Traduction de «High resolution gamma ray spectrometry » (Anglais → Français) :

Besides the specific checks arising from the investigations, all reference analyses must include measurement of tritium, carbon 14, strontium 90 and plutonium isotope levels, as well as a gamma spectrometry test to assess the activity levels of the main artificial radionuclides emitting gamma rays (including cobalt 60, iodine 131, caesium 134, caesium 137 and americium 241).

At present such methods utilise high-resolution gas chromatography/high resolution mass spectrometry (HRGC/HRMS).

We will also invest in high-energy gamma-ray systems to support joint efforts in screening marine containers arriving at marine ports in both countries.

Q-240 — Mr. Jaffer (Edmonton—Strathcona) — With regard to ports of entry into Canada: (a) what are the standards used by all customs officers across Canada to determine a high-risk traveller or shipment, and what is the standard procedure as to what to do with such a traveller or shipment once it is determined to be high-risk; (b) under what standard procedure are customs officers expected to refer travellers to immigration officers, and is there any standard for immigration officers to notify customs officers as to the results of such referrals; if it is determined that a traveller should be referred to an Immigration officer and there is no immigration officer at that location, what is the standard procedure that a customs officer shoul ...[+++]d follow; (c) why are there no joint Citizenship and Immigration Canada (CIC) and Canada Customs and Revenue Agency (CCRA) evaluations planned to determine the effectiveness of customs officers and immigration officers at the border; (d) is there a standard for the sharing of data and intelligence between customs officers and immigration officers; (e) is there a standard referral procedure by which customs officers can clearly determine by which points should a traveller be referred to immigration officers; (f) is there an agreement between the CCRA and CIC that would provide for periodic evaluations to be performed jointly by CCRA and CIC to determine the effectiveness of their joint operations; (g) what percentage of the time does the Primary Automated Lookout System-Highway equipment correctly read licence plates of vehicles stopped at border crossing booths; (h) what facilities exist for examining commercial shipments at the Ambassador Bridge in Windsor and where are they located in relation to the bridge customs site: (i) what is the standard procedure for ensuring that truck operators told to report to the facility actually arrive there; and (ii) under what circumstances would procedures dictate that a truck be escort ...

213Bi consequently does not produce the high energy gamma rays produced by 212Bi (with its daughter 208Tl emitting a 2.6 MeV gamma) and can therefore be handled without heavy shielding.

The accumulation in certain organs and tissues (e.g. for 211At), the conjugate stability in-vivo (e.g. for 223Ra versus Ca) or the presence of radon gas or high energy gamma ray emitting isotopes in the production and decay chain of the radionuclides (e.g. for 224Ra and 212Bi respectively) are examples of end-user problems.