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Petitioner comments to State of IL letter recommending rejection of said petition
To facilitate an on-going dialogue regarding my petition for
rulemaking, I am providing my response I submitted to the USNRC this
morning, regarding the recently posted State of IL letter
recommending that my petition be rejected. While I respect many of
the state's comments, it is my opinion that they are "throwing the
baby out with the bath water" and really did not address the
reasoning and real intent of my petition. The IDNS is the only
"posted" comment so far. I know Bill Lipton recommended some
excellent modifications (that I concur with) but they have not been
either submitted, or just haven't been posted on the NRC site yet.
===============================================
Response to State of Illinois Department of Nuclear Safety letter in
regards to Docket Number Petition Rule PRM-20-25, May 4, 2003
The State of Illinois provided the following comments to my petition
for rulemaking:
1. While IDNS agrees that it is generally desirable for dosimetry to
be NVLAP accredited, there are certain situations where NVLAP
accreditation is impossible. For example, NVLAP accreditation is not
available for all neutron fields. Adoption of the petitioner's
proposal would leave no compliance options for licenses with
radiation fields beyond the standard NVLAP parameters.
Petitioner's Response: The IDNS is accurate when they state that
NVLAP does not include all neutron fields that can be found in the
field. This is also true for high and low energy photons as well as
beta radiation. NVLAP testing is based on ANSI N13.11-2001
requirements. The current ANSI N13.11-2001 expanded the NIST beam
codes to be available for testing from 5 up to a possible 59. In
addition, bare Cf-252 was added to supplement the previous moderated
Cf-252 field. The licensee or facility that uses x-ray-generating
equipment may chose what NVLAP categories to test in. The facility is
not required to test in every category, only those that are
representative of the filed use in which their employees are exposed
to. The categories chosen for testing are to be validated by the NRC
and/or state regulatory agency when the facility is inspected. Based
on the state's position with respect to this petition, they would
have one never test to any standard if the standard does not address
all photon, beta and neutron possible energy spectra. The intent of
NVLAP is top test the various energies across a broad spectra. The
newly revised ANSI N13.11-2001 does do just that. As far as the last
sentence where IDNS states "Adoption of the petitioner's proposal
would leave no compliance options for licenses with radiation fields
beyond the standard NVLAP parameters", that is the case today with
the photons tested. Does IDNS then assume to state that if a facility
works with an x-ray filed that does not get tested in the standard,
that the facility need not test to NVLAP? The answer is no, since the
IDNS, as do all other states, requiring personnel who wear a whole
body dosimeter that is processed, wear one that is NVLAP accredited.
The petition does not change that. The petition states that all whole
body as well as extremity dosimeters shall require NVLAP
accreditation. If there is no specific test for a specific energy, be
it photon, beta or neutron, then there is no test. That does not
change the fact that there is a standard to be met. Where there is no
current test, the facility still must demonstrate to the regulatory
agency how they justify using the specific dosimeter they provide
their employees. This has been the case in the past and that fact
does not change with this specific petition.
2. The petitioner does not propose a satisfactory solution for backup
dosimetry. Although the petitioner points out that certain licensees
issue redundant dosimetry to their personnel, that does not
completely eliminate solutions where the primary dosimetry is lost,
contaminated, or otherwise not useable. In these cases, the license
must still assign a dose of record and should be able to do so using
secondary non-NVLAP dosimetry. USNRC or Agreement State inspectors
should carefully evaluate the use of secondary Dosimetry for
compliance purposes.
Petitioner's Response: In the IDNS comment above, they are simply
stating what is the current situation with secondary dosimetry. To
consider the effect of using a secondary dosimeter, at the same time
that IDNS does not support the primary dosimeter to be NVLAP
accredited, as recommended in the petition, does not make any sense
to the petitioner. Granted, I do not address secondary dosimetry. My
intent is not to have every facility NVLAP approve both the primary
and secondary dosimeter that is worn. In that a facility can
calculate a dose when the primary dosimeter is lost, that is an
accepted method. My intent is not to force a facility to NVLAP test
every dosimeter they may wear, when they have provided additional
dosimetry, where a facility may only wear a single dosimeter. The
facility may elect to test both the primary and secondary dosimeter,
but that is not a requirement the petition proposes. The USNRC and
Agreement State inspectors should evaluate any dose of record that
was derived from a secondary dosimeter or from a calculation based on
surveys, stay times or other parameters that were used to perform the
dose reconstruction. That issue has nothing to do with this petition.
The petition addresses primary dosimetry only. If the USNRC believes
that they want to also include secondary dosimetry as requiring NVLAP
accreditation, that is their option. However, the petition does not
require that.
3. The petitioner makes the argument that the mandatory use of NVLAP
dosimetry would somehow require licensees to better evaluate
dosimetry use conditions and ensure that appropriate dosimetry is
employed. We disagree. Although the proper matching of a personnel
dosimeter with use conditions and radiation fields is critical to
proper dose assignment, the mandatory use of NVALP devices would not
address this problem. Only the USNRC or Agreement State inspector is
in position to evaluate whether the licensee made the correct choice.
Petitioner's Response: I agree with the following statement, "Only
the USNRC or Agreement State inspector is in position to evaluate
whether the licensee made the correct choice." The intent of NVLAP is
to provide a standard that addresses both for proficiency testing of
the dosimeter to specific categories, that the facility elects to
test ion. Additionally, there is an on-site assessment by a technical
expert, to evaluate the entire quality system. The technical expert
addresses the dosimetry program in detail. The technical expert does
not address the regulatory implications as to whether the dosimeter
is tested in the most appropriate categories, leaving that to the
regulatory agencies. The assessor may recommend that they test in
certain categories, but that's not a significant part of the
assessment. What the NVLAP process does provide for is a thorough
assessment of the quality system whereby when a facility provides a
dose they can demonstrate that it meets current standards and that a
technical expert assessed the program.
The IDNS recommends that the petition not be approved. The result of
this would be that extremity dosimeters, ring or wrist dosimeters,
will continue to be worn, and, there will never be any requirement
that they be tested under any proficiency testing program, nor will
there ever be any assessment by a technical expert, in the area of
dosimetry and the proper processing of Dosimetry. This would also be
true for a facility that elects to only wear an electronic dosimeter
for dose of record. There would be no required testing or assessment
of the program. While the petitioner does not question the
capabilities of the IDNS inspectors, it is my opinion that when it
comes to a detailed assessment of the dosimeter ands the method it is
processed, and the algorithms used to derive the dose of record, the
NVLAP technical expert is more capable of assessing the overall
quality system, where there is ample time allotted to accomplish the
assessment.
-------------------------------------------------
Sandy Perle
Director, Technical
ICN Worldwide Dosimetry Service
ICN Plaza, 3300 Hyland Avenue
Costa Mesa, CA 92626
Tel:(714) 545-0100 / (800) 548-5100 Extension 2306
Fax:(714) 668-3149
E-Mail: sandyfl@earthlink.net
E-Mail: sperle@icnpharm.com
Personal Website: http://sandy-travels.com/
ICN Worldwide Dosimetry Website: http://www.dosimetry.com/
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