ML19207A870
| ML19207A870 | |
| Person / Time | |
|---|---|
| Issue date: | 08/14/1979 |
| From: | Hargett D NRC OFFICE OF ADMINISTRATION (ADM), RADIATION RESEARCH ASSOCIATES |
| To: | |
| Shared Package | |
| ML19207A864 | List: |
| References | |
| CON-FIN-B-1199, CON-NRC-03-79-159, CON-NRC-3-79-159 NUDOCS 7908220533 | |
| Download: ML19207A870 (5) | |
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N. M. SCHAEFFER, PRESIDEN:
lg79 AULi 0 7 Dora J. Hargett
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Page 2 of 5 ARTICLE I - STATEMENT r h'ORK
Background
This original SKYSHli!E program developed by Radiation Research Associates, Inc. (RRA) was intended for calculation of gamma-ray dose rates at an outside location due to nitrogen-16 radionuclides (which emit gamma rays of energy 6.2 MeV) contained inside a housing structure such as a nuclear power plant. The program calculated the dose rate by utilizing air scattering data, concrete and steel wall-reflection and shielding transmission data only for 6.2 MeV ga nas.
Recently, RRA has performed a contract work sponsored by the Radiological Assessment Branch (RAB), DSE, NRR to introduce capability into the original SKYSHIlE for calculating dose rates at off-site locations due to penetrating radiation, namely neutrons and gammas, belonging to a continuous energy spectrum (not just the discrete 6.2 MeV of old SKYSHINE).
The need for RAB to have this done was to acquire capability for calculating the contribution of radiation from the contained sources in the nuclear plant to the dose rate at off-site locations for verification of compliance with EPA's 40 CFR 190 which will be effective in December 1979. The work performed by RRA for RAB is under pu'blication as MUREG/CR-078 and the calculational procedure is now called SKYSHINE II.
SKYSHINE II is an incomplete extension of the old SKYSHINE program developed by RRA.
The capabilities of the SKYSHINE II are that it can calculate dose rates at outside receptor locations up to 1500 meters from a nuclear plant from sources with continuous or discrete spectrum of gammas or neutrons contained inside the plant.
It can also calculate dose rates at the outside receptor locations from secondary gammas resulting from interaction of primary source neutrons with outside air.
However, all the above dose rates are only air-scattered dose rates which are due to radiation (with descrete or contiruous spectrum in the range of 0.01-10 MeV and 0.001-15 MeV for gammas and neutrons respectively) passing through holes (openings) in the building structure (walls and roof) enclosing the sources.
Unlike the old SKYSHINE of RRA for discrete 6.2 MeV gammas, the SKYSHINE II cannot calculate dose rates from wall transmission of wall reflection.
Radiation (neutrons and gammas) emitted from the source are assumed to come to a stop on hitting the inside structure surfaces. Thus, application of SKYSHINE II to many situations is limited.
Therefore, for completing the extension of c old SKYSHINE, RRA should perform additional work on the following.
Task The Contractor shall update the SKYSHINE II coding so that the calculational methods used in the procedure will be capable of treating problems that 781148
Page 3 of 5 consider reflecticn of radiation by the floor and walls and transmission of radiation by the walls and roof of a rectangular structure for distri-buted energy sources of neutrons and gamma rays.
rask II The Contractor shall process the neutron and gamma ray albedo data for steel and concrete that are available from RSIC as DLC-59/'\\D, put the albedo data into a form that it can be used by SKYSHINE II and incorporate the albedo data into a SKYSHINE library input data file.
Task III The Contractor shall use the ANISH procedure to generate gamma-ray trans-mission data for three (3) concrete wall thicknesses to eight (8) feet and for three (3) iron wall thicknesses to seven (7) inches.
The shield transmission data will be generated for eleven gamna-ray energy groups in the energy range between 10 and 0.01 MeV using gamma-ray cross section data from DLC/37 and an 5 angle quadrature.
The ANISM calculated shield forgammaicvswillbeprdbessed,putintotheformatrequiredbySKYSHINE II and incor; 3 rated into a SKYSHINE II library input data file.
Task IV The utilization instructions for the SKYSHINE II procedure will be updated to incorporate the changes made in the procedure under Tasks I, II, and III.
(Only one camera ready copy shall be required. )
AP.TILCE II - PERIOD OF PERFORMANCE The period of performance under this contract will commence on the effective
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date of this contract and all affort including submission of the final report shall be complete five (5) months after effective date.
ARTICLE III - CONSIDERATION In full consideration of the Contractor's performance hereunder, NRC shall pay the Contractor the fixed amount of $9,930.00.
ARTICLE IV - OBLIGATIONS The amount presently obligated by the NRC with. respect to this contract is $9,980.00.
ARTICLE V - PAYMENT Payment shall be made in accordance with Clause two (2) of beneral Provis-ions entitled " payment" as soon as practicable after completion and acceptance of all work, upon submission by the Contractor Voucher (s) in a form satis-781149
Page 4 of 5 factory to the Contracting Officer; provided, however, that said payment (s) shall not be deemed to prejudice any rights which the Government may have by law or under provision of the contract.
ARTICLE VI - SPECIAL PROVISIONS VI.]
CONTRACTING OFFICER'S AUTHORIZED REPRESENTATIVE (COAR)
Performance of the work hereunder shall be subject to the technical The instructions issued by the US Nuclear Regulatory Commission.
l techrical instructions shall be signed by the COAR.
The COAR is responsible for:
I monitoring the Contractor's technical progress, including the sur-1.
veillance and assessment of performance and recommending to the Contracting Officer changes in requirement; 2.
interpreting the statement of work; 3.
performing technical evaluation as required; performing the technical inspections and acceptances required by 4.
this contract; and 5.
assisting the Contractor in the resolution of technical problems encountered during performance.
Within the purview of this authority, the COAR is authorized to approve The payment vouchers for supplies / services required under the contract.
Contracting Officer is respensible for directing or negotiating any changes in terms, conditions, or amounts cited in the contract.
l For guidance from the COAR to the Contractor to be valid, it must:
l 1.
be consistent with the description of work set forth in tais contract; not constitute nev, assignment of work or change of the expressed 2.
terms, conditions, or specifications incorporated into this contract; 3.
not constitute a basis for an extension to the period of performance or contract delivery schedule; and 4.
not constitute a basis for any increase in the contract price.
i l
If the Contractor receives guidance from'the COAR which the Contractor feels is not valid under the criteria cited above, the Contractor shall immediataly notify the COAR.
If the COAR and the Contractor are not able to resolve the questions within five days, the Contractor shall l
notify the Contracting Officer.
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Pag" 5 of 5 VI.2 INSPECTIQU AND ACCEPTANCE Acceptance of the services and reports to be delivered herein will be made by the COAR.
DISSE'11 NATION OF CONTPACT INFORMAlION VI.3 1
distribute The Contractor shall not publish, permit to be pu'alishea, o for public consumption any information, oral or written, (T,so without the prior written consent of the Contracting Officer copies of any material proposed to be published or distributed shall be submitted to the Contracting Officer. )
GOVERINENT FURNkSHED MATERIALS VI.4 Upon execution of this contract, the following mat: rial shal' be furnished by the NRC for use in performance of this contract.
Access computer time on the BNL computer at Brook Haven National 1.
Labo r,a to ry.
VI.5 KEY PERSONNEL For the purpose of Clause 26 of !.he General Provisions Mike Wells is identified as being essential to the work being performed.
ARTICLE VII - GENERAL PROVISIONS This contract is subject to the Fixed Price Research and Development Contracts under $10,000.00, dated November 14, 1977, which incorporated the FPR Changes attached hereto and made a part hereof.
and Additions and NRC Additions Clause 14 entitled " Patent Rights" is deleted in its entirety.
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