Scope
This experimental work instruction applies to the use of lasers, artificial optical radiation (AOR), and UV Light.
Pre-visit
User Principal Investigator shall provide the following to the Diamond Local Contact at least eight weeks prior to the experiment at Diamond:
Assurances that User-provided equipment achieves the relevant:
Assurances that Users coming to Diamond achieve the relevant:
Assurance that the equipment is compliant with the safety requirements of the home institution.
Diamond Local Contact shall ensure compliance with the following for Diamond provided equipment:
Pre-experiment
Diamond Local Contact shall ensure that the above pre-visit requirements for User provided equipment is reviewed by a laser competent person (e.g., a Laser Responsible Officer). This shall include inspection of the equipment.
Experimental Setup
Diamond Local Contact & User Visit Principal Investigator shall collaborate to ensure adherence to:
Operation
Diamond Local Contact & User Visit Principal Investigator shall collaborate to ensure adherence to:
Essential Safety Requirements
Equipment shall be:
Essential Information Requirements
Information required:
Essential Competency Requirements
Person setting up experimental equipment shall:
Persons operating equipment shall:
Essential Experimental Setup Checklist
Essential Operation Checklist
Essential Hazard & Failure Mode Checklist
The main hazards are:
Principal failure modes are:
Checklist of Controls for Laser Systems by Classification
Class |
1 / 1M |
2 |
2M |
3R |
3B |
4 |
Engineered Controls
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Protective enclosures |
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X |
X |
Beam paths enclosed as far as reasonable |
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X |
X |
X |
X |
Beam paths directed away from doors and windows |
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X |
X |
X |
X |
Interlocks on removable housings |
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X |
X |
Service access panels only removable by tooling |
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X |
X |
Beam stop or beam attenuator |
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X |
X |
Emergency stop button |
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X |
X |
X |
X |
Activation warning system |
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X |
X |
Key control |
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X |
X |
Remote interlock connector |
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X |
X |
Mat black surfaces and tooling |
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X |
X |
Viewing portals, display screens, and collecting optics |
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X |
X |
Remote laser firing and monitoring |
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X |
X |
Admin Controls
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Risk Assessment |
X |
X |
X |
X |
X |
X |
Local Rules |
X |
X |
X |
X |
X |
X |
Laser controlled area |
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X |
X |
Equipment labels |
X |
X |
X |
X |
X |
X |
Laser area warning signs |
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X |
X |
X |
X |
NOHD determined and marked |
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X |
X |
Training for people at risk |
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X |
X |
X |
X |
Competence assessment of operators |
X |
X |
X |
X |
X |
X |
PPE
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Eye protection |
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X |
X |
X |
Skin protection |
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X |
X |
Checklist of Controls for UV Systems by Risk Group
Risk Group |
RG0 |
RG1 |
RG2 |
RG3 |
Controls
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Read the manufacturer's instructions. |
X |
X |
X |
X |
Follow the control in the procedure. |
X |
X |
X |
X |
Avoid unnecessary exposure to eyes or skin |
X |
X |
X |
X |
Do not expose others or modify the experimental setup agreed with the local contact. |
X |
X |
X |
X |
Connect the UV power supply to the hutch interlock where possible. Don't defeat interlock. |
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X |
X |
Don't remove the covers. |
X |
X |
X |
X |
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PPE
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Wear standard laboratory clothing, including a fully buttoned lab coat, long trousers, and closed-toe shoes, while paying attention to the gaps around the neck and wrist areas. |
|
X |
X |
X |
Face / Eye protection – EN 166 - EN 170 certified face shield must be worn to protect the face and eye. In addition, if the spectrum extends over 400 nm, protective eyewear must be worn with the face visor to prevent blue light hazards. |
|
X |
X |
X |
Gloves – wear gloves, ensuring the gaps are covered between the tops of the gloves and the bottom of the lab coat sleeves. |
|
X |
X |
X |
IEC 62471 describes the degree of risk from potential optical radiation hazards to minimise the need for further control measures for risk management. The defined risk groups are Exempt Group (RG0) for no risk, Risk Group 1 (RG1) for low, Risk Group 2 (RG2) for medium and Risk Group 3 (RG3) for high risk. For more information, read the UV radiation safety guide (CEO-HP-PRC-0022).
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Oxfordshire
OX11 0DE
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