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点击图片查看原图英国Harwell 红色4034 pmma剂量计作用在5-50kGy剂量范围内，其吸光率测量的变异系数小于2%
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英国Harwell 红色4034 pmma剂量计，HarwellRadspin，英国Harwell Dosimeters，
测量alpha射线，Beta射线，gamma射线，X射线辐射！
品名：Harwell Red 4034 pmma剂量计，Harwell Amber 3042 pmma剂量计, Harwell Radspin剂量剂，Harwell Alanine Pellets剂量计。
Harwell红色4034剂量计
说明书
用于测量剂量的Harwell红色4034剂量计
1、材料：单批红色4034剂量计由一块聚**板材制作。
2、尺寸：30mm×11mm。厚度3±0.55mm
3、测量重复性：同批剂量计，在不均匀度小于±1%的辐照场中同时辐照，用640nm波长测量，在5-50kGy剂量范围内，其吸光率测量的变异系数小于2%。
4、校准能力：在校准范围内，所有吸光率测量数据的平均值与使用*小二乘拟合的四阶多项式的数据相比，误差在2%以内。
5、溯源性：Harwell剂量计的校准，溯源到英国物理实验室吸收剂量标准。
与英国物理实验室相互比较来验证每批剂量计的校准性能。
6、保质期：从发售日期起10年内。
7、包装：用聚酯/铝箔/聚酯/材料制成的带有标签的小袋密封包装，每箱1000片。
Harwell Red 4034
Harwell Red 4034 Dosimeters
Red 4034 are made from radiation-sensitivepoly-methylmethacrylate (pmma) in the form of optically transparentpieces individually sealed in laminate sachets. They darken whenirradiated, and the radiation-induced darkening, accuratelymeasurable by means of a spectrophotometer, is a function of theradiation dose absorbed.
Dose Range
Red 4034 has a functional dose range of 5 kGy to 50 kGy whichmakes it idea for a wide range of irradiation processes.
Material
The 4034 Red is made from single batches of cast sheets ofpoly-methylmethacrylate (pmma)
Dimensions
Harwell Dosimeters then cut the sheets down into plaques of 30mmx 11mm with a thickness of 3mm (+/- 0.55mm)
Packaging
After **** inspection the dosimeters are packaged into sealedsachets made of polyester/aluminium foil/polyester/polyethylenelaminate. With each sachet being labeled with a unique bar codedlabel.
Packed 1,000 per carton.
(Packing to defined AQL's checked to BS6001 (ISO 2859-1), singlenormal inspection, level II.)
Measurement reproducibility
Coefficient of variation of specific absorbance measurements onsets of dosimeters for the batch, simltaneously irradiatedtogether, in a gamma radiation field uniform within +/- 1%, is 2%over the entire calibrated range, 5 to 50 kGy.
Calibration quality
Over the calibrated range, all mean specific absorbance datapoints thus obtained are within 2% of a fourth-order polynomialleast-squares fit to the data.
Shelf-life
Ten years from the date of release.
Traceability
Harwell calibration is traceable to the UK standard of absorbeddose at the National Physical Laboratory (NPL).
