Intercomparison Measurements of Extremity Dosemeters in Beta and/or Photon Radiation Fields

Helmstädter, K.; Ambrosi, P.

doi:10.1093/oxfordjournals.rpd.a006577

Cited by 3 publications

(3 citation statements)

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“…A similar intercomparison was organized 7 years ago by the PTB for extremity dosemeters in beta and/or photon radiation fields (Helmstädter et al, 2001). The study was more oriented in the requirements of the extremity dosemeters for the above fields.…”

Section: Introductionmentioning

confidence: 98%

Intercomparison on measurements of the quantity personal dose equivalent, (0.07), by extremity ring dosimeters in medical fields

Carinou¹,

Donadille²,

Ginjaume³

et al. 2008

Radiation Measurements

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Section: Introductionmentioning

confidence: 98%

Intercomparison on measurements of the quantity personal dose equivalent, (0.07), by extremity ring dosimeters in medical fields

Carinou¹,

Donadille²,

Ginjaume³

et al. 2008

Radiation Measurements

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“…This representation permits calculation of the response of each dosimeter as the ratio between the dosimeter reading and the conventionally true value, and comparison of this ratio with the limits given by the "trumpet curve" for beta radiation (Helmstädter and Ambrosi 2001). Finally, the "trumpet curve" limits permit the determination of the maximum allowable relative deviation of the measured value from the conventionally true value.…”

Section: Methodsmentioning

confidence: 99%

“…In literature (Helmstädter and Ambrosi 2001), different types of TLDs for beta radiation (beta-TLDs) were compared. It turned out that their response to beta rays depended on their technical features (material, filter, thickness, etc.…”

Section: Introductionmentioning

confidence: 99%

Comparison of Two Different Types of Lif:mg,cu,p Thermoluminescent Dosimeters for Detection of Beta Rays (Beta-Tlds) From 90sr/90y, 85kr and 147pm Sources

et al. 2011

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Targeted radionuclide therapies in nuclear medicine departments increasingly depend on using unsealed beta radiation sources in the labeling of peptides and antibodies. Monitoring doses received by the fingers and hands during these procedures is best accomplished with TLD dosimeters that can be located at the fingertips. The present study examines the response of two TLD dosimeters (MCP-Ns and GR200A) to 90Sr/90Y, 85Kr, and 147Pm. The dosimeters were supplied by two different services, and all irradiations were performed at the PTB Institute in Germany. Each dosimetry service evaluated the dosimeters without knowledge that they had been purposefully irradiated. The accuracy and precision of the dosimeters were evaluated as a function of delivered dose, energy of beta particles and angular incidence. The results are compared to performance measures recommended by the IEC. Both dosimeter types displayed significant energy dependence. Angular dependence was moderate. Accuracy and precision as a function of dose (linearity) differed between the two systems, with the MCP-Ns being noticeably better than the GR200A. The superior precision makes the MCP-Ns much more useful for extremity dose measurements. The differences between these two dosimeter systems reinforce the need to evaluate a dosimeter carefully before using it in the daily work routine.

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Quality assurance of personal beta particle dosemeters used for individual monitoring of occupationally exposed persons

Helmstädter

Ambrosi

2006

Radiation Protection Dosimetry

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As a result of investigations and intercomparison measurements organised from 1996 to 1999 by PTB, several types of personal dosemeters, all based on TLD, were selected by the dosimetry services for the measurement of the personal dose equivalent Hp(0.07) in beta and/or photon radiation fields. These dosemeters have now the status of legal personal beta partial-body dosemeters. Workplaces at which beta radiation might significantly contribute to the doses to the extremities are to be found today with increasing frequency in radiation therapy, radiation source production and nuclear power plants. Quality assurance for beta personal dosemeters is stipulated by guidelines for the official dosimetry service and is carried out by way of the intercomparison measurements organised periodically by the PTB. The results are evaluated based on the recommendations of the German Commission on Radiological Protection (SSK). The procedure of these intercomparison measurements will be explained in detail. The experience gained from three series of comparisons with seven types of fingerring dosemeters will be described and the results will be presented. The anonymity of the dosemeter types and of the participants in the intercomparison will be preserved.

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Intercomparison Measurements of Extremity Dosemeters in Beta and/or Photon Radiation Fields

Cited by 3 publications

References 0 publications

Intercomparison on measurements of the quantity personal dose equivalent, (0.07), by extremity ring dosimeters in medical fields

Intercomparison on measurements of the quantity personal dose equivalent, (0.07), by extremity ring dosimeters in medical fields

Comparison of Two Different Types of Lif:mg,cu,p Thermoluminescent Dosimeters for Detection of Beta Rays (Beta-Tlds) From 90sr/90y, 85kr and 147pm Sources

Quality assurance of personal beta particle dosemeters used for individual monitoring of occupationally exposed persons

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