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點擊圖片查看原圖英國Harwell 紅色4034 pmma劑量計作用在5-50kGy劑量范圍內(nèi)，其吸光率測量的變異系數(shù)小于2%
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英國Harwell 紅色4034 pmma劑量計，HarwellRadspin，英國Harwell Dosimeters，
測量alpha射線，Beta射線，gamma射線，X射線輻射！
品名：Harwell Red 4034 pmma劑量計，Harwell Amber 3042 pmma劑量計, Harwell Radspin劑量劑，Harwell Alanine Pellets劑量計。
Harwell紅色4034劑量計
說明書
用于測量劑量的Harwell紅色4034劑量計
1、材料：單批紅色4034劑量計由一塊聚**板材制作。
2、尺寸：30mm×11mm。厚度3±0.55mm
3、測量重復(fù)性：同批劑量計，在不均勻度小于±1%的輻照場中同時輻照，用640nm波長測量，在5-50kGy劑量范圍內(nèi)，其吸光率測量的變異系數(shù)小于2%。
4、校準(zhǔn)能力：在校準(zhǔn)范圍內(nèi)，所有吸光率測量數(shù)據(jù)的平均值與使用*小二乘擬合的四階多項式的數(shù)據(jù)相比，誤差在2%以內(nèi)。
5、溯源性：Harwell劑量計的校準(zhǔn)，溯源到英國物理實驗室吸收劑量標(biāo)準(zhǔn)。
與英國物理實驗室相互比較來驗證每批劑量計的校準(zhǔn)性能。
6、保質(zhì)期：從發(fā)售日期起10年內(nèi)。
7、包裝：用聚酯/鋁箔/聚酯/材料制成的帶有標(biāo)簽的小袋密封包裝，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).
