CAPINTEC, INC. CRC
®
-25R
Accuracy Test
If your Accuracy Test setup includes nuclides that are not used in the Daily Tests, the
Accuracy Test should be performed with those nuclides. It will not be necessary to repeat the
test for those nuclides that were included in the Daily Test. (reference CHAPTER 8:
BACKGROUND AND TESTS)
If a printer is attached to the system, the test results will automatically be printed at the end
of all source measurements.
Note: Accuracy test requires a dedicated check source of known activity which is measured
on a daily basis. This test provides both an accuracy value as well as a long term
reproducibility check of the instrument.
Note: There is no need to perform a constancy test on alternate calibration (nuclide)
settings. This provides no value in terms of instrument operation. However, due to
numerous procedures which reference this test, operators who prefer to include this
test should refer to CHAPTER 8: BACKGROUND AND TESTS.
Linearity Test
The linearity of the CRC
®
-25R should be checked over the entire range of activities which are
reasonably anticipated to be used. The initial linearity should be performed using decay
method of measuring a short lived isotope over time. Thereafter, use of calibrated sleeves is
acceptable.
DAILY QUALITY ASSURANCE TESTS
Daily Tests
The Daily Test should be conducted at the beginning of each working day, prior to measuring
any samples, which will be administered to patients. These tests consist of an Auto Zero
operation, a Background Adjustment, a Chamber Voltage Test, a Data Check, an Accuracy
Test, and a Constancy Test. (reference CHAPTER 8: BACKGROUND AND TESTS)
Accuracy Test
If your Accuracy Test includes nuclides that are not used in the Daily Tests, the Accuracy
Test should be performed with those nuclides as a part of the Daily Test.
This test is the same as the Accuracy Test described in CHAPTER 8: BACKGROUND AND
TESTS, SECTION: ACCURACY and CONSTANCY TEST IN DAILY TEST. This test is
performed independently from the other portions of the Daily Test sequence.
The Accuracy Tests cannot be conducted until the Test Source data has been entered
(reference CHAPTER 6: CHAMBER INITIALIZATION, SECTION: TEST SOURCES).
7 - 2 ACCEPTANCE & QUALITY ASSURANCE TESTS March 15
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