IEC 60412:2007

INTERNATIONAL IEC
STANDARD
CEI
NORME
Second edition
INTERNATIONALE
Deuxième édition
2007-06
Nuclear instrumentation –
Scintillation detectors –
Nomenclature (identification) –
Standard dimensions of scintillators

Instrumentation nucléaire –
Détecteurs à scintillation –
Nomenclature (identification) –
Dimensions normalisées des scintillateurs

Reference number
Numéro de référence
IEC/CEI 60412:2007
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INTERNATIONAL IEC
STANDARD
CEI
NORME
Second edition
INTERNATIONALE
Deuxième édition
2007-06
Nuclear instrumentation –
Scintillation detectors –
Nomenclature (identification) –
Standard dimensions of scintillators

Instrumentation nucléaire –
Détecteurs à scintillation –
Nomenclature (identification) –
Dimensions normalisées des scintillateurs
PRICE CODE
K
CODE PRIX
Commission Electrotechnique Internationale
International Electrotechnical Commission
МеждународнаяЭлектротехническаяКомиссия
For price, see current catalogue
Pour prix, voir catalogue en vigueur

– 2 – 60412 © IEC:2007
CONTENTS
FOREWORD.3
INTRODUCTION.5

1 Scope and object.6
2 Scintillation detectors nomenclature (identification) .6
3 Standard dimensions of scintillators .9
3.1 Diameters of scintillators .9
3.2 Heights of scintillators .9
3.3 Tolerances .10

Table 1 – Diameters of scintillators .7
Table 2 – Heights of scintillators .7

60412 © IEC:2007 – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
NUCLEAR INSTRUMENTATION –
SCINTILLATION DETECTORS –
NOMENCLATURE (IDENTIFICATION) –
STANDARD DIMENSIONS OF SCINTILLATORS

FOREWORD
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International Standard IEC 60412 has been prepared by IEC technical committee 45: Nuclear
instrumentation.
This second edition cancels and replaces the first edition published in 1973. It constitutes a
technical revision.
The main changes with respect to the previous edition are as follows:
– addition of nomenclature of scintillation detectors.

– 4 – 60412 © IEC:2007
The text of this standard is based on the following documents:
FDIS Report on voting
45/642/FDIS 45/644/RVD
Full information on the voting for the approval of this standard can be found in the report on
voting indicated in the above table.
This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.
The committee has decided that the contents of this publication will remain unchanged until
the maintenance result date indicated on the IEC web site under "http://webstore.iec.ch" in
the data related to the specific publication. At this date, the publication will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
60412 © IEC:2007 – 5 –
INTRODUCTION
Now the manufacturers of scintillation detectors carry out nomenclature of production at their
own choosing emphasizing, first of all, trade marks as corresponding abbreviations.
Nomenclature is complex enough and includes type of detector, scintillator material, geometry
and dimensions scintillator, material of housing and window, type and dimensions of
photomultiplier tube, presence of additional electronic units, presence of other special units.
Moreover, various manufacturers have different order and contents of the mentioned sections
of type numbering. It is difficult for a customer of scintillation detectors to understand such
systems of nomenclature. The situation can be improved by the introduction of uniformity in
type numbering system, thus preserving firms marks and abbreviations. Thus it is advisable to
place sections of nomenclature in strict order, being guided by the principle of "expansion" of
scintillation detector complication.
Following such order brings uniformity in nomenclature construction, facilitates its
comprehension and promotes a correct choice of scintillation production by consumers.

– 6 – 60412 © IEC:2007
NUCLEAR INSTRUMENTATION –
SCINTILLATION DETECTORS –
NOMENCLATURE (IDENTIFICATION) –
STANDARD DIMENSIONS OF SCINTILLATORS

1 Scope and object
This International Standard gives guidelines for scintillation detectors nomenclature
(identification) and standard dimensions of scintillators.
This Standard is applicable to all types of solid organic and inorganic scintillators used in
detectors for scintillation counting and spectrometry.
The object of this standard is to define a standardized nomenclature for scintillation detectors
in which most of the properties can be found.
The object of this standard is to standardize the dimensions of bare scintillators in order to
facilitate interchangeability of non-encapsulated scintillators and to facilitate comparisons of
measurements with encapsulated scintillators.
NOTE The identification label laid down in clause 2 of the present standard includes certain dimensions which
may be expressed in millimetres or inches. The SI system recommends the use of millimetres rather than inches.
2 Scintillation detectors nomenclature (identification)
The identification of a detector is by a predefined sequence of specification items described
below. Each specification item refers to a specific property of the detector material and/or
construction.
If an item is not specifically defined, the item is entered as an “X” and the specification shall
be defined by the manufacturer.
The general structure of an identification label is:
2.1 2.2 2.3 2.4 2.5 2.6/2.7 2.8 2.9 2.10
Where:
2.1 – Geometry of the scintillator
V – square;
R – rectangular;
S – spherical;
H – hexagonal;
C – cylindrical.
2.2 – Diameter of the scintillator in millimetres (specification in inches shall be marked
as such, e.g. 2’’)
60412 © IEC:2007 – 7 –
In the case of rectangular scintillator dimensions, the two measures are separated by the
letter "x" (see Example 3, below). The most frequently found (standard) dimensions of
scintillator diameters are listed in Table 1.
Table 1 – Diameters of scintillators
Diameter Diameter
mm Inches mm Inches
3,2 0,125 44,5 1,750
4,0 0,157 50,8 2,000
6,3 0,250 63,0 2,480
10,0 0,394 63,5 2,500
12,7 0,500 76,2 3,000
16,0 0,630 100,0 3,937
19,0 0,750 101,6 4,000
25,0 0,984 127,0 5,000
25,4 1,000 152,4 6,000
31,8 1,250 160,0 6,299
38,1 1,500 203,2 8
40,0 1,575
2.3 – Detector configuration
This definition is producer-specific, for example:
IMP – integrally mounted photomultiplier;
C – crystal without photomultiplier.
2.4 – Height of the scintillator in millimetres (specification in inches shall be marked as
such, e.g. 4")
The most frequently found (standard) dimensions of scintillator heights are listed in Table 2.

Table 2 – Heights of sc
...