X-ray intensifying screens greatly enhance the detection by autoradiography of the radioactive isotopes 32P and 125I.
X-ray intensifying screens greatly enhance the detection by autoradiography of the radioactive isotopes 32P and 125I.
复制标题
X 射线增感屏极大地增强了放射性同位素 32P 和 125I 放射自显影的检测。
DOI：
10.1016/0003-2697(78)90333-0
复制
发表时间：
1978
影响因子：
2.9
通讯作者：
P. Shank
中科院分区：
文献类型：
--
作者：
Ronald Swanstrom;P. Shank
X射线增感屏的使用显著地增强了放射自显影术对γ射线（125 I）和高能β（32 P）粒子发射放射性同位素的探测。我们比较了五种市售的增感屏（含有不同的无机荧光粉），并结合了一些胶片和曝光条件。当在−70°C下用柯达RP皇家X-OMAT胶片拍摄放射自显影照片时，一个钨酸钙（杜邦，Cronex Lighting Plus增感屏）在32 P的检测中产生8至10倍的增强，在125 I的检测中产生30至40倍的增强。用一个增感屏，在20小时的曝光中，在10平方毫米的面积内，10 dpm的32 P和50 dpm的125 I很容易被探测到。
Detection of both γ-ray (125I) and high energy β (32P) particle-emitting radioisotopes by autoradiography is significantly enhanced by the use of X-ray intensifying screens. We have compared five commercially available intensifying screens (containing different inorganic phosphors) in combination with a number of films and exposure conditions. One calcium tungstate (Dupont, Cronex Lighting Plus intensifying screen produces an 8- to 10-fold enhancement in the detection of32P and a 30- to 40-fold enhancement in the detection of125I when an autoradiogram is made with Kodak RP ROYAL X-OMAT film at −70°C. With one intensifying screen, 10 dpm of32P and 50 dpm of125I in an area of 10 mm2are readily detectable in a 20-hr exposure.