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{{Adams | {{Adams | ||
| number = | | number = ML12220A069 | ||
| issue date = 08/31/1997 | | issue date = 08/31/1997 | ||
| title = | | title = Use of Fixed Neutron Absorbers at Fuels and Materials Facilities. | ||
| author name = | | author name = | ||
| author affiliation = NRC/RES | | author affiliation = NRC/RES | ||
Line 11: | Line 11: | ||
| contact person = | | contact person = | ||
| case reference number = DG-3011 | | case reference number = DG-3011 | ||
| document report number = RG-3. | | document report number = RG-3.070 | ||
| document type = Regulatory Guide | | document type = Regulatory Guide | ||
| page count = 4 | | page count = 4 | ||
}} | }} | ||
{{#Wiki_filter:U.S. NUCLEAR REGULATORY | {{#Wiki_filter:U.S. NUCLEAR REGULATORY COMMISSION August 1997 REGULATORY GUIDE | ||
COMMISSION | OFFICE OF NUCLEAR REGULATORY RESEARCH | ||
August 1997 REGULATORY | REGULATORY GUIDE 3.70 | ||
(Draft issued as DG-3011) | |||
USE OF FIXED NEUTRON ABSORBERS AT | |||
GUIDE 3.70 (Draft issued as DG-3011) USE OF FIXED NEUTRON ABSORBERS | FUELS AND MATERIALS FACILITIES | ||
FACILITIES | |||
==A. INTRODUCTION== | ==A. INTRODUCTION== | ||
In 10 CFR Part 70, "Domestic Licensing of Special Nuclear Material," Section 70.22, "Contents of Ap plications," requires that applications for a specific license to own, acquire, deliver, receive, possess, use, | was prepared by Subcommittee ANS-8, Fissionable Materials Outside Reactors, of the American Nuclear In 10 CFR Part 70, "Domestic Licensing of Special Society Standards Committee. ANSI/ANS-8.21-1995 Nuclear Material," Section 70.22, "Contents of Ap- was approved by the American National Standards plications," requires that applications for a specific Committee N16, Nuclear Criticality Safety, and by the license to own, acquire, deliver, receive, possess, use, American National Standards Institute (ANSI) in 1995. | ||
This regulatory guide provides guidance for complying with this portion of the Commission's regulations by de scribing procedures for preventing criticality accidents by using fixed neutron absorbers in operations involv ing handling, processing, storing, and transporting spe | or initially transfer special nuclear material contain proposed procedures to avoid criticality accidents. This ANSI/ANS-8.21-1995 provides guidance for regulatory guide provides guidance for complying with using fixed neutron absorbers as an integral part of op- this portion of the Commission's regulations by de- erations to prevent criticality accidents in operations in- scribing procedures for preventing criticality accidents volving handling, processing, storing, and transporting by using fixed neutron absorbers in operations involv- special nuclear materials at fuels and materials facili- ing handling, processing, storing, and transporting spe- ties. The design, safety evaluations, and verification and inspection requirements for the use of fixed neutron cial nuclear material at fuels and materials facilities. | ||
The information collections contained in this regu | absorbers for criticality safety control are specified in The information collections contained in this regu- the standard. | ||
The NRC may not conduct or sponsor, and a person is not required to respond to, a collection of information un less it displays a currently valid OMB control number. | latory guide are covered by the requirements of 10 CFR | ||
The methods described in this guide were applied Part 70, which were approved by the Office of Manage- to a number of specific cases during reviews and ment and Budget, approval number 3150-0009. The selected licensing actions. These methods reflect the NRC may not conduct or sponsor, and a person is not latest general NRC approach to criticality safety in op- required to respond to, a collection of information un- erations involving the use of fixed neutron absorbers at less it displays a currently valid OMB control number. | |||
fuels and materials facilities. | |||
==B. DISCUSSION== | ==B. DISCUSSION== | ||
ANSI/ANS-8.21-1995 | ==C. REGULATORY POSITION== | ||
ANSI/ANS-8.21-1995, "Use of Fixed Neutron ANSI/ANS-8.21-1995, "Use of Fixed Neutron | |||
1 Absorbers in Nuclear Facilities Outside Reactors," Absorbers in Nuclear Facilities Outside Reactors," pro- vides procedures acceptable to the NRC staff for the use | |||
1Copies may be obtained from the American Nuclear Society, 555 N. | |||
The methods | Kensington Avenue, La Grange Park, Illinois 60525. of fixed neutron absorbers in handling, processing, USNRC REGULATORY GUIDES The guides are issued in the following ten broad divisions: | ||
Regulatory Guides are issued to describe and make available to the public such informa- tion as methods acceptable to the NRC staff for implementing specific parts of the Corn- 1. Power Reactors 6. Products mission's regulations, techniques used by the staff in evaluating specific problems or pos- 2. Research and Test Reactors 7. Transportation tutated accidents, and data needed by the NRC staff in its review of applications for per- 3. Fuels and Materials Facilities 8. Occupational Health mits and licenses. Regulatory guides are not substitutes for regulations, and compliance 4. Environmental and Siting - 9. Antitrust and Financial Review with them is not required. Methods and solutions different from those set out in the guides 5. Materials and Plant Protection 10. General will be acceptable if they provide a basis for the findings requisite to the issuance or con- tinuance of a permit or license by the Commission. | |||
Single copies of regulatory guides may be obtained free of charge bywriting the Printing. | |||
Regulatory guides are | This guide was issued after consideration of comments received from the public. Corn- Graphics and Distribution Branch, Office of Administration, U.S. Nuclear Regulatory Com- ments and suggestions for improvements inthese guides are encouraged atall times, and mission, Washington, DC 20555-0001; or by fax at (301)415-5272. | ||
guides will be revised, as appropriate, to accommodate comments and to reflect new in- formation or experience. Issued guides may also be purchased from the National Technical Information Service on Written comments may be submitted to the Rules Review and Directives Branch, DFIPS, a standing order basis. Details on this service may be obtained by writing NTIS, 5285 Port ADM, U.S. Nuclear Regulatory Commission, Washington, DC 20555-0001. Royal Road, Springfield, VA 22161. | |||
storing, and transporting special nuclear material at Section 6 of ANSI/ANS-8.21-1995 lists addition- fuels and materials facilities to avoid criticality acci- al documents referred to in the standard. The specific dents. Use of ANSI/ANS-8.21-1995, however, is not a applicability and acceptability of three of these listed substitute for the licensee's preparation of and NRC's documents has been addressed in the latest version of approval of detailed nuclear criticality safety analyses the regulatory guides identified below. | |||
for specific operations. | |||
Standard Regulatory Guide ANSI/ANS-8.1-1983 3.4 Nuclear Criticality Safety in Operations with Fissionable Materials at Fuels and Materials Facilities ANSI/ANS-8.5-1986 3.1 Use of Borosilicate-Glass Raschig Rings as a Neutron Absorber in Solutions of Fissile Material ANSI/ANS-8.17-1984 3.58 Criticality Safety for Handling, Storing, and Transporting LWR | |||
Fuel at Fuels and Materials Facilities | |||
==D. IMPLEMENTATION== | |||
Except in those cases in which the applicant pro- poses an acceptable alternative method for complying with specified portions of the NRC's regulations, the The purpose of this section is to provide informa- methods in this guide will be used in the evaluation of tion to applicants and licensees regarding the NRC submittals in connection with license applications sub- staff's plans for using this regulatory guide. mitted under 10 CFR Part 70. | |||
3.70-2 | |||
REGULATORY ANALYSIS | |||
This regulatory guide endorses ANSI/ fixed neutron absorbers, (2) more established methods ANS-8.21-1995, "Use of Fixed Neutron Absorbers in for specifying technical specifications, (3) guidance on Nuclear Facilities Outside Reactors." Issuing this regu- design, evaluation, verification, and inspection of fixed latory guide is consistent with the NRC policy of evalu- neutron absorbers, and (4) less chance for unwarranted ating the latest national consensus standards in terms of criticality accidents. | |||
their suitability for endorsement by regulatory guide. ANSI/ANS-8.21-1995, "Use of Fixed Neutron The methods described in this guide were applied to a Absorbers in Nuclear Facilities Outside Reactors," pro- number of specific cases during reviews and selected li- vides more specific guidance on establishing and using censing actions. These methods reflect the latest gener- fixed neutron absorbers. It does not provide any new al NRC approach to criticality safety in operations in- methodology for establishing the use of fixed neutron volving the use of fixed neutron absorbers at fuels and absorbers than is presently required in 10 CFR Part 70. | |||
The value to NRC operations and industry is that there would be (1) a systematic method for specifying and reviewing technical specifications on allowable | materials facilities. Thus, the incremental cost should be negligible (or at The value to NRC operations and industry is that most marginal) if an applicant or licensee follows the there would be (1) a systematic method for specifying guidance in ANSI/ANS-8.21-1995 as opposed to not and reviewing technical specifications on allowable following this standard. | ||
3.70-3 | |||
UNITED STATES | |||
FIRST CLASS MAIL | |||
COMMISSION | NUCLEAR REGULATORY COMMISSION POSTAGE AND FEES PAID | ||
WASHINGTON, D.C. 20555-0001 | WASHINGTON, D.C. 20555-0001 USNRC | ||
PERMIT NO. G-67 OFFICIAL BUSINESS | |||
PENALTY FOR PRIVATE USE, $300 | |||
PRINTED ON RECYCLED PAPER}} | |||
{{RG-Nav}} | {{RG-Nav}} |
Latest revision as of 01:05, 12 November 2019
ML12220A069 | |
Person / Time | |
---|---|
Issue date: | 08/31/1997 |
From: | Office of Nuclear Regulatory Research |
To: | |
References | |
DG-3011 RG-3.070 | |
Download: ML12220A069 (4) | |
U.S. NUCLEAR REGULATORY COMMISSION August 1997 REGULATORY GUIDE
OFFICE OF NUCLEAR REGULATORY RESEARCH
REGULATORY GUIDE 3.70
(Draft issued as DG-3011)
USE OF FIXED NEUTRON ABSORBERS AT
FUELS AND MATERIALS FACILITIES
A. INTRODUCTION
was prepared by Subcommittee ANS-8, Fissionable Materials Outside Reactors, of the American Nuclear In 10 CFR Part 70, "Domestic Licensing of Special Society Standards Committee. ANSI/ANS-8.21-1995 Nuclear Material," Section 70.22, "Contents of Ap- was approved by the American National Standards plications," requires that applications for a specific Committee N16, Nuclear Criticality Safety, and by the license to own, acquire, deliver, receive, possess, use, American National Standards Institute (ANSI) in 1995.
or initially transfer special nuclear material contain proposed procedures to avoid criticality accidents. This ANSI/ANS-8.21-1995 provides guidance for regulatory guide provides guidance for complying with using fixed neutron absorbers as an integral part of op- this portion of the Commission's regulations by de- erations to prevent criticality accidents in operations in- scribing procedures for preventing criticality accidents volving handling, processing, storing, and transporting by using fixed neutron absorbers in operations involv- special nuclear materials at fuels and materials facili- ing handling, processing, storing, and transporting spe- ties. The design, safety evaluations, and verification and inspection requirements for the use of fixed neutron cial nuclear material at fuels and materials facilities.
absorbers for criticality safety control are specified in The information collections contained in this regu- the standard.
latory guide are covered by the requirements of 10 CFR
The methods described in this guide were applied Part 70, which were approved by the Office of Manage- to a number of specific cases during reviews and ment and Budget, approval number 3150-0009. The selected licensing actions. These methods reflect the NRC may not conduct or sponsor, and a person is not latest general NRC approach to criticality safety in op- required to respond to, a collection of information un- erations involving the use of fixed neutron absorbers at less it displays a currently valid OMB control number.
fuels and materials facilities.
B. DISCUSSION
C. REGULATORY POSITION
ANSI/ANS-8.21-1995, "Use of Fixed Neutron ANSI/ANS-8.21-1995, "Use of Fixed Neutron
1 Absorbers in Nuclear Facilities Outside Reactors," Absorbers in Nuclear Facilities Outside Reactors," pro- vides procedures acceptable to the NRC staff for the use
1Copies may be obtained from the American Nuclear Society, 555 N.
Kensington Avenue, La Grange Park, Illinois 60525. of fixed neutron absorbers in handling, processing, USNRC REGULATORY GUIDES The guides are issued in the following ten broad divisions:
Regulatory Guides are issued to describe and make available to the public such informa- tion as methods acceptable to the NRC staff for implementing specific parts of the Corn- 1. Power Reactors 6. Products mission's regulations, techniques used by the staff in evaluating specific problems or pos- 2. Research and Test Reactors 7. Transportation tutated accidents, and data needed by the NRC staff in its review of applications for per- 3. Fuels and Materials Facilities 8. Occupational Health mits and licenses. Regulatory guides are not substitutes for regulations, and compliance 4. Environmental and Siting - 9. Antitrust and Financial Review with them is not required. Methods and solutions different from those set out in the guides 5. Materials and Plant Protection 10. General will be acceptable if they provide a basis for the findings requisite to the issuance or con- tinuance of a permit or license by the Commission.
Single copies of regulatory guides may be obtained free of charge bywriting the Printing.
This guide was issued after consideration of comments received from the public. Corn- Graphics and Distribution Branch, Office of Administration, U.S. Nuclear Regulatory Com- ments and suggestions for improvements inthese guides are encouraged atall times, and mission, Washington, DC 20555-0001; or by fax at (301)415-5272.
guides will be revised, as appropriate, to accommodate comments and to reflect new in- formation or experience. Issued guides may also be purchased from the National Technical Information Service on Written comments may be submitted to the Rules Review and Directives Branch, DFIPS, a standing order basis. Details on this service may be obtained by writing NTIS, 5285 Port ADM, U.S. Nuclear Regulatory Commission, Washington, DC 20555-0001. Royal Road, Springfield, VA 22161.
storing, and transporting special nuclear material at Section 6 of ANSI/ANS-8.21-1995 lists addition- fuels and materials facilities to avoid criticality acci- al documents referred to in the standard. The specific dents. Use of ANSI/ANS-8.21-1995, however, is not a applicability and acceptability of three of these listed substitute for the licensee's preparation of and NRC's documents has been addressed in the latest version of approval of detailed nuclear criticality safety analyses the regulatory guides identified below.
for specific operations.
Standard Regulatory Guide ANSI/ANS-8.1-1983 3.4 Nuclear Criticality Safety in Operations with Fissionable Materials at Fuels and Materials Facilities ANSI/ANS-8.5-1986 3.1 Use of Borosilicate-Glass Raschig Rings as a Neutron Absorber in Solutions of Fissile Material ANSI/ANS-8.17-1984 3.58 Criticality Safety for Handling, Storing, and Transporting LWR
Fuel at Fuels and Materials Facilities
D. IMPLEMENTATION
Except in those cases in which the applicant pro- poses an acceptable alternative method for complying with specified portions of the NRC's regulations, the The purpose of this section is to provide informa- methods in this guide will be used in the evaluation of tion to applicants and licensees regarding the NRC submittals in connection with license applications sub- staff's plans for using this regulatory guide. mitted under 10 CFR Part 70.
3.70-2
REGULATORY ANALYSIS
This regulatory guide endorses ANSI/ fixed neutron absorbers, (2) more established methods ANS-8.21-1995, "Use of Fixed Neutron Absorbers in for specifying technical specifications, (3) guidance on Nuclear Facilities Outside Reactors." Issuing this regu- design, evaluation, verification, and inspection of fixed latory guide is consistent with the NRC policy of evalu- neutron absorbers, and (4) less chance for unwarranted ating the latest national consensus standards in terms of criticality accidents.
their suitability for endorsement by regulatory guide. ANSI/ANS-8.21-1995, "Use of Fixed Neutron The methods described in this guide were applied to a Absorbers in Nuclear Facilities Outside Reactors," pro- number of specific cases during reviews and selected li- vides more specific guidance on establishing and using censing actions. These methods reflect the latest gener- fixed neutron absorbers. It does not provide any new al NRC approach to criticality safety in operations in- methodology for establishing the use of fixed neutron volving the use of fixed neutron absorbers at fuels and absorbers than is presently required in 10 CFR Part 70.
materials facilities. Thus, the incremental cost should be negligible (or at The value to NRC operations and industry is that most marginal) if an applicant or licensee follows the there would be (1) a systematic method for specifying guidance in ANSI/ANS-8.21-1995 as opposed to not and reviewing technical specifications on allowable following this standard.
3.70-3
UNITED STATES
FIRST CLASS MAIL
NUCLEAR REGULATORY COMMISSION POSTAGE AND FEES PAID
WASHINGTON, D.C. 20555-0001 USNRC
PERMIT NO. G-67 OFFICIAL BUSINESS
PENALTY FOR PRIVATE USE, $300
PRINTED ON RECYCLED PAPER