TL response study of the CaSO4:Dy pellets with graphite for dosimetry in beta radiation and low-energy photons fields

被引：4
|
作者：
Daros, KAC
Campos, LL
Medeiros, RB
机构：
[1] Univ Fed Sao Paulo, Dept Diagnost Imagem, EPM, BR-04023900 Sao Paulo, Brazil
[2] IPEN CNEN SP, BR-05499970 Sao Paulo, Brazil
来源：
APPLIED RADIATION AND ISOTOPES | 2001年 / 54卷 / 06期
关键词：
pellets of CaSO4 : Dy plus Teflon; TLD response; TLD sensitivity;
D O I：
10.1016/S0969-8043(00)00324-9
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
The CaSO4:Dy is a good thermoluminescent dosimeter because of its high sensitivity and low cost. With graphite in the pellets it is possible to reduce the energy dependence. The sensitivity and energy dependence of the different thicknesses of CaSO4:Dy pellets was studied with different amounts of graphite. The results have shown the optimal quantity of the graphite and the appropriate thickness of the pellets that can be used in dosimetry of beta field, photons or both simultaneously. (C) 2001 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码：957 / 960
页数：4
相关论文
共 50 条
  • [41] Experimental study of the response of semiconductor detectors to low-energy photons
    Lépy, MC
    Campbell, JL
    Laborie, JM
    Plagnard, J
    Stemmler, P
    Teesdale, WJ
    NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 2000, 439 (2-3): : 239 - 246
  • [42] SELF-DOSE AND FADING OF CASO4(DY-TM) AND CAF2 (NATURAL) TL PHOSPHORS IN ENVIRONMENTAL RADIATION MONITORING
    NAMBI, KSV
    NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH, 1982, 197 (2-3): : 453 - 457
  • [43] The dose and X-ray energy response of LiF:Mg,Cu,P and CaSO4:Dy thermoluminescent foils
    Kopec, R.
    Klosowski, M.
    Liszka, M.
    RADIATION MEASUREMENTS, 2013, 56 : 380 - 383
  • [44] ESR dosimetry using inorganic materials:: a case study of Li2CO3 and CaSO4:Dy as prospective dosimeters
    Murali, S
    Natarajan, V
    Venkataramani, R
    Pushparaja
    Sastry, MD
    APPLIED RADIATION AND ISOTOPES, 2001, 55 (02) : 253 - 258
  • [45] AMBIENT GAMMA RADIATION LEVELS (INDOOR AND OUTDOOR) IN THE VILLAGES AROUND JADUGUDA (INDIA) USING CARD-BASED CaSO4: DY TL DOSEMETERS
    Maharana, Mandakini
    Swarnkar, M.
    Chougaonkar, M. P.
    Mayya, Y. S.
    Sengupta, D.
    RADIATION PROTECTION DOSIMETRY, 2011, 143 (01) : 88 - 96
  • [46] Study of LiF:Mg,Ti and CaSO4:Dy dosimeters TL response to electron beams of 6 MeV applied to radiotherapy using PMMA and solid water phantoms
    Bravim, A.
    Sakuraba, R. K.
    Cruz, J. C.
    Campos, L. L.
    RADIATION MEASUREMENTS, 2011, 46 (12) : 1979 - 1981
  • [47] STUDIES ON THE EFFECT OF GRAIN-SIZE ON THE RESPONSE OF A CASO4 - DY TEFLON DISK DOSIMETER FOR MONOENERGETIC ELECTRONS AND BETA-RAYS
    SHARADA, KS
    PHYSICS IN MEDICINE AND BIOLOGY, 1986, 31 (02): : 185 - 189
  • [48] AN EXTENSIVE STUDY ON THE DOSIMETRIC PROPERTIES OF CASO4 - DY RIBBON, TLD-900, IN LOW-DOSE REGION
    FURETTA, C
    GENNAI, P
    HEALTH PHYSICS, 1981, 41 (04): : 674 - 677
  • [49] Intensity variation study of the radiation field in a mammographic system using thermoluminescent dosimeters TLD-900 (CaSO4:DY)
    Correa, E. L.
    Silva, J. O.
    Vivolo, V.
    Potiens, M. P. A.
    Daros, K. A. C.
    Medeiros, R. B.
    RADIATION PHYSICS AND CHEMISTRY, 2014, 95 : 116 - 118
  • [50] APPLICATION OF LIF-TL-PHOSPHORS FOR THE MEASUREMENT OF LOW-ENERGY (KEV) BETA-RADIATION
    GUARDUCCI, D
    OBERHOFER, M
    ATOMKERNENERGIE-KERNTECHNIK, 1981, 37 (01): : 32 - 34
12345