assembled specid. ens for NRC contract-c NRC-04-77-145 containing a variety of weld defects (including cracks) and geometry conditions.

Also, evaluate the system on a

variety of cracking specimens.and components containing stress corrosion cracks and fatigue cracks of varying Lorientations, including flaw orientations most difficult to detect.

Pericrr. destructive

-examinations; of some specimens to allow quantitative comparisons of

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actual vs SAFT-UT imaged flaws.

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,to Contract No.. ;-04-77-145 Page 3 of 4 f.

Conduct laboratory tests to investigate and to quantify the deleterious affect of severe metallurgical properties on the performance characteristics of SAFT UT.

Specifically, that the SAFT UT shall be applied to test specimens containing a variety of flaws representing:

1.

Centrifugally cast stainless steel, 2.

Dissimilar metal welds such as contained in sa'e-end wel d s.

These flaws shall be imaged using different examination angles and beam orientations.

SAFT UT data shall be correlated with data from conventional UT examinations and from destructive sectioning and a determination nade as to the effectiveness of SAFT MT examinations for these conditions.

g.

After the improved system has been fully evaluated and characterized by conducting the laboratory tests from the above tasks, validate the system for field inspections by conducting on-site ISI or PSI of reactor components using the SAFT UT system and a conventional system for comparisons.

The SAFT UT system shall be used to evaluate detected or known indications in actual crerating reactor components.

In preparing for field testing, the following subtasks are required.

a.

Assemble and test a water column required to perform a non-irc.ersed scan, and b.

Assen.ble and test support equipment required to perform a remote scanner inspection activity.

h.

Provide consultation and information exchange to NRC and NRC NDE contractors on all the above activities to kcep them currently and fully informed of SAF1-UT developments and application to field inspections.

i.

A' final topical report will be prepared and submitted to the NRC followihg the above t ests.

This repor't will include a complete description of the examination. system, the results of laboratory and field tests, a definition of the system's techr.ical perfonnance, and recommendations concerning further application of the technique.

j-In addition to the topical report, a complete system design package will be submitted.

This package will include copies of electrical and rechanical drawings as well as computer sof tware documentation.

Also, binently progress repcrts will be submitted.

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Under Article II, Period of Performance, the Period of Perfor.mance is

  1. M eptember 30, 1983."

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extended from " December 31, l982 t

C.

Under Article III, Consideration, A., Estimated Cost and Fixed Fee, make the following changes:

Paragraph 1 - Present Estimated Cost - The Present Estimate of Cost is increased by T46,609.00 from 5546,380.00 to $592,989.00.

Paragraph 2 - fixed Fee - The Fixed Fee is increased from $33,440.00 by

$3,269.00 to $41,709.00.

Paragraph 3 - Amount Presently Obligated - TFe Amount Presently Obligated is increased from 5584,520.00 by $49,978.00 to 5634,498.00.

-The contract amount is hereby increased by $49,978.00 from 5554,520.00 to T5634,498.00.

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