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SEM Competency Test

Descrição

In order to be granted access to an SEM after hours you are required to pass a competency test. You must answer all questions correctly. Please note that Adelaide Microscopy staff reserve the right to refuse after-hours access until an adequate level of competence on the instrument is demonstrated. Completion of the competency test does not guarantee access.
aoife_152
Quiz por aoife_152, atualizado more than 1 year ago
aoife_152
Criado por aoife_152 aproximadamente 8 anos atrás
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Resumo de Recurso

Questão 1

Questão
When not in use what state should the vacuum system be in:
Responda
  • Always kept under vacuum – before finishing a session the chamber must be pumped.
  • The chamber must be vented at the end of a session
  • Doesn’t matter

Questão 2

Questão
It is dangerous to move the stage when the sample is first inserted. You must first:
Responda
  • Leave the stage where it is
  • Get the sample into focus and link to the working distance
  • Move to 10mm immediately

Questão 3

Questão
If the sample is not at the correct working distance you won’t:
Responda
  • Get signal to all the detectors
  • Be able to image
  • Be able to focus

Questão 4

Questão
You can’t get an image, what do you check first:
Responda
  • The magnification is correct
  • The beam is turned on and you are looking at the sample
  • The focus is correct

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