2015年8月20日 · If I'm looking at a background gamma spectrum with a big peak at 1460KeV (approximately 180 counts) and I attribute this peak to the presence of K-40, should I expect to see the single and double escape peaks for K-40?

Specific to radioanalysis of biota samples from Fukushima radiation project using a planar low energy germanium detector to measure Potassium isotope K40, this is the number of counts between 1459.4 and 1465.1 keV of a spectrum that are above the continuum level.

Below is a one hour spectrum of K-40 recorded from a kg of Potassium Chloride with a GS-MAX-8000 and GS-1515-NAI detector. The radioactive isotope of potassium is a naturally occurring and exists in all living organisms, bananas and brazil nuts have relatively high concentrations of …

Potassium-40 (K-40) is a naturally occurring radioactive isotope of potassium with a half-life of approximately 1.25 billion years. It undergoes decay via beta emission and electron capture, producing argon-40 and calcium-40.

2022年8月24日 · Potassium-40 (K) is a radioactive isotope of potassium which has a long half-life of 1.25 billion years. It makes up about 0.012% (120 ppm) of the total amount of potassium found in nature. Potassium-40 is a rare example of a nuclide that undergoes both types of beta decay.

2017年6月24日 · Potassium-40 is a rare example of an isotope that undergoes all three types of beta decay. About 89.28% of the time, it decays to calcium-40 (40 Ca) with emission of a beta …

暗物质粒子CsI(Na) 直接探测研究 张烜 核探测与核电子学重点实验室年会(2017)

2019年6月2日 · 积分零压缩算法减小基线噪声影响 PSD K40,1460keV -160℃ K40,1460keV -120℃ -160℃ Tl208,2614keV Tl208,2614keV Cerenkov Cerenkov alpha alpha gamma gamma 能量刻度 K40,1460keV -160℃ K40,1460keV -120℃ room temperature K40,1460keV Tl208,2614keV Tl208,2614keV Tl208,2614keV • 电子反冲：0.24p.e./keVee • 核反冲：0.4p ...

Samples were measured by a gamma spectrometry system, using a high purity germanium (HPGe) detector. The detector was shielded by 10 cm all sides with cadmium copper in the inner sides. The...

Specific to radioanalysis of biota samples from Fukushima radiation project using a planar low energy germanium detector to measure Potassium isotope K40, this is the error in reporting err_K40_area_1460KeV.