IEC 61223-2-9:1999 pdf download

IEC 61223-2-9:1999 pdf download.Evaluation and routine testing in medical imaging departments – Part 2-9: Constancy tests – Equipment for indirect radioscopy and indirect radiography
1 Scope and object
1.1  Scope
This part of IEC 61 223 applies to those components of X- RAY EQUIPMENT which
a) generate, influence the propagation of, and detect X- RADIATION , and
b) process, present and store diagnostic X-ray images in RADIOLOGICAL INSTALLATIONS with
diagnostic X-ray systems for INDIRECT RADIOSCOPY and INDIRECT RADIOGRAPHY which use X-
RAY IMAGE INTENSIFIERS in conjunction with analogue and/or digital storage systems:
– closed-circuit television display systems:
– cut film cameras
– cine cameras.
This standard is a part of a series of Particular Publications (international standards and
technical reports) which define methods of testing the constancy of operation of various sub-
systems of diagnostic X- RAY EQUIPMENT .
This standard gives methods of tests for the constancy of properties of diagnostic X- RAY
EQUIPMENT as described in IEC 61223-1 (see clause 2).
This part of IEC 61 223 is designed to be applicable to equipment for indirect radioscopy and
indirect radiography without digital imaging devices.
1.2 Object
This standard defines
–the essential parameters which describe or affect the performance of the above components of X- RAY EQUIPMENT , and
– methods of checking that variations in measured quantities related to those parameters are within acceptable limits, in order to maintain adequate standards of imaging whilst reducing unnecessary IRRADIATION of the PATIENT .
These methods are based upon assessment of radiological information using appropriate TEST
DEVICES .
The purpose of the methods is
– to establish a reference level of performance when such equipment is accepted;
– to detect or verify any significant variation in functional parameters which may then require
corrective actions.
Because RADIOLOGICAL INSTALLATIONS differ widely from each other, it is not possible in this
standard to specify target values and tolerances for the parameters which would be generally
applicable as criteria of acceptable performance. Guidance is given, however, as to the degree
of variation in single measurements which might require appropriate action.
This standard is not intended to deal with
– aspects of mechanical and electrical safety;
– checks of the effectiveness of the direct means of protection against X- RADIATION ; optimization of imaging performance.
–  With regard to the measurements, reference is made to methods described in related publications which, for practical reasons should be carried out prior to the application of the methods described in this standard (see clause 2).
2 Normative references
The following normative documents contain provisions which, through reference in this text, constitute provisions of this part of IEC 61 223. For dated references, subsequent amendments to, or revisions of, any of these publications do not apply. However, parties to agreements based on this part of IEC 61 223 are encouraged to investigate the possibility of applying the most recent editions of the normative documents indicated below. For undated references, the latest edition of the normative document referred to applies. Members of IEC and ISO maintain registers of currently valid International Standards.
IEC 60788:1 984, Medical radiology – Terminology
IEC 61 223-1 :1 993, Evaluation and routine testing in medical imaging departments – Part 1 :
General aspects
IEC 61 223-2-1 :1 993, Evaluation and routine testing in medical imaging departments – Part 2-1 :
Constancy tests – Film processors
IEC 61 223-2-2:1 993, Evaluation and routine testing in medical imaging departments – Part 2-2:
Constancy tests – Radiographic cassettes and film changers – Film-screen contact and relative
sensitivity of the screen-cassette assembly
IEC 61 223-2-3:1 993, Evaluation and routine testing in medical imaging departments – Part 2-3:
Constancy tests – Darkroom safelight conditions
IEC 61 223-2-4:1 994, Evaluation and routine testing in medical imaging departments – Part 2-4:
Constancy tests – Hard copy cameras
IEC 61 223-2-5:1 994, Evaluation and routine testing in medical imaging departments – Part 2-5:
Constancy tests – Image display devices