The possible effect on personnel dose by two copper filters covering Element 1 of the Harshaw 8814 TLD badge.
Ongoing uncertainties have existed regarding possible effects at low photon energies of two copper filters covering Element 1 of the Harshaw Type-8814 thermoluminescent dosimeter badge casing. To address these, Brookhaven National Laboratory's (BNL) Personnel Monitoring Group conducted a test in which Type-8814 badges with one copper filter covering Element 1 were irradiated at several low-energy levels side-by-side with the same number of badges with two copper filters covering Element 1. A review of exposures to personnel at Brookhaven Laboratory to possible low-energy photon flux was also conducted. From both the test and the review of exposures, it can be concluded that, for radiological work under the conditions at BNL, there is no apparent dosimetric difference if one or two copper filters cover Element 1 of the Type-8814 badge.
Reciniello
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Personnel Monitoring Group, Brookhaven National Laboratory, Upton, NY 11973-5000, USA.
Sengupta
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Thompson
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D003300:Copper; D005374:Filtration; D006801:Humans; D016273:Occupational Exposure; D011829:Radiation Dosage; D013819:Thermoluminescent Dosimetry / Q000009:adverse effects*
D003300:Copper