深圳灣邊貿(mào)易供應(yīng)進(jìn)口英國Harwell Radspin丙氨酸輻射劑量計(jì)價(jià)格優(yōu)惠，Harwell Radspin丙氨酸輻射劑量丸，英國Harwell Dosimeters氨酸輻射劑量丸價(jià)格優(yōu)惠！測(cè)量alpha射線，Beta射線，gamma射線，X射線輻射！
品名： Harwell Red 4034 pmma輻射劑量計(jì)，Harwell Amber 3042 pmma 輻射劑量計(jì), Harwell Radspin輻射劑量劑，Harwell Alanine Pellets劑量計(jì)。
品牌： Harwell Dosimeters
丙氨酸劑量計(jì)是一個(gè)國際認(rèn)可的技術(shù)在各種領(lǐng)域的輻射劑量測(cè)量。在氨基酸丙氨酸輻射與電離輻射引起的自由基的產(chǎn)生（未成對(duì)電子），其中的數(shù)字是吸附在很寬的劑量范圍內(nèi)的劑量成正比。的組織等效劑量計(jì)材料的結(jié)晶結(jié)構(gòu)抵消自由基的重組。一個(gè)衰落的丙氨酸產(chǎn)生的信號(hào)只觀察到劑量值高于其光和位于一個(gè)每年百分之幾的范圍。
的輻射引起的測(cè)量信號(hào)的非破壞性讀出的電子自旋共振（ESR）手術(shù)。用ESR光譜儀仔細(xì)調(diào)整和由內(nèi)到200kGy 2Gy范圍使用適當(dāng)?shù)膭┝坑?jì)的劑量值可確定（3.5%，整體的不確定性在95%的置信水平）。
丙氨酸劑量計(jì)是小，結(jié)構(gòu)緊湊，易于處理的。它們的特點(diǎn)是低的溫度的影響，濕度和劑量率以及較寬的測(cè)量范圍，這使得它們適用于放射治療，血液中的輻照裝置和工業(yè)輻照設(shè)施。由于它的高質(zhì)量和低成本的劑量測(cè)定系統(tǒng)可以利用參考和常規(guī)劑量。
溫度系數(shù)：0.00176 + / - 0.00005 / K
When pellets containing the amino acid alanine are irradiated, stable free radicals are produced in concentration which depends on exposure.
The measured response to microwaves of the pellet placed in a manetic field of a bagnetic resonance spectrometer, is quantitively related to the radiation dose which the pellet absorbed.
Radspin has a functional dose range of 0.1 kGy to 70 kGy (0.01 kGy to 100kGy may also be achieved) which makes it idea for almost any range of irradiation processes.
90.9% Amino acid L-alpha alanine
9.1% Paraffin wax
Diameter: 4.828mm +/- 0.01mm (5mm to special order)
Height: 2.8mm +/- 0.1mm
Mass: 60mg +/- 2mg within the overall batch, +/- 0.6mg within a lot. (standard deviation 0.3mg)
Two Formats:
Plain Pellets, bulk packed
Radspin Dosimeters, consisting of pellets sealed in bar coded labelled aluminium foil blisters, packed 1,000 per carton.
Mass: CV 0.5%
Irradiation response: CV 0.5% NPL irradiated. (not packed)
Each batch is verified by NPL comparision.
Eight years from the date of release.
