SIST EN 61788-22-1:2018

SLOVENSKI STANDARD
SIST EN 61788-22-1:2018
01-januar-2018
Superprevodnost - 22-1. del: Superprevodne elektronske naprave - Splošna
specifikacija za senzorje in javljalnike (IEC 61788-22-1:2017)
Superconductivity - Part 22-1: Superconducting electronic devices - Generic specification
for sensors and detectors (IEC 61788-22-1:2017)
Ta slovenski standard je istoveten z: EN 61788-22-1:2017
ICS:
17.220.20 0HUMHQMHHOHNWULþQLKLQ Measurement of electrical
PDJQHWQLKYHOLþLQ and magnetic quantities
29.050 Superprevodnost in prevodni Superconductivity and
materiali conducting materials
SIST EN 61788-22-1:2018 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN 61788-22-1:2018

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SIST EN 61788-22-1:2018


EUROPEAN STANDARD EN 61788-22-1

NORME EUROPÉENNE

EUROPÄISCHE NORM
November 2017
ICS 17.220; 29.050

English Version
Superconductivity - Part 22-1: Superconducting electronic
devices - Generic specification for sensors and detectors
(IEC 61788-22-1:2017)
Supraconductivité - Partie 22-1:Composants électroniques Supraleitung - Teil 22-1: Supraleitende Elektronik -
supraconducteurs - Spécification générique pour capteurs Generische Spezifikationen für Sensoren und Detektoren
et détecteurs (IEC 61788-22-1:2017)
(IEC 61788-22-1:2017)
This European Standard was approved by CENELEC on 2017-08-31. CENELEC members are bound to comply with the CEN/CENELEC
Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration.
Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC
Management Centre or to any CENELEC member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by translation
under the responsibility of a CENELEC member into its own language and notified to the CEN-CENELEC Management Centre has the
same status as the official versions.
CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic,
Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden,
Switzerland, Turkey and the United Kingdom.


European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2017 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
 Ref. No. EN 61788-22-1:2017 E

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SIST EN 61788-22-1:2018
EN 61788-22-1:2017
European foreword
The text of document 90/388/FDIS, future edition 1 of IEC 61788-22-1, prepared by
IEC/TC 90 "Superconductivity" was submitted to the IEC-CENELEC parallel vote and approved by
CENELEC as EN 61788-22-1:2017.

The following dates are fixed:
(dop) 2018-05-31
• latest date by which the document has to be
implemented at national level by
publication of an identical national
standard or by endorsement
• latest date by which the national (dow) 2020-08-31
standards conflicting with the
document have to be withdrawn

Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CENELEC shall not be held responsible for identifying any or all such patent rights.

Endorsement notice
The text of the International Standard IEC 61788-22-1:2017 was approved by CENELEC as a
European Standard without any modification.
In the official version, for Bibliography, the following note has to be added for the standard indicated:

ISO/TS 80004-2:2015 NOTE Harmonized as CEN ISO/TS 80004-2:2017 (not modified).
2

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SIST EN 61788-22-1:2018
EN 61788-22-1:2017
Annex ZA
(normative)

Normative references to international publications
with their corresponding European publications

The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments)
applies.

NOTE 1  Where an International Publication has been modified by common modifications, indicated by (mod), the relevant
EN/HD applies.

NOTE 2  Up-to-date information on the latest versions of the European Standards listed in this annex is available here:
www.cenelec.eu.

Publication Year Title EN/HD Year

IEC 60027 Series Letter symbols to be used in electrical EN 60027 Series
technology
IEC 60050-815 -  International Electrotechnical Vocabulary - - -
Part 815: Superconductivity
IEC 60417-DB -  Graphical symbols for use on equipment - -
IEC 60617-DB -  Graphical symbols for diagrams - -
1
ISO 1000 -  SI units and recommendations for the use - -
of their multiples and of certain other units
ISO 7000 -  Graphical symbols for use on equipment - - -
Registered symbols


1
Superseded by ISO 80000-1.
3

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SIST EN 61788-22-1:2018



IEC 61788-22-1

®


Edition 1.0 2017-07




INTERNATIONAL



STANDARD



















Superconductivity –

Part 22-1: Superconducting electronic devices – Generic specification for

sensors and detectors


























INTERNATIONAL

ELECTROTECHNICAL


COMMISSION





ICS 17.220; 29.050 ISBN 978-2-8322-4586-6



  Warning! Make sure that you obtained this publication from an authorized distributor.


® Registered trademark of the International Electrotechnical Commission

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SIST EN 61788-22-1:2018
– 2 – IEC 61788-22-1:2017 © IEC 2017
CONTENTS
FOREWORD . 4
INTRODUCTION . 6
1 Scope . 7
2 Normative references . 7
3 Terms and definitions . 7
4 Symbols . 10
5 Terminology and classification . 11
5.1 Terminology . 11
5.2 Classification . 14
6 Cryogenic operation condition . 15
7 Marking . 15
7.1 Device identification . 15
7.2 Packing . 15
8 Test and measurement procedures . 15
Annex A (informative) Coherent detection . 16
A.1 Superconducting hot electron bolometric (SHEB) type . 16
A.2 Superconducting tunnel junction (STJ) type . 17
A.3 Superconducting quantum interference device (SQUID) type . 18
Annex B (informative) Direct detection . 20
B.1 Metallic magnetic calorimetric (MMC) type . 20
B.2 Microwave kinetic inductance (MKI) type . 21
B.3 Superconducting strip (SS) type . 22
B.4 Superconducting tunnel junction (STJ) type . 22
B.5 Transition edge sensor (TES) type . 23
Annex C (normative) Graphical symbols for use on equipment and diagrams . 25
C.1 Superconducting region, one superconducting connection . 25
C.2 Superconducting region, one normal-conducting connection . 25
C.3 Normal-superconducting boundary . 25
C.4 A variation . 26
C.5 Josephson junction . 26
Bibliography . 27

Figure A.1 – SHEB mixer . 17
Figure A.2 – STJ mixer . 18
Figure A.3 – DC SQUID . 19
Figure B.1 – MMC detector . 20
Figure B.2 – MKI detector . 21
Figure B.3 – SS detector . 22
Figure B.4 – STJ detector . 23
Figure B.5 – TES detector . 24
Figure C.1 – Superconducting region, one superconducting connection . 25
Figure C.2 – Superconducting region, one normal-conducting connection . 25

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SIST EN 61788-22-1:2018
IEC 61788-22-1:2017 © IEC 2017 – 3 –
Figure C.3 – Superconducting region, one superconducting connection, and one
normal-conducting connection (normal-superconducting boundary, IEC 60417-
6370:2016-09) . 25
Figure C.4 – Series connection . 26
Figure C.5 – Superconducting region, two superconducting connections with extremely
small non-superconducting region (Josephson junction, IEC 60417-6371:2016-09) . 26

Table 1 – Measurands . 12
Table 2 – Classification of measurands . 12
Table 3 – Nomenclature of superconducting sensors and detectors: type, full names,
and acronym examples . 13
Table 4 – Classification of detection principles . 14

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SIST EN 61788-22-1:2018
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INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________

SUPERCONDUCTIVITY –

Part 22-1: Superconducting electronic devices –
Generic specification for sensors and detectors

FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of IEC is to promote
international co-operation on all questions concerning standardization in the electrical and electronic fields. To
this end and in addition to other activities, IEC publishes International Standards, Technical Specifications,
Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as "IEC
Publication(s)"). Their preparation is entrusted to technical committees; any IEC National Committee interested
in the subject dealt with may participate in this preparatory work. International, governmental and non-
governmental organizations liaising with the IEC also participate in this preparation. IEC collaborates closely
with the International Organization for Standardization (ISO) in accordance with conditions determined by
agreement between the two organizations.
2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international
consensus of opinion on the relevant subjects since each technical committee has representation from all
interested IEC National Committees.
3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC
Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any
misinterpretation by any end user.
4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
transparently to the maximum extent possible in their national and regional publications. Any divergence
between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in
the latter.
5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity
assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any
services carried out by independent certification bodies.
6) All users should ensure that they have the latest edition of this publication.
7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and
members of its technical committees and IEC National Committees for any personal injury, property damage or
other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and
expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC
Publications.
8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
indispensable for the correct application of this publication.
9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of
patent rights. IEC shall not be held responsible for identifying any or all such patent rights.
International Standard IEC 61788-22-1 has been prepared by IEC technical committee 90:
Superconductivity.
The text of this standard is based on the following documents:
FDIS Report on voting
90/388/FDIS 90/391/RVD

Full information on the voting for the approval of this International Standard can be found in
the report on voting indicated in the above table.
This document has been drafted in accordance with the ISO/IEC Directives, Part 2.
A list of all parts in the IEC 61788 series, published under the general title Superconductivity,
can be found on the IEC website.

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SIST EN 61788-22-1:2018
IEC 61788-22-1:2017 © IEC 2017 – 5 –
The committee has decided that the contents of this document will remain unchanged until the
stability date indicated on the IEC website under "http://webstore.iec.ch" in the data related to
the specific document. At this date, the document will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
A bilingual version of this publication may be issued at a later date.

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INTRODUCTION
Superconductivity offers various possibilities for the realization of sensing and detection of a
variety of measurands. Several sensors and detectors have been developed, exploiting
features like superconducting energy gaps, sharp normal-superconducting transition,
nonlinear I–V characteristics, superconducting coherent states, and quantization of magnetic
flux. All these properties can be influenced by the interaction with electromagnetic fields,
photons, ions, etc. Superconducting sensors and detectors have extremely high performance
for energy resolution, time response, and low noise, most of which cannot be realized by any
other phenomena.
The word "sensor" is normally used for measuring stationary or slowly changing
electromagnetic fields, physical quantities such as current and temperature. On the other
hand, the word "detector" is normally used for single quanta such as photons from infrared to
γ-rays and individual particles. However, the boundary between "sensor" and "detector" is
ambiguous. In this document, therefore, both "sensor" and "detector" are used. Additionally, a
detector using a sensor is possible, for example, X-ray detector using transition edge sensor
(TES) that measures temperature rise due to the deposition of measurand energy. In this
document, for example, the terminology "transition edge sensor X-ray detector" is used for X-
ray detection using TES.
Superconducting sensors and detectors have been applied to a variety of fields including
medical diagnosis, telecommunications, mineral exploration, astronomical instruments,
quantum information processing, and analytical instruments. For users, IEC standardization is
necessary because there is confusing terminology, there are no graphical symbols for
diagrams, and no test methods.

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SIST EN 61788-22-1:2018
IEC 61788-22-1:2017 © IEC 2017 – 7 –
SUPERCONDUCTIVITY –

Part 22-1: Superconducting electronic devices –
Generic specification for sensors and detectors



1 Scope
This part of IEC 61788-22-1 describes general items concerning the specifications for
superconducting sensors and detectors, which are the basis for specifications given in other
parts of IEC 61788 for various types of sensors and detectors. The sensors and detectors
described are basically made of superconducting materials and depend on superconducting
phenomena or related phenomena. The objects to be measured (measurands) include
magnetic fields, electromagnetic waves, photons of various energies, electrons, ions,
α-particles, and others.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their
content constitutes requirements of this document. For dated references, only the edition
cited applies. For undated references, the latest edition of the referenced document (including
any amendments) applies.
IEC 60027 (all parts), Letter symbols to be used in electrical technology
IEC 60050-815, International Electrotechnical Vocabulary – Part 815: Superconductivity
IEC 60417, Graphical symbols for use on equipment (available at: http://www.graphical-
symbols.info)
IEC 60617, Graphical symbols for diagrams (available at: http://std.iec.ch/iec60617)
ISO 1000, SI units and recommendations for the use of their multiples and of certain other
units
ISO 7000, Graphical symbols for use on equipment – Registered symbols (available at:
http://www.graphical-symbols.info)
3 Terms and definitions
For the purposes of this document, the terms and definitions given in IEC 60050-815 and the
following apply.
ISO and IEC maintain terminological databases for use in standardization at the following
addresses:
• IEC Electropedia: available at http://www.electropedia.org/
• ISO Online browsing platform: available at http://www.iso.org/obp

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3.1
additional positive feedback
APF
method enhancing voltage-flux transformation ratio by using resistance and coupling coil to
SQUID ring
3.2
critical current modulation parameter
β
L
parameter defined by 2LI /Φ , where L is the SQUID washer inductance, I is the critical
c 0 c
current of a Josephson junction, for DC SQUIDs, and a parameter defined by 2πLI /Φ for RF
c 0
SQUIDs
Note 1 to entry: The term "shielding parameter" can also be used.
3.3
Stewart-McCumber parameter
β
C
2
parameter defined by 2πI R C/Φ , where R is the normal state resistance of a Josephson
c n 0 n
junction, and C is the capacitance of a Josephson junction
3.4
bridge junction
junction formed from two superconductors connected by a superconducting bridge of small
section
Note 1 to entry: The term "microbridge" can also be used.
3.5
critical current
I
c
maximum direct current that can be regarded as flowing through a Josephson junction without
resistance
3.6
critical current density
J
c
critical current divided by the cross-section of the conductor or the junction area of the
Josephson junction
3.7
feedback coil
coil that is inductively coupled to a SQUID operated in the flux locked loop (FLL) mode
3.8
flux locked loop
FLL
method that improves linearity and dynamic range of a SQUID by using negative feedback to
keep the constant flux number in the SQUID ring
3.9
gradiometer
configuration of superconducting loops coupled to a SQUID magnetometer, or of multiple
SQUID magnetometers that are arranged so as to be insensitive to homogenous magnetic
fields or to be sensitive to magnetic field gradients

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IEC 61788-22-1:2017 © IEC 2017 – 9 –
3.10
metallic magnetic calorimetric detector
type of superconducting device that the temperature increase of a metallic absorber is
measured by sensing the magnetization change of the absorber because of measurand
energy deposition
3.11
microwave kinetic inductance detector
type of superconducting device that uses the microwave surface impedance change of a
superconducting strip because of measurand energy deposition
3.12
normal state resistance
resistance of a superconductor or a Josephson junction at a normal state
Note 1 to entry: In a superconductor or a TES, it is the resistance at a temperature just above the
superconducting transition.
Note 2 to entry: In a Josephson junction, it is the tunnelling resistance at a bias voltage well above 2∆/e.
3.13
planar gradiometer
kind of configuration of the flux pickup loop that measures a magnetic field gradient in the
plane of the flux pickup loop coupled to a SQUID
3.14
quasiparticle
excitation combining properties of an electron and a hole that is created by breaking a Cooper
pair in a superconductor
3.15
superconducting hot electron bolometric mixer
type of superconducting device that uses heterodyne mixing with the resistive transition from
the superconducting state to the normal state in a superconducting microbridge because of
measurand energy deposition
3.16
superconducting quantum interference device sensor
SQUID sensor
type of superconducting device that uses quantum interference occurring in a closed electrical
circuit containing one or more Josephson junctions
Note 1 to entry: Every measurand, for example magnetic fields or electric currents, that is transformed into a
change of magnetic flux threading the superconducting structure can be sensed by a SQUID.
3.17
SQUID array
SQA
device consisting of series and/or parallel arrays of multiple SQUIDs
3.18
nano-SQUID
device whose largest loop dimension is less than 500 nm
3.19
SQUID ring
multiply superconducting structure that contains one or more Josephson junctions
Note 1 to entry: The term "SQUID loop" can also be used.

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3.20
SQUID amplifier
current–voltage converter using a single SQUID, SQUID array or other SQUID-based current
sensor circuits
3.21
subgap region
lower branch of the hysteretic I–V characteristic of a tunnel junction where the voltage is less
than 2∆
3.22
subgap current
quasiparticle tunnelling current in the subgap region of a tunnel junction
Note 1 to entry: In Josephson tunnel junctions, the whole subgap region is observable when the DC Josephson
effect is suppressed by applying a magnetic field parallel to the plane of the junction area.
3.23
superconducting strip detector
type of superconducting device that uses the local resistive change in a long superconducting
strip because of measurand energy deposition
Note 1 to entry: The name for a photon detector, superconducting nanowire photon detector, is not recommended
for most cases, since the dimensions of superconductors are often in discord with the current definition of
"nanowire" in ISO/TS 80004-2:2015, in which "nanowire" or "nanofibre" is defined as nano-objects with two external
dimensions in the nanoscale that are approximately 1 nm to 100 nm, and the third dimensions significantly larger.
The dimensions of the superconducting strip type meet the definition of "nanoribbon" or "nanotape" in most cases.
Note 2 to entry: The terms "nanoribbon" and "nanotape" have one external dimension in the nanoscale and the
other two external dimensions significantly larger (typically by more than 3 times). In addition, the two larger
dimensions significantly differ from each other. "Nanostrip" is preferable to "nanoribbon" and "nanotape" for
superconducting sensors and detectors.
Note 3 to entry: An example of the superconducting nanowires is the strip with the dimensions of 10 nm × 30 nm
× 10 µm. The difference between the thickness and width is approximately less than 3 times. That superconductor
can be called "superconducting nanowire photon detector".
3.24
superconducting tunnel junction detector
type of superconducting device that uses the change of electron tunnelling between two
superconductors or a superconductor and a normal conductor separated by tunnelling barrier
because of measurand energy deposition
3.25
temperature sensitivity
superconducting transition edge steepness that is defined by dlnR/dlnT where R is the
resistance and T is the temperature of TES
3.26
transition edge sensor detector
type of superconducting device that uses the resistive change within a sharp normal-to-
superconducting transition as a temperature sensor because of measurand energy deposition
4 Symbols
Units, graphical and letter symbols shall be taken from the following standards:

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IEC 61788-22-1:2017 © IEC 2017 – 11 –
• IEC 60027 (all parts);
• IEC 60417;
• IEC 60617;
• ISO 1000;
• ISO 7000.
Graphical symbols for use on equipment and diagrams, such as superconducting region,
normal connection, superconducting connection, normal-superconducting boundary,
Josephson junction, are defined in Annex C, and IEC 60417 and IEC 60617. Graphical
symbols specific to other sensors or detectors are defined in other parts of IEC 61788.
5 Terminology and classification
5.1 Terminology
Table 1 lists the measurands which are defined as categories, objects, or physical quantities
that induce enegy deposition and are to be sensed or detected by superconducting sensors
and detectors. The measurands, arranged in alphabetical order, are: atoms and molecules,
elementary particles, physical quantities, and radiations. Each entry in Table 1 not only
represents the measurand itself, but also its temporal or spatial distribution.
Any other terminology peculiar to one of the devices covered by this document shall be taken
from the relevant IEC or ISO standards.

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Table 1 – Measurands
Category Object Physical quantity
Atoms and molecules Atoms Count, energy, flux, time
Organic molecules Count, energy, flux, time
Nonorganic molecules Count, energy, flux, time
Other (specify)
Elementary particles Dark matters Count, energy, flux, time
Electrons Count, energy, flux, time
Neutrinos C
...