PMID- 15614360
OWN - NLM
STAT- MEDLINE
DCOM- 20050418
LR  - 20131121
IS  - 0003-2654 (Print)
IS  - 0003-2654 (Linking)
VI  - 130
IP  - 1
DP  - 2005 Jan
TI  - Determination of boron in materials by cold neutron prompt gamma-ray activation 
      analysis.
PG  - 99-103
AB  - An instrument for cold neutron prompt gamma-ray activation analysis (PGAA), 
      located at the NIST Center for Neutron Research (NCNR), has proven useful for the 
      measurement of boron in a variety of materials. Neutrons, moderated by passage 
      through liquid hydrogen at 20 K, pass through a (58)Ni coated guide to the PGAA 
      station in the cold neutron guide hall of the NCNR. The thermal equivalent 
      neutron fluence rate at the sample position is 9 x 10(8) cm(-2) s(-1). Prompt 
      gamma rays are measured by a cadmium- and lead-shielded high-purity germanium 
      detector. The instrument has been used to measure boron mass fractions in 
      minerals, in NIST SRM 2175 (Refractory Alloy MP-35-N) for certification of boron, 
      and most recently in semiconductor-grade silicon. The limit of detection for 
      boron in many materials is <10 ng g(-1).
FAU - Paul, Rick L
AU  - Paul RL
AD  - Analytical Chemistry Division, National Institute of Standards and Technology, 
      Gaithersburg, MD 20899, USA.
LA  - eng
PT  - Journal Article
DEP - 20041124
PL  - England
TA  - Analyst
JT  - The Analyst
JID - 0372652
RN  - N9E3X5056Q (Boron)
SB  - IM
MH  - Boron/*analysis
MH  - Neutrons
MH  - Spectrometry, Gamma/instrumentation/methods
EDAT- 2004/12/23 09:00
MHDA- 2005/04/19 09:00
CRDT- 2004/12/23 09:00
PHST- 2004/12/23 09:00 [pubmed]
PHST- 2005/04/19 09:00 [medline]
PHST- 2004/12/23 09:00 [entrez]
AID - 10.1039/b412223b [doi]
PST - ppublish
SO  - Analyst. 2005 Jan;130(1):99-103. doi: 10.1039/b412223b. Epub 2004 Nov 24.