Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Experiments with polarized 3He at MAMI   Experiments with polarized 3He at MAMI have already a long tradition. The A3
collaboration started in 1993 with the aim to measure the electric form factor
of the neutron. At this time MAMI was the second accelerator where experiments
with 3He were possible. Some years before this pilot experiment the development
of the apparatus to polarize 3He in Mainz started. There are two techniques
which allow to polarize sufficient large quantities of 3He. Both techniques
will be compared and the benefit of 3He for nuclear physics will be discussed.
An review of the experiments done so far with 3He at MAMI will be given and the
progress in the target development, the detector setup and the electron beam
performance will be pointed out.

12
The categories of this paper are: nucl-th
19
The categories of this paper are: eess
35
The categories of this paper are: mtrl-th
30
The categories of this paper are: q-alg
3
The categories of this paper are: physics
2
The categories of this paper are: math
4
The categories of this paper are: cond-mat
23
The categories of this paper are: solv-int
21
The categories of this paper are: adap-org
10
The categories of this paper are: q-bio
17
The categories of this paper are: q-fin
32
The categories of this paper are: atom-ph
26
The categories of this paper are: bayes-an
9
The categories of this paper are: nlin
34
The categories of this paper are: chem-ph
37
The categories of this paper are: supr-con