Portable Nuclear Gauge Operator Licence Conditions in Qatar

The gauge that leaves the facility

One point before anything else. Meeting the conditions in the Decision is what you can prepare for. Whether a licence is granted, and when, is a decision of the competent authority alone, and nothing in this explanation and nothing in any course is a commitment that a licence will be issued or that it will be issued within a given period. What this article does is set out the condition as the instrument states it and point to the training that bears on it.

A portable nuclear gauge is used in a working area that the operator has to establish himself, afresh, at every setup. The instrument is set down, a temporary controlled area is established around it by measurement, its source rod is lowered into the material, a reading is taken, the rod is retracted to its shielded position, and the next setup begins the same way. Many such gauges carry two sources: a gamma source for density and a separate source for moisture content. The practice is ordinary, the equipment is rugged and the readings are routine, and that is precisely why the licensing of the person holding the handle is the part most often left to the end of a mobilisation.

The Qatari framework licenses that person in item 8 of the industrial applications in the schedule attached to Decision 4 of 2007, and it gives the role five conditions of its own. Item 8 sits between the supervisor entry above it, item 7, and the fixed gauge entry below it, item 9, and it is worth saying at the outset that those three are not three grades of one licence. They differ in how many conditions they contain. Item 8 and item 7 each set five conditions; item 9 sets three.

Read item 8 against item 9 and the structure of the group becomes legible. The two entries license two ways of using the same kind of source: one instrument is fixed to a vessel and stays there, the other is carried. Item 8, for the one that is carried, contains five conditions, and item 9 contains three. That is a count of what each entry contains, and it is not a ranking of the hazard of the two practices, which the items do not address at all. Nothing here removes the need to put your own case to the authority.

The five conditions

Item 8 opens with the formula that opens each of the four gauges entries: the following conditions must be present in the person who is granted a licence to work as an operator of portable nuclear gauges. The formula attaches the conditions to a person and not to an employer and requires them cumulatively, and it ties the licence to a named function: operating portable nuclear gauges. A testing laboratory does not hold this licence for its technicians.

Then come five conditions. The academic condition is that he hold the general secondary certificate or its equivalent. The first training condition is that he pass a training course in the field of nuclear gauges from an approved centre. The second is that he pass a training course in radiation protection in industrial applications from an approved centre. The experience condition is that he have practical experience of not less than one year. And the fifth is that he pass the prescribed medical examination. The prescribed medical examination is a fitness condition for the licence. It is not a protective measure, it does not stand in for any course the item names, and it does not stand in for anything in operational protection.

The academic condition is the lightest in the gauges group that still admits equivalence: it names the general secondary certificate and adds or its equivalent, and no field of study is named at all. It does not carry the phrase at minimum, where the fixed gauge entry below it writes its certificate with that phrase and without the words admitting an equivalent. Both of those are differences in the wording of the instrument between two adjacent entries. We record them and we read no rule into either, and if your own certificate turns on one of them it is a question for the Ministry rather than for us.

The two training conditions are the substance of this entry and both of them carry the same description of their source: each is to come from an approved centre. That makes item 8 the only entry in the gauges group in which both courses are described that way. The supervisor entry above it names its gauges course and says nothing about where it is to come from, and so does the calibration devices entry at item 10. We record the difference across the group and we do not build a rule on it. For a file on item 8 the practical reading is simpler than for the others: both of your course certificates have to answer a condition that describes the provider, so both providers are worth confirming in writing, by name, before either course is paid for.

One year, and what it is a year of

The experience condition reads that he have practical experience of not less than one year. Like the supervisor entry above it, it gives a number of years, describes the experience as practical, and names no field. Set that against item 4 of the same schedule, the well logging supervisor entry, where the same condition is tied to the practice by name: it reads that he have practical experience in well logging of not less than five years. The tying words are present there and absent here, and that is a difference in the wording of the instrument that we record and read no rule into.

There is one further thing about this condition that is specific to item 8, and it is practical rather than interpretive. The portable gauge is the entry in this group most often filled from a general site workforce: a technician who has been taking compaction readings on a project for a season, under someone else, is the typical candidate. So the year is usually not a year somebody set out to document, and the records that would evidence it, the ones showing that the work was practical and what it consisted of, usually do not exist by the time the licence is wanted. Whichever way the Ministry reads the condition, the file is in the same position: it has a date range and a job title and nothing that describes the work.

So the advice on this entry is to create the record now rather than to argue about the condition later. Record the dates, the employer, the projects, that the work was practical, and separately and specifically whether it involved a gauge and which kind. Then put the condition to the Ministry as it is written, with that record attached, and ask whether it is satisfied. The point of writing it down is not that we know the answer. It is that a record of what happened can be read against whatever answer comes back, and a file built on a guess about the answer cannot.

If the year is not there yet, the third part of the schedule provides the route and it provides one route only: a licence to practise radiation work as a trainee is granted to a person in whom the conditions of the licence sought are present with the exception of the experience condition, and then in that case he may not practise radiation work except under the supervision of a licensed person. The exception is for the experience condition and for that condition alone, so the secondary certificate, both courses and the medical examination all still have to be present, and the practice is under supervision. And the records that will later evidence the year have to be created while the year is being worked.

The portable entry against the fixed entry

These two entries license the two ways the same kind of gauge is used, and the table sets them against each other. It is a reading of items 8 and 9 of the industrial applications, both quoted in full on the Arabic version of these four articles, and nothing is added to it. The last two rows are the ones that matter to a planner, because they are where the two entries differ in what they contain rather than in what level they ask for.

What an employer should settle on this entry

Below is the order we use when a client asks us to look at a portable gauge crew before a mobilisation. It is the Institute's own working practice, and the items set out in this explanation impose no plan and no form of file.

Questions we are asked about this item

A technical note: the licence is not the protection

A technical note, and it is the most important passage on this page. The conditions in this Decision are licensing conditions, not site work instructions. Meeting them, and any licence that may follow, replaces nothing in operational protection, and no course makes anyone safe by itself. One rule governs every judgement about where a source is: it is settled by measurement, never by inference.

The measurement is made by the licensee, through a person qualified to make it, and the instrument has to respond to the radiation actually present and at the energies present. For a gamma source that means a gamma survey meter within its calibration validity and response-checked before work starts. Where the equipment also carries a source for measuring moisture content, the instrument has to respond to neutrons as well, because a gamma-only meter can read clean standing beside an unshielded neutron source.

What does not count is an inference. Not a mechanical indicator, not a position switch, not a painted mark, and not the fact that the work went as planned. And if the measurement does not establish that the source is shielded, the work stops where it is, no one approaches the equipment, and the licensee acts on his own emergency arrangements and notifies the Ministry. These are obligations on the licensee under the Law, the Regulation and the conditions of his own licence, and their place is not this Decision.

The equipment this entry licenses has no shutter in the sense a fixed installation has one. Its safe state is the source rod fully retracted and latched in its shielded position, and that state is established by measurement before the instrument is lifted, carried or put away, never from the handle position, a latch feel or a painted mark. Two further points belong to portable work specifically. The controlled area is not a line somebody drew once: it is established by measurement at every setup, and that is the operator who sets the instrument down. And many of these instruments carry a moisture measuring source alongside the gamma source, so an instrument that responds only to gamma radiation can read clean beside an unshielded source and tell the operator nothing. An instrument that has been struck, dropped, run over, buried in material or returned with a damaged housing is not something to be settled on site between shifts.

How the Institute can help

Two findings recur on portable gauge files. The first is a crew in which the gauge certificates are complete and the protection certificates are not, because the protection condition was read as part of the gauges qualification, and this is the one entry in the group where both conditions describe their provider, so both are capable of being challenged. The second is a year of experience recorded as a date range and a job title, on an entry that is routinely filled from a general site workforce, which leaves nothing in the file describing what the work was.

The Institute delivers radiation protection training for industrial applications, reviews a crew's licence files against item 8 condition by condition and against item 9 where the gauge is fixed, drafts the enquiries to the Ministry on the standing of a named course at a named provider and on the prescribed medical examination, and advises on the records that let a year of practical experience be evidenced while it is being worked. The nuclear gauges training the Decision names is a separate qualification obtained from a provider that offers it, and the Institute does not issue it. What the Institute delivers is the radiation protection course in industrial applications that all four of these items name as a subject; whether a particular course at a particular centre satisfies the approved-centre limb of the condition is for the Ministry to say.

Scope of what the Institute does: training and consulting. Field radiation surveys are carried out through specialist partners. The Institute does not carry out laboratory analysis, instrument calibration or equipment testing.

A note on the source of a course in these four items. All four of them ask for the radiation protection course in industrial applications to come from a centre that the Decision describes with an Arabic word this explanation renders as approved. The nuclear gauges course is treated differently between the items: in the portable gauge entry it is to come from a centre described with that same word, and in the supervisor entry and the calibration devices entry the condition names the course and says nothing at all about where it is to come from. The items set out in this explanation do not define the term, do not say who gives that approval, and do not say whether it is a general status or given for a particular course. Where the description does appear, it qualifies the provider of the training and no other party. The English word is a rendering chosen for this explanation and is not a term of art: our practical reading is to ask in the Arabic wording of the item, naming the specific course and the specific provider, and to keep the answer in writing, because what the instrument leaves open the authority settles. The Institute is a licensed training provider and describes itself that way and no other way.

A note on the authority named in the text. The word the Decision uses for the authority is the Council. It is the word of a 2007 instrument whose preamble refers to the Executive Regulation issued by decision of the President of the Supreme Council for the Environment and Natural Reserves, number 4 of 2003. The body that word names no longer exists. Competence today sits with the Ministry of Environment and Climate Change, and the unit concerned is named in the organisational decisions as the Radiation Protection Department. The word Council is kept only where this explanation renders what the instrument itself says, because that is the instrument's own word; in the Institute's own advice it is written as the Ministry. Read Council as the Ministry throughout.

This explanation is published for awareness by the radiation protection team at ALDuha Institute for Training and Environmental Consulting. The English text is an explanation, not a certified translation: the Arabic text published in the Official Gazette governs in case of any difference, and the official Arabic wording of every condition discussed here is quoted in full on the Arabic version of this article. This explanation is introductory. It is not a legal opinion, it does not replace the conditions of your own licence, and it does not replace review by the regulator. Last updated 7 October 2026.