Conveners
Session 7: Liquid and Gas Purity (continued)
- Vitaly Kudryavtsev (University of Sheffield)
Mr
Raymond NOEL
(Centre de Physique des Particules de Marseille (CPPM))
19/03/2015, 16:40
Contributed
Presentation
For many experiments working at low energy and very low counting rate in particle and astroparticle physics, the background from the Radon decay chain is one of the strongest constraints. Most of the time, activated charcoal filters are used to dynamically capture the radon from the air or from the gas of the detectors. In general case activated charcoal is a good adsorptive material. It has...
Mr
XinRan Liu
(University College London)
19/03/2015, 17:00
Contributed
Presentation
A "Radon Concentration Line" (RnCL) was developed to be used in conjunction with a state-of-the-art radon detector to achieve world leading sensitivities to 222Rn content in large gas volumes to the level of a few μBq/m3. A gas purification system was developed and installed which has demonstrated radon suppression by several orders of magnitude depending on the carrier gas. This apparatus has...
Dr
Ali DASTGHEIBI FARD
(CNRS/IN2P3/LSM)
19/03/2015, 17:20
Contributed
Presentation
The Spherical gaseous detector (or Spherical Proportional Counter, SPC) is a novel type of detector. It consists of a large spherical volume filled with gas, using a single detection readout channel. The detector allows ≈100% detection efficiency. SEDINE is a low backg round version of SPC (made of Cu_NOSV) installed at the LSM underground laboratory (4800 m.w.e) looking for rare events at...
Mr
Marco Ferrante
(Laboratori Nazionali Del Gran Sasso - INFN), Dr
Matthias Laubenstein
(Laboratori Nazionali Del Gran Sasso - INFN), Mr
Stefano Nisi
(Laboratori Nazionali del Gran Sasso - INFN)
19/03/2015, 17:40
Contributed
Presentation
An analytical method is presented to reduce the amount of 40K in sea water samples, in order to lower its interference in γ-ray analysis below 1.4 MeV due to the Compton continuum. Sodium tetraphenylborate was used to successfully precipitate 40K in the samples. A custom procedure for precipitation of potassium was developed and it was evaluated for its selectivity, repeatability and...
