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TM UNITED STATES DEPARTMENT OF COMMERCE
; | National Institute of Standards and Technology
4, ao Gaithersburg, Maryland 20899-0001
‘ares oF OFFICE OF THE DIRECTOR

October 1, 2004

MEMORANDUM FOR Lisa Karam, Acting Chief
Tonizing Radiation Division

From: Richard Kayser, Chair
Measurement Services Advisory Group

Subject: Declaration of Ionizing Radiation Calibration Services in Conformity
with the NIST Quality System for Measurement Services

Based upon a review of the intermediate and final results of the NIST Quality System
assessment process and the positive recommendation of the NIST Quality System
Assessment Review Board (see Section 4.6.1 of the NIST-level Quality Manual and
references therein), the Measurement Services Advisory Group (MSAG) declares the
following calibration services offered by the Ionizing Radiation Division to be in
conformity with the NIST Quality System for Measurement Services. Please extend the
MSAG?’s congratulations to your quality system management team and to all staff
members involved in providing these calibration services for this major accomplishment.

43010C Gamma-Ray-Emitting Radionuclides in Solution (Half Lives Greater than
15 days) .

43020C Gamma-Ray-Emitting Radionuclides in Solution (Half Lives Less than 15
days)

43030C Alpha-Particle-Emitting Solid Sources, NIST 27 alpha Proportional
Counter —_ :

43040C Alpha-Particle-Emitting Solid Sources, NIST 0.87 alpha Defined-Solid-
Angle Counter

43050C Alpha-Particle-Emitting Solid Sources, Using Both Counting Systems

46010C Radiation Detectors — Calibration/Correction Factor, One Beam Quality
46011C Each Additional Beam Quality or Condition

46020C Passive Dosimeters — Irradiation of Up to Six, One Beam Quality at One
Set-Up

46021C Up to Six Additional dosimeters at Same Setup and Beam Quality

46110C Radiation Detectors Calibration/Correction Factor (Absorbed-Dose-To-

Water Calibrations for Ionization Chambers)

NisT


47010C

47011C
‘47020C

47021C

47030C
47035C
47036C

49010C
49020C
49030C

44010C
44020C
44060C

Gamma-Ray Sources Similar to NIST Standards — Co or "Cs, Having
Air-Kerma Strengths 10 Gy m’/h to 1500 pGy m’/h; and '"Ir Sources of
the Same Type Used to Calibrate Reentrant Chamber Having Air-Kerma
Strengths 0.1 Gy m7/h to 30 wGy m’/h (Gamma-Ray Sources, Co-60, Cs-
137, Ir-192) ‘

Each Additional Gamma-Ray source of Same Radionuclide

251 or '3bd Sources: Seeds Having Air-Kerma Strengths 0.5 »Gy m2/h to
100 Gy m7/h (Low-energy Photon Brachytherapy Seeds, I-125, Pd-103)

Each Additional '*I or Pd Source of Same Radionuclide/Design
Submitted with Above

Beta-Particle Sources Calibrated for Surface Dose Rate
Beta-Particle Sources Calibrated for Radiation Protection

Ionization Chambers Calibrated with Beta-Particle Sources for Radiation
Protection

Calibration Irradiations of Customer Supplied Dosimeters with “Co

- Gamma-Rays

Dose Interpretation of NIST Transfer Dosimeter Irradiated by Customer,
Three Dosimeters Plus Control(s)

Dose Interpretation of Each NIST Transfer Dosimeter Package in
Addition to Those Supplied Under 49020C

’ Radioactive Neutron Sources Emission Rates (10°/s to 10°/s)

Radioactive Neutron Sources Emission Rates (10°/s to 10!%/s)

Personnel Protection Instrumentation, Californium Source Bare and
Moderated

cc: Katherine Gebbie, Director, Physics Laboratory
William Ott, Deputy Director, Physics Laboratory
Warren Merkel, Chair, NIST Quality System Assessment Review Board
Members, Measurement Services Advisory Group