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The Source
The Source was a quarterly publication, distributed free to users of ionising and non-ionising radiation in New Zealand, and on request to other interested parties. This publication has now been discontinued.
The Source: Issue 21
December 2006 (PDF - 351kB)
This issue covers the following topics:
Chernobyl 20 years on
Transport of radioactive material
Portable hand-held intra-oral dental x-ray machines
New Test-Ban Treaty monitoring station installed in Mauritania
Microwave oven testing
Advice on the licensing requirements for the use of electron
microscopes
ReSources
The Source: Issue 20
December 2005 (PDF - 129 kB)
This issue covers the following topics:
Power lines - are they safe?
Personal radiation monitoring
Biological Effects of Ionising Radiation
ReSources
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The Source: Issue 19
August 2005 (PDF - 1406 kB)
This issue covers the following topics:
Risks of cancer from low doses of radiation: confirmed or not?
Personal radiation monitoring
Second International Conference on the Security of Radioactive
Sources held recently in Bordeaux, France
ReSources
The Health Practitioners Competence Assurance Act 2003 and medical
use of radiation
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The Source: Issue 18
April 2005 (PDF - 182 kB)
This issue covers the following topics:
Mettler balances containing radioactive sources
ReSources
Biological Effects of Ionising Radiation
New Codes of Safe Practice
Ionising radiation and chronic lymphocytic leukaemia
Nuclear density meter incident
Recent NRPB reports on mobile phones
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The Source: Issue 17
December 2004 (PDF - 624 kB)
This issue covers the following topics:
Progress with the new radiation protection legislation
ReSources
A Recurring Theme
Biological Effects of Ionising Radiation
All x-rays are created equal but some are more equal than others
Personal radiation monitoring
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The Source: Issue 16
September 2004 (PDF - 104 kB)
This issue covers the following topics:
NRL Radiation Incident Response Plan
Radioactive materials package taken from Auckland depot
Updated laser Standard published
Dental drill: radiation effects arising from dental uses of x-rays
Personal radiation monitoring
2005 Recommendations of the International Commission on Radiological
Protection (ICRP)
Radiation Safety Course for Industrial Radiographers
ReSources
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The Source: Issue 15
May 2004 (PDF - 468 kB)
This issue covers the following topics:
Radiation emergency response planning: meeting of key agencies
Review of licence conditions
Can x-rays 'fry' the brain?
New reports on radiofrequency fields
Incidents involving ionising radiation
Resources
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The Source: Issue 14
November 2003 (PDF - 224 kB)
This issue covers the following topics:
A review of the radiation protection legislation
Dental drill: What is an acceptable exposure time in intra-oral
radiography?
Incidents involving ionising radiation
UV radiation information
Minister of Health signs Test-Ban Monitoring Station Contract
Resources
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The Source: Issue 13
August 2003 (PDF - 108 kB)
This issue covers the following topics:
NRL's Environmental Laboratory achieves certification as a CTBT
radionuclide laboratory
Dental drill: Dental film – a case of speed does not kill
Incidents involving ionising radiation
European Union initiatives in non-ionising radiation
The transport of radioactive material – a seminar for carriers and
other stakeholders
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The Source: Issue 12 - May 2003
(PDF - 141 kB)
This issue covers the following topics:
A review of the radiation protection legislation
News for licensees
Improved Notification of Sale of Irradiating Apparatus form
Storage of irradiating apparatus
Licensing of all chiropractors
Like a moth to the flame . . .
Transport of radioactive material: free seminars
NRL's Environmental Laboratory achieves accreditation to NZS/ISO/IEC
17025
The International Conference on the Security of Radioactive Sources
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The Source: Issue 11 - February
2003 (PDF - 1212 kB)
This issue covers the following topics:
A review of the radiation protection legislation
Dental drill: does length matter?
New international publications available regarding health risks and
electromagnetic fields
Laser safety
Security of Nuclear Density Meters
Cellphone safety update
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The Source: Issue 10 - October
2002 (PDF - 445 kB)
This issue covers the following topics:
Threat of nuclear terrorism underlines importance of security of
radioactive sources
Dental drill: collimation, collimation, collimation
Collimation in dental x-rays
Whole-body CT screening
What is whole-body CT?
What do proponents of the technique claim?
What are the negative aspects of whole-body CT screening?
Statements from professional bodies and other agencies
Why can't I choose to undergo whole-body CT?
What does this all mean for NZ?
The NRL Waste Store - changes in policy and practice
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The Source: Issue 9 - June 2002
(PDF - 247 kB)
This issue covers the following topics:
NRL gains certification to AS/NZS ISO 9001:2000
Cellphone "protectors" prosecuted
Dental drill: image quality versus patient dose - kVp
What is the kVp?
How does kVp influence dose?
But how does kVp influence image quality?
Effecting a compromise
So what is the best kVp?
Food Export Certification Service
New developments in NRL Codes of Practice
Radiation Incident Response Plan: Training of Participants and
Northland Emergency Exercise
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The Source: Issue 8 - December
2001 (PDF - 111 kB)
This issue covers the following topics:
Electric and magnetic fields and your health
Disposal of old smoke alarms: Australia reviews options
Meeting of Interagency Committee on Extremely Low Frequency and
Radiofrequency Fields
Dental drill: image quality versus patient dose
Processing of dental x-ray films
The importance of good chemistry ... and of consistent processing
conditions
The darkroom
Quality assurance
A new look for the web site
Forthcoming changes to non-medical licensing criteria
CTBT – an update
Risk assessment and contingency planning for terrorism
IEA Regional Cooperative Meeting (Asia and Pacific)
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The Source: Issue 7 - September
2001 (PDF - 266 kB)
This issue covers the following topics:
Responding to emergencies: the Radiation Incident Response Plan
New equipment at NRL
New x-ray plant
Liquid scintillation counter
Rural GP licence conditions
NRL wipe test kit now available
Supervision and instruction in medical practice
NRL Codes of safe practice and Guidance notes
Dental drill: doses to patients III
Going in to bat for the IAEA in South Africa
Nuclear safeguards: accounting for and control of nuclear material
International Agency for Research on Cancer reviews power frequency
fields and cancer risk
The Source: Issue 6 - June 2001
(PDF - 75 kB)
This issue covers the following topics:
Introducing the Radiation Protection Advisory Council (RPAC)
NRL's quality goal: ISO 9001
NRL Codes and Guidance notes: latest update
NRL matters no. 9: changes in transport requirements
RPAC news
Coronary artery calcium scoring: the current score
GP licence conditions
Radiological emergency in Panama
Radiation protection of patients: Malaga meeting notes
Dental drill: doses to patients II
New directions for the basic principles of radiation protection?
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The Source:
Issue 5 - March 2001
(PDF - 73 kB)
This issue covers the following topics:
NRL Codes of safe practice update
ReSources
Non-ionising news
Power frequency fields and cancer risk
Radiofrequency transmitter guidelines
Cellphones & brain tumours
IAEA assistance to developing countries
Dental drill: doses to patients
In the news and on the web
Changes to regulations on transport of radioactive material
Compliance with Code of safe practice for the use of nuclear density
meters
Prosecution for failure to hold a licence
Regulatory control of medical research involving the use of
radiation
Smoke detector discovery provokes emergency response in Wellington
The Source: Issue 4 - December
2000 (PDF - 158 kB)
This issue covers the following topics:
Australia and New Zealand agree to work towards uniform radiation
safety practices
Future changes to the licensing of non-medical users of radiation
NRL Codes of safe practice – amendments & erratum
Radioactive phosphate – the facts
Cellphones – exposure information & limiting devices
ReSources
Dental drill: the pregnant dentist or assistant
Intercomparison planned for personal monitoring systems
Protection from the sun
Current issues in diagnostic imaging and radiation therapy
The Source: Issue 3 - September
2000 (PDF - 222 kB)
This issue covers the following topics:
Test Ban Treaty monitoring stations officially opened
Environmental radioactivity in New Zealand and Rarotonga - annual
report 1999
Safety of sunbeds and sunlamps
Unsporting use of a laser pointer
Dental drill: the pregnant patient
Safety of radioactive materials during transport
Soil erosion studies using caesium-137
Radiopharmaceuticals and cremation
ReSources
The Source: Issue 2 - June 2000 (PDF
- 123 kB)
This issue covers the following topics:
New initiatives at NRL
Safety concerns over laser pointers
ReSources
Nuclear medicine misadministrations
The latest cellphone report
Dental drill - shielding in walls of dental surgeries
Cosmic radiation and air travel
The Source: Issue 1 – March
2000 (PDF - 113 kB)
This first issue covers the following topics:
The role of mammography in breast cancer screening
NRL calibration services
Trans-Tasman harmonisation of radiation safety practices
Cellphones – the final word?
Scattered radiation in the dental practice – where to stand
Test Ban Treaty monitoring stations: New Zealand first in the world
ReSources – recent additions to the NRL Library