Occupational Radiation Exposure in New Zealand

Practical guidelines for personal monitoring and estimation of effective dose and dose to the lens of the eye in interventional procedures

“…The comparison is done with the occurrence probability for the effective dose being higher than 0.5 and 1.6 mSv and the respective confidence intervals. From the table we can see that the H p (10) under and the effective dose values calculated [8,18] give similar results, while the results from [19,20] are closer to the reference values. The double-dosimetry algorithms proposed in [19] are more conservative, while the algorithm in [18] is very similar to the results from the dosemeters under the protection.…”

“…From the table we can see that the H p (10) under and the effective dose values calculated [8,18] give similar results, while the results from [19,20] are closer to the reference values. The double-dosimetry algorithms proposed in [19] are more conservative, while the algorithm in [18] is very similar to the results from the dosemeters under the protection. Therefore, we can say that taking into account the non-conservative performance of one dosemeter worn either over or under the protection in the high-dose region (i.e.…”

“…Following the conclusions of Negri et al [17], in this study we assume as the best estimate of the effective dose, E ref , the mean value (see equation ( 3)) of the following three algorithms of double dosimetry: (10) under + 0.05H p (10) over [18],…”

“…In table 4 the algorithms that use two dosemeters [18][19][20] were compared using the values of H p (10) under and the reference values. The comparison is done with the occurrence probability for the effective dose being higher than 0.5 and 1.6 mSv and the respective confidence intervals.…”

Elevated chromosome translocation frequencies in New Zealand nuclear test veterans

“…Although several studies have been conducted regarding the health of nuclear veterans from Britain, USA, Australia and New Zealand (Pearce, 1990;Pearce et al, 1990;Rabbitt Roff, 1999;Dalager et al, 2000;Muirhead et al, 2003), the small number of participants in the New Zealand group was always going to make epidemiological studies of this cohort difficult, as any radiation-induced cancers that might result would not easily be detectable against background incidences within the spectrum of different cancers that may arise spontaneously (McEwan, 1988). Nevertheless, some studies have found moderate increases in the incidences of haematological cancers in the New Zealand veterans, such as leukaemia .…”